Journal articles: 'Continental data'

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Walker, Paul, Doug Cocks, and Mike Young. "Regionalising continental data sets." Cartography 14, no. 1 (1985): 66–74. http://dx.doi.org/10.1080/00690805.1985.10438289.

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Pocakal, Damir. "Hailpad data analysis for the continental part of Croatia." Meteorologische Zeitschrift 20, no. 4 (2011): 441–47. http://dx.doi.org/10.1127/0941-2948/2011/0263.

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Corrêa, Iran Carlos Stalliviere, Svetlana Medeanic, Jair Weschenfelder, Elírio Ernestino Toldo Júnior, José Carlos Nunes, and Ricardo Baitelli. "THE PALAEO-DRAINAGE OF THE LA PLATA RIVER IN SOUTHERN BRAZIL CONTINENTAL SHELF." Revista Brasileira de Geofísica 32, no. 2 (2014): 259. http://dx.doi.org/10.22564/rbgf.v32i2.481.

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ABSTRACT. This paper addresses the characterization of the geomorphology and palaeo-evolution of the La Plata River on the south Brazilian continental shelf,through bathymetric data and sedimentary and palynological analysis from sediment core samples. The analysis allowed us to characterize a transgressive depositionalsequence in the La Plata River palaeo-channel. The palynological sequences revealed continental fresh water environments, that involved into lagoonal and mixohalineenvironments and then into shallow marine environments towards the top, thus characterizing a fluvial-estuarine environment. These new data offer sufficient informationto establish the palaeo-geographic evolution of the La Plata River palaeo-channel and its local influence on the sedimentation of the Rio Grande do Sul Statecontinental shelf.Keywords: palaeo-valley, continental shelf, marine transgression, La Plata River. RESUMO. O presente trabalho trata da evolução e caracterização geomorfológica do paleocanal do rio de La Plata sobre a plataforma continental sul-brasileira.A partir da análise de dados de levantamento batimétrico e da obtenção de testemunhos no paleocanal, coletados para fins de estudo morfológico, sedimentológico epalinológico, foi possível identificar sequências deposicionais transgressivas. Os registros palinológicos evidenciaram ambientes com influência continental de água doce, migrando para lagunar, mixohalino e marinho raso, em direção ao topo dos testemunhos, caracterizando um ambiente fluvio-estuarino. Os resultados obtidoscontribuem para o estabelecimento da evolução paleogeográfica e da influência do paleocanal do rio de La Plata na sedimentação, de parte, da plataforma continentaldo Rio Grande do Sul.Palavras-chave: paleovale, plataforma continental, transgressão marinha, rio de La Plata.

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Matsikaris, Anastasios, Martin Widmann, and Johann Jungclaus. "Influence of proxy data uncertainty on data assimilation for the past climate." Climate of the Past 12, no. 7 (2016): 1555–63. http://dx.doi.org/10.5194/cp-12-1555-2016.

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Abstract. Data assimilation (DA) is an emerging topic in palaeoclimatology and one of the key challenges in this field. Assimilating proxy-based continental mean temperature reconstructions into the MPI-ESM model showed a lack of information propagation to small spatial scales . Here, we investigate whether this lack of regional skill is due to the methodology or to errors in the assimilated reconstructions. Error separation is fundamental, as it can lead to improvements in DA methods. We address the question by performing a new set of simulations, using two different sets of target data; the proxy-based PAGES 2K reconstructions (DA-P scheme), and the HadCRUT3v instrumental observations (DA-I scheme). Again, we employ ensemble-member selection DA using the MPI-ESM model, and assimilate Northern Hemisphere (NH) continental mean temperatures; the simulated period is 1850–1949 AD. Both DA schemes follow the large-scale target and observed climate variations well, but the assimilation of instrumental data improves the performance. This improvement cannot be seen for Asia, where the limited instrumental coverage leads to errors in the target data and low skill for the DA-I scheme. No skill on small spatial scales is found for either of the two DA schemes, demonstrating that errors in the assimilated data are not the main reason for the unrealistic representation of the regional temperature variability in Europe and the NH. It can thus be concluded that assimilating continental mean temperatures is not ideal for providing skill on small spatial scales.

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Cuesta-Valero, Francisco José, Almudena García-García, Hugo Beltrami, J. Fidel González-Rouco, and Elena García-Bustamante. "Long-term global ground heat flux and continental heat storage from geothermal data." Climate of the Past 17, no. 1 (2021): 451–68. http://dx.doi.org/10.5194/cp-17-451-2021.

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Abstract. Energy exchanges among climate subsystems are of critical importance to determine the climate sensitivity of the Earth's system to greenhouse gases, to quantify the magnitude and evolution of the Earth's energy imbalance, and to project the evolution of future climate. Thus, ascertaining the magnitude of and change in the Earth's energy partition within climate subsystems has become urgent in recent years. Here, we provide new global estimates of changes in ground surface temperature, ground surface heat flux, and continental heat storage derived from geothermal data using an expanded database and new techniques. Results reveal markedly higher changes in ground heat flux and heat storage within the continental subsurface than previously reported, with land temperature changes of 1 K and continental heat gains of around 12 ZJ during the last part of the 20th century relative to preindustrial times. Half of the heat gain by the continental subsurface since 1960 has occurred in the last 20 years.

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Barker, N. D., J. P. Morten, and D. V. Shantsev. "Optimizing EM data acquisition for continental shelf exploration." Leading Edge 31, no. 11 (2012): 1276–84. http://dx.doi.org/10.1190/tle31111276.1.

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Wu, Zhongliang, Yongxian Zhang, Thomas H. W. Goebel, et al. "Continental Earthquakes: Physics, Simulation, and Data Science—Introduction." Pure and Applied Geophysics 177, no. 1 (2019): 1–8. http://dx.doi.org/10.1007/s00024-019-02382-2.

