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Journal articles on the topic 'Variations in flood activity'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Liu, Yesen, Yaohuan Huang, Jinhong Wan, Zhenshan Yang, and Xiaolei Zhang. "Analysis of Human Activity Impact on Flash Floods in China from 1950 to 2015." Sustainability 13, no. 1 (2020): 217. http://dx.doi.org/10.3390/su13010217.

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An early warning of a flash flood is essential to prevent the general public from the hazardous flooding events, however, the rapid variation of human activities has led to the uncertainty of risk in prone areas. The lack of a systematic record of flash flood events introduces challenges to flash flood-related research. Herein, we map spatial and temporal variations in flash floods in China from 1950 to 2015 and establish a general ordered logit model in a geographic information environment to estimate the association between the occurrence of flash flood events and natural conditions and the

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SHALTOUT, M. A. MOSALAM, and M. T. Y. TADROS. "Variations of the solar activity and irradiance, and their influence on the flooding of the river Nile." MAUSAM 41, no. 3 (2022): 53–62. http://dx.doi.org/10.54302/mausam.v41i3.2722.

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Autocorrelation and power spectra analysis are carried out for different lengths of time series Of the following data:(l) Solar activity (sunspot, faculae and radio flux on 2800 MHz);(2) Irradiance (solar Constant measured at earth's surface and by the artificial satellite (Nimbus- 7); (3) River Nile flood (old water level, maximum flood level, and the difference between the both levels) measured at Cairo.  The results showing remarkable similarity between the power spectra of solar activity, irradiance (solar constant) and river Nile flood.  We conclude that any short

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Luz-Agostinho, KDG, AA Agostinho, LC Gomes, HF Júlio-Jr., and R. Fugi. "Effects of flooding regime on the feeding activity and body condition of piscivorous fish in the Upper Paraná River floodplain." Brazilian Journal of Biology 69, no. 2 suppl (2009): 481–90. http://dx.doi.org/10.1590/s1519-69842009000300004.

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Flood pulses affect floodplain enrichment via the incorporation of nutrients and terrestrial biomass. As a result, they positively affect the body condition of aquatic organisms. This paper evaluates whether the absence of floods (resulting from dam control) affects the feeding activity and body condition of piscivorous fish. In addition, whether piscivores respond similarly to alterations in the flooding regime was assessed. Five piscivorous species were selected (Acestrorhynchus lacustris, Hoplias aff. malabaricus, Plagioscion squamosissimus, Rhaphiodon vulpinus, and Salminus brasiliensis).

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Vannière, B., M. Magny, S. Joannin, et al. "Orbital changes, variation in solar activity and increased anthropogenic activities: controls on the Holocene flood frequency in the Lake Ledro area, Northern Italy." Climate of the Past 9, no. 3 (2013): 1193–209. http://dx.doi.org/10.5194/cp-9-1193-2013.

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Abstract. Two lacustrine sediment cores from Lake Ledro in northern Italy were studied to produce chronologies of flood events for the past 10 000 yr. For this purpose, we have developed an automatic method that objectively identifies the sedimentary imprint of river floods in the downstream lake basin. The method was based on colour data extracted from processed core photographs, and the count data were analysed to capture the flood signal. Flood frequency and reconstructed sedimentary dynamics were compared with lake-level changes and pollen inferred vegetation dynamics. The results suggest

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Czymzik, M., R. Muscheler, and A. Brauer. "Solar modulation of flood frequency in Central Europe during spring and summer on inter-annual to millennial time-scales." Climate of the Past Discussions 11, no. 5 (2015): 4833–50. http://dx.doi.org/10.5194/cpd-11-4833-2015.

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Abstract. Solar influences on climate variability are one of the most controversially discussed topics in climate research. We analyze solar forcing of flood frequency in Central Europe on inter-annual to millennial time-scales using daily discharge data of River Ammer (southern Germany) back to AD 1926 and revisiting the 5500 year flood layer time-series from varved sediments of the downstream Lake Ammersee. Flood frequency in the discharge record is significantly correlated to changes in solar activity during solar cycles 16–23 (r = −0.47, p < 0.0001, n = 73). Flood layer frequency (n = 1

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Vannière, B., M. Magny, S. Joannin, et al. "Orbital changes, variation in solar activity and increased anthropogenic activities: controls on the Holocene flood frequency in the Lake Ledro area, Northern Italy." Climate of the Past Discussions 8, no. 5 (2012): 4701–44. http://dx.doi.org/10.5194/cpd-8-4701-2012.

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Abstract. Two lacustrine sediment cores from Lake Ledro in Northern Italy were studied to produce chronologies of flood events for the past 10 000 yr. For this purpose, we have developed an automatic method that objectively identifies the sedimentary imprint of river floods in the downstream lake basin. The automatic counting of flood deposits was based on colour data extracted from processed core photographs, and the count data were processed to capture the flood signal. Automatic quantification was compared with naked-eye counting. Counts were performed twice on the proximal and distal cores

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Zúñiga, Emmanuel, Víctor Magaña, and Violeta Piña. "Effect of Urban Development in Risk of Floods in Veracruz, Mexico." Geosciences 10, no. 10 (2020): 402. http://dx.doi.org/10.3390/geosciences10100402.

