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SWE Estimation Application of National Snow Model. Python script and estimations for the Upper Colorado River Basin Water Year 2022


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Type: Resource
Storage: The size of this resource is 172.7 MB
Created: Jul 26, 2023 at 6:55 p.m.
Last updated: Sep 05, 2023 at 6:24 p.m. (Metadata update)
Published date: Sep 05, 2023 at 6:24 p.m.
DOI: 10.4211/hs.56bd02c71ebe447a844758898e675bad
Citation: See how to cite this resource
Content types: Geographic Feature Content 
Sharing Status: Published
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Abstract

Directory of files to perform historical and near-to-date regional snow water equivalent (SWE) estimates across the Western United States. Estimates are performed by the large-scale, machine-learning National Snow Model (https://github.com/AlabamaWaterInstitute/National-Snow-Model) which was trained on historical in-situ snow observations from 2013-2019.
This resource contains Python scripts to produce SWE estimates for a region defined by a user-input shapefile at 1-km resolution. The model is ready to run "out-of-the-box" upon download provided the directory structure is maintained; the user must only provide a shapefile of the region of interest. Estimates are saved in the submission_format_DATE.csv and may be joined with geographical location information in ..._Geo_df.csv. Detailed descriptions of function arguments can be found in the Region_SWE.py file. Note that pre-processing and estimation of large regions is computationally and memory intensive and high-performance computing is recommended for such areas. Smaller regions may easily be executed on a personal machine.

This resource also contains weekly SWE simulations of water year 2021-22 for the Upper Colorado River Basin. This is a preliminary estimate that has not been cross-validated. It is provided as an example of model application.

***This is a preliminary research product and its results should not be used for operational purposes. The National Snow Model is undergoing constant performance and functionality improvement and validation testing.***

Funding for this project was provided by the National Oceanic and Atmospheric Administration (NOAA), awarded to the Cooperative Institute for Research to Operations in Hydrology (CIROH) through the NOAA Cooperative Agreement with The University of Alabama, NA22NWS4320003.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
43.4445°
East Longitude
-105.6300°
South Latitude
35.5637°
West Longitude
-112.3237°

Temporal

Start Date:
End Date:

Content

Readme.txt

Requires Pyton 3.9 or higher
Required packages and libraries can be found in National_Snow_Model_Regional.py and Regional_SWE.py

------Description-----

This resource contains Python scripts to produce SWE estimates for a region defined by a user-input shapefile at 1-km resolution. The model is ready to run "out-of-the-box" upon download provided the directory structure is maintained; the user must only provide a shapefile of the region of interest. 

Estimates are saved in the submission_format_DATE.csv and may be joined with geographical location information in ..._Geo_df.csv. 

Detailed descriptions of function arguments can be found in the Region_SWE.py file. Note that pre-processing and estimation of large regions is computationally and memory intensive and high-performance computing is recommended for such areas. Smaller regions may easily be executed on a personal machine. 

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.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Oceanic and Atmospheric Administration (NOAA) NA22NWS4320003

How to Cite

Liljestrand, D., R. Johnson, C. Oroza, S. M. Skiles (2023). SWE Estimation Application of National Snow Model. Python script and estimations for the Upper Colorado River Basin Water Year 2022, HydroShare, https://doi.org/10.4211/hs.56bd02c71ebe447a844758898e675bad

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

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

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