Predicting Turbidity Events from Winter Climate Variability in the Bull Run Watershed, Mount Hood National Forest, Oregon PDF Download
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Author: Nancee Christine Hunter
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 182
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Book Description
Author: Nancee Christine Hunter
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 182
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Book Description
Author: United States. Forest Service
Publisher:
ISBN:
Category : Bull Run River Watershed (Or.)
Languages : en
Pages :
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Book Description
Author: United States. Forest Service
Publisher:
ISBN:
Category : Bull Run River Watershed (Or.)
Languages : en
Pages : 80
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Author:
Publisher:
ISBN:
Category : Hysteresis
Languages : en
Pages : 34
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Book Description
Frequent intense precipitation events can mobilize and carry sediment and pollutants into rivers, degrading water quality. However, how seasonal rainfall and land cover affect the complex relationship between discharge and turbidity in urban watersheds is still under investigation. Using hourly discharge, rainfall, and turbidity data collected from six stations in three adjacent watersheds between 2008 and 2017, we examined the temporal variability of the discharge-turbidity relationship along an urban-rural gradient. We quantified hysteresis between normalized discharge and turbidity by a Hysteresis Index (HI) and classified hysteresis loops during 377 storm events in early, mid, and late wet season. Hysteresis loop index and direction varied by site land cover type and season. Turbidity values peaked quicker in the watersheds with higher degrees of urban development than a less urbanized watershed. The positive relation between discharge and turbidity was highest in two downstream stations in the mid wet season, while it was highest in two upstream stations in the early wet season. Correlation and regression analysis showed that maximum turbidity was best explained by discharge range, and the sensitivity of turbidity to discharge change was higher in the larger downstream watershed than in the small upstream watersheds. A flashiness index was negatively associated with the slope of turbidity versus discharge, suggesting that turbidity is difficult to predict solely based on discharge in flashy urban streams. This paper contributes to a deeper understanding of the spatial and temporal variation of discharge-concentration relationship in urbanizing watersheds, which can help water managers increase the resiliency of water-related ecosystem services to impacts of climate change.
Author: Daniel T. Snyder, Dorie L. Brownell
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Author: George Barr
Publisher:
ISBN:
Category : Bull Run River Watershed (Or.)
Languages : en
Pages :
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Author: Kristen Brittan Averyt
Publisher:
ISBN:
Category : Climatic changes
Languages : en
Pages : 23
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Book Description
The USFS Rocky Mountain Research Station, in collaboration with USFS Region 2 and NOAA hosted the Western Watersheds and Climate Change: Water and Aquatic System Tools workshop on November 17-19, 2009 in Boulder, Colorado. This workshop, funded by the FY08 Forest Service Global Change Program, brought together 25 USFS National Forest (NF) staff working in western water and aquatic ecosystems, and 19 scientists from both other agencies and the academic community. The purpose of the workshop was to begin a dialogue among USFS managers and scientists about knowledge and tools that are currently available or needed to address water and climate change. The suite of responses to the pre-workshop evaluation questions about the use of climate information in decision-making supports the need for training on the time scales of climate variability and change, and further instruction about available resources and information to support informed decision-making."
Author: Frank A. Rinella
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Book Description
Author: Intergovernmental Panel on Climate Change / Working Group Technical Support Unit
Publisher:
ISBN: 9789291691234
Category : Climatic changes
Languages : en
Pages : 200
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Book Description
The Technical Paper addresses the issue of freshwater. Sealevel rise is dealt with only insofar as it can lead to impacts on freshwater in coastal areas and beyond. Climate, freshwater, biophysical and socio-economic systems are interconnected in complex ways. Hence, a change in any one of these can induce a change in any other. Freshwater-related issues are critical in determining key regional and sectoral vulnerabilities. Therefore, the relationship between climate change and freshwater resources is of primary concern to human society and also has implications for all living species. -- page vii.
Author: Julie Koppel Maldonado
Publisher: Springer
ISBN: 3319052667
Category : Science
Languages : en
Pages : 178
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Book Description
With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked to climate change. Traditional ecological knowledge and tribal experience play a key role in developing future scientific solutions for adaptation to the impacts. The book explores climate-related issues for indigenous communities in the United States, including loss of traditional knowledge, forests and ecosystems, food security and traditional foods, as well as water, Arctic sea ice loss, permafrost thaw and relocation. The book also highlights how tribal communities and programs are responding to the changing environments. Fifty authors from tribal communities, academia, government agencies and NGOs contributed to the book. Previously published in Climatic Change, Volume 120, Issue 3, 2013.
