Supporting Data for Estimating Selected Low-Flow Frequency Statistics and Mean Annual Flow for Ungaged Locations on Streams in Alabama (ver. 1.1, November 2020)
Dates
Publication Date
2020-09-21
Time Period
2014-03-30
Last Revision
2020-11-30
Citation
Kolb, K.R., Clark, J.M., Feaster, T.D., and Painter, J.A., 2020, Supporting data for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations on streams in Alabama (ver. 1.1, November 2020): U.S. Geological Survey data release, https://doi.org/10.5066/P994UFS7.
Summary
Streamflow data and statistics are vitally important for proper protection and management of both the water quality and water quantity of Alabama streams. Such data and statistics are available at U.S. Geological Survey streamflow-gaging stations, also referred to as streamgages or stations, but are often needed at ungaged stream locations. To address this need, the U.S. Geological Survey, in cooperation with numerous Alabama State agencies and organizations, developed regional regression equations for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations in Alabama that are not substantially affected by tides, regulation, diversions, or other anthropogenic influences. This data release comprises [...]
Summary
Streamflow data and statistics are vitally important for proper protection and management of both the water quality and water quantity of Alabama streams. Such data and statistics are available at U.S. Geological Survey streamflow-gaging stations, also referred to as streamgages or stations, but are often needed at ungaged stream locations. To address this need, the U.S. Geological Survey, in cooperation with numerous Alabama State agencies and organizations, developed regional regression equations for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations in Alabama that are not substantially affected by tides, regulation, diversions, or other anthropogenic influences. This data release comprises the geographic information systems (GIS) layers and tabular data used to create the new low-flow and mean annual flow regression equations and implement them for the U.S. Geological Survey StreamStats application (https://streamstats.usgs.gov).
Click on title to download individual files attached to this item.
metadata_for_supporting_data_for_alabama_low_flows.xml “Metadata for Supporting Data for Alabama Low Flows and Mean Annual Flow” Original FGDC Metadata
View
38.79 KB
application/fgdc+xml
l3_se_plns.zip “Southeast Plains Level III Ecoregion raster for Alabama StreamStats”
2.79 MB
application/zip
precpris10.zip “Mean Annual Precipitation Raster for Alabama StreamStats”
67.86 MB
application/zip
l3_piedmnt.zip “Piedmont Level III Ecoregion raster for Alabama StreamStats”
1.52 MB
application/zip
al_svi2020.zip “Stream Variability Index raster for Alabama StreamStats”
168.81 MB
application/zip
al_low_flow_region_2020.zip “Region shapefile for Alabama low flow and mean annual flow equations”
912.39 KB
application/zip
Table_3_Streamgages_independent_and_dependent_variables_used_in_the_regressions.csv “Table 3 from the Low-Flow and Mean Ann. Flow for Ungaged Locations on AL Streams”
26.86 KB
text/csv
Version_History_Supporting_Data_Estimating_Low-Flows_Alabama_v1_1.txt “Version History for Version 1.1”
799 Bytes
text/plain
Related External Resources
Type: Related Primary Publication
Feaster, T.D., Kolb, K.R., Painter, J.A., and Clark, J.M., 2020, Methods for estimating selected low-flow frequency statistics and mean annual flow for ungaged locations on streams in Alabama (ver. 1.1, November 20, 2020): U.S. Geological Survey Scientific Investigations Report 2020–5099, 21 p., https://doi.org/10.3133/sir20205099.
The regional regression equations developed from this investigation will be incorporated into the U.S. Geological Survey StreamStats application for Alabama. StreamStats is a Web-based geographic information system application that delineates drainage basins at selected stream locations and then generates the needed basin characteristics for available regional regression equations. Along with the low-flow frequency equations developed in this investigation, the Alabama StreamStats application also has regional regression equations for estimating flood-frequency statistics at rural and urban stream locations on Alabama streams. The geospatial data were created for the purpose of Alabama StreamStats, and were not designed for use in other applications.
Revision 1.1 by Katharine Kolb on November 30, 2020. To review the changes that were made, see “Version_History_Supporting_Data_Estimating_Low-Flows_Alabama_v1_1.txt” in the attached files section.