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Zhang, Jingxiong, Phaedon Kyriakidis, and Richard Kelly. "Geostatistical approaches to conflation of continental snow data." International Journal of Remote Sensing 30, no. 20 (2009): 5441–51. http://dx.doi.org/10.1080/01431160903130960.

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Nelson, Ross, David Case, Ned Horning, Virgil Anderson, and Sree Pillai. "Continental land cover assessment using landsat MSS data." Remote Sensing of Environment 21, no. 1 (1987): 61–81. http://dx.doi.org/10.1016/0034-4257(87)90007-1.

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Bai, Yongliang, Simon E. Williams, R. Dietmar Müller, Zhan Liu, and Maral Hosseinpour. "Mapping crustal thickness using marine gravity data: Methods and uncertainties." GEOPHYSICS 79, no. 2 (2014): G27—G36. http://dx.doi.org/10.1190/geo2013-0270.1.

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Crustal thickness is a critical parameter for understanding the processes of continental rifting and breakup and the evolution of petroleum systems within passive margins. However, direct measurements of crustal thickness are sparse and expensive, highlighting the need for methodologies using gravity anomaly data, jointly with other geophysical data, to estimate crustal thickness. We evaluated alternative gravity inversion methodologies to map crustal thickness variations at rifted continental margins and adjacent oceanic basins, and we tested our methodology in the South China Sea (SCS). Different strategies were investigated to estimate and remove the gravity effect of density variations of sediments and the temperature and pressure variations of the lithospheric mantle from the observed free air gravity anomaly data. Sediment density was calculated using a relationship between sediment thickness, porosity, and density. We found that this method is essential for crustal thickness inversion in the presence of a thick sedimentary cover by comparing the Moho depths obtained from gravity inversion and seismic interpretation in the Yinggehai Basin where sediments are up to 13 km thick; the inversion accuracy depended on the parameters of the exponential equation between porosity and the buried depth. We modeled the lithospheric mantle temperature field based on oceanic crustal age, continental crustal stretching factors, and other boundary conditions. We tested three different methods to calculate the thermal expansion coefficient, which is either held constant or is a linear/polynomial function of temperature, for applying a thermal correction and found that the inversion results were relatively insensitive to alternative methods. We compared inversion results with two recent deep seismic profiles that image the rifted continental edge at the northern margin of the SCS and the continental Liyue Bank (Reed Bank) at the southern margin, and we found that the inversion accuracy was improved considerably by removing sediment, thermal, and pressure gravity effects.

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Tolotti, R., C. Salvi, G. Salvi, and M. C. Bonci. "Late Quaternary climate variability as recorded by micropalaeontological diatom data and geochemical data in the western Ross Sea, Antarctica." Antarctic Science 25, no. 6 (2013): 804–20. http://dx.doi.org/10.1017/s0954102013000199.

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AbstractCores acquired from the Ross Sea continental shelf and continental slope during the XXX Italian Programma Nazionale di Ricerche in Antartide (PNRA) were analysed and yielded interesting micropalaeontological, biostratigraphic diatom results and palaeoceanographic implications. These multi-proxy analyses enabled us to reconstruct the glacial/deglacial history of this sector of the Ross embayment over the last 40 000 years, advancing our understanding of the Last Glacial Maximum (LGM) environmental and sedimentological processes linked to the Ross Sea ice sheet/ice shelf fluctuations in a basin and continental-slope environment, and allowed us to measure some of the palaeoceanographic dynamics. The central sector of the Ross Sea and part of its coast (south of the Drygalski Ice Tongue) enjoyed open marine conditions in the pre-LGM era (27 500–24 000 years bp). The retreat of the ice sheet could have been influenced by a southward shift of a branch of the Ross gyre, which triggered early deglaciation at c. 18 600 cal bp with a significant Modified Circumpolar Deep Water inflow over the continental slope at c. 14 380 cal BP. We assume that a lack of depositional material in each core, although at different times, represents a hiatus. Other than problems in core collection, this could be due to the onset of modern oceanographic conditions, with strong gravity currents and strong High Salinity Shelf Water exportation. Moreover, we presume that improvements in biostratigraphy, study of reworked diatom taxa, and lithological and geochemical analyses will provide important constraints for the reconstruction of the LGM grounding line, ice-flow lines and ice-flow paths and an interesting tool for reconstructing palaeo-sub-bottom currents in this sector of the Ross embayment.

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Santos, Darcicléa F., João B. C. Silva, Valéria C. F. Barbosa, and Luiz F. S. Braga. "Deep-pass — An aeromagnetic data filter to enhance deep features in marginal basins." GEOPHYSICS 77, no. 3 (2012): J15—J22. http://dx.doi.org/10.1190/geo2011-0146.1.

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An aeromagnetic data filter was tested as a tool in enhancing the magnetic responses of deep sources associated with marginal basins. Our approach consists in amplifying the responses of magnetic sources which extend through the continental slope and continental rise. This amplification compensates for the magnetic response attenuation over the continental slope as a result of (1) the seaward increase of the distance between the source and the magnetometer and (2) the seaward decrease in the volume of sources within the continental crust. To amplify the source response, we multiply the total-field anomaly at a given location by the exponential of the bathymetric depth at the same point. Tests on synthetic and real data showed that the filter was able to recover the locations of linear magnetic responses not clearly seen in the total-field-anomaly map. When compared with the analytic signal amplitude and the total horizontal derivative filters, the proposed filter proved to be complementary in enhancing lineaments with different orientations. When applied in conjunction with these filters, the proposed filter produced a synergistic effect, revealing lineaments that were not present in individual applications of the filters. The application of the filter to an offshore Brazilian margin comprising the Camamu-Almada and Jequitinhonha marginal basins highlighted northwest–southeast and northeast–southwest lineaments not clearly seen in the total-field data. The northeast–southwest lineaments were interpreted as related to fracture zones that may cut across the continental margin, controlling basement structures and fluid migration paths.

