Gotowe bibliografie tematyczne / Low latitude region

Spis treści

Artykuły w czasopismach
Rozprawy doktorskie
Książki
Części książek
Streszczenia konferencji
Raporty organizacyjne

Gotowa bibliografia na temat „Low latitude region”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 19 lipca 2025

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Low latitude region”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Low latitude region"

Santos, Jefferson Souza, Debra Jean Skene, Cibele Aparecida Crispim, and Claudia Roberta de Castro Moreno. "Seasonal and Regional Differences in Eating Times in a Representative Sample of the Brazilian Population." Nutrients 15, no. 18 (2023): 4019. http://dx.doi.org/10.3390/nu15184019.

Pełny tekst źródła

Streszczenie:

Human food intake and its timing are a complex behavior that can be influenced by a variety of factors, some of which may vary from season to season or from region to region. In this study, our aim was to investigate the seasonal variation in food intake times, with a particular focus on how these may vary across different regions of a country. We conducted an analysis of data from 20,622 adults from the National Household Budget Survey (POF-IBGE), encompassing complete food diaries collected from individuals residing in Brazil, and thereby ensuring representation across different latitudes. Each participant’s daily food intake was reported for two non-consecutive days at different times in the same week using food diaries. An ANOVA revealed a later food intake time in the evening in high-latitude regions compared to low-latitude regions. The Sidak post-hoc test showed a significant interaction effect between region and season, demonstrating a pattern of early First Intake Time and Eating Midpoint in the Northeast region during spring/summer. Additionally, we observed an independent effect of the region, as early food intake times were found in low-latitude regions. These findings offer a basis for discussing food intake times among individuals living in different regions located on distinct latitudes.

Style APA, Harvard, Vancouver, ISO itp.

Jensen, J. W., and B. G. Fejer. "Longitudinal dependence of middle and low latitude zonal plasma drifts measured by DE-2." Annales Geophysicae 25, no. 12 (2007): 2551–59. http://dx.doi.org/10.5194/angeo-25-2551-2007.

Pełny tekst źródła

Streszczenie:

Abstract. We used ion drift observations from the DE-2 satellite to study for the first time the longitudinal variations of middle and low latitude F region zonal plasma drifts during quiet and disturbed conditions. The quiet-time middle latitude drifts are predominantly westward; the low latitude drifts are westward during the day and eastward at night. The daytime quiet-time drifts do not change much with longitude; the nighttime drifts have strong season dependent longitudinal variations. In the dusk-premidnight period, the equinoctial middle latitude westward drifts are smallest in the European sector and the low latitude eastward drifts are largest in the American-Pacific sector. The longitudinal variations of the late night-early morning drifts during June and December solstice are anti-correlated. During geomagnetically active times, there are large westward perturbation drifts in the late afternoon-early night sector at upper middle latitudes, and in the midnight sector at low latitudes. The largest westward disturbed drifts during equinox occur in European sector, and the smallest in the Pacific region. These results suggest that during equinox SAPS events occur most often at European longitudes. The low latitude perturbation drifts do not show significant longitudinal

Style APA, Harvard, Vancouver, ISO itp.

Stening, R. J. "Modelling the low latitude F region." Journal of Atmospheric and Terrestrial Physics 54, no. 11-12 (1992): 1387–412. http://dx.doi.org/10.1016/0021-9169(92)90147-d.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Qu, Tao, Lifeng Zhang, Yuan Wang, Xu Wang, and Jiping Guan. "Seasonal Variations in the Vertical Wavenumber Spectra of Stratospheric Gravity Waves in the Asian Monsoon Region Derived from COSMIC-2 Data." Remote Sensing 14, no. 24 (2022): 6336. http://dx.doi.org/10.3390/rs14246336.

Pełny tekst źródła

Streszczenie:

We used the Constellation Observing System for Meteorology, Ionosphere, and Climate-2 (COSMIC-2) dry temperature profile data from December 2019 to November 2021 to study the vertical wavenumber spectra of the potential energy of stratospheric gravity waves (GWs Ep) in the Asian monsoon region (15–45°N, 70–150°E). The GW Ep decreases with increasing vertical wavenumber, and the spectral slope varies with wavenumber. The spectral slope becomes smaller over a wavenumber range of 0.1–0.45 km−1, and larger from 0.45–1 km−1, with increasing wavenumber. The energy density distribution at middle and low latitudes shows seasonal variations. Over a wavenumber range of 0.05–0.5 km−1, the energy density in winter is higher at middle latitudes than at low latitudes, and the opposite is observed in summer over a wavenumber range from 0.1 to 1 km−1. Both the spectral amplitude and characteristic wavelength exhibit band-like patterns, and the large-value bands and their centers vary significantly with the season. In winter, the middle latitude spectral amplitude is larger than that at low latitudes, and the significant large-value band-like distribution is at 40°N. In summer, the distribution is opposite, with large-value band regions over the Bay of Bengal and Indo-China Peninsula. The large-value region of the middle latitude spectral amplitude corresponds to a longer characteristic wavelength, while the large-value region of the low latitude spectral amplitude corresponds to a shorter characteristic wavelength. There is also significant seasonal variation in the distribution of spectral slopes. Over a wavenumber range of 0.1 to 0.5 km−1, the slope is smaller at middle latitudes and larger at low latitudes in winter; the opposite is observed in summer. There is a significant annual cycle of spectral amplitude at middle and low latitudes, and a 4.8 month cycle at middle latitudes.

Style APA, Harvard, Vancouver, ISO itp.

Zhou, Yan, Yu-Yan Sara Zhao, Xiaoting Xu, and Yiran Wang. "Characteristics and Climatic Indications of Ice-Related Landforms at Low Latitudes (0°–±30°) on Mars." Remote Sensing 17, no. 11 (2025): 1939. https://doi.org/10.3390/rs17111939.

Pełny tekst źródła

Streszczenie:

The deposition and evolution of ice-rich materials on Martian surfaces offer valuable insights into climatic evolution and the potential driving forces behind global climate change. Substantial evidence indicates that the mid-latitudes of Mars played a crucial role in the formation and development of glacial and periglacial landforms during the Amazonian period. However, few studies have comprehensively examined ice-related landforms in the low-latitude region of Mars. Whether extensive glacial activity has occurred in the equatorial region of Mars and whether there are any potential geological records of such activities remain unclear. In this study, we analyzed remote sensing data from the Martian equatorial region (0°–±30°) and identified existing glacial/periglacial features, as well as remnant landforms of past glaciation. Our findings reveal that glaciation at low latitudes is more widespread than previously thought, with ice-related remnants extending as far equatorward as 13°N in the northern hemisphere and 19°S in the southern hemisphere, highlighting a broader latitudinal range for ice-related landforms. These landforms span multiple episodes of Martian geological history, supporting the hypothesis on the occurrence of repeated glaciation and various high-obliquity events. Evidence of dynamic interactions between ice deposition and sublimation in low-latitude regions demonstrates substantial ice loss over time, leaving ice-related remnants that provide valuable insights into Mars’ climatic evolution. Based on volumetric estimates of the concentric crater fill (CCF), the low-latitude regions of Mars may contain up to 1.05 × 103 km3 of ice. This corresponds to a global equivalent ice layer thickness ranging from 21.7 mm (assuming a pore ice with 30% ice content) to 65.1 mm (assuming glacial ice with 90% ice content), suggesting a potentially greater low-latitude ice reservoir than previously recognized.

Style APA, Harvard, Vancouver, ISO itp.

Zhou, Yun-Liang, Li Wang, Chao Xiong, Hermann Lühr, and Shu-Ying Ma. "The solar activity dependence of nonmigrating tides in electron density at low and middle latitudes observed by CHAMP and GRACE." Annales Geophysicae 34, no. 4 (2016): 463–72. http://dx.doi.org/10.5194/angeo-34-463-2016.

Pełny tekst źródła

Streszczenie:

Abstract. In this paper we use more than a decade of in situ electron density observations from CHAMP and GRACE satellites to investigate the solar activity dependence of nonmigrating tides at both low and middle latitudes. The results indicate that the longitudinal patterns of F region electron density vary with season and latitude, which are exhibiting a wavenumber 4 (WN4) pattern around September equinox at low latitudes and WN1/WN2 patterns during local summer at the southern/northern middle latitudes. These wave patterns in the F region ionosphere can clearly be seen during both solar maximum and minimum years. At low latitudes the absolute amplitudes of DE3 (contributing to the WN4 pattern) are found to be highly related to the solar activity, showing larger amplitudes during solar maximum years. Similarly a solar activity dependence can also be found for the absolute amplitudes of D0, DW2 and DE1 (contributing to the WN1 and WN2 pattern) at middle latitudes. The relative amplitudes (normalized by the zonal mean) of these nonmigrating tides at both low and middle altitudes show little dependence on solar activity. We further found a clear modulation by the quasi-biennial oscillation (QBO) of the relative DE3 amplitudes in both satellite observations, which is consistent with the QBO dependence as reported for the E region temperatures and zonal wind. It also supports the strong coupling of the low-latitude nonmigrating tidal activity between the E and F regions. However, the QBO dependence cannot be found for the relative amplitudes of the nonmigrating tides at middle latitudes, which implies that these tides are generated in situ at F region altitudes.

Style APA, Harvard, Vancouver, ISO itp.

Abe, Oladipo Emmanuel, Xurxo Otero Villamide, Claudia Paparini, Rodrigue Herbert Ngaya, Sandro M. Radicella, and Bruno Nava. "Signature of ionospheric irregularities under different geophysical conditions on SBAS performance in the western African low-latitude region." Annales Geophysicae 35, no. 1 (2017): 1–9. http://dx.doi.org/10.5194/angeo-35-1-2017.

Pełny tekst źródła

Streszczenie:

Abstract. Rate of change of TEC (ROT) and its index (ROTI) are considered a good proxy to characterize the occurrence of ionospheric plasma irregularities like those observed after sunset at low latitudes. SBASs (satellite-based augmentation systems) are civil aviation systems that provide wide-area or regional improvement to single-frequency satellite navigation using GNSS (Global Navigation Satellite System) constellations. Plasma irregularities in the path of the GNSS signal after sunset cause severe phase fluctuations and loss of locks of the signals in GNSS receiver at low-latitude regions. ROTI is used in this paper to characterize plasma density ionospheric irregularities in central–western Africa under nominal and disturbed conditions and identified some days of irregularity inhibition. A specific low-latitude algorithm is used to emulate potential possible SBAS message using real GNSS data in the western African low-latitude region. The performance of a possible SBAS operation in the region under different ionospheric conditions is analysed. These conditions include effects of geomagnetic disturbed periods when SBAS performance appears to be enhanced due to ionospheric irregularity inhibition. The results of this paper could contribute to a feasibility assessment of a European Geostationary Navigation Overlay System-based SBAS in the sub-Saharan African region.

Style APA, Harvard, Vancouver, ISO itp.

Dabas, R. S., R. M. Das, V. K. Vohra, and C. V. Devasia. "Space weather impact on the equatorial and low latitude F-region ionosphere over India." Annales Geophysicae 24, no. 1 (2006): 97–105. http://dx.doi.org/10.5194/angeo-24-97-2006.

Pełny tekst źródła

Streszczenie:

Abstract. For a detailed study of the space weather impact on the equatorial and low latitude F-region, the ionospheric response features are analysed during the periods of three recent and most severe magnetic storm events of the present solar cycle which occurred in October and November 2003, and November 2004. The F-layer base height (h'F), peak height (hmF2) and critical frequency (foF2) data, from Trivandrum, an equatorial station and Delhi, a low latitude location, are examined during the three magnetic storm periods. The results of the analysis clearly shows that the height of the F-region (both h'F and hmF2), at the equator and low latitude, simultaneously increases by 200 to 300 km, in association with maximum negative excursion of Dst values around the midnight hours with a large depletion of ionization over the equator, which is followed by an ionization enhancement at low latitude during the recovery phase of the storm. At Delhi, fast variations up to 200 m/s are also observed in the F-layer vertical upward/downward velocity, calculated using Doppler shifts, associated with the maximum negative excursion of Dst. This shows that during magnetic disturbances, the equatorial ionization anomaly (EIA) expands to a much wider latitude than the normal fountain driven by the E/F-layer dynamo electric fields. It is also observed that during the main phase of the storm, at low latitude there is generally an enhancement of F-region ionization with an increase in h'F/hmF2 but in the equatorial region, the ionization collapses with a decrease in h'F/hmF2, especially after sunset hours. In addition, at the equator the normal pre-sunset hours' enhancement in h'F is considerably suppressed during storm periods. This might be due to changes in magnitude and direction of the zonal electric field affecting the upward E×B drift and hence the plasma distribution in the form of a decrease in electron density in the equatorial region and an increase in the low latitude region. In association with disturbance electric fields, the enhanced storm-induced equatorward meridional winds in the thermosphere can also further amplify the F-layer height rise at low latitudes during the post-midnight hours, as observed in two of the storm periods.

Style APA, Harvard, Vancouver, ISO itp.

Wang, Yang, Zuhong Fan, Tian Tian, Ying Deng, and Hong Zhao. "Leaf–Soil Carbon, Nitrogen, and Phosphorus Ecological Stoichiometry and Adaptation in Karst Plant Communities." Sustainability 17, no. 13 (2025): 5790. https://doi.org/10.3390/su17135790.

