Climate-driven Shifts in Quantity and Seasonality of River Discharge over the past 1000 Years from the Hydrographic Apex of North America [PDF]
, 2008 Runoff generated from high elevations is the primary source of freshwater for western North America, yet this critical resource is managed on the basis of short instrumental records that capture an insufficient range of climatic conditions. Here we probe
Edwards, Thomas W.D. +6 more
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Sediment yields from small, steep coastal watersheds of California
Journal of Hydrology: Regional Studies, 2015 Study region: Coastal watersheds of southern California, United States. Study focus: We sought to better understand the rates and variability of suspended-sediment discharge from small coastal watersheds (
Jonathan A. Warrick +2 more
doaj +1 more source
Controls on spatial and temporal variations in sand delivery to salmonid spawning riffles [PDF]
, 2017 Fine sediment infiltration into gravel interstices is known to be detrimental to incubating salmonid embryos. Infiltration into spawning riffles can show large spatial variations at the scale of a morphological unit and over time, with significant ...
Milan, David
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Sediment traps with guiding channel and hybrid check dams improve controlled sediment retention [PDF]
Natural Hazards and Earth System Sciences, 2018 Sediment traps with partially open check dams are crucial elements for flood protection in alpine regions. The trapping of sediment is necessary when intense sediment transport occurs during floods that may endanger urban areas at downstream river ...
S. Schwindt +5 more
doaj +1 more source
Holocene Hydrological Changes Inferred from Alluvial Stream Entrenchment in North Tian Shan (Northwestern China) [PDF]
, 2004 We analyze the possible contribution of climate change or tectonics on fluvial incision from the study of a case example along the northern flank of Tian Shan.
Avouac, Jean-Philippe, Poisson, Blanche
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Shui kexue jinzhanDuring the sediment discharge period of a sandy river reservoir，a significant volume of low-temperature water is discharged along with the sediment. The outflow discharge can alter the downstream water temperature，potentially impacting aquatic organisms ...
Chen YANG +6 more
doaj +1 more source
Impact of climate change and anthropogenic activities on stream flow and sediment discharge in the Wei River basin, China [PDF]
Hydrology and Earth System Sciences, 2013 Reduced stream flow and increased sediment discharge are a major concern in the Yellow River basin of China, which supplies water for agriculture, industry and the growing populations located along the river. Similar concerns exist in the Wei River basin,
P. Gao +4 more
doaj +1 more source
Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans [PDF]
, 2014 The Greenland and Antarctic Ice Sheets cover ~\n10% of global land surface, but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets harbour highly productive coastal ecosystems, many of which are ...
Benning, Liane G. +9 more
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Study on Sediment Discharge of Watersheds from Reservoir Sedimentation.
Journal of Japan Society of Hydrology and Water Resources, 1998 近年,竣工したダム数の増加に伴って,貯水池の堆砂量データが次第に豊富となり,多様な解析が可能になってきている.本研究は,主として電力用貯水池の堆砂量データを検討し,その経年変化状況および堆砂の速度と,流域や貯水池の諸因子との関係を調べたものである.堆砂量の経年変化には種々のタイプがあり,貯水池上流端の背砂がこれに関係すると推定される.このため,背砂形成に関しての三角州や扇状地からの類推から,タイプに関わる流域や貯水池の説明因子を選定した.また,比堆砂量はタイプに応じて算定する必要があることを示した.タイプや比堆砂量に関わる要因分析の結果,従来から言われているように,これらの分析には重相関的な考察が必要である.本研究では,数量化法を用いて2,3の解析を試みたので,その結果を紹介する.
Yozo MIYAZAKI, Sotoaki ONISHI
openaire +2 more sources
Wind control on the accumulation of heavy metals in sediment of Lake Ulubat, Anatolia, Turkey [PDF]
, 2009 Freshwater Lake Ulubat (zmean = 1.5-2.0 m and Area = ~138 km2), NW Anatolia, Turkey was filled in by fine-to-medium-grain silts during the late Holocene.
Costa, PJM +8 more
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