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Oklahoma Soil Moisture Predictions


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Created: Feb 07, 2020 at 3:12 p.m.
Last updated: Feb 07, 2020 at 6:22 p.m. (Metadata update)
Published date: Feb 07, 2020 at 6:22 p.m.
DOI: 10.4211/hs.f0091cf90bcc4487bf401ca19783d1eb
Citation: See how to cite this resource
Content types: Geographic Raster Content 
Sharing Status: Published
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Abstract

Monthly soil moisture predictions over a region of interest centered on Oklahoma and surrounded areas from January 2000 to September 2012. Data were acquired from the European Space Agency Climate Change Initiative soil moisture product version 4.5, 0.25-degrees spatial resolution. The modeled product aims to fill soil moisture spatial gaps from the original product over the region of Interest. Soil moisture values were calculated based on three methods, e.g. Ordinary Kriging, Regression Kriging and Generalized Linear Model. Reference monthly soil moisture layers were generated based on daily soil moisture estimates over each 0.25-degrees pixel in the region of interest. Three different sampling approaches were considered to model soil moisture estimates, using 100% of available data from the original satellite data, 75% and 50% of available soil moisture estimates respectively. Data were randomly removed to simulate different scenarios of gap presence in the original ESA CCI product. Soil Moisture values were validated by means of 10-fold cross validation and ground-truth validation with records from the North American Soil Moisture Data Base. Detailed methods and code cab be found in: Llamas, R.M; Guevara, Mario; Rorabaugh, Danny; Taufer, Michela; Vargas, Rodrigo. "Spatial Gap-Filling of ESA CCI Satellite-Derived Soil Moisture based on Geostatistical Techniques and Multiple Regression", Remote Sensing (accepted)

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
37.7500°
East Longitude
-93.7500°
South Latitude
33.0000°
West Longitude
-103.7500°

Content

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

This resource is referenced by Llamas, R.M; Guevara, Mario; Rorabaugh, Danny; Taufer, Michela; Vargas, Rodrigo. "Spatial Gap-Filling of ESA CCI Satellite-Derived Soil Moisture based on Geostatistical Techniques and Multiple Regression", Remote Sensing (accepted)
The content of this resource is derived from https://www.esa-soilmoisture-cci.org/node/237

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation OAC grant 1724843

How to Cite

Llamas, R., M. Guevara, D. Rorabaugh, M. Taufer, R. Vargas (2020). Oklahoma Soil Moisture Predictions, HydroShare, https://doi.org/10.4211/hs.f0091cf90bcc4487bf401ca19783d1eb

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

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

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