Pełny tekst źródła

Streszczenie:

In order to elucidate the factors regulating nutrient dynamics in plant–soil interactions across various latitudes within the karst climax community, this study focused on the karst forest climax community in Guizhou Province, Southwest China. We analyzed and compared the differences in carbon, nitrogen, and phosphorus content, as well as stoichiometry, in plant leaves and soils under various growing conditions. Additionally, redundancy analyses were conducted to investigate the stoichiometric correlations between plants and soil. The research findings indicate the following: (1) Leaf carbon content (LCC) and the carbon-to-nitrogen ratio (LCN) exhibit significant differences across various latitudes, with the lowest values observed in high-latitude regions. (2) Soil organic carbon (SOC) and the carbon-to-nitrogen ratio (SCN) also show significant variations across latitudes, with the lowest concentrations found in high-latitude regions and the highest in low-latitude regions. (3) The variability in leaf nutrient element ratios among karst region climax communities is greatest in low-latitude areas. This study found that the carbon content (LCC), nitrogen content (LNC), and carbon-to-nitrogen ratio (LCN) of leaves in karst climax community plants decrease as latitude increases. This suggests that plants regulate the nutrient utilization efficiency of carbon content (LCC), nitrogen content (LNC), and phosphorus content (LPC) in their leaves to maintain the nutrients necessary for their growth and development along the latitudinal gradient. The sensitivity of soil organic carbon (SOC), carbon-to-nitrogen (SCN), and carbon-to-phosphorus (SCP) ratios to latitudinal changes were particularly pronounced in the karst climax community. Additionally, plant leaf stoichiometry was significantly influenced by soil phosphorus content (SPC) in mid- and high-latitude regions, while factors other than soil nitrogen content (SNC) had a more substantial impact on plant leaf stoichiometry in low-latitude areas. The findings of this study are highly significant for guiding nutrient management in karst forest ecosystems and for the restoration of degraded karst forest vegetation.

Style APA, Harvard, Vancouver, ISO itp.

Morita, Takeshi, and Krzysztof Błażejczyk. "Seasonal Variations in Melatonin Secretory Rhythms in High-, Middle-, and Low-Latitude Regions." Przegląd Geograficzny 95, no. 3 (2023): 225–35. http://dx.doi.org/10.7163/przg.2023.3.1.

Pełny tekst źródła

Streszczenie:

This study aims to measure the daily melatonin secretory rhythms of people living in high-, mid-, and low-latitude regions characterised by different day lengths and global solar-radiation conditions. In Poland, a high-latitude region, the amount of melatonin secretion is greater, with secretion occurring earlier (exemplifying phase advance). On the other hand, in Vietnam, a low-latitude region, the level is lower and occurs later (phase delay). Japan, a mid-latitude region, shows behaviour intermediate between these two. Melatonin secretory rhythm in Vietnam is closely related to Day length and Global Solar Radiation, though no such relationship is observed in Poland or Japan, making it necessary for other factors to be considered. The results of this study have important implications considering the impacts of light pollution and lighting-related conditions of modern life.

Style APA, Harvard, Vancouver, ISO itp.

Więcej źródeł

Rozprawy doktorskie na temat "Low latitude region"

Dubazane, Makhosonke Berthwell. "Modelling Ionospheric vertical drifts over the African low latitude region." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/63356.

Pełny tekst źródła

Streszczenie:

Low/equatorial latitudes vertical plasma drifts and electric fields govern the formation and changes of ionospheric density structures which affect space-based systems such as communications, navigation and positioning. Dynamical and electrodynamical processes play important roles in plasma distribution at different altitudes. Because of the high variability of E × B drift in low latitude regions, coupled with various processes that sometimes originate from high latitudes especially during geomagnetic storm conditions, it is challenging to develop accurate vertical drift models. This is despite the fact that there are very few instruments dedicated to provide electric field and hence E × B drift data in low/equatorial latitude regions. To this effect, there exists no ground-based instrument for direct measurements of E×B drift data in the African sector. This study presents the first time investigation aimed at modelling the long-term variability of low latitude vertical E × B drift over the African sector using a combination of Communication and Navigation Outage Forecasting Systems (C/NOFS) and ground-based magnetometer observations/measurements during 2008-2013. Because the approach is based on the estimation of equatorial electrojet from ground-based magnetometer observations, the developed models are only valid for local daytime. Three modelling techniques have been considered. The application of Empirical Orthogonal Functions and partial least squares has been performed on vertical E × B drift modelling for the first time. The artificial neural networks that have the advantage of learning underlying changes between a set of inputs and known output were also used in vertical E × B drift modelling. Due to lack of E×B drift data over the African sector, the developed models were validated using satellite data and the climatological Scherliess-Fejer model incorporated within the International Reference Ionosphere model. Maximum correlation coefficient of ∼ 0.8 was achieved when validating the developed models with C/NOFS E × B drift observations that were not used in any model development. For most of the time, the climatological model overestimates the local daytime vertical E × B drift velocities. The methods and approach presented in this study provide a background for constructing vertical E ×B drift databases in longitude sectors that do not have radar instrumentation. This will in turn make it possible to study day-to-day variability of vertical E×B drift and hopefully lead to the development of regional and global models that will incorporate local time information in different longitude sectors.

Style APA, Harvard, Vancouver, ISO itp.

Gurram, Padma. "Quiet and disturbed time dynamics of low latitude F-region." Thesis, IIG, 2019. http://library.iigm.res.in:8080/xmlui/handle/123456789/15.

Pełny tekst źródła

Streszczenie:

Preface : The ionosphere is partially ionized part of the atmosphere that extends from 50km to 800 kms. The dynamics of the equatorial ionosphere is different as compared to mid/high latitude of ionosphere, due to the horizontal magnetic field present at the equator. This horizontal magnetic field along with east/ west electric field creates the peculiar phenomena. Equatorial spread - F (ESF) irregularities is one of the phenomena. These ESF irregularities (spans scale size of few cms to hundreds of kilometer) are electron density irregularities that are generated in the equatorial F-region in the post sunset hours, through the nonlinear evolution of Rayleigh-Taylor plasma instability. This is a nighttime equatorial F-region phenomenon. The study of ESF irregularities is important as its presence in the ionosphere can severely affect trans-ionospheric radio communications. The fast moving small scale ESF irregularities causes more degradation to the incoming radio signal. Thus, the knowledge about spatial scales and drift of ESF irregularities are important. Equatorial plasma bubbles (EPBs) and dynamics of associated ESF irregularities of different spatial scales are being studied using different techniques for the last few decades. But its study still forms an important element of ionospheric research due to the uncertainties involved in the day-to day prediction of occurrence of these EPBs. For quiet and disturbed days, we are not only interested in the occurrence EPBs but we are also keen to know the level of degradation caused to incoming radio signal by these freshly generated EPBs, which is closely related to the strength and spatial scales of the ESF irregularities. The evolution and structuring of EPBs can be considerably different on quiet and disturbed days. However, we have little knowledge about the structuring and evolution of freshly generated ESF irregularities. When we think of freshly generated EPBs one should have some method or technique to confirm that the observed signatures are associated with ESF irregularities formed locally. In present work we have used long-term observations of amplitude scintillation on 251 MHz recorded by spaced receiver at Indian dip equatorial station Tirunelveli. In addition we used ionosonde data from close by station Trivandrum and some ionospheric models. As we are using 251 MHz signal we get information about intermediate scale (100m - few kms) irregularities. By using spaced receiver analysis technique, we get strength of scintillations (S4), drift speed of ground scintillation pattern (V0), the random velocity of the irregularities of ground scintillation pattern (VC) and maximum cross - correlation between intensity variations recorded by two receivers (CI ). By using the CI parameter one can identify the freshly generated (or) drifted ESF irregularities. Here, our focus mainly on the freshly generated ESF (F-ESF) irregularities during quiet and disturbed days. We have investigated seasonal and solar flux dependence of occurrence of freshly generated ESF irregularities during both quiet and disturbed days in early and later phases of their evolution and the degradation caused by these irregularities to the incoming radio signal by taking S4 index as a proxy. F-ESF associated with geomagnetic activity causes more degradation to incoming radio signal. In order to understand moderate - strong scintillations associated with F-ESF during geomagnetic activity, we have used the theoretical model given by the Engavale & Bhattacharyya, 2005. This theoretical model indicates, ESF irregularities placed at higher altitude produce higher S4 when power spectral index and density fluctuations are high. In addition, the duration of active phase of freshly generated ESF irregularities are estimated and its variation with the solar flux and the geomagnetic activity have been studied. And also we have checked the effect of the magnetic activity on active phase duration of F-ESF. As a case study, the geomagnetic storm of 17 March 2015 and associated effects observed at low latitude F-region are examined in detail. We also report the difference in the structuring of ESF irregularities due to presence of earthquake linked electric fields in the equatorial F-region.

Style APA, Harvard, Vancouver, ISO itp.

Singh, Dupinder. "Study of ionospheric variabilities in the equatorial and low latitude region." Thesis, IIG, 2010. http://localhost:8080/xmlui/handle/123456789/1591.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Maurya, Ajeet Kumar. "ELF/VLF wave studies of ionosphere and magnetosphere electromagnetic phenomenon in low latitude region." Thesis, Indian Institute of Geomagnetism, Mumbai, 2013. http://localhost:8080/xmlui/handle/123456789/212.

Pełny tekst źródła

Streszczenie:

A thesis submitted to the university of Mumbai for the Ph. D.(Science) degree in Physics under the guidance of Dr. Rajesh Singh. The present study provides the first detail description of morphological features of tweek radio atmospherics recorded at low latitude (L<1.3) Indian stations and their application in monitoring D-region or lower ionosphere during solar quiet (transition period of solar cycle 23 and 24) and eclipse conditions. This dissertation is also focused on long standing problem of propagation mechanism of low latitude whistlers. This work helps in advancing our knowledge of tweek radio atmospheric and low latitude whistlers. A brief summary of important and new finding are given below: *Seasonal variation of tweek radio atmospheric recorded at Allahabad shows that tweeks occur maximum (~63%) during summer season and have approximately same occurrence (~18%) during winter and equinox seasons. The trend of occurrence of tweeks during different seasons is somewhat similar with the number of lightnings detected by World Wide Lightning Location Network (WWLLN) in the Indian and Asia-Oceania regions. This indicates that the lightning is a necessary but not sufficient condition for tweek occurrence; rather it also depends on conductivity of boundaries of EIWG, collision frequency, local time etc. * The occurrence of tweeks with different mode varies with time of local night and seasons. The tweek with mode n=1 and 2, have maximum occurrence rate of 71%, followed by tweeks with only n =1 (~25%) and tweeks with n =1-3 (~3.5%). Tweeks having higher modes (n = 4 -6) occurred rarely throughout the year with no fifth and sixth harmonic tweek (having n =1-6) observed during the winter season. * Observations suggest that about 30-40% obscuration of solar disc can lead to the tweeks occurrence which otherwise occur only in the nighttime from 18:00 - 5:30 hrs LT. Tweek observed during eclipse time are less intense, less clear, short duration and have lower modes (n=3 or lower) compared to tweek observed in the normal nighttime. * The average distance travelled by most of tweeks varies in the range ~2000-8000 km. The WWLLN detected lightning locations within 2000-8000 km areas indicate that about 94% of tweeks observed at Allahabad were associated with lightnings in the Asia-Oceania region, which is one of the three regions of major lightning activity in the world. * The path integrated reflection height (h) of nighttime D-region ionosphere calculated by using first order cutoff frequency of tweeks varies in the range 87-95 km at both the stations. The path integrated electron density (ne) estimated using first order cutoff frequency of tweeks varies as 21-24.5 cm-3 at Allahabad and 21.5-24 cm-3 at Nainital. * The nocturnal and seasonal variability in the h′ and at Allahabad and Nainital shows that the nighttime D-region is far from static. The average values of h′ and β for both the stations are almost same (86.1-85.6 km, and 0.51-0.54 km-1) during winter and equinox seasons. The h′ is lower by 2-3 km and is higher by 0.07-0.09 km-1during summer as compared to winter and equinox seasons. * The day-to-day variability in h is about 8-9 km with temporal variability of 1-2 km in any one hour duration. The day-to-day variability in h′ is about 4-5 km and in β it is about 0.1-0.25 km-1. The ne obtained using tweek method shows lower values than those obtained using IRI-2007 model and higher during winter and equinox and lower during summer when compared with Rocket data, however, the trend of ne variation in the altitude range of 85-98 km is almost the same. The ne obtained using tweek method shows seasonal variation with higher values during summer as compared to winter and equinox seasons. * This study presents the first cases of low latitude ground whistlers unambiguously linked with their causative lightning discharges. The lightning discharges are found to be located between 200 and 450 km to the conjugate location of the receiver, providing direct evidence of inter-hemispheric propagation at low latitudes which may possibly be along low latitude ducts and open a new window into low latitude ionospheric diagnostics.

Style APA, Harvard, Vancouver, ISO itp.

Venkatesham, K. "Near-earth and space weather studies by very low frequency (VLF) waves in low latitude region." Thesis, IIG, 2010. http://localhost:8080/xmlui/handle/123456789/1590.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Jensen, John W. "Climatology of Middle and Low-Latitude F-Region Plasma Drifts from Satellite Measurements." DigitalCommons@USU, 2007. https://digitalcommons.usu.edu/etd/7444.

Pełny tekst źródła

Streszczenie:

We used ion drift observations from the DE-2 satellite to study for the first time the longitudinal variations of middle and low latitude F-region zonal plasma drifts during quiet and disturbed conditions. The daytime quiet-time drifts do not change much with longitude. In the dusk-premidnight period, the equinoctial middle latitude westward drifts are smallest in the European sector, and the low latitude eastward drifts are largest in the American-Pacific sector. The longitudinal variations of the late night-early morning drifts during June and December solstice are anti-correlated. During geomagnetically active time s, there are large westward perturbation drifts in the late afternoon-early night sector at upper middle latitudes and in the midnight sector at low latitudes. The largest westward disturbed drifts during equinox occur in the European sector and the smallest in the Pacific region. These results suggest that during equinox, Subauroral Polarization Streams (SAPS) events occur most often at European longitudes. The low latitude perturbation drifts do not show significant longitudinal dependence. We have used five years of measurements on board the ROCSA T-1 satellite to develop a detailed local-time, season, and longitude-dependent quiet-time global empirical model for equatorial F-region vertical plasma drifts. We show that the longitudinal dependence of the daytime and nighttime vertical drifts is much stronger than reported earlier, especially during December and June solstice. The late night downward drift velocities are larger in the eastern than in the western hemisphere at all seasons, the morning and afternoon December solstice drifts have significantly different longitudinal dependence, and the daytime upward drifts have strong wavenumber-four signatures during equinox and June solstice. The largest evening upward drifts occur during equinox and December solstice near the American sector. The longitudinal variations of the evening prereversal velocity peaks during December and June solstice are anti-correlated, which further indicates the importance of conductivity effects on the electrodynamics of the equatorial ionosphere. We have shown that disturbance dynamo largely does not affect daytime drifts. The upward perturbations during the nighttime are largely season independent, but near the prereversal enhancement, the downward perturbation drifts are largest during equinox and smallest during December.

