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Automated Method for Extracting Hydrologic Data to Estimate ET using the Regional Water Balance

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Type: Resource
Storage: The size of this resource is 61.8 MB
Created: Mar 10, 2022 at 7:11 p.m.
Last updated: Apr 23, 2022 at 8:43 p.m.
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Content types: Single File Content  Geographic Feature Content  Geographic Raster Content 
Sharing Status: Public
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The purpose of this resource is to automate extraction of discharge data from the United States Geological Survey (USGS) National Water Information System (NWIS) (, precipitation from PRISM Climate Group database (, and evapotranspiration from the OpenET databases ( This resource is part of a semester project for the USU CEE 6110: Hydroinformatics class (Spring 2022).

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Logan River Watershed
North Latitude
East Longitude
South Latitude
West Longitude


Start Date:
End Date:


This resource includes the following:

  1. A digital elevation model (LoganDEM)
  2. The pour point latitude and longitude coordinates (LoganOutletUSGSgage)
  3. 1_TauDEMDelineation.ipynb This notebook uses the digital elevation model (LoganDEM) and the pour point coordinates to delineate the watershed

  4. 2_Collection_of_Precipitation_and_streamflow_data.ipynb This notebook aims to download precipitation data from the PRISM database, streamflow data from USGS NWIS database, and evapotranspiration data from the OpenET database. The notebook also calculates evapotranspiration rates using the simplified water balance model (ET = P -Q) and compares them to the OpenET evapotranspiration rates.

  5. 3_Data_Analysis.ipynb This notebook aims to plot precipitation, discharge, and calculated evapotranspiration data. The notebook also used to calculate watershed the runoff ratio.

  6. SampleOutcomes This folder contains sample precipitation and OpenET evapotranspiration data that were retrieved for the Logan River Watershed located in the north-central part of the US State of Utah. The folder also includes the Logan River Watershed annual precipitation, discharge, and calculated evapotranspiration rates.

    • SamplePRISMPrecipitationData.csv
    • SampleOpenETData.csv
    • Precipitation_Discharge_Evapotranspiration.csv
  7. A Referenced content file This file redirects to the resource ( where the first notebook (1_TauDEMDelineation.ipynb) were taken from.

Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

Related Resources

How to Cite

White, S., M. Abualqumboz (2022). Automated Method for Extracting Hydrologic Data to Estimate ET using the Regional Water Balance, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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