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Mammola, Stefano, Pedro Cardoso, Dorottya Angyal, et al. "Continental data on cave-dwelling spider communities across Europe (Arachnida: Araneae)." Biodiversity Data Journal 7 (October 8, 2019): e38492. https://doi.org/10.3897/BDJ.7.e38492.

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14

JUSTICE, C. O., J. R. G. TOWNSHEND, and V. L. KALB. "Representation of vegetation by continental data sets derived from NOAA-AVHRR data." International Journal of Remote Sensing 12, no. 5 (1991): 999–1021. http://dx.doi.org/10.1080/01431169108929707.

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Sa'adu, Bello, S. Abdulfatah, and A. I. Khalil. "Microphysical Analysis of Maritime and Continental Aerosols: Determination of Hygroscopic Growth Factors Using OPAC Data and Modeling Approaches." UMYU Scientifica 3, no. 4 (2024): 15–23. http://dx.doi.org/10.56919/usci.2434.002.

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Study’s Excerpt/Novelty This study presents an application of mass-based hygroscopicity models to analyze microphysical properties of atmospheric aerosols from continental and maritime sources using data from the Optical Properties of Aerosols and Clouds (OPAC). By examining hygroscopic growth factors and effective radii at eight different relative humidities, the research highlights the significant variation in growth factors between maritime and continental aerosols, with maritime clean aerosols exhibiting a substantially higher growth factor at 99% RH. The study's robust statistical analysis, confirmed by R² values greater than 90% and significance levels below 0.05, demonstrates the model's efficacy for atmospheric modeling and remote sensing applications. Full Abstract The interplay of marine and continental sources governed the atmospheric aerosols over coastal areas. The transport of aerosols from continental sources into sea surfaces through deposition or diffusion is what causes the fast reduction of continental aerosols. A mass based based hygroscopicity models were applied to the data extracted from the Optical Properties of Aerosols and Clouds (OPAC). The microphysical properties obtained were radii, density, refractive index, mass, volume, and sphericity of the atmospheric aerosols of continental and maritime aerosols at eight different relative humidity of 0%, 50%, 70%, 80%, 90%, 95%, 98%, and 99%. Using the microphysical properties, hygroscopic growth factors, and effective radii of the mixtures, mass growth factor Gm and diameter growth factor DG were determined, and also the parameter Km for mass based of the aerosols were determined using multiple regression analysis with SPSS 16.0 at each relative humidity. The results show that Gm for maritime clean is higher than other aerosols, with a value of 34.46 at 99% RH, while the lowest value is for continental average, with a value of 5.03 at 99% RH. Also, R2 for the model is greater than 90%. The significance and P-values are less than 0.05; therefore, the model is good for atmospheric modeling and remote sensing.

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Solleder, Verena Maria. "Data Mining im praktischen Einsatz." Anwendungen und Konzepte der Wirtschaftsinformatik, no. 6 (December 12, 2017): 136–50. http://dx.doi.org/10.26034/lu.akwi.2017.3177.

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Die Continental Automotive GmbH sammelt schon über einen längeren Zeitraum große Datenmengen aus laufenden IT-Kundenprojekten. Dabei handelt es sich um Engineering Daten, welche aus unterschiedlichen Anforderungen, Testfällen, Problem Reports und Chan-ge Requests bestehen. Diese liegen strukturiert und kon-sistent in einem Data Warehouse vor. Um einen Mehr-wert aus den Daten ziehen zu können, werden diese für den Einsatz von Data Mining genutzt. Dabei wird ganz klar das Ziel verfolgt, durch Anwendung eines geeigne-ten Data Mining Verfahrens die aus dem Data Wa-rehouse zur Verfügung gestellten Daten zu untersuchen und somit den aktuell bestehenden Softwareentwick-lungsprozess zu prüfen. Zur Durchführung wird die freie Software KNIME verwendet. Diese dient nach sorgfälti-ger Datenanalyse zur Aufbereitung der Datengrundlage, Modellierung und Anwendung des ausgewählten Data Mining Verfahrens, des Assoziationsverfahrens. Die daraus resultierenden Ergebnisse werden im letzten Schritt quantifiziert und liefern Aufschlüsse über den Softwareentwicklungsprozess mit zugehöriger Daten-grundlage.Die hier vorliegende Arbeit wurde bei der Continental Automotive GmbH Regensburg durchgeführt und stammt aus dem Geschäftsfeld Body & Security aus der Division Interior.

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Denes, Samuel L., Susan E. Parks, Leanna Matthews, Hannah Blair, Pramod Varshney, and Kurt Fristrup. "Continental scale acoustic monitoring program: One year of data." Journal of the Acoustical Society of America 137, no. 4 (2015): 2220. http://dx.doi.org/10.1121/1.4920087.

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Warner, Mike. "Migration - why doesn't it work for deep continental data?" Geophysical Journal International 89, no. 1 (1987): 21–26. http://dx.doi.org/10.1111/j.1365-246x.1987.tb04382.x.

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Shmonov, V. M., V. M. Vitiovtova, A. V. Zharikov, and A. A. Grafchikov. "Permeability of the continental crust: implications of experimental data." Journal of Geochemical Exploration 78-79 (May 2003): 697–99. http://dx.doi.org/10.1016/s0375-6742(03)00129-8.