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Urban floods have adverse effects on the population and the economy, and they are increasing in frequency and magnitude. The State of Veracruz is the region of Mexico with the highest number of disasters, more than 50% of the total number nationwide, in the 1970–2015 period. During the 1990s, disasters in this region increased from 5 to 10 events per year, mostly in relation to intense rains and floods. This study analyzes the factors that increase the risk of urban floods in the regions: (i) the Pánuco River, (ii) the Papaloapan River, and (iii) the Coatzacoalcos River regions, combining haza

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Barrera-Escoda, A., and M. C. Llasat. "The role of climatic factors in evolving flood patterns in a Mediterranean Region (1301–2012)." Hydrology and Earth System Sciences Discussions 11, no. 8 (2014): 9145–82. http://dx.doi.org/10.5194/hessd-11-9145-2014.

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Abstract. Data on flood occurrence and flood impacts for the last seven centuries in the northeast Iberian Peninsula have been analysed in order to characterise long-term trends, anomalous periods and their relationship with different climatic factors such as precipitation, general circulation and solar activity. Catastrophic floods do not present a statistically significant trend, whereas extraordinary floods have seen a significant rise, especially from 1850 on, and were responsible for the total increase in flooding in the region. This rise can be mainly attributed to small coastal catchmen

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Czymzik, Markus, Raimund Muscheler, and Achim Brauer. "Solar modulation of flood frequency in central Europe during spring and summer on interannual to multi-centennial timescales." Climate of the Past 12, no. 3 (2016): 799–805. http://dx.doi.org/10.5194/cp-12-799-2016.

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Abstract. Solar influences on climate variability are one of the most controversially discussed topics in climate research. We analyze solar forcing of flood frequency in central Europe during spring and summer on interannual to multi-centennial timescales, integrating daily discharge data of the River Ammer (southern Germany) back to AD 1926 (∼ solar cycles 16–23) and the 5500-year flood layer record from varved sediments of the downstream Ammersee. Flood frequency in the River Ammer discharge record is significantly correlated to changes in solar activity when the flood record lags the solar

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Suzuki, Yoshiaki, Ryuji Tada, Kana Nagashima, et al. "Extreme flood events and their frequency variations during the middle to late-Holocene recorded in the sediment of Lake Suigetsu, central Japan." Holocene 31, no. 1 (2020): 121–33. http://dx.doi.org/10.1177/0959683620961497.

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Many studies are reconstructing flood records in the continental margins during the middle to late-Holocene. However, distinguishing the frequency and magnitude of flood events was difficult. Light gray event layers (GELs) in the sediment of Lake Suigetsu in Central Japan can solve this problem because they are recording the occurrence and magnitude of flood events during the last 80 years. Using these GELs, we aimed to reconstruct the frequency and magnitude of flood events during the last 8000 years. First, we verified whether GELs maintained the recording of flood events. We found that thin

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Barrera-Escoda, A., and M. C. Llasat. "Evolving flood patterns in a Mediterranean region (1301–2012) and climatic factors – the case of Catalonia." Hydrology and Earth System Sciences 19, no. 1 (2015): 465–83. http://dx.doi.org/10.5194/hess-19-465-2015.

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Abstract. Data on flood occurrence and flood impacts for the last seven centuries in the northeastern Iberian Peninsula have been analysed in order to characterise long-term trends, anomalous periods and their relationship with different climatic factors such as precipitation, general circulation and solar activity. Catastrophic floods (those that produce complete or partial destruction of infrastructure close to the river, and major damages in the overflowed area, including some zones away from the channels) do not present a statistically significant trend, whereas extraordinary floods (the c

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Fu, Xiaoran, Zhonggen Wang, Hongquan Sun, et al. "Spatio-Temporal Variation in Pluvial Flash Flood Risk in the Lhasa River Basin, 1991–2020." ISPRS International Journal of Geo-Information 13, no. 11 (2024): 387. http://dx.doi.org/10.3390/ijgi13110387.

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The analysis of temporal and spatial variability in risk has garnered significant research attention, particularly regarding flash flood disasters in the context of warming and wetting conditions on the Qinghai–Tibetan Plateau. Focusing on the Lhasa River basin, this study develops a framework that integrates geographic information systems and a combined subjective–objective weighting approach to comprehensively assess flash flood risk despite limited observations. This paper investigates the distribution patterns of hazard, vulnerability, and the integrated risk of pluvial flash floods; demon

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Rahmadi, Rahmadi, Eka Purnama Indah, and Arie Rakhman. "DEVELOPMENT OF A PHYSICAL ACTIVITY LEARNING MODEL MULTIMEDIA BASED IN FLOOD PROne AREAS." Riyadhoh : Jurnal Pendidikan Olahraga 6, no. 2 (2023): 202. http://dx.doi.org/10.31602/rjpo.v0i0.12945.