Style APA, Harvard, Vancouver, ISO itp.

Kakad, Bharati Amar. "Study of irregularities and dynamics of the low latitude ionosphere." Thesis, IIG, 2007. http://localhost:8080/xmlui/handle/123456789/1577.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Nayak, Chinmaya Kumar. "Study of the variability of equatorial and low latitude ionosphere in the Indian region using radio waves." Thesis, Indian Institute of Geomagnetism, Mumbai, 2013. http://localhost:8080/xmlui/handle/123456789/215.

Pełny tekst źródła

Streszczenie:

A thesis submitted to the University of Mumbai for the Ph.D (Science) Degree in Physics under the guidance of Dr. Satyavir Singh. This thesis addresses three different aspects of the equatorial ionosphere during a period of extended solar minimum (2007-2009). Chapter I gives a detailed introduction to various features of the equatorial ionosphere while the chapters II, III, and IV discusses the work done during the course of this thesis. In this chapter, the summary and conclusions of the research work presented in the thesis have been discussed, with the scope for the future investigations.The occurrence of F3-layer over the equatorial station Tirunelveli during the pro longed lower solar activity period 2007-2009 is discussed in detail in chapter II. A clear diurnal and seasonal dependence of the occurrence of F3-layer has been estab lished in this study. Earlier studies show that the occurrence of F3-layer is favored during local summer months (May, June, July) as compared to winter and equinoxes. The results from this study indicate that the F3-layer is equally probable during equinoctial months (March, April, September and October) as compared to summer months (May, June and July). However it is least probable during local winter months ( November, December, January, February).The present understanding suggests that the formation of F3-layer is due to the com bined action of vertically upward E×B drift and the equatorward neutral wind [Balan et al.,1998]. The pre noon period F3-layer observations support this theory. In most of the cases, the F3-layer is found to occur at a time when the EEJ attains its peak of the day. This represents the fact that the zonal electric field is eastward and hence the E × B is vertically upward and increasing so that the plasma moves upward fast enough to create a new layer at the lower heights resulting in three different layers; F1-. F2- and F3-layer. A clear dependence of F3-layer occurrence over the variation of EEJ has been discussed in chapter II. The formation of F3-layer is mainly attributed to the vertically upward E × B drift, which moves the F-layer plasma upwards in altitude. However, our study brings out the afternoon time occurrence of F3 layer, which may be associated with downward movement of F-layer plasma. This possibility gets strengthened due to the fact that all such happen during the presence of a counterelectrojet (CEEJ) , which can be used as a proxy for zonal electric field. Some such cases have been discussed in chap ter II. Modeling efforts are necessary to understand the physical process linked with these afternoon time occurrence of F3. Similarly, the absence of post sunset F3-layer at Tirunelveli is puzzling as this has been a common feature at other longitudes. A separate study may be undertaken to establish the reason behind this nonoccurrence.

Style APA, Harvard, Vancouver, ISO itp.

Maruyama, Takashi. "Experimental and Theoretical study of Ionospheric Irregularities in the F Region at Low-Latitudes." Kyoto University, 1992. http://hdl.handle.net/2433/168763.

Pełny tekst źródła

Streszczenie:

本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである Kyoto University (京都大学) 0048 新制・論文博士 博士(工学) 乙第7875号 論工博第2585号 新制||工||878(附属図書館) UT51-92-K375 (主査)教授木村磐根, 教授加藤進, 教授深尾昌一郎 学位規則第4条第2項該当

Style APA, Harvard, Vancouver, ISO itp.

Narayanan, V. Lakshmi. "Study of dynamical coupling of the mesosphere-lower thermosphere-ionosphere region at low latitudes." Thesis, Indian Institute of Geomagnetism, Mumbai, 2011. http://localhost:8080/xmlui/handle/123456789/223.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Książki na temat "Low latitude region"

Zhang, Zhihua, Nabil Khélifi, Abdelkader Mezghani, and Essam Heggy, eds. Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01599-2.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Symposium, COSPAR International Scientific. Low and equatorial latitudes in the International Reference Ionosphere (IRI): Proceedings of the COSPAR International Scientific Symposium held in New Delhi, India, 9-13 January 1995 / edited by K. Rawer ... [et al.]. Published for the Committee on Space Research [by] Pergamon, 1996.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Yang, Kun. Observed Regional Climate Change in Tibet over the Last Decades. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228620.013.587.

Pełny tekst źródła

Streszczenie:

The Tibetan Plateau (TP) is subjected to strong interactions among the atmosphere, hydrosphere, cryosphere, and biosphere. The Plateau exerts huge thermal forcing on the mid-troposphere over the mid-latitude of the Northern Hemisphere during spring and summer. This region also contains the headwaters of major rivers in Asia and provides a large portion of the water resources used for economic activities in adjacent regions. Since the beginning of the 1980s, the TP has undergone evident climate changes, with overall surface air warming and moistening, solar dimming, and decrease in wind speed. Surface warming, which depends on elevation and its horizontal pattern (warming in most of the TP but cooling in the westernmost TP), was consistent with glacial changes. Accompanying the warming was air moistening, with a sudden increase in precipitable water in 1998. Both triggered more deep clouds, which resulted in solar dimming. Surface wind speed declined from the 1970s and started to recover in 2002, as a result of atmospheric circulation adjustment caused by the differential surface warming between Asian high latitudes and low latitudes.The climate changes over the TP have changed energy and water cycles and has thus reshaped the local environment. Thermal forcing over the TP has weakened. The warming and decrease in wind speed lowered the Bowen ratio and has led to less surface sensible heating. Atmospheric radiative cooling has been enhanced, mainly through outgoing longwave emission from the warming planetary system and slightly enhanced solar radiation reflection. The trend in both energy terms has contributed to the weakening of thermal forcing over the Plateau. The water cycle has been significantly altered by the climate changes. The monsoon-impacted region (i.e., the southern and eastern regions of the TP) has received less precipitation, more evaporation, less soil moisture and less runoff, which has resulted in the general shrinkage of lakes and pools in this region, although glacier melt has increased. The region dominated by westerlies (i.e., central, northern and western regions of the TP) received more precipitation, more evaporation, more soil moisture and more runoff, which together with more glacier melt resulted in the general expansion of lakes in this region. The overall wetting in the TP is due to both the warmer and moister conditions at the surface, which increased convective available potential energy and may eventually depend on decadal variability of atmospheric circulations such as Atlantic Multi-decadal Oscillation and an intensified Siberian High. The drying process in the southern region is perhaps related to the expansion of Hadley circulation. All these processes have not been well understood.

Style APA, Harvard, Vancouver, ISO itp.

Mitra, A. P., Kanti K. Mahajan, D. Bilitza, K. K. Mahajan, A. P. Mitra, and K. Rawer. Low and Equatorial Latitudes in the International Reference Ionosphere (IRI). Elsevier Science Pub Co, 1996.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Crichton, Michael. Pirate Latitudes Low Price CD. HarperAudio, 2010.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Eileen, Denza. Diplomatic Law. Oxford University Press, 2016. http://dx.doi.org/10.1093/law/9780198703969.001.0001.

Pełny tekst źródła

Streszczenie:

Diplomatic Law was first published in 1976. The book places each provision of the Convention in its historical context; provides commentary on the application of the Convention by the UK, the US, and other States; and thoroughly examines topical problems in the field including the abuse of diplomatic immunity and terrorist violence. This updated edition also highlights important new trends in the application of the Convention regime. It explores the interaction between State and diplomatic immunity (as shown in the Pinochet case), examines methods of establishing and conducting diplomatic relations under conditions of physical danger, and looks at increased evidence of disregard for the rules of secrecy in diplomatic communications. The book also explores the greater latitude for diplomats to ‘interfere’ in the internal affairs of the receiving State in the interest of protecting human rights and evaluates the impact of adoption of the UN Convention on Jurisdictional Immunities of States and their Property.

Style APA, Harvard, Vancouver, ISO itp.

Zhang, Zhihua, Essam Heggy, Nabil Khélifi, and Abdelkader Mezghani. Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions: Proceedings of the 1st Springer Conference ... in Science, Technology & Innovation). Springer, 2019.

Znajdź pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Benestad, Rasmus. Climate in the Barents Region. Oxford University Press, 2018. http://dx.doi.org/10.1093/acrefore/9780190228620.013.655.

Pełny tekst źródła

Streszczenie:

The Barents Sea is a region of the Arctic Ocean named after one of its first known explorers (1594–1597), Willem Barentsz from the Netherlands, although there are accounts of earlier explorations: the Norwegian seafarer Ottar rounded the northern tip of Europe and explored the Barents and White Seas between 870 and 890 ce, a journey followed by a number of Norsemen; Pomors hunted seals and walruses in the region; and Novgorodian merchants engaged in the fur trade. These seafarers were probably the first to accumulate knowledge about the nature of sea ice in the Barents region; however, scientific expeditions and the exploration of the climate of the region had to wait until the invention and employment of scientific instruments such as the thermometer and barometer. Most of the early exploration involved mapping the land and the sea ice and making geographical observations. There were also many unsuccessful attempts to use the Northeast Passage to reach the Bering Strait. The first scientific expeditions involved F. P. Litke (1821±1824), P. K. Pakhtusov (1834±1835), A. K. Tsivol’ka (1837±1839), and Henrik Mohn (1876–1878), who recorded oceanographic, ice, and meteorological conditions.The scientific study of the Barents region and its climate has been spearheaded by a number of campaigns. There were four generations of the International Polar Year (IPY): 1882–1883, 1932–1933, 1957–1958, and 2007–2008. A British polar campaign was launched in July 1945 with Antarctic operations administered by the Colonial Office, renamed as the Falkland Islands Dependencies Survey (FIDS); it included a scientific bureau by 1950. It was rebranded as the British Antarctic Survey (BAS) in 1962 (British Antarctic Survey History leaflet). While BAS had its initial emphasis on the Antarctic, it has also been involved in science projects in the Barents region. The most dedicated mission to the Arctic and the Barents region has been the Arctic Monitoring and Assessment Programme (AMAP), which has commissioned a series of reports on the Arctic climate: the Arctic Climate Impact Assessment (ACIA) report, the Snow Water Ice and Permafrost in the Arctic (SWIPA) report, and the Adaptive Actions in a Changing Arctic (AACA) report.The climate of the Barents Sea is strongly influenced by the warm waters from the Norwegian current bringing heat from the subtropical North Atlantic. The region is 10°C–15°C warmer than the average temperature on the same latitude, and a large part of the Barents Sea is open water even in winter. It is roughly bounded by the Svalbard archipelago, northern Fennoscandia, the Kanin Peninsula, Kolguyev Island, Novaya Zemlya, and Franz Josef Land, and is a shallow ocean basin which constrains physical processes such as currents and convection. To the west, the Greenland Sea forms a buffer region with some of the strongest temperature gradients on earth between Iceland and Greenland. The combination of a strong temperature gradient and westerlies influences air pressure, wind patterns, and storm tracks. The strong temperature contrast between sea ice and open water in the northern part sets the stage for polar lows, as well as heat and moisture exchange between ocean and atmosphere. Glaciers on the Arctic islands generate icebergs, which may drift in the Barents Sea subject to wind and ocean currents.The land encircling the Barents Sea includes regions with permafrost and tundra. Precipitation comes mainly from synoptic storms and weather fronts; it falls as snow in the winter and rain in the summer. The land area is snow-covered in winter, and rivers in the region drain the rainwater and meltwater into the Barents Sea. Pronounced natural variations in the seasonal weather statistics can be linked to variations in the polar jet stream and Rossby waves, which result in a clustering of storm activity, blocking high-pressure systems. The Barents region is subject to rapid climate change due to a “polar amplification,” and observations from Svalbard suggest that the past warming trend ranks among the strongest recorded on earth. The regional change is reinforced by a number of feedback effects, such as receding sea-ice cover and influx of mild moist air from the south.

Style APA, Harvard, Vancouver, ISO itp.

Maglioni, Carolina. Expertos, actores locales estatales y hogares titulares. Teseo, 2021. http://dx.doi.org/10.55778/ts878809861.

Pełny tekst źródła

Streszczenie:

Este libro nos aproxima a una parte de la historia reciente de los programas sociales de transferencia monetaria, es decir, aquellas políticas sociales centradas en entregas de dinero en efectivo dirigidas a los hogares de los sectores más vulnerables que han modificado hacia los albores del siglo XXI la agenda de protección y provisión de bienestar.La propuesta aquí presente implica, por un lado, una reconstrucción histórica y contextualizada de diferentes intervenciones monetarias de nuestra región y otras latitudes. Por otro lado, el objetivo es avanzar en la construcción de un enfoque relacional sobre los programas de transferencia monetaria: una perspectiva que nos permita visibilizar cómo estas entregas de dinero impartidas por el Estado se han convertido en iniciativas monetarias con múltiples formas y funciones, capaces de conectar actores sociales y saberes plurales en las nuevas formas de provisión de bienestar.

Style APA, Harvard, Vancouver, ISO itp.

Fábregas Puig, Andrés, Dolores Camacho Velázquez, Arturo Lomelí González, et al. ¿Fronteras marginales? Vida cotidiana y problemáticas actuales en la franja fronteriza Chiapas-Guatemala. Universidad Nacional Autónoma de México, Centro de Investigaciones Multidisciplinarias sobre Chiapas y la Frontera Sur, 2021. http://dx.doi.org/10.22201/cimsur.9786073050920p.2021.