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Artemieva, Irina M. "The continental lithosphere: Reconciling thermal, seismic, and petrologic data." Lithos 109, no. 1-2 (2009): 23–46. http://dx.doi.org/10.1016/j.lithos.2008.09.015.

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Milne, Glenn A., Jerry X. Mitrovica, and Daniel P. Schrag. "Estimating past continental ice volume from sea-level data." Quaternary Science Reviews 21, no. 1-3 (2002): 361–76. http://dx.doi.org/10.1016/s0277-3791(01)00108-1.

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McLachlan, Jason S., and James S. Clark. "Reconstructing historical ranges with fossil data at continental scales." Forest Ecology and Management 197, no. 1-3 (2004): 139–47. http://dx.doi.org/10.1016/j.foreco.2004.05.026.

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Johnson, A. C. "Cenozoic tectonic evolution of the Marguerite Bay area, Antarctic Peninsula, interpreted from geophysical data." Antarctic Science 9, no. 3 (1997): 268–80. http://dx.doi.org/10.1017/s0954102097000369.

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Magnetic, gravity and bathymetric data from Marguerite Bay are used to study the relationships between oceanic and continental tectonic evolution in the arc and fore-arc of the Antarctic Peninsula. The data are used to redefine the crustal structure of the Marguerite Bay area, providing evidence for a northward continuation of George VI Sound and the Alexander Island Mesozoic accretionary prism almost to the continental shelf edge. A two-stage model of extension, associated with changes in spreading rates and approaching ridge segments, is proposed to explain the crustal structure and Cenozoic tectonic evolution of the area. The model involves the opening of George VI trough by Tertiary dextral transtension, followed by oblique extension in an area bounded by the Tula and Adelaide fracture zones. This interpretation confirms previous work linking oceanic tectonic processes with continental arc and fore-arc structural development.

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Ding, Weifeng, Linjiang Qin, Xia Feng, et al. "A new perspective on the continent–ocean boundary of Palawan continental block identified with geophysical data." Tectonophysics 826 (March 2022): 229239. http://dx.doi.org/10.1016/j.tecto.2022.229239.

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Cochran, James R., and Robin E. Bell. "Inversion of IceBridge gravity data for continental shelf bathymetry beneath the Larsen Ice Shelf, Antarctica." Journal of Glaciology 58, no. 209 (2012): 540–52. http://dx.doi.org/10.3189/2012jog11j033.

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AbstractA possible cause for accelerated thinning and break-up of floating marine ice shelves is warming of the water in the cavity below the ice shelf. Accurate bathymetry beneath large ice shelves is crucial for developing models of the ocean circulation in the sub-ice cavities. A grid of free-air gravity data over the floating Larsen C ice shelf collected during the IceBridge 2009 Antarctic campaign was utilized to develop the first bathymetry model of the underlying continental shelf. Independent control on the continental shelf geologic structures from marine surveys was used to constrain the inversion. Depths on the continental shelf beneath the ice shelf estimated from the inversion generally range from about 350 to 650 m, but vary from <300 to >1000 m. Localized overdeepenings, 20-30 km long and 900-1000 m deep, are located in inlets just seaward of the grounding line. Submarine valleys extending seaward from the overdeepenings coalesce into two broad troughs that extend to the seaward limit of the ice shelf and appear to extend to the edge of the continental shelf. The troughs are generally at a depth of 550-700 m although the southernmost mapped trough deepens to over 1000 m near the edge of the ice shelf just south of 68° S. The combination of the newly determined bathymetry with published ice-draft determinations based on laser altimetry and radar data defines the geometry of the water-filled cavity. These newly imaged troughs provide a conduit for water to traverse the continental shelf and interact with the overlying Larsen C ice shelf and the grounding lines of the outlet glaciers.

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Hindell, MA, HR Burton, and DJ Slip. "Foraging areas of southern elephant seals, Mirounga leonina, as inferred from water temperature data." Marine and Freshwater Research 42, no. 2 (1991): 115. http://dx.doi.org/10.1071/mf9910115.

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Fourteen time-depth-temperature recorders were recovered from adult southern elephant seals (Mirounga leonina) returning to Macquarie Island to breed or moult. The resulting temperature/depth profiles indicated that all four males spent most of their time in waters lying over the Antarctic Continental Shelf, whereas only one of the ten females spent any time there. Five of the females foraged just off the Antarctic Continental Shelf. and the other five remained near the Antarctic Polar Front.

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Zakharov, V. S., L. I. Demina, and M. Yu Promyslova. "Geodynamic nature of Northwestern Taimyr meta- morphic zonality: results of numerical modeling and geology-petrological data." Moscow University Bulletin Series 4 Geology, no. 5, 2024 (2024): 23–33. https://doi.org/10.55959/msu0579-9406-4-2024-63-5-23-33.

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Zonal metamorphism is widely manifested within the North Taimyr tectonic zone, composed mainly of rocks from the continental slope and the foot of the Kara continent passive margin. To explain the observed zonal metamorphism features, numerical geodynamic modeling was carried out, reproducing the continental collision of the Kara and Siberian continents in the late Paleozoic. It is shown that the modeling P–T conditions dynamics of continental crust rocks (P–T–t trends) corresponds well to the observed metamorphic zonality thermodynamic parameters. It has been proposed a geodynamic scheme, according to which the formation of metamorphic zonality in Northwestern Taimyr occurred on the descending branch of the P–T–t metamorphism trend. Such metamorphism took place at the final stage of the collision that formed the North Taimyr tectonic zone.

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Al-Jubouri., Assist Prof Dr Salam Hatif Ahmed. "Spatial and Temporal Variation of the Continental and Marine in the Governorates of Mosul, Baghdad and Basrah, for the period 1984-2013." ALUSTATH JOURNAL FOR HUMAN AND SOCIAL SCIENCES 220, no. 2 (2018): 57–78. http://dx.doi.org/10.36473/ujhss.v220i2.485.

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The Governorates of Mosul, Baghdad and Basrah are characterized by high Continental degree, and low Marine degree. Showing Continental and Marine degree for every Governorate depending on the period of study is the most important aim in this research.  The highest continental degree recorded in the study area was 96.7%, in Basrah in 2008 according to Borisov equation, and the Continental refers to very severe continental climate. This Continental degree was the highest between three other equations used depending on weather Stations Data In Mosul, Baghdad and Basrah, The continental Degree according to equations refer to rise trend in the period 1984-2013.

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Li, Wentian, Jane E. Cerise, Yaning Yang, and Henry Han. "Application of t-SNE to human genetic data." Journal of Bioinformatics and Computational Biology 15, no. 04 (2017): 1750017. http://dx.doi.org/10.1142/s0219720017500172.

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The t-distributed stochastic neighbor embedding t-SNE is a new dimension reduction and visualization technique for high-dimensional data. t-SNE is rarely applied to human genetic data, even though it is commonly used in other data-intensive biological fields, such as single-cell genomics. We explore the applicability of t-SNE to human genetic data and make these observations: (i) similar to previously used dimension reduction techniques such as principal component analysis (PCA), t-SNE is able to separate samples from different continents; (ii) unlike PCA, t-SNE is more robust with respect to the presence of outliers; (iii) t-SNE is able to display both continental and sub-continental patterns in a single plot. We conclude that the ability for t-SNE to reveal population stratification at different scales could be useful for human genetic association studies.

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Hu, Jing, Hongrui Qiu, Haijiang Zhang, and Yehuda Ben-Zion. "Using Deep Learning to Derive Shear-Wave Velocity Models from Surface-Wave Dispersion Data." Seismological Research Letters 91, no. 3 (2020): 1738–51. http://dx.doi.org/10.1785/0220190222.

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Abstract We present a new algorithm for derivations of 1D shear-wave velocity models from surface-wave dispersion data using convolutional neural networks (CNNs). The technique is applied for continental China and the plate boundary region in southern California. Different CNNs are designed for these two regions and are trained using theoretical Rayleigh-wave phase and group velocity images computed from reference 1D VS models. The methodology is tested with 3260 phase–group images for continental China and 4160 phase–group images for southern California. The conversions of these images to velocity profiles take ∼23 s for continental China and ∼30 s for southern California on a personal laptop with the NVIDIA GeForce GTX 1060 core and a memory of 6 GB. The results obtained by the CNNs show high correlation with previous studies using conventional methods. The effectiveness of the CNN technique makes this fast method an important alternative for deriving shear-wave velocity models from large datasets of surface-wave dispersion data.

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Roldán-Henao, Natalia, John E. Yorks, Tianning Su, Patrick A. Selmer, and Zhanqing Li. "Statistically Resolved Planetary Boundary Layer Height Diurnal Variability Using Spaceborne Lidar Data." Remote Sensing 16, no. 17 (2024): 3252. http://dx.doi.org/10.3390/rs16173252.

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The Planetary Boundary Layer Height (PBLH) significantly impacts weather, climate, and air quality. Understanding the global diurnal variation of the PBLH is particularly challenging due to the necessity of extensive observations and suitable retrieval algorithms that can adapt to diverse thermodynamic and dynamic conditions. This study utilized data from the Cloud-Aerosol Transport System (CATS) to analyze the diurnal variation of PBLH in both continental and marine regions. By leveraging CATS data and a modified version of the Different Thermo-Dynamics Stability (DTDS) algorithm, along with machine learning denoising, the study determined the diurnal variation of the PBLH in continental mid-latitude and marine regions. The CATS DTDS-PBLH closely matches ground-based lidar and radiosonde measurements at the continental sites, with correlation coefficients above 0.6 and well-aligned diurnal variability, although slightly overestimated at nighttime. In contrast, PBLH at the marine site was consistently overestimated due to the viewing geometry of CATS and complex cloud structures. The study emphasizes the importance of integrating meteorological data with lidar signals for accurate and robust PBLH estimations, which are essential for effective boundary layer assessment from satellite observations.

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Trif, Nicolae, and Vlad Codrea. "New data on maastrichtian fishes of the ‘Haţeg Island’." Annales g?ologiques de la Peninsule balkanique, no. 00 (2022): 1. http://dx.doi.org/10.2298/gabp220424001t.

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Some discoveries from the continental deposits of the paleogeographic landmass named the ?Ha?eg Island? complete the fossil record of the Maastrichtian fish fauna of Europe. Teeth belonging to the Lonchidiidae and three morphotypes of Teleostei indet. Are reported herein, from the uppermost Cretaceous continental formations cropping out in the Ha?eg and Transylvanian sedimentary basins of Romania. These fishes document a terrestrial realm, where various aquatic environments occurred ca. 70 Ma ago, immediately after the ?Laramian? (latest Cretaceous) tectonic pulse. It is important to note the presence of a brackish water shark, reported for the first time in the Maastrichtian deposits of Romania. This advance in research argues for a higher Cretaceous fish diversity in Transylvania than previously suggested. Therefore, the ecology of the ancient vertebrate communities is better documented with elements unknown so far.

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Jajczyk, Jarosław, and Wojciech Lorkiewicz. "Data bus modelling in city buses." ITM Web of Conferences 19 (2018): 01036. http://dx.doi.org/10.1051/itmconf/20181901036.

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The paper characterizes ICT networks used in urban buses. It describes the multiplex system manufactured by Continental VOD and the ELSY multicomputer system manufactured by Thoreb, Differences in the structure and functioning of both systems were presented. Based on the Thoreb system, a test station for the modelling of a complex data bus used in city buses has been designed and built.

