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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 Soil Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Network Routed Upstream Watersheds for the Conterminous United States
  6. STATSGO Soil Characteristics
  7. Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Soil pH

Attributes for NHDPlus Version 2.1 Reach Catchments and Modified Routed Upstream Watersheds for the Conterminous United States: STATSGO Soil Characteristics, Soil pH

Dates

Publication Date
Start Date
1971
End Date
2000

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 represents the soil pH as processed from STATSGO2 database 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. The source data was produced by the United States Geological Survey (Wieczorek, 2019). Soil pH units are approximately the negative of the base 10 logarithm of the molar concentration, measured in units of moles per liter, of hydrogen ions. This dataset can be linked to the NHDPlus version 2 data suite by the unique identifier COMID. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream [...]

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_STATSGO2_pH_Final.xml
Original FGDC Metadata
View 		22.59 KB application/fgdc+xml
STATSGO2_pH_CONUS.zip 14.83 MB application/zip
Untitled.jpg
“CONUS pH” 		thumbnail 4.26 MB image/jpeg
584b0401e4b07e29c706de59_acc.parquet 14.94 MB application/octet-stream
584b0401e4b07e29c706de59_cat.parquet 14.35 MB application/octet-stream
584b0401e4b07e29c706de59_tot.parquet 14.99 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 soil pH for NHDPlusV2 flowline catchments and upstream river networks to support statistical analysis, map display, and model parameterization.
CONUS pH
CONUS pH

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Communities

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

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