Notebook for retrieval of precipitation, air temperature, and snow water equivalent measurements at SNOTEL sites


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Resource type: Composite Resource
Storage: The size of this resource is 5.3 GB
Created: Jan 23, 2021 at 2:25 a.m.
Last updated: Feb 11, 2022 at 2:34 a.m.
DOI: 10.4211/hs.d1fe0668734e4892b066f198c4015b06
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Sharing Status: Published
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Downloads: 23
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Abstract

The notebooks in this resource have been developed to retrieve precipitation, air temperature, and snow water equivalent measured at Natural Resources Conservation Service (NRCS) SNOTEL sites by calling associated Consortium of Universities for the Advancement of Hydrologic Science, Inc (CUAHSI) web services.

Subject Keywords

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Western U.S.
North Latitude
50.0526°
East Longitude
-101.0094°
South Latitude
29.8250°
West Longitude
-126.1461°

Content

Readme.md

This resource has three folders: input, code, and output.

Input:

The input folder contains two CSV files.

  • SNOTEL_indices_at_NWM.csv: This file includes site information used in the scripts.

  • NRCS_SNOTEL_Joint_w_CEC.csv: This file includes information about SNOTEL station code, station latitude and longitude, and associated ecoregions provided by the Commission for Environmental Corporation (CEC).

Code:

The code folder contains three Jupyter Notebooks.

  • SNOTEL_Download_Retrieve_swe_p_snowdepth.ipynb: This notebook downloads the observed precipitation and snow water equivalent for SNOTEL sites within a specified ecoregion. The input NRCS_SNOTEL_Joint_w_CEC.csv. In this script, the main function changes the units from inch to mm. The results are CSV files for each variable for each ecoregion. For each variable, the outputs of this notebook are merged into one CSV file, which is available in the ./output folder.

  • SNOTEL_Download_Retrieve_temp.ipynb: This notebook downloads the observed air temperature data for SNOTEL sites within a specified ecoregion. The input NRCS_SNOTEL_Joint_w_CEC.csv. In this script, the main function changes the units from F to C. The results are CSV files for each variable for each ecoregion. For each variable, the outputs of this notebook are merged into one CSV file, which is available in the ./output folder.

  • SNOTEL_Pre-Processing.ipynb: This notebook uses the input file, called SNOTEL_indices_at_NWM.csv within the input directory, as well as the downloaded CSV files available at ./output/downloads to create a single file for each variable that includes site information and variable values. The outputs of this notebook are available at ./output/preprocessed.

Output:

The output folder contains two folders and one CSV file.

  • downloads folder: This folder contains three CSV files.

    • SNOTEL_P_all_sites.csv: The observed daily precipitation at SNOTEL sites, downloaded from https://www.hydroshare.org/resource/d1fe0668734e4892b066f198c4015b06/ and merged into one CSV file.
    • SNOTEL_SWE_all_sites.csv: The observed daily snow water equivalent at SNOTEL sites, downloaded from https://www.hydroshare.org/resource/d1fe0668734e4892b066f198c4015b06/ and merged into one CSV file.
    • SNOTEL_T_all_sites.csv: The observed daily average air temperature at SNOTEL sites, downloaded from https://www.hydroshare.org/resource/d1fe0668734e4892b066f198c4015b06/ and merged into one CSV file.
  • preprocessed folder: This folder contains three CSV files, which are outputs of the SNOTEL_Pre-Processing.ipynb jupyter notebook.

Related Resources

This resource is referenced by Garousi-Nejad, I. and Tarboton, D. (2022), "A comparison of National Water Model retrospective analysis snow outputs at snow telemetry sites across the Western United States", Hydrological Processes, https://doi.org/10.1002/hyp.14469
The content of this resource is derived from USDA Natural Resources Conservation Service Snow Telemetry SNOTEL Network, https://www.nrcs.usda.gov/wps/portal/wcc/home/aboutUs/snowProgramOverview/
This resource belongs to the following collections:
Title Owners Sharing Status My Permission
Data for a comparison of national water model retrospective analysis snow outputs at SNOTEL sites across the Western U.S. Irene Garousi-Nejad · David Tarboton  Published Open Access

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
Utah Water Research Laboratory Graduate Student Research Assistantship to I Garousi-Nejad
National Science Foundation Collaborative Research: SI2-SSI: Cyberinfrastructure for Advancing Hydrologic Knowledge through Collaborative Integration of Data Science, Modeling and Analysis OAC-1664061
National Science Foundation Collaborative Research: SI2-SSI: Cyberinfrastructure for Advancing Hydrologic Knowledge through Collaborative Integration of Data Science, Modeling and Analysis OAC-1664018
National Science Foundation Collaborative Research: SI2-SSI: Cyberinfrastructure for Advancing Hydrologic Knowledge through Collaborative Integration of Data Science, Modeling and Analysis OAC-1664119

How to Cite

Garousi-Nejad, I., D. Tarboton (2022). Notebook for retrieval of precipitation, air temperature, and snow water equivalent measurements at SNOTEL sites, HydroShare, https://doi.org/10.4211/hs.d1fe0668734e4892b066f198c4015b06

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

http://creativecommons.org/licenses/by/4.0/
CC-BY

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