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Castrejon V., F. F., A. A. Porres L., and F. A. Nava P. "A velocity model perpendicular to the Acapulco trench based on resmac data." Geofísica Internacional 27, no. 1 (1988): 131–47. http://dx.doi.org/10.22201/igeof.00167169p.1988.27.1.1120.

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La interpretación de las fases sísmicas observadas en registros de la Red Mexicana de Apertura Sísmica Continental (RESMAC), por medio de las diferencias en tiempos de travesía y rastreo de rayos, se utilizó para probar dos modelos de velocidad bidimensionales de use corriente para la región de la Trinchera de Acapulco (sur de México). Como se encontró que los modelos eran inadecuados para explicar las observaciones, hubo que desarrollar un nuevo modelo "MEXD". El modelo MEXD presenta una corteza continental de 40 km de grosor, representada por capas horizontales, paralelas, de velocidad constante, y una capa de 24 km de grosor sumergiéndose con un ángulo de 13° en dirección N20°E, que representa la corteza oceánica subducida.doi: sin doi

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Grigas, T., M. Hervo, G. Gimmestad, et al. "CALIOP near-real-time backscatter products compared to EARLINET data." Atmospheric Chemistry and Physics Discussions 15, no. 5 (2015): 6041–75. http://dx.doi.org/10.5194/acpd-15-6041-2015.

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Abstract. The expedited near-real-time Level 1.5 Cloud–Aerosol Lidar (Light Detection and Ranging) with Orthogonal Polarization (CALIOP) products were evaluated against data from the ground-based European Aerosol Research Lidar Network (EARLINET). Over a period of three years, lidar data from 48 CALIOP overpasses with ground tracks within a 100 km distance from an operating EARLINET station were deemed suitable for analysis and they included a valid aerosol classification type (e.g. dust, polluted dust, clean marine, clean continental, polluted continental, mixed and/or smoke/biomass burning). For the complete dataset comprising both PBL and FT data, the correlation coefficient was 0.86, and when separated into separate layers, the PBL and FT correlation coefficients were 0.6 and 0.85 respectively. The presence of FT layers with high attenuated backscatter led to poor agreement in PBL backscatter profiles between the CALIOP and EARLINET measurements and prompted a further analysis filtering out such cases. However, the correlation coefficient value for the complete dataset decreased marginally from 0.86 to 0.84 while the PBL coefficient increased from 0.6 up to 0.65 and the FT coefficient also decreased from 0.85 to 0.79. For specific aerosol types, the correlation coefficient between CALIOP backscatter profiles and ground-based lidar data ranged from 0.37 for polluted continental aerosol in the planetary boundary layer (PBL) to 0.57 for dust in the free troposphere (FT). The results suggest different levels of agreement based on the location of the dominant aerosol layer and the aerosol type.

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Taber, J. John, and B. T. R. Lewis. "Crustal structure of the Washington continental margin from refraction data." Bulletin of the Seismological Society of America 76, no. 4 (1986): 1011–24. http://dx.doi.org/10.1785/bssa0760041011.

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Abstract Refraction data were collected in an onshore-offshore experiment in 1978 near Grays Harbor, Washington. Two-dimensional raytracing and synthetic seismograms were used to model the data along the refraction lines. The resulting velocity model uses a broad-scale subduction zone geometry to explain the major features of the data. The three main contributions of the onshore-offshore model are: (1) evidence for an approximately 9° dip of the subducting oceanic lithosphere; (2) a clear indication of the point at which the subducting slab begins to bend beneath the margin; and (3) confirmation of the continuity of the slab from the buried trench offshore to beneath Puget Sound. The model also helps explain the distribution and stress orientation of earthquakes within the subduction zone.

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Wallis, James R., Dennis P. Lettenmaier, and Eric F. Wood. "A daily hydroclimatological data set for the continental United States." Water Resources Research 27, no. 7 (1991): 1657–63. http://dx.doi.org/10.1029/91wr00977.

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NIRTA, GIUSEPPE, GIOVANNA MORATTI, LUIGI PICCARDI, et al. "From obduction to continental collision: new data from Central Greece." Geological Magazine 155, no. 2 (2018): 377–421. http://dx.doi.org/10.1017/s0016756817000942.

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AbstractThe aim of this paper is to contribute to deciphering the evolutionary history of the Hellenides by the study of a large sector of the chain located between the front of the ophiolitic units and the external zones classically attributed to the continental margin of Adria. In particular, the tectonic units located in Boeotia – a key area located in Central Greece at the boundary between the Internal and External Hellenides – were studied from structural, stratigraphic and biostratigraphic points of view. Addressing the main debated aspects concerning the origin of the ophiolite nappe(s), the tectonic evolution of the Hellenic orogen was revised with a particular emphasis on the period between obduction and continental collision. New findings were compared with consolidated data concerning the main metamorphic events recorded in the more Internal Hellenides, geochemistry and age of the ophiolites and main stratigraphic constraints obtained in other sectors of the belt. Finally, a new reconstruction of the tectonic evolution of this area was introduced and, in the context of the dispute concerning the origin of the ‘ophiolitic belts’ as a possible record of multiple oceanic basins, we put forward for consideration a ‘single ocean’ tectonic model spanning from Triassic up to Tertiary times, and valid for the whole Hellenic–Albanian sector.

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Mukherjee, Sayanti, Roshanak Nateghi, and Makarand Hastak. "Data on major power outage events in the continental U.S." Data in Brief 19 (August 2018): 2079–83. http://dx.doi.org/10.1016/j.dib.2018.06.067.

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Doucouré, C. M., and H. W. Bergh. "Continental origin of the Mozambique Plateau: a gravity data analysis." Journal of African Earth Sciences (and the Middle East) 15, no. 3-4 (1992): 311–19. http://dx.doi.org/10.1016/0899-5362(92)90017-7.

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van Zanten, Boris T., Derek B. Van Berkel, Ross K. Meentemeyer, Jordan W. Smith, Koen F. Tieskens, and Peter H. Verburg. "Continental-scale quantification of landscape values using social media data." Proceedings of the National Academy of Sciences 113, no. 46 (2016): 12974–79. http://dx.doi.org/10.1073/pnas.1614158113.

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Individuals, communities, and societies ascribe a diverse array of values to landscapes. These values are shaped by the aesthetic, cultural, and recreational benefits and services provided by those landscapes. However, across the globe, processes such as urbanization, agricultural intensification, and abandonment are threatening landscape integrity, altering the personally meaningful connections people have toward specific places. Existing methods used to study landscape values, such as social surveys, are poorly suited to capture dynamic landscape-scale processes across large geographic extents. Social media data, by comparison, can be used to indirectly measure and identify valuable features of landscapes at a regional, continental, and perhaps even worldwide scale. We evaluate the usefulness of different social media platforms—Panoramio, Flickr, and Instagram—and quantify landscape values at a continental scale. We find Panoramio, Flickr, and Instagram data can be used to quantify landscape values, with features of Instagram being especially suitable due to its relatively large population of users and its functional ability of allowing users to attach personally meaningful comments and hashtags to their uploaded images. Although Panoramio, Flickr, and Instagram have different user profiles, our analysis revealed similar patterns of landscape values across Europe across the three platforms. We also found variables describing accessibility, population density, income, mountainous terrain, or proximity to water explained a significant portion of observed variation across data from the different platforms. Social media data can be used to extend our understanding of how and where individuals ascribe value to landscapes across diverse social, political, and ecological boundaries.

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Schultz, A. "EMScope: A Continental Scale Magnetotelluric Observatory and Data Discovery Resource." Data Science Journal 8 (2009): IGY6—IGY20. http://dx.doi.org/10.2481/dsj.ss_igy-009.

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Noula, Maria, Vasilios Raftopoulos, Eftihia Gesouli, Taxiarchis Tsaprounis, and Anna Deltsidou. "Greek nursing students' immunization coverage: Data from central continental Greece." Nursing & Health Sciences 10, no. 3 (2008): 169–74. http://dx.doi.org/10.1111/j.1442-2018.2008.00385.x.

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Xiong, Sheng-Qing, Jing Tong, Yan-Yun Ding, and Zhan-Kui Li. "Aeromagnetic data and geological structure of continental China: A review." Applied Geophysics 13, no. 2 (2016): 227–37. http://dx.doi.org/10.1007/s11770-016-0552-2.

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Rummel, F., G. M�hring-Erdmann, and J. Baumg�rtner. "Stress constraints and hydrofracturing stress data for the continental crust." Pure and Applied Geophysics PAGEOPH 124, no. 4-5 (1986): 875–95. http://dx.doi.org/10.1007/bf00879616.

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Shubin, Neil H., and Hans-Dieter Sues. "Biogeography of early Mesozoic continental tetrapods: patterns and implications." Paleobiology 17, no. 3 (1991): 214–30. http://dx.doi.org/10.1017/s0094837300010575.

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The stratigraphic framework for Triassic and Early Jurassic continental strata has greatly changed in recent years. These revised correlations necessitate a review of traditional views of early Mesozoic continental faunal succession and biogeography. We have examined the relationship between tetrapod distribution and paleogeographic context during the Triassic and Early Jurassic on the basis of a data base comprising updated faunal lists for major early Mesozoic assemblages of continental tetrapods. Analysis of these data supports the hypothesis that there were few barriers to biotic interchange among continental tetrapods throughout the Triassic and Early Jurassic. Early Mesozoic tetrapod assemblages are dominated by widely distributed, often cosmopolitan families. Late Triassic patterns of latitudinal variation among tetrapod assemblages appear to be correlated to those seen among terrestrial plants and contrast with the extremely uniform distribution of Early Jurassic continental biotas.

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Brambilla, Walter, Alessandro Conforti, Simone Simeone, Paola Carrara, Simone Lanucara, and Giovanni De Falco. "Data set of submerged sand deposits organised in an interoperable spatial data infrastructure (Western Sardinia, Mediterranean Sea)." Earth System Science Data 11, no. 2 (2019): 515–27. http://dx.doi.org/10.5194/essd-11-515-2019.

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Abstract. The expected global sea level rise by the year 2100 will determine adaptation of the whole coastal system and the land retreat of the shoreline. Future scenarios coupled with the improvement of mining technologies will favour increased exploitation of sand deposits for nourishment, especially for urban beaches and sandy coasts with lowlands behind them. The objective of the work is to provide useful tools to support planning in the management of sand deposits located on the continental shelf of Western Sardinia (western Mediterranean Sea). The work has been realised through the integration of data and information collected during several projects. Available data consist of morpho-bathymetric data (multibeam) associated with morphoacoustic (backscatter) data, collected in the depth range −25 to −700 m. Extensive coverage of high-resolution seismic profiles (Chirp 3.5 kHz) has been acquired along the continental shelf. Also, surface sediment samples (Van Veen grab and box corer) and vibrocorers have been collected. These data allow mapping of the submerged sand deposits with the determination of their thickness and volume and their sedimentological characteristics. Furthermore, it is possible to map the seabed geomorphological features of the continental shelf of Western Sardinia. All the available data (https://doi.org/10.1594/PANGAEA.895430) have been integrated and organised in a geodatabase implemented through a GIS and the software suite Geoinformation Enabling ToolkIT StarterKit® (GET-IT), developed by researchers of the Italian National Research Council for RITMARE project. GET-IT facilitates the creation of distributed nodes of an interoperable spatial data infrastructure (SDI) and enables unskilled researchers from various scientific domains to create their own Open Geospatial Consortium (OGC) standard services for distributing geospatial data, observations and metadata of sensors and data sets. Data distribution through standard services follows the guidelines of the European Directive INSPIRE (DIRECTIVE 2007/2/EC); in particular, standard metadata describe each map level, containing identifiers such as data type, origin, property, quality, processing processes to foster data searching and quality assessment.

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Illarionov, V. K., O. Yu Ganzha, D. A. Ilyinsky, K. A. Roginskiy, and A. Yu Borisova. "New Ideas about the Structure and Nature of the Crust of the Western Part of the Bay of Bengal, Obtained taking into Account Deep Seismic Data." Okeanologiâ 64, no. 3 (2024): 526–41. https://doi.org/10.31857/s0030157424030128.

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A comprehensive analysis of geological and geophysical data characterizing the structure of the eastern continental margin of India and the adjacent part of the bottom of the Bay of Bengal has been carried out. According to the structural and tectonic features, three sectors are distinguished: southern, central and northern, the natural boundaries between which are the fault zones of the aulacogens Makhanadi and Godavari-Krishna. In the central sector, the pericontinental East Indian Plateau adjoins the continental slope. In 2003, R/V Mezen acquired data using deep seismic sounding method on two profiles in this region. The obtained data and their geological interpretation made it possible to identify the “reduced” continental crust. It is characterized by reduced thickness of the upper, middle and lower layers. A conclusion is made about the continental nature of the East Indian Plateau and the northern part of the Ridge 85° adjacent to it. The light sialic and effusive rocks that form the top of the ridge give a negative gravimetric anomaly in Fay's reduction, which is its outstanding feature.

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Milián-García, Yoamel, Michael A. Russello, Jessica Castellanos-Labarcena, et al. "Genetic evidence supports a distinct lineage of American crocodile (Crocodylus acutus) in the Greater Antilles." PeerJ 6 (November 12, 2018): e5836. http://dx.doi.org/10.7717/peerj.5836.

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Four species of true crocodile (genusCrocodylus) have been described from the Americas. Three of these crocodile species exhibit non-overlapping distributions—Crocodylus intermediusin South America,C. moreletiialong the Caribbean coast of Mesoamerica, andC. rhombiferconfined to Cuba. The fourth,C. acutus, is narrowly sympatric with each of the other three species. In this study, we sampled 113 crocodiles acrossCrocodyluspopulations in Cuba, as well as exemplar populations in Belize and Florida (USA), and sequenced three regions of the mitochondrial genome (D-loop, cytochrome b, cytochrome oxidase I; 3,626 base pair long dataset) that overlapped with published data previously collected from Colombia, Jamaica, and the Cayman Islands. Phylogenetic analyses of these data revealed two, paraphyletic lineages ofC. acutus. One lineage, found in the continental Americas, is the sister taxon toC. intermedius, while the Greater Antillean lineage is most closely related toC. rhombifer. In addition to the paraphyly of the twoC. acutuslineages, we recovered a 5.4% estimate of Tamura-Nei genetic divergence between the Antillean and continental clades. The reconstructed paraphyly, distinct phylogenetic affinities and high genetic divergence between Antillean and continentalC. acutuspopulations are consistent with interspecific differentiation within the genus and suggest that the current taxon recognized asC. acutusis more likely a complex of cryptic species warranting a reassessment of current taxonomy. Moreover, the inclusion, for the first time, of samples from the western population of the American crocodile in Cuba revealed evidence for continental mtDNA haplotypes in the Antilles, suggesting this area may constitute a transition zone between distinct lineages ofC. acutus. Further study using nuclear character data is warranted to more fully characterize this cryptic diversity, resolve taxonomic uncertainty, and inform conservation planning in this system.

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VUAN, A., E. LODOLO, G. F. PANZA, and C. SAULI. "Crustal structure beneath Discovery Bank in the Scotia Sea from group velocity tomography and seismic reflection data." Antarctic Science 17, no. 1 (2005): 97–106. http://dx.doi.org/10.1017/s0954102005002488.

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The Bruce, Discovery, Herdman and Jane banks, all located along the central-eastern part of the South Scotia Ridge, represent isolated topographic highs, surrounded by young oceanic crust (∼5–23 Ma), whose petrological and structural nature is still the subject of speculation due to the lack of relevant data. Surface wave tomography in and around the Scotia Sea region, performed using eight broadband seismic stations and 300 events, shows that the central-eastern part of the South Scotia Ridge is characterized by negative surface wave group velocity anomalies as large as 6% in the period range from 15 s to 50 s. The spatial resolution of our data set (∼300 km) makes it possible to study a specific area (centred at 61°S and 36°W) that includes Discovery Bank and appears to show dispersion characteristics similar to those found beneath the northern tip of the Antarctic Peninsula and southern South America. Surface wave dispersion curves are inverted to obtain 1-D isotropic shear wave velocity profiles that suggest a continental nature of Discovery Bank. Crustal thickness is in the range 23–28 km with a sub-Moho velocity of 4.1–4.2 km s−1. The boundaries of the negative group velocity anomalies are marked by a high level of seismic activity. The depth of the events and their large seismic moment suggest the presence of continental lithosphere. The continental-type crust of this topographic relief is supported by our interpretation of multichannel seismic reflection profiles acquired across this rise, where the observed seismic structures are interpreted as thinned and faulted continental plateau.

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Journal articles on the topic 'Continental data'

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