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Catalog datasets represent a fraction of data in use by active WMA projects. The team is working on including more datasets to provide a complete view of data-in-use. Let us know how your experience is!

Datasets

E2NHDPlusV2_us: Database of Ancillary Hydrologic Attributes and Modified Routing for NHDPlus Version 2.1 Flowlines

Domain: Hydrology

Variables: Modified routing for NHDPlus Version 2.1 Flowlines; Hydrologic attributes

Spatial Resolution: 1:100,000

Temporal Frequency: NA

Temporal Coverage: NA

Spatial Extent: CONUS

Source: USGS

Access:

Description:

These data represent a topologically reconditioned version of the medium-resolution NHDPlus routing network, including enhanced attributes to improve flow routing and the physical description of flowlines. The modifications pertain only to NHDPlus data table values; no physical changes were made to the spatial locations of flowlines or catchments. The approach assumes the pre-existence of the NHDPlus network and its attributes, although many of the attributes can be generated without reference to existing values. The enhanced dataset, named E2NHDPlusV2_us, represents a national framework useful for the hydrologic referencing of spatial data, and is an extension of the work in Schwarz and Wieczorek, 2018. The data are useful to hydrologic modeling, such as the SPARROW water-quality model, and other analyses relating spatial features to hydrologic data.

Citation:

Schwarz, G.E., 2019, E2NHDPlusV2_us: Database of Ancillary Hydrologic Attributes and Modified Routing for NHDPlus Version 2.1 Flowlines: U.S. Geological Survey data release, https://doi.org/10.5066/P986KZEM

Linked Catalog Usecases: