U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

HyG: A hydraulic geometry dataset derived from historical stream gage measurements across the conterminous US



Details

  • Journal Title:
    Scientific Data
  • Personal Author:
  • NOAA Program & Office:
  • Description:
    Regional- and continental-scale hydrologic models are increasingly important forecasting tools, yet they rely on highly variable channel parameters (e.g. width, depth, hydraulic resistance) that remain unquantified for millions of stream reaches across the country. Existing hydrologic models utilize over-simplified channel geometries that directly impact the accuracy of streamflow estimates, with cascading effects for water resource and hazard prediction. Here, we present a hydraulic geometry dataset, termed ‘HyG’, derived from discharge field measurements at U.S. Geological Survey (USGS) stream gages across the conterminous United States (CONUS). The HyG dataset includes (1) at-a-station hydraulic geometry parameters, (2) at-a-station hydraulic resistance (Manning’s n) calculated from the Manning equation, (3) daily discharge percentiles, and (4) regionalized downstream hydraulic geometry parameters based on HUC4 (Hydrologic Unit Code 4), derived from a total of 4,051,682 individual measurements from 66,841 total gages. The regionalized HyG dataset can be used directly to improve channel representations in models over CONUS. The original HyG relationships can also be regionalized for finer scales if required.
  • Source:
    Scientific Data, 11(1)
  • DOI:
  • ISSN:
    2052-4463
  • Format:
    pdf
  • Publisher:
    Springer Science and Business Media LLC
  • Document Type:
    Journal Article
  • Funding:
    Grant no. NA18OAR4590391
  • License:
  • Rights Information:
    CC BY-NC-ND
  • Compliance:
    Library
  • Main Document Checksum:
    urn:sha-512:d0065153cab7441bb646636a6ad3fead561ddda37d7a315ee739ab776e242b4c2bb2856dd100b3ff2a429a65a1e81dbd633f69571396e090dd183ae9a2bb1f3c
  • Download URL:
  • File Type:
    Filetype[PDF - 6.58 MB ]
PREVIOUS
ON THIS PAGE
Details
The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP