https://data.amerigeoss.org/dataset/74adcb9c-c5ce-4049-8747-7136f230dd78
type: Dataset
title: Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Estimated Percent Presence of the Soil Restrictive Layers on Agricultural Land
description: This tabular data set represents the estimated percent presence of the soil restrictive layer on agricultural land 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 the "Estimates of the Soil Restrictive Layer in the Upper 25, 35, 45, and 55 centimeters of agricultural land in the conterminous United States" produced by the United States Geological Survey (Nakagaki and others, 2012). Units are percent. Reach catchment information characterizes data at the local scale. Reach catchments accumulated upstream through the river network characterizes cumulative upstream conditions. Network-accumulated values are computed using two methods, 1) divergence-routed and 2) total cumulative drainage area. Both approaches use a modified routing database to navigate the NHDPlus reach network to aggregate (accumulate) the metrics derived from the reach catchment scale. (Schwarz and Wieczorek, 2018).
keyword: amerigeo
keyword: amerigeoss
keyword: catchment
keyword: ckan
keyword: geo
keyword: geoss
keyword: inlandwaters
keyword: national
keyword: nawqa
keyword: nhdplus
keyword: north-america
keyword: soil-restrictive-layer
keyword: sparrow
keyword: ssurgo
keyword: united-states
keyword: usgs-572900afe4b0b13d3918aa64
issued: 2025-11-22T17:33:30.092977
modified: 20200821
theme: {geospatial}
contact point: Organization
  fn: Michael E. Wieczorek
spatial: Location

US Migrating
type: Agent

Original Metadata
type: Distribution
description: The metadata original format
media type: text/xml
format: XML
access URL: https://data.usgs.gov/datacatalog/metadata/USGS.572900afe4b0b13d3918aa64.xml
issued: 2022-08-07T09:00:23.948763
modified: 2025-11-22T17:33:30.083274

Digital Data
type: Distribution
description: Landing page for access to the data
media type: application/http
format: XML
access URL: https://doi.org/10.5066/F7765D7V
issued: 2022-08-07T09:00:23.948771
modified: 2025-11-22T17:33:30.083713