U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Cosh, Michaelitem
                                            Jackson, Thomasitem
                                            Moran, Maryitem
                                            BINDLISH, RAJAT - SSAI
  Submitted to: International Geoscience and Remote Sensing Symposium Proceedings
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 5/1/2006
                                    Publication  Date: 7/31/2006
                                    Citation: Cosh, M.H., Jackson, T.J., Moran, M.S., Bindlish, R. 2006. Surface soil moisture temporal persistence and stability in semi-arid watershed. In: Proceedings of the International Geoscience and Remote Sensing Symposium, July 31-August 31, 2006, Denver, Colorado. p. 1724-1727.Interpretive Summary:
                                Technical Abstract: Satellite soil moisture products, such as those derived from the Advanced Microwave Scanning Radiometer (AMSR-E), require diverse landscapes and land cover for robust calibration and validation efforts.  Semi-arid regions present a particular challenge because of the high spatial variability and temporal change in surface moisture conditions.  This study will address this problem by using data from a soil moisture observing network in semi-arid watershed  and temporal stability (persistence) analysis to quantify its’ ability to represent the larger (satellite) scale soil moisture average.  The watershed utilized, the Walnut Gulch Experimental Watershed (WGEW), has a dense soil moisture sensor network (SMSN) of 19 soil moisture sensors installed at 5 cm depth, distributed over a 150 km2 study region.  A study period of 3.5 years was available for this study. In conjunction with this monitoring network, intensive gravimetric soil moisture sampling was conducted as part of the Soil Moisture Experiment in 2004 (SMEX04 to the calibrate the network for large-scale.  Temporal stability analysis considers how each individual sensor relates to the overall average of the watershed.  Stable sensors (and collectively stable networks) are useful for the long-term study of satellite remote sensing products because of their proven reliability and accuracy.  The results demonstrate that the WGEW SMSN is an accurate and stable estimator of the watershed average.  The root mean square error (RMSE) of the network to the average from the high density SMEX04 sampling is less than 0.01 m3/m3.  Future studies should focus specifically on how best to obtain satellite soil moisture estimates using this solid calibration and validation soil moisture network.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov