Articles | Volume 21, issue 9
https://doi.org/10.5194/hess-21-4403-2017
https://doi.org/10.5194/hess-21-4403-2017
Research article
 | 
07 Sep 2017
Research article |  | 07 Sep 2017

Multi-decadal analysis of root-zone soil moisture applying the exponential filter across CONUS

Kenneth J. Tobin, Roberto Torres, Wade T. Crow, and Marvin E. Bennett

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by Editor) (26 Jun 2017) by Erwin Zehe
AR by Kenneth Tobin on behalf of the Authors (06 Jul 2017)  Author's response    Manuscript
ED: Publish as is (07 Jul 2017) by Erwin Zehe
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Short summary
This study applied the exponential filter to produce an estimate of root-zone soil moisture at 20 to 25 cm depths. Four types of microwave, surface satellite soil moisture were used. The study focused on the continental United States, and in situ data were used from the International Soil Moisture Network for comparison. This study spans almost two decades (1997 to 2014). Root mean square error was close to 0.04, which is the baseline value for accuracy designated for many satellite missions.