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  4. Select Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Network Routed Upstream Watersheds for the Conterminous United States (ver. 4.0, August 2023)
  5. Select Land Cover Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Network Routed Upstream Watersheds for the Conterminous United States
  6. Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: NAWQA Wall-to-Wall Anthropogenic Land Use Trends (NWALT)

Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: NAWQA Wall-to-Wall Anthropogenic Land Use Trends (NWALT)

Dates

Publication Date
Start Date
1974
End Date
2012

Citation

Wieczorek, M.E., Jackson, S.E., and Schwarz, G.E., 2018, Select Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Network Routed Upstream Watersheds for the Conterminous United States (ver. 4.0, August 2023): U.S. Geological Survey data release, https://doi.org/10.5066/F7765D7V.

Summary

This tabular data set contains information on historic anthropogenic land use trends, compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. The source data is from the NAWQA Wall-to-Wall Anthropogenic Land Use Trends (NWALT) produced by James Falcone (USGS, 2015). The data provided here contains information for five time periods: 1974-1982-1992-2002-2012, compiled as described above. The units are percents. Reach catchment information characterizes data at the local scale. [...]

Contacts

Point of Contact :
Michael E Wieczorek, Maryland-Delaware-D.C. Water Science Center
Originator :
Michael E Wieczorek, Shannon E Jackson, Gregory E Schwarz
Metadata Contact :
Michael E Wieczorek
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
USGS Mission Area :
Water Resources
SDC Data Owner :
Maryland-Delaware-D.C. Water Science Center

Attached Files

Click on title to download individual files attached to this item.

NHDV2_NWALT_CONUS.xml
Original FGDC Metadata
View 		50.59 KB application/fgdc+xml
NWALT02_ACC_CONUS.zip 43.41 MB application/zip
NWALT02_CAT_CONUS.zip 36.99 MB application/zip
NWALT02_TOT_CONUS.zip 43.09 MB application/zip
NWALT12_ACC_CONUS.zip 43.58 MB application/zip
NWALT12_CAT_CONUS.zip 37.1 MB application/zip
NWALT12_TOT_CONUS.zip 43.27 MB application/zip
NWALT74_ACC_CONUS.zip 42.73 MB application/zip
NWALT74_CAT_CONUS.zip 36.74 MB application/zip
NWALT74_TOT_CONUS.zip 42.38 MB application/zip
NWALT82_ACC_CONUS.zip 43.14 MB application/zip
NWALT82_CAT_CONUS.zip 36.99 MB application/zip
NWALT82_TOT_CONUS.zip 42.8 MB application/zip
NWALT92_ACC_CONUS.zip 43.34 MB application/zip
NWALT92_CAT_CONUS.zip 37.05 MB application/zip
NWALT92_TOT_CONUS.zip 43.01 MB application/zip
58cadb5be4b0849ce97c8ad5_acc.parquet 182.64 MB application/octet-stream
58cadb5be4b0849ce97c8ad5_cat.parquet 133.69 MB application/octet-stream
58cadb5be4b0849ce97c8ad5_tot.parquet 185.2 MB application/octet-stream

Purpose

This data set was created by the U.S. Geological Survey's (USGS) National Water-Quality Assessment Project (NAWQA) which is part of the USGS National Water Quality Program (NWQP). This effort was undertaken to estimate anthropogenic land use information for five time periods: 1974-1982-1992-2002-2012 to NHDPlusV2 flowline catchments and upstream river networks to support statistical analysis, map display, and model parameterization.

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  • USGS Maryland, Delaware, and the District of Columbia Water Science Center

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