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The background to this research comes from a school that adapts to natural situations, where sometimes when the tide is high it will submerge the entire school yard, causing physical education learning activities to be hampered. Based on survey results from the past 2 years, there are indeed several schools in the Banjar Regency area that have been submerged by high tides/are prone to flooding. The aim of this research is to create a learning model that is suitable for use during high tide by testing several learning models that have been designed related to multimedia-based physical activitie

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Tang, Yihan, Shufeng Xi, Xiaohong Chen, and Yanqing Lian. "Quantification of Multiple Climate Change and Human Activity Impact Factors on Flood Regimes in the Pearl River Delta of China." Advances in Meteorology 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/3928920.

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Coastal flood regimes have been irreversibly altered by both climate change and human activities. This paper aims to quantify the impacts of multiple factors on delta flood. The Pearl River Delta (PRD), with dense river network and population, is one of the most developed coastal areas in China. The recorded extreme water level (m.s.l.) in flood season has been heavily interfered with by varied income flood flow, sea-level rise, and dredged riverbeds. A methodology, composed of a numerical model and the indexR, has been developed to quantify the impacts of these driving factors in the the PRD.

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Guo, Peng, Yingjie Wang, Yilin Yan, et al. "Assessing the Spatiotemporal Variations in the Hydrological Response of the Qin River Basin in Loess Plateau, China." Remote Sensing 16, no. 9 (2024): 1603. http://dx.doi.org/10.3390/rs16091603.

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In recent decades, the hydrological processes on the Loess Plateau have undergone significant changes due to the combined effects of climate change and human activities. This study investigates the Qin River basin, the core area of the Loess Plateau. Between 1971 and 2000, the hydrometeorology of the flood season in the Qin basin on the Loess Plateau in China changed abruptly in 1982 and 1992. This study uses distributed hydrologic modeling and statistical analysis to distinguish the spatial and temporal impacts of climate change and human activities. The fastest dynamic changes in land use oc

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16

Abou Rjeily, Yves, Oras Abbas, Marwan Sadek, Isam Shahrour, and Fadi Hage Chehade. "Flood forecasting within urban drainage systems using NARX neural network." Water Science and Technology 76, no. 9 (2017): 2401–12. http://dx.doi.org/10.2166/wst.2017.409.

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Abstract Urbanization activity and climate change increase the runoff volumes, and consequently the surcharge of the urban drainage systems (UDS). In addition, age and structural failures of these utilities limit their capacities, and thus generate hydraulic operation shortages, leading to flooding events. The large increase in floods within urban areas requires rapid actions from the UDS operators. The proactivity in taking the appropriate actions is a key element in applying efficient management and flood mitigation. Therefore, this work focuses on developing a flooding forecast system (FFS)

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17

Pears, Ben, Antony G. Brown, Phillip S. Toms, Jamie Wood, David Sanderson, and Richard Jones. "A sub-centennial-scale optically stimulated luminescence chronostratigraphy and late Holocene flood history from a temperate river confluence." Geology 48, no. 8 (2020): 819–25. http://dx.doi.org/10.1130/g47079.1.

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Abstract River confluences can be metastable and contain valuable geological records of catchment response to decadal- to millennial-scale environmental change. However, in alluvial reaches, flood stratigraphies are particularly hard to date using 14C. In this paper, we use a novel combination of optically stimulated luminescence and multiproxy sedimentological analyses to provide a flood record for the confluence of the Rivers Severn and Teme (United Kingdom) over the past two millennia, which we compare with independent European climate records. The results show that by ca. 2000 yr B.P., the

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18

Legrand, Caroline, Benoît Hingray, Bruno Wilhelm, and Martin Ménégoz. "Assessing downscaling methods to simulate hydrologically relevant weather scenarios from a global atmospheric reanalysis: case study of the upper Rhône River (1902–2009)." Hydrology and Earth System Sciences 28, no. 9 (2024): 2139–66. http://dx.doi.org/10.5194/hess-28-2139-2024.

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Abstract. We assess the ability of two modelling chains to reproduce, over the last century (1902–2009) and from large-scale atmospheric information only, the temporal variations in river discharges, low-flow sequences and flood events observed at different locations of the upper Rhône River catchment, an alpine river straddling France and Switzerland (10 900 km2). The two modelling chains are made up of a downscaling model, either statistical (Sequential Constructive Atmospheric Analogues for Multivariate weather Predictions – SCAMP) or dynamical (Modèle Atmosphérique Régional – MAR), and the

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19

Harper, Joel T., Neil F. Humphrey, W. Tad Pfeffer, Tyler Fudge, and Shad O’Neel. "Evolution of subglacial water pressure along a glacier’s length." Annals of Glaciology 40 (2005): 31–36. http://dx.doi.org/10.3189/172756405781813573.

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AbstractObservations from along the length of Bench Glacier, Alaska, USA, show that the subglacial water-pressure field undergoes a multiphase transition from a winter mode to a summer mode. Data were collected at the glacier surface, the outlet stream, and in a network of 47 boreholes spanning the length of the 7 km long glacier. The winter pressure field was near overburden, with low-magnitude (centimeter to meter scale) and long-period (days to weeks) variations. During a spring speed-up event, boreholes showed synchronous variations and a slight pressure drop from prior winter values. Diur

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Razjigaeva, N. G., L. A. Ganzey, T. A. Grebennikova, L. M. Mokhova, and T. A. Kopoteva. "Origin, age and development of mountain lakes of southern Far East during the Holocene monsoon variations." Limnology and Freshwater Biology, no. 4 (2022): 1538–40. http://dx.doi.org/10.31951/2658-3518-2022-a-4-1538.

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Abstract. A small mountain lakes-mire complex recorded in details Holocene environmental changes controlled by monsoon intensity and cyclogenesis activity. The reconstructions were based on multi-proxy studies (diatom, botanical and pollen analyses). We studied evolution of 8 lakes, located on different altitudes (from 320 to 1600 m). The studied lakes belong to four genetic types (on ancient basalt plateaus, depressions within large landslides on ancient volcano slopes and river valleys, and nival lakes on mountain peaks). Longest records (~9720 yr) of climatic changes was restored for East M

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Guiteras, Raymond, Amir Jina, and A. Mushfiq Mobarak. "Satellites, Self-reports, and Submersion: Exposure to Floods in Bangladesh." American Economic Review 105, no. 5 (2015): 232–36. http://dx.doi.org/10.1257/aer.p20151095.

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A burgeoning “Climate-Economy” literature has uncovered many effects of changes in temperature and precipitation on economic activity, but has made considerably less progress in modeling the effects of other associated phenomena, like natural disasters. We develop new, objective data on floods, focusing on Bangladesh. We show that rainfall and self-reported exposure are weak proxies for true flood exposure. These data allow us to study adaptation, giving accurate measures of both long-term averages and short term variation in exposure. This is important in studying climate change impacts, as p

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Rustomji, Paul. "Flood and drought impacts on the opening regime of a wave-dominated estuary." Marine and Freshwater Research 58, no. 12 (2007): 1108. http://dx.doi.org/10.1071/mf07079.

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Wave-dominated estuaries are affected by floods generated in their hinterland catchments as well as marine tide and wave processes. The interaction of these terrestrial and marine influences controls the opening regime of the estuary. Despite the well documented environmental pressures on estuaries including elevated nutrient loadings and abstraction of river flows, little research concerning the variability and controls on estuary mouth opening regimes exists. From water level observations of Tuross Lake estuary in south-eastern Australia, the estuary’s recent opening regime is reconstructed

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Yu, Ran, Barth F. Smets, Ping Gan, Allison A. MacKay, and Joerg Graf. "Seasonal and spatial variations in microbial activity at various phylogenetic resolutions at a groundwater – surface water interface." Canadian Journal of Microbiology 60, no. 5 (2014): 277–86. http://dx.doi.org/10.1139/cjm-2014-0048.

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We investigated the seasonal and spatial variation in activity and density of the metabolically active in situ microbial community (AIMC) at a landfill leachate-impacted groundwater – surface water interface (GSI). A series of AIMC traps were designed and implemented for AIMC sampling and microbial activity and density examinations. Measurements were made not only at the level of bacterial domain but also at the levels of alphaproteobacterial Rhizobiales order and gammaproteobacterial Pseudomonas genus, both of which included a large number of iron-oxidizing bacteria as revealed from previous

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Chan, John W. Y., and Ronald S. Burton. "Variation in Alcohol Dehydrogenase Activity and Flood Tolerance in White Clover, Trifolium repens." Evolution 46, no. 3 (1992): 721. http://dx.doi.org/10.2307/2409640.

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Chan, John W. Y., and Ronald S. Burton. "VARIATION IN ALCOHOL DEHYDROGENASE ACTIVITY AND FLOOD TOLERANCE IN WHITE CLOVER,TRIFOLIUM REPENS." Evolution 46, no. 3 (1992): 721–34. http://dx.doi.org/10.1111/j.1558-5646.1992.tb02078.x.

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Shevnina, Elena, Ekaterina Kourzeneva, Viktor Kovalenko, and Timo Vihma. "Assessment of extreme flood events in a changing climate for a long-term planning of socio-economic infrastructure in the Russian Arctic." Hydrology and Earth System Sciences 21, no. 5 (2017): 2559–78. http://dx.doi.org/10.5194/hess-21-2559-2017.