Pełny tekst źródła

Streszczenie:

A lo largo de los trabajos expuestos en este libro se aprecia la diversidad de maneras en que se pueden observar y desentrañar las relaciones fronterizas en los límites de dos Estados nacionales. Como los autores señalan, todo depende de qué se quiere ver y señalar. El libro es el resultado final de un proyecto de investigación colectivo y multidisciplinario; los trabajos están integrados por el eje conductor de la vida cotidiana en la franja fronteriza Chiapas-Guatemala y cómo se percibe la idea de esta entre sus habitantes. Tales preocupaciones tratan de ser expuestas y analizadas en cada uno de los capítulos. La frontera sur ha sido tema de investigaciones desde las ciencias sociales, pero en los últimos años el interés por el territorio fronterizo se ha incrementado y esto se debe a la importancia geopolítica que ha cobrado. Esta frontera es la entrada hacia Centroamérica, región de indudable interés económico y político de las potencias internacionales. También es la puerta de una cada vez mayor cantidad de personas centroamericanas y de otras latitudes que intentan llegar hacia los Estados Unidos. Un dato que abona interés al tema es que hasta hace dos siglos Chiapas era parte de Guatemala. Esta situación tiene diversas formas de funcionar a lo largo del territorio fronterizo. Hay espacios en los que prácticamente no es perceptible dónde termina un país y dónde empieza el otro y hay tramos en lo que está claramente marcada la división por la presencia del Estado nacional a través de sus instituciones. Los trabajos contenidos en este libro desde las diversas temáticas abordadas proporcionan una imagen de la vida en la frontera en un momento específico en que fue recorrida, pero también interpretan las significaciones que tiene la frontera para las múltiples relaciones sociales y comerciales que se desarrollan en estos territorios, es decir, la complejidad fronteriza.

Style APA, Harvard, Vancouver, ISO itp.

Więcej źródeł

Części książek na temat "Low latitude region"

Watanabe, Shigeto, and Tsutomu Kondo. "Ionosphere–Thermosphere Coupling in the Low-Latitude Region." In Aeronomy of the Earth's Atmosphere and Ionosphere. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0326-1_28.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Bromage, B. J. J., D. Alexander, A. Breen, et al. "Structure of a Large Low-Latitude Coronal Hole." In Physics of the Solar Corona and Transition Region. Springer Netherlands, 2001. http://dx.doi.org/10.1007/978-94-010-0860-0_12.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Maute, Astrid, and Arthur D. Richmond. "F $F$ -Region Dynamo Simulations at Low and Mid-Latitude." In Earth's Magnetic Field. Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1225-3_16.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Kavitha, D., P. Naveen Kumar, and K. Praveena. "Comparison of VTEC Due to IRI-2016 Model and IRNSS over Low Latitude Region." In Learning and Analytics in Intelligent Systems. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24318-0_39.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Dawelbeit, Ahmed, Etienne Jaillard, and Ali Eisawi. "Paleoclimate Evolution of the Kordofan Region (Sudan), During the Last 13 ka." In Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01599-2_6.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Ahmad, Sheikh Saeed, Javeria Saleem, and Marria Ghalib. "Appraising Climate Change and Its Influence on Glaciers of South Asian Himalayan Region." In Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01599-2_38.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Lei, Jing, and Wenqi Wu. "Simulation and Algorithm Verification for Polar Region Inertial Navigation Based on Low Latitude Test Sailing." In Theory, Methodology, Tools and Applications for Modeling and Simulation of Complex Systems. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-2672-0_53.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Taibi, Sabrina, Imane Messelmi, Mohamed Meddi, and Mohamed Amine Feddal. "Recent Rainfall Variability in the South-West Mediterranean Region and Links with Teleconnection Patterns." In Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01599-2_26.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Jalali, Bassem, and Marie-Alexandrine Sicre. "The 4.2 ka Event in the Euro-Mediterranean Region—A Study from the MISTRALS/PALEOMEX Program." In Patterns and Mechanisms of Climate, Paleoclimate and Paleoenvironmental Changes from Low-Latitude Regions. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-01599-2_3.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Harris, Stuart A. "The Qinghai–Tibetan Railroad: Innovative Construction on Warm Permafrost in a Low-Latitude, High-Elevation Region." In Engineering Earth. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9920-4_43.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Low latitude region"

Zhang, Hong-bo, Hai-ying Li, Fei-fei Wang, Xia Hai, Rui-min Jin, and Zhuo-jun Han. "An Equinoctial Asymmetry Index Model of Ionospheric Scintillation Occurrences Over Chinese Low Latitude Region." In 2024 14th International Symposium on Antennas, Propagation and EM Theory (ISAPE). IEEE, 2024. https://doi.org/10.1109/isape62431.2024.10841106.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Kumar Rajana, Siva Sai, Sampad Kumar Panda, and Chiranjeevi G. Vivek. "Ionospheric Perturbations over the Low-Latitude Indian Region During the Geomagnetic Storm of 26–28 February 2023." In IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2024. http://dx.doi.org/10.1109/igarss53475.2024.10640924.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Wang, Jianyuan, Na Li, Zhimei Tang, Zonghua Ding, and Jinsong Chen. "The Response of Quasi-Two-Day Waves to the 2013 Major Stratospheric Sudden Warming Over Low-Latitude Region." In 2024 14th International Symposium on Antennas, Propagation and EM Theory (ISAPE). IEEE, 2024. https://doi.org/10.1109/isape62431.2024.10840616.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Zainuddin, Aznilinda, Muhammad Asraf Hairuddin, Akimasa Yoshikawa, et al. "Comparative Analysis of dB/dt Response Towards dH/dt as Proxies for Geomagnetically Induced Currents (GICs) in Low-Latitude Region." In 2024 IEEE Symposium on Wireless Technology & Applications (ISWTA). IEEE, 2024. http://dx.doi.org/10.1109/iswta62130.2024.10651826.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Lazaroiu, Gheorghe, Mohammed Osman, Lucian Mihaescu, Cornel Panait, and Cristian-Valentin Strejoiu. "OPTIMIZING SOLAR THERMAL SYSTEMS FOR DOMESTIC HOT WATER: A CASE STUDY ON LOW-FLOW TECHNOLOGY." In SGEM International Multidisciplinary Scientific GeoConference. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/6.2/s26.44.

Pełny tekst źródła

Streszczenie:

This paper presents an in-depth analysis of a residential solar thermal system designed for domestic hot water (DHW) production in a single-family dwelling located in Mangalia, Romania. Positioned at a latitude of 43.894� and a longitude of 28.422�, Mangalia benefits from an annual global irradiation of 1403 kWh/m?, providing favorable conditions for solar energy utilization. The study evaluates the system's performance over the course of a year, focusing on energy consumption, solar fraction, and environmental benefits. The solar thermal system in Mangalia achieves a performance ratio of 2.02, indicating that each unit of auxiliary energy input generates over two units of useful thermal energy. Notably, 64.3% of the household's total energy demand is met through solar energy, significantly reducing the reliance on conventional energy sources. Further analysis reveals that the system produces a total annual thermal output of 2661 kWh, with energy savings reaching 2801 kWh per year. These savings correspond to a reduction of approximately 1502 kilograms in CO2 emissions, underscoring the environmental advantages of solar thermal technology in this region. By integrating detailed operational data, this paper highlights the system's efficiency in harnessing solar energy, particularly in the context of Mangalia's climatic conditions. The findings emphasize the potential for optimizing system design to maximize energy efficiency and reduce environmental impact. The paper concludes with recommendations for enhancing the adoption of solar thermal systems in residential settings across similar geographical locations, contributing to the global transition toward sustainable energy solutions.

Style APA, Harvard, Vancouver, ISO itp.

Jagiwala, Darshna D., Shweta N. Shah, and Mehul V. Desai. "Case study: NavIC Performance Observation on Low Latitude Region." In 2021 2nd International Conference on Range Technology (ICORT). IEEE, 2021. http://dx.doi.org/10.1109/icort52730.2021.9581415.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Tongkasem, Napat, Lin M. M. Myint, and Pornchai Supnithi. "Precise total electron content map monitoring in low latitude region." In 2022 37th International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC). IEEE, 2022. http://dx.doi.org/10.1109/itc-cscc55581.2022.9895007.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Jiang, Ping, Haixia Li, Chuiwei Lu, Hua Cheng, and Jiejie Chen. "Meshing Scheme Research of Our National Mid-low Latitude region." In 2019 Chinese Control Conference (CCC). IEEE, 2019. http://dx.doi.org/10.23919/chicc.2019.8866255.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Dey, Abhijit, and Nirvikar Dashora. "Low latitude ionospheric effects: GNSS positioning at ionospheric anomaly peak region." In 2015 International Conference on Computers, Communications, and Systems (ICCCS). IEEE, 2015. http://dx.doi.org/10.1109/ccoms.2015.7562882.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Zhang, DH, YQ Hao, and Z. Xiao. "The temporal dependence of GPS cycle slip in low-latitude region." In 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC). IEEE, 2015. http://dx.doi.org/10.1109/ursi-at-rasc.2015.7303129.

Pełny tekst źródła

Style APA, Harvard, Vancouver, ISO itp.

Raporty organizacyjne na temat "Low latitude region"

Xavier, Prince, Martin Willett, Tim Graham, et al. Assessment of the Met Office Global Coupled model version 4 (GC4) configurations. Met Office, 2024. http://dx.doi.org/10.62998/uzui3766.

Pełny tekst źródła

Streszczenie:

The Global Coupled model version 4 (GC4) is an upgraded configuration of the MetUM system, building upon its predecessor, GC3.0/3.1. It incorporates various improvements and changes in the atmospheric and land components (Global Atmosphere 8 and Global Land 9 - GA8GL9) while keeping the ocean component (Global Ocean 6 - GO6) unchanged, except for minor bug fixes. The GC4 model introduces several enhancements, such as the drag package for land surface and hydrology, improvements in radiation and large-scale precipitation parametrisations, advancements in the boundary layer and convection representation (including the prognostic-based convective entrainment rate - ProgEnt), and updates in aerosol properties. Additionally, the inclusion of a multi-grid solver in the dynamics module aims to improve model stability and reduce computational costs. Key improvements in GC4 include better representation of the diurnal cycle of convection over land, reduced Southern Ocean warm bias, increased rainfall over India during the JJA season, improved distribution of precipitation, enhanced representation of low-medium clouds over Northern Europe, and positive impacts of atmosphere-ocean coupling on NWP scores. However, challenges and areas for further improvement persist, including excessive global precipitation, warm biases over coastal regions of East Asia, wet biases over East Asia, weak cloud forcing over certain regions, hydrological cycle discrepancies, biases in gross primary productivity, persistent Southern Ocean biases, enhanced warming and weakened trade winds in the equatorial east Pacific, excessive surface warming in the North Atlantic, weakening of monsoon low-pressure systems and tropical cyclones, drying over Africa, and excessive thick cloud biases in mid-latitudes. The next version of GC (GC5) will attempt to address some of these biases in the next development and assessment cycle with inputs from relevant evaluation groups and partners.

Style APA, Harvard, Vancouver, ISO itp.

Cardenas Solano, Leidy Johanna. Vigilancia tecnológica: identificación de usos potenciales de la yuca (manihot esculenta). Corporación Colombiana de Investigación Agropecuaria - AGROSAVIA, 2023. http://dx.doi.org/10.21930/agrosavia.vigilanciatecnologica.2023.1.

Pełny tekst źródła

Streszczenie:

Los estudios de vigilancia científica se enfocan en la identificación de tendencias de base, emergentes y motor, que conforman el estado del arte de una temática específica para establecer el escenario actual de las actividades de investigación. La vigilancia se concibe como el proceso de obtención, análisis, interpretación y difusión de información de valor estratégico, que se transmite a los responsables de la toma de decisiones en el momento oportuno y que permite conocer las líneas de investigación, el trabajo otras latitudes, las empresas líderes de un producto entre otros. Mediante el uso de la vigilancia tecnológica se analizó estado de la investigación para usos potenciales de la Yuca (Manihot esculenta). Se realizó la revisión de la literatura científica y tecnológica de los diferentes usos que se han identificado para el aprovechamiento de la yuca con el objetivo de identificar potencialidades de este cultivo en el contexto colombiano. La yuca (Manihot esculenta Crantz) denominada batata o mandioca pertenece al género Manihot (Euphorbiaceae) y existen más de 100 especies en el género Manihot, es una de las tres clases de yampi del mundo, se cultiva extensamente en zonas tropicales y subtropicales. Esta raíz es una de las principales materias primas para la fabricación de almidón en la industria, la cual tiene una demanda que asciende aproximadamente a 50 millones de toneladas anuales, y se obtiene principalmente de la patata, el maíz, el trigo y justamente, la yuca. El 65% de la producción total de mandioca en el mundo se destina a la alimentación humana y es uno de los principales cultivos alimentarios para los agricultores de bajos ingresos de las regiones tropicales y subtropicales. Además, es la única especie apta para el cultivo económico, su tubérculo raíz y su lámina foliar son comestibles, y debido a que es un cultivo tropical y tiene altos requerimientos de iluminación, la yuca puede crecer normalmente después de ser cultivada al aire libre y recibir suficiente iluminación. Aunque, cuando las raíces de yuca tienen tiempo suficiente para crecer, el alto rendimiento puede dar un contenido de almidón del 27% al 36%, también conocido como punto máximo de almidón de tapioca.

Style APA, Harvard, Vancouver, ISO itp.

Las comunidades transnacionales: Experiencias internacionales en remesas. Inter-American Development Bank, 2003. http://dx.doi.org/10.18235/0006119.

Pełny tekst źródła

Streszczenie:

Las ineficiencias en el mercado de remesas, la falta de información relevante y el incipiente desarrollo de los sistemas financieros de la Región, llevan a FOMIN a estudiar las particularidades del mercado de América Latina y el Caribe en otras latitudes, a fin de extraer experiencias en materias relacionadas con costos de transferencia, regulación y nivel de bancarización.

Style APA, Harvard, Vancouver, ISO itp.

Las Remesas como Instrumento de Desarrollo en el Ecuador. Inter-American Development Bank, 2003. http://dx.doi.org/10.18235/0006120.

Pełny tekst źródła

Streszczenie:

Da a conocer el interés de los gobiernos e instituciones de desarrollo por el crecimiento sostenido de los flujos de remesas, al reconocer a éstos como un mecanismo poderoso en el desarrollo de las economías de la Región. Las ineficiencias en el mercado de remesas, la falta de información relevante y el incipiente desarrollo de los sistemas financieros de la Región, llevan a FOMIN a estudiar las particularidades del mercado de América Latina y el Caribe en otras latitudes, a fin de extraer experiencias en materias relacionadas con costos de transferencia, regulación y nivel de bancarización.

Style APA, Harvard, Vancouver, ISO itp.

Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!