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Evaluation of Assimilated SMOS Soil Moisture Data for US Cropland Soil Moisture MonitoringRemotely sensed soil moisture data can provide timely, objective and quantitative crop soil moisture information with broad geospatial coverage and sufficiently high resolution observations collected throughout the growing season. This paper evaluates the feasibility of using the assimilated ESA Soil Moisture Ocean Salinity (SMOS)Mission L-band passive microwave data for operational US cropland soil surface moisture monitoring. The assimilated SMOS soil moisture data are first categorized to match with the United States Department of Agriculture (USDA)National Agricultural Statistics Service (NASS) survey based weekly soil moisture observation data, which are ordinal. The categorized assimilated SMOS soil moisture data are compared with NASSs survey-based weekly soil moisture data for consistency and robustness using visual assessment and rank correlation. Preliminary results indicate that the assimilated SMOS soil moisture data highly co-vary with NASS field observations across a large geographic area. Therefore, SMOS data have great potential for US operational cropland soil moisture monitoring.
Document ID
20170003709
Document Type
Reprint (Version printed in journal)
Authors
Yang, Zhengwei (National Agricultural Statistics Service Washington, DC, United States)
Sherstha, Ranjay (George Mason Univ. Fairfax, VA, United States)
Crow, Wade (Agricultural Research Service Beltsville, MD, United States)
Bolten, John (NASA Goddard Space Flight Center Greenbelt, MD United States)
Mladenova, Iva (Maryland Univ. Greenbelt, MD, United States)
Yu, Genong (George Mason Univ. Fairfax, VA, United States)
Di, Liping (George Mason Univ. Fairfax, VA, United States)
Date Acquired
April 20, 2017
Publication Date
November 3, 2016
Publication Information
Publication: 2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN41688
Funding Number(s)
CONTRACT_GRANT: NNX17AE79A
Distribution Limits
Public
Copyright
Other
Keywords
SMOS
cropland soil moisture