Found 22 datasets matching "Hydrologic alteration".
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The SSWP Indicators of Hydrologic Alteration Study is one of many relicensing documents for the South SWP (SSWP) Hydropower Project Number 2426. The California Department of Water Resources and...
Search relevance: 196.63 | Views last month: 0 -
Anthropogenic hydrologic alteration threatens the health of riverine ecosystems. This study assesses hydrologic alteration in the Pearl and Pascagoula river basins using modeled daily streamflow....
Search relevance: 154.06 | Views last month: 0 -
To identify the degree of hydrologic alteration of streams in the Mississippi Alluvial Plain (MAP), we used random forest (RF) regression methods (Breiman, 2001) to model the relation between six...
Search relevance: 153.70 | Views last month: 1 -
Two methods of calculating hydrologic alteration were applied to modeled daily streamflow data for 9,201 12-digit hydrologic unit code (HUC12) pour points draining to the Gulf of Mexico (Robinson...
Search relevance: 149.71 | Views last month: 0 -
Data provided from the Virginia Department of Environmental Quality (DEQ) including simulated values of 72 hydrologic metrics, or indicators of hydrologic alteration (IHA), 37 fish metrics, and 64...
Search relevance: 97.60 | Views last month: 0 -
Alterations to stream hydrology, which include changes in stream geomorphology, are primary impacts of anthropogenic disruption. In North Carolina, hydrological alterations lead to environmental...
Search relevance: 86.18 | Views last month: 0 -
The U.S. Geological Survey (USGS) developed a systematic, quantitative approach to prioritize candidate basins that can support the assessment and forecasting objectives of the major USGS water...
Search relevance: 76.18 | Views last month: 0 -
Changes to instream flow are known to be one of the major factors that affect the health of biological communities. Flow alteration can degrade physical habitat and alter water quality, reducing...
Search relevance: 61.83 | Views last month: 0 -
This data release includes datasets with annual streamflow statistics determined with the Indicators of Hydrologic Alteration software and R source code to create time-series plots with overlaid...
Search relevance: 58.04 | Views last month: 0 -
This data set includes 28 physical watershed attributes for each of 135,118 stream segments (National Hydrodraphy Dataset, Version 1) in California. These data were used to support a report...
Search relevance: 50.70 | Views last month: 1 -
This dataset provides numerical and categorical descriptions of 48 basin characteristics for 9,314 ungaged basins coinciding with 12-digit hydrologic unit code (HUC12) pour points that drain to...
Search relevance: 49.35 | Views last month: 0 -
Human alteration of waterways has impacted the minimum and maximum streamflow in more than 86% of monitored streams nationally and may be the primary cause for ecological impairment in river and...
Search relevance: 48.34 | Views last month: 0 -
This child item includes daily mean streamflow data obtained from the U.S. Geological Survey (USGS) National Water Information System database (https://doi.org/10.5066/F7P55KJN) and subsequently...
Search relevance: 47.82 | Views last month: 0 -
This dataset provides numerical and categorical descriptions of 48 basin characteristics for 956 basins with observed streamflow information at U.S. Geological Survey (USGS) streamflow-gaging...
Search relevance: 44.11 | Views last month: 0 -
The NFHAP Coastal Spatial Framework and Indicator Datasets consist of a geospatial base layer developed in ArcGIS, and associated data fields joined to the spatial framework. The Coastal Spatial...
Search relevance: 42.68 | Views last month: 0 -
Degraded physical habitat is a common stressor affecting river ecosystems and a primary focus of management activities, including stream restorations. In order to assess regional conditions and...
Search relevance: 34.24 | Views last month: 0 -
The U.S. Geological Survey (USGS) Lower Mississippi-Gulf Water Science Center (LMGWSC) in collaboration with the U.S. Environmental Protection Agency and funded through the Resources and...
Search relevance: 33.32 | Views last month: 2 -
Data available in Zenodo via doi: 10.5281/zenodo.16318572 Headwater streams play critical roles in hydrologic and biogeochemical processes and functions, yet their spatial distribution and land...
Search relevance: 32.77 | Views last month: 35 -
This dataset consists of daily streamflow percentiles for 1981-10-01 to 2020-03-31 relevant to streamflow drought defined using two approaches: Percentiles accounting for flow seasonality...
Search relevance: 31.85 | Views last month: 0 -
Data provided are the volumes of cypress cones, collected in the North American Baldcypress Swamp Network along the Mississippi River Alluvial Valley (southern Illinois to southern Louisiana, and...
Search relevance: 29.55 | Views last month: 0