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Abstract. Climate warming has been more acute in the Arctic than at lower latitudes and this tendency is expected to continue. This generates major challenges for economic activity in the region. Among other issues is the long-term planning and development of socio-economic infrastructure (dams, bridges, roads, etc.), which require climate-based forecasts of the frequency and magnitude of detrimental flood events. To estimate the cost of the infrastructure and operational risk, a probabilistic form of long-term forecasting is preferable. In this study, a probabilistic model to simulate the par

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DAWSON, CHRISTIAN W., MARTIN R. BROWN, and ROBERT L. WILBY. "INDUCTIVE LEARNING APPROACHES TO RAINFALL-RUNOFF MODELLING." International Journal of Neural Systems 10, no. 01 (2000): 43–57. http://dx.doi.org/10.1142/s0129065700000053.

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Trying to model the rainfall-runoff process is a complex activity as it is influenced by a number of implicit and explicit factors — for example, precipitation distribution, evaporation, transpiration, abstraction, watershed topography, and soil types. However, this kind of forecasting is particularly important as it is used to predict serious flooding, estimate erosion and identify problems associated with low flow. Inductive learning approaches (e.g. decision trees and artificial neural networks) are particularly well suited to problems of this nature as they can often interpret underlying f

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Chen, Tsing-Chang, Jenq-Dar Tsay, Ming-Cheng Yen, and Jun Matsumoto. "Interannual Variation of the Winter Rainfall in Malaysia Caused by the Activity of Rain-Producing Disturbances." Journal of Climate 26, no. 13 (2013): 4630–48. http://dx.doi.org/10.1175/jcli-d-12-00367.1.

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Abstract Heavy rainfall/flood (HRF) cyclones contribute close to two-thirds of the total rainfall PT in both parts of Malaysia [peninsular Malaysia (M) and west Borneo (B)]. Judging by the rainfall variance produced by these cyclones and its correlation (~0.9) with the interannual PT variation, this variation is caused primarily by HRF cyclones through two factors: 1) their westward propagation properties and 2) their rain-producing efficiency. The former is regulated by the change of the cyclonic shear flow around the near-equator trough, while the latter is determined by the change of the co

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Wan, Zhiwei, Xi Chen, Min Ju, et al. "Streamflow Reconstruction and Variation Characteristic Analysis of the Ganjiang River in China for the Past 515 Years." Sustainability 12, no. 3 (2020): 1168. http://dx.doi.org/10.3390/su12031168.

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River flow reconstruction under the background of long-term climate change is of great significance for understanding the regional response to future drought and flood disasters, and the sustainable development of water resources. Investigating the basic characteristics and changing trends of the streamflow of the Ganjiang River is scientifically important to mitigate drought and flood disasters in the future. This study reconstructed drought and flood grade series of five regional stations of the Ganjiang River based on spatially explicit and well-dated local chronicle materials and used a li

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Montety, Laure de, Bernard Long, Gaston Desrosiers, Jean-François Crémer, Jacques Locat, and Georges Stora. "Utilisation de la scanographie pour l'étude des sédiments : influence des paramètres physiques, chimiques et biologiques sur la mesure des intensités tomographiques." Canadian Journal of Earth Sciences 40, no. 7 (2003): 937–48. http://dx.doi.org/10.1139/e03-027.

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In July 1996, a flash flood resulted in the input of 9 million m3 of sediment toward the Bay of Ha! Ha!, leading to the elimination, partly or totally, of the benthic fauna of the bay. In this study, the CT scanner has been used in a highly perturbed environment, the Bay of Ha! Ha!, to both assess (i) the relationships between the variations of tomographic intensities and the sedimentologic parameters of the sedimentary column and (ii) to quantify the biogenic structures resulting from the activity of benthic organisms. Compaction, CaCO3 contents, and granulometry of sediments are the most imp

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Danandeh Mehr, Ali, and Ozgun Akdegirmen. "Estimation of Urban Imperviousness and its Impacts on Flashfloods in Gazipaşa, Turkey." Knowledge-Based Engineering and Sciences 2, no. 1 (2021): 9–17. http://dx.doi.org/10.51526/kbes.2021.2.1.9-17.

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The paper examines flooding issues under rapid urbanization in Gazipasa city during the past seven years 2013-2019. The Storm Water Management Model (SWMM) integrated with the satellite images representing temporal variation in the land use and land cover (LULC) characteristics of the city were used to determine the variation in the runoff generation capacity, flood volume, and associated risks. The Google Earth software together with GIS technology were utilized to create and handle spatial data required for SWMM simulation. Standard design storm intensity derived from the local intensity-dur

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Csizmarik, Gábor, Ferenc Ligetvári, Csaba Juhász, and Péter Simándi. "Monitoring the oxygen level in the Szarvas-Kákafok Deadarm." Acta Agraria Debreceniensis, no. I (October 5, 2010): 170–73. http://dx.doi.org/10.34101/actaagrar/i/8397.

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The water quality of the Szarvas-Békésszentandrás Dead Körös is generally meso-eutrophic, and meso-saprobic. However, particularlyunder higher temperature conditions, the water body may change toward the eutrophic state, even algal blooms could be observedpreviously.The present measurements were conducted during a two week period, twice a day. Three water samples were taken horizontally, fromthe surface, bottom and the middle of the water body. The samples were examined in situ. The oxygen content, the temperature, the pH andthe conductivity were measured by potentiometric methods.Increasing p

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Scanlon, Annette T., and Sophie Petit. "Effects of site, time, weather and light on urban bat activity and richness: considerations for survey effort." Wildlife Research 35, no. 8 (2008): 821. http://dx.doi.org/10.1071/wr08035.

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To maximise bat retention in urban environments, efficient bat monitoring is needed, but the factors that influence survey results for urban bats are unclear. We used echolocation call detectors (n = 378 detector-nights from November 2005 to October 2006) to assess bat activity among different sites in the Adelaide City parklands, temporal variations in activity (hourly, nightly, monthly), and responses to weather and light (artificial and moon). Bat species did not occur evenly in urban conditions; dark parks were more important for bat diversity and activity (six species groups in the darkes

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I.S., Podymov, and Podymova T.M. "THE RESULTS OF RADON VARIATIONS MOINITORING INSIDE A PANEL BUILDING." ИННОВАЦИОННЫЕ НАУЧНЫЕ ИССЛЕДОВАНИЯ 2022. 6-2(20) (September 19, 2022): 43–50. https://doi.org/10.5281/zenodo.7093684.

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The article is devoted to the study of radon volumetric activity variations inside the room located at the 5th floor of a multi-storey panel structure (at the territory of Gelendzhik sity). Radon sources and their contribution to the radiological situation inside the building are considered. Have fixed increasing of radon concentration up to 70 Bq/m<sup>3</sup>, is associated with the seasonal ventilation regime of the premises. The time of increasing the radon concentration in the internal space to critical values under certain operating conditions of the structure is calculated. Investigatio

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Miller, Jerry R., Danvey Walsh, and Lionel F. Villarroel. "Use of Paleoflood Deposits to Determine the Contribution of Anthropogenic Trace Metals to Alluvial Sediments in the Hyperarid Rio Loa Basin, Chile." Geosciences 9, no. 6 (2019): 244. http://dx.doi.org/10.3390/geosciences9060244.

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Toxic trace metals are a common and significant contaminant in riverine ecosystems, and are derived from both natural and anthropogenic sources. Determining the contributions of metals from these sources has proven difficult, in part, because physical and biogeochemical processes alter the nature (e.g., grain size, mineral composition, organic matter content) of the source materials as they are transported through the drainage network. This study examined the use of paleoflood deposits located along the hyperarid Rio Salado, a tributary to the Rio Loa of northern Chile, to construct local back

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Zhang, Tongwen, Mamatkanov Diushen, Ermenbaev Bakytbek, et al. "Tree ring record of annual runoff for Issyk Lake, Central Asia." Journal of Water and Climate Change 10, no. 3 (2018): 610–23. http://dx.doi.org/10.2166/wcc.2018.232.

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Abstract Revealing hydrologic variations in the past is helpful to understand the dynamic changes and evolution of a given water body. The widespread long-lived spruce forests growing in the mountainous area around Issyk Lake in Central Asia provide a good opportunity for dendrohydrologic studies about that lake. A regional tree-ring width chronology developed for Picea schrenkiana was used to reconstruct 345-year annual runoff for Issyk Lake. Based on frequency of the wettest/driest years and decades, the 20th century was identified as having the most frequent hydrologic fluctuations among th

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Carlson, Claire Elizabeth, Paul A. Isihara, Roger Sandberg, et al. "Introducing PEARL." Journal of Humanitarian Logistics and Supply Chain Management 6, no. 2 (2016): 202–21. http://dx.doi.org/10.1108/jhlscm-07-2015-0031.

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Purpose – The need in disaster response to assess how reliably and equitably funding was accounted for and distributed is addressed by a standardized report and index applicable to any disaster type. The paper aims to discuss this issue. Design/methodology/approach – Data from the Nepal earthquake (2015), Typhoon Haiyan (2013), the Haiti earthquake (2010), Sri Lankan flood (2011), and Hurricane Sandy (2012) illustrate uses of a public equitable allocation of resources log (PEARL). Drawing from activity-based costing and the Gini index, a PEARL spreadsheet computes absolute inequity sector by s

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Davis, D. W., and J. C. Green. "Geochronology of the North American Midcontinent rift in western Lake Superior and implications for its geodynamic evolution." Canadian Journal of Earth Sciences 34, no. 4 (1997): 476–88. http://dx.doi.org/10.1139/e17-039.

