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Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
Multiple partners working together developed a multiscale approach for assessing the geomorphic sensitivity of streams and ecological resilience of riparian ecosystems, including meadows, in upland watersheds of the Great Basin to disturbances and management actions. The approach builds on long-term work by the research and management partners on the geomorphic sensitivity and ecological resilience of these systems to stressors and disturbances. At the core of the assessments is information on past and present watershed and stream channel characteristics, geomorphic and hydrologic processes, and riparian and meadow vegetation characteristics. In this report, we describe the approach used to delineate Great Basin mountain ranges and the watersheds within them, and the watershed-scale data collected for the individual watersheds. We also describe the database of the variables collected for the individual watersheds and provide the data sources. Finally, we provide summary information on the characteristics of the regions and watersheds within the region and the implications for assessments of geomorphic sensitivity and ecological resilience. The target audience for the multiscale approach for assessing geomorphic sensitivity and ecological resilience is managers and stakeholders interested in assessing and adaptively managing Great Basin stream systems and riparian and meadow ecosystems. Anyone interested in delineating the mountain range and watersheds within the Great Basin or quantifying the characteristics of the watersheds will be interested in this report. https://www.fs.fed.us/rmrs/projects/multi-scale-resilience-based-framework-restoring-and-conserving-great-basin-wet-meadows-and
The polygons in this layer delineate headwater-to-saltwater drainage basins and hydrologic units within the Southeast Alaska Drainage Basin (SEAKDB). The SEAKDB encompass the entire land area that drains into the Gulf of Alaska through the Southeast Alaska panhandle. This land area includes the entire Alexander Archipelago, mainland southeast Alaska, northwest British Columbia, and southwest Yukon Territory.
Using the common field WS_ID, the attribute table in this GIS layer can be joined to the Runoff_and_DOC sheet in SEAKDB_watersheds_runoff_DOC.xlsx to display the results of Edwards et al. (2020; Table S4).
Edwards, R. T., D'Amore, D. V., Biles, F. E., Fellman, J. B., Hood, E. W., Trubilowicz, J. W., & Floyd, W. C. (2020). Riverine Dissolved Organic Carbon and Freshwater Export in the Eastern Gulf of Alaska. In Press.
The watershed boundaries in this dataset were modified from: Biles, F. E. 2012. USFS Southeast Alaska Drainage Basin (SEAKDB) Watersheds. http://hub.arcgis.com/datasets/seakgis::usfs-southeast-alaska-drainage-basin-seakdb-watersheds
The following modifications were made to the original Biles (2012) watershed dataset:
1) The watershed boundary for the Taku River was split at USGS streamgage 15041200
2) The watershed boundary for the Stikine River was split at USGS streamgage 15024800 (U.S. Geological Survey, 2018).
The following describes the construction of the watershed boundaries and is the metadata from the original Biles (2012) dataset.
All geoprocessing was performed using ESRI ArcGIS version 9.3.1 or 10.x. This data set was derived from 4 main sources: 1) The United States Geological Survey's (USGS) digital Watershed Boundary Dataset (WBD). The boundaries in the WBD were mapped at the subwatershed (12-digit) 6th level ("HUC12"). Citation for this data source: Coordinated effort between the United States Department of Agriculture-Natural Resources Conservation Service (USDA-NRCS), the United States Geological Survey (USGS), and the Environmental Protection Agency (EPA). The Watershed Boundary Dataset (WBD) was created from a variety of sources from each state and aggregated into a standard national layer for use in strategic planning and accountability. Watershed Boundary Dataset for Alaska. Available URL: "http://datagateway.nrcs.usda.gov" [Accessed March 9, 2012]. 2) British Columbia's Corporate Watershed Base (CWB) Freshwater Atlas Watershed Groups digital dataset (FWWTRSHDGR), downloaded from GeoBC on 3/14/2012. This site has since been replaced by DataBC. Freshwater Atlas documentation can be downloaded from ftp://ftp.geobc.gov.bc.ca/pub/outgoing/FreshWaterAtlasDocuments/FWAv1.3-SDE. WarehouseModelSpecification.rev3.doc. Metadata details can be found at https://apps.gov.bc.ca/pub/geometadata/metadataDetail.do. 3) At the USGS HUC8 (8-digit) and Canada NHN 4-digit drainage levels (CAN4), trans US-Canada watershed boundaries are consistent with the US-Canada hydrographic data harmonization revisions made as of 11/29/2012 (http://datagateway.nrcs.usda.gov). See nhd.usgs.gov/Canada-US_Hydro_Harmonization.pdf for more information on this project. 4) At drainage levels finer than HUC8/CAN4, screen digitizing was used to match up watershed boundaries crossing the Canada-US boundary. The best of available source material was used for digitizing, including contours generated from USGS 2-arc second (~50 meter) NED DEMS, SPOT 20-meter DEMs, Environment Yukon 30-meter DEMs, and BC TRIM 25-meter DEMs; Tongass National Forest color and black and white orthophotography, satellite imagery obtained from the US Forest Service, Google Earth satellite imagery, and 1:63,360 USGS topographic maps.
After a seamless watershed coverage was created using the above 4 sources, subbasins were "aggregated up" (i.e., merged) to depict entire headwater to saltwater drainages. Watersheds were clipped using an Identity operation to an approximate mean high water (MHW) shoreline where NOAA National Shoreline data (through 2011) existed. Where NOAA MHW data was absent, the high water line is represented using other shoreline digital data sources from the US Forest Service (feature class "Intertidal_PL", description=LND) and the US National Park Service (shapefile "HHTide"), and the US National Hydrography Dataset (NHD). In addition, heads up digitizing was necessary where shore resources were absent, of poor quality, or where the previously listed sources needed to be edge-matched. Data sources for digitizing include the US DEMs and orthophotos listed above under #4, 30-meter ASTER DEMs, Google Earth imagery, and US Forest Service 1:15,840 aerial photography stereo-pairs. As a result of clipping the WBD to a MHW shoreline, small areas around a watershed outlet may be excluded from the drainage boundary. In addition, some watersheds may include small remnant areas from adjacent watersheds near the outlet. All multi-part features were converted to single-part. Island polygons less than 10 hectares were deleted. All islands less than 100 hectares are considered a single watershed. If islands less than 100 hectares were mapped in the WBD as more than one watershed, the boundaries were merged. Note that many drainages along the coastal fringe do not meet the WBD 12-digit minimum mapping size criteria of 40.5 sq km. In the WBD (and in this dataset) these smaller watersheds are not represented as classic, single-outlet watersheds, but are instead lumped into single hydrologic units that can range up to approximately 162 sq km.
UPDATE, 5/11/2017: Portions of the Alsek drainage boundary were edited using updated digital boundaries obtained from Janet Curran at the USGS. The updates were a part of a flood frequency report (USGS SIR 2016-5024) and StreamStats project.