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The soil moisture active and passive (smap) mission
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Johnson, Joel Jackson, Thomas J. Koster, Randal D. Tsang, Leung O'Neill, Peggy E. Goodman, Shawn D. VanZyl, Jakob Kellogg, Kent H. Thurman, Samuel W. Entekhabi, Dara Crow, Wade T. Kimball, John Spencer, Michael W. Shi, J. C. Edelstein, Wendy N. Piepmeier, Jeffrey R. McDonald, Kyle C. Moghaddam, Mahta Entin, Jared K. Nijoku, Eni G. Moran, Susan Reichle, Rolf |
| Copyright Year | 2009 |
| Description | The Soil Moisture Active and Passive (SMAP) Mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council s Decadal Survey. SMAP will make global measurements of the moisture present at Earth's land surface and will distinguish frozen from thawed land surfaces. Direct observations of soil moisture and freeze/thaw state from space will allow significantly improved estimates of water, energy and carbon transfers between land and atmosphere. Soil moisture measurements are also of great importance in assessing flooding and monitoring drought. SMAP observations can help mitigate these natural hazards, resulting in potentially great economic and social benefits. SMAP soil moisture and freeze/thaw timing observations will also reduce a major uncertainty in quantifying the global carbon balance by helping to resolve an apparent missing carbon sink on land over the boreal latitudes. The SMAP mission concept would utilize an L-band radar and radiometer. These instruments will share a rotating 6-meter mesh reflector antenna to provide high-resolution and high-accuracy global maps of soil moisture and freeze/thaw state every two to three days. The SMAP instruments provide direct measurements of surface conditions. In addition, the SMAP project will use these observations with advanced modeling and data assimilation to provide deeper root-zone soil moisture and estimates of land surface-atmosphere exchanges of water, energy and carbon. SMAP is scheduled for a 2014 launch date |
| File Size | 1999278 |
| Page Count | 21 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20090038719 |
| Archival Resource Key | ark:/13960/t42r8t97g |
| Language | English |
| Publisher Date | 2009-01-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Surveys Artificial Satellites Ultrahigh Frequencies Soil Moisture Earth Observations From Space Mission Planning Time Measurement Periodic Variations Earth Surface Soil Mapping Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