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Volcanism in the Midcontinent rift system lasted between 1108 and 1086 Ma. Rates of flood-basalt eruption and subsidence in the western Lake Superior region appear to have been greatest at the beginning of recorded activity (estimated 5 km/Ma subsidence rate at 1108 Ma) and rapidly waned over a period of 1–3 Ma during a magnetically reversed period. The age of the paleomagnetic polarity reversal is now constrained to be between 1105 ± 2 and 1102 ± 2 Ma. A resurgence of intense volcanism began at 1100 ± 2 Ma in the North Shore Volcanic Group and lasted until 1097 ± 2 Ma. This group contains a c

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Turconi, Laura, Barbara Bono, Carlo Mambriani, Lucia Masotti, Fabio Stocchi, and Fabio Luino. "Natural and Anthropic Constraints on Historical Morphological Dynamics in the Middle Stretch of the Po River (Northern Italy)." Sustainability 17, no. 14 (2025): 6608. https://doi.org/10.3390/su17146608.

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Geo-historical information deduced from geo-iconographical resources, derived from extensive research and the selection of cartographies and historical documents, enabled the investigation of the natural and anthropic transformations of the perifluvial area of the Po River in the Emilia-Romagna region (Italy). This territory, significant in terms of its historical, cultural, and environmental contexts, for centuries has been the scene of flood events. These have characterised the morphological and dynamic variability in the riverbed and relative floodplain. The close relationship between man a

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Pacheco-Blas, Lucero, Gabriela González-González, and Alicia Ortega-Aguilar. "Sex-Related Variations in the Brain Motor-Network Connectivity at Rest during Puberty." Applied Sciences 13, no. 18 (2023): 10006. http://dx.doi.org/10.3390/app131810006.

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The development of functional neuroimaging technologies has resulted in a flood of mathematical models that investigate functional brain connections in health and disease. Motor network activity in the resting state and its response to puberty remains to be investigated. Variations between sexes in puberty may appear not just in brain regions involved in sexual and emotional activities, but also in cognitive and motor abilities that are active even when the individual is resting. The aim of this study was to investigate the interactions of the motor subnetwork in the resting state of healthy m

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Boaretto, Amanda Galdi, Darlene Gris, Jéssica Scherer, et al. "Chemotypic and Seasonal Variations in Essential Oils from Mespilodaphne cymbarum (Kunth) Trofimov and Their Antibacterial and Antibiofilm Activities." Plants 14, no. 13 (2025): 1939. https://doi.org/10.3390/plants14131939.

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This study investigated the essential oils (EOs) from leaf, bark, and fruit of Mespilodaphne cymbarum (Kunth) Trofimov (Lauraceae), focusing on their chemical composition and antimicrobial and antibiofilm activities. EOs were extracted from plants collected in the Amazon during dry and flood seasons and analyzed by gas chromatography–mass spectrometry. Although chemical differences were evident among plant organs and chemotypes, the influence of seasonality was not pronounced. Fruit EO was dominated by α- and β-santalene and limonene. Bark EO was rich in phenylpropanoids, including methyl euge

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Nour, Ali Mahamat, Masrabé Djimtolgar, and Galmai Orozi. "Inter-annual variation of the mean temperature and rainfall in Chad and the solar activity during the period from 1950 to 2020." Journal of Applied and Natural Science 15, no. 3 (2023): 1292–98. http://dx.doi.org/10.31018/jans.v15i3.4836.

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Given the increased variability of rainfall, the resurgence of extreme meteorological phenomena such as droughts, floods, heat waves, and violent winds and considering the influence of solar activity on certain meteorological parameters, a study on the variation of temperature and rainfall in relation to solar activity is necessary. The present study aimed to analyze the inter-annual evolution of meteorological parameters (mean temperature and rainfall) in Chad over the period from 1950 to 2020 in two geographically distinct areas (Sudanian and Sahelian zone) and then to establish a link betwe

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Gui, Shu, and Ruowen Yang. "Quasi-Biweekly Oscillation of the Bay of Bengal–East Asia–Pacific Teleconnection in Boreal Summer." Journal of Climate 33, no. 17 (2020): 7643–62. http://dx.doi.org/10.1175/jcli-d-19-0856.1.

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AbstractThe study reported in this paper used ERA-Interim reanalysis data to investigate the intraseasonal variability of the Bay of Bengal (BOB)–East Asia–Pacific teleconnection (BEAP) during the summer between 1979 and 2016. Over this period, the intraseasonal oscillation of the BEAP fell mainly within the quasi-biweekly oscillation (QBWO) band. Variations in atmospheric circulation and precipitation, which may contribute to extreme weather events, showed a significant correlation with the phase transition of the BEAP from the BOB to East Asia and the Pacific. The evolution of the BEAP–QBWO

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Picado, Ana, Joana Mendes, Rui Ruela, João Pinheiro, and João Miguel Dias. "Physico-Chemical Characterization of Two Portuguese Coastal Systems: Ria de Alvor and Mira Estuary." Journal of Marine Science and Engineering 8, no. 7 (2020): 537. http://dx.doi.org/10.3390/jmse8070537.

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The present study aims to research the physico-chemical processes in two under-researched coastal systems located on the west and south Portuguese coast—Mira Estuary and Ria de Alvor—through the development and exploitation of dedicated coupled physical and water quality models. Both systems are highly dynamic, supporting a wide range of biological diversity; however, they are characterized by distinct environmental and oceanographic conditions, enhancing the importance of a comparative approach. In this context, the Delft3D modeling suite was implemented and successfully calibrated and valida

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Greenwood, Charles, Arne Vogler, and Vengatesan Venugopal. "On the Variation of Turbulence in a High-Velocity Tidal Channel." Energies 12, no. 4 (2019): 672. http://dx.doi.org/10.3390/en12040672.

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This study presents the variation in turbulence parameters derived from site measurements at a tidal energy test site. Measurements were made towards the southern end of the European Marine Energy Centre’s tidal energy test site at the Fall of Warness (Orkney, Scotland). Four bottom mounted divergent-beam Acoustic Doppler Current Profilers (ADCPs) were deployed at three locations over an area of 2 km by 1.4 km to assess the spatial and temporal variation in turbulence in the southern entrance to the channel. During the measurement campaign, average flood velocities of 2 ms−1 were recorded with

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Han, MyeongHee, SungHyun Nam, and Hak-Soo Lim. "Regional Mean Sea Level Variability Due to Tropical Cyclones: Insights from August Typhoons." Journal of Marine Science and Engineering 12, no. 10 (2024): 1830. http://dx.doi.org/10.3390/jmse12101830.

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This study investigates the interannual variations in regional mean sea levels (MSLs) of the northeast Asian marginal seas (NEAMS) during August, focusing on the role of typhoon activity from 1993 to 2019. The NEAMS are connected to the Pacific through the East China Sea (ECS) and narrow, shallow straits in the east, where inflow from the southern boundary (ECS), unless balanced by eastern outflow, leads to significant convergence or divergence, as well as subsequent changes in regional MSLs. Satellite altimetry and tide-gauge data reveal that typhoon-induced Ekman transport plays a key role i

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Owen, Marc R., Robert T. Pavlowsky, and Derek J. Martin. "Spatial and Temporal Characteristics of Channel Disturbance Zones in Big River, Southeast Missouri (1937–2018)." Southeastern Geographer 64, no. 1 (2024): 30–53. http://dx.doi.org/10.1353/sgo.2024.a920706.

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abstract: Ozarks watersheds have responded to land clearing and settlement disturbances by transporting large amounts of gravel and sediment to main valleys of medium-large river systems. Historical gravel and sediment accumulate in disturbance zones, which are areas of excessive channel activity that can be detected over time using historical aerial photographs. This project uses a series of aerial photos from 1937–2018 to identify disturbance zones in the Big River of southeast Missouri, which has a history of lead mining and ore processing that has caused widespread contamination of the cha

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Leonardi, Federica, Teresa Botti, Giuliana Buresti, et al. "Radon Spatial Variations in University’s Buildings Located in an Italian Karst Region." Atmosphere 12, no. 8 (2021): 1048. http://dx.doi.org/10.3390/atmos12081048.

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In the framework of a collaboration between INAIL and University of Salento, an indoor radon survey in 54 buildings belonging to the UniSalento University (Southeast Italy) was carried out. The monitored buildings differ by type, construction period, materials, etc., and are located in an area with a morphology characterized mainly by marls, calcareous marls, and calcarenites (karst area). The sample of the survey includes 963 rooms at different floors: it consists in rooms mainly located at ground floor (67%), first floor (12%), and below ground (12%). SSNTD passive dosimeters measured the av

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Tsukada, Hirofumi, Takashi Saito, Takashi Hirayama, Hiroaki Matsuoka, and Atsushi Nakao. "Variation of 137Cs activity concentration in flood and pore water in paddy fields and its transfer to rice." Journal of Environmental Radioactivity 278 (September 2024): 107492. http://dx.doi.org/10.1016/j.jenvrad.2024.107492.

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Thorin, S., T. Robinet, P. Laffaille, and B. Vincent. "Shape and surface variations of syphon openings during complete tidal cycles in Mya arenaria in the intertidal zone." Journal of the Marine Biological Association of the United Kingdom 81, no. 3 (2001): 505–15. http://dx.doi.org/10.1017/s0025315401004155.

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Since the degree of syphonal opening can be an index of the pumping activity, the shape and the surface of syphon openings in Mya arenaria were filmed with an underwater camera at two stations in the middle of the intertidal zone. The individuals were perpendicularly oriented to the main current direction or parallel with the inhalant syphon upstream during flood tide, causing refiltration risks during ebb tide. The surface of the inhalant opening (SI) was strongly reduced with increasing current speeds. Its shape (XI) varied with the individual's orientation and had a tendency to become more

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