| Science Team Member | Expertise and Experience | Roles and Responsibilities |
| S. Belair (MSC) | Hydrometeorology; Mesoscale Modeling; Data Assimilation | 4DDA Products |
| W. Crow (USDA ARS) | Soil Moisture Microwave Remote Sensing and Modeling | Soil Moisture Algorithms Evaluation in Field Experiments; Soil Moisture Products |
| D. Entekhabi (MIT) - PI | Global Water Cycle; Data Assimilation; Hydrologic Science | 10 km Soil Moisture Product; 4DDA Products |
| P. Houser (George Mason University) |
Land-Atmosphere Interaction Observations and Modeling | 4DDA Products; Education/Public Outreach Leader |
| T. Jackson (USDA ARS) | Soil Moisture Observing and Modeling Systems; Aqua/AMSR Validation Team; SGP97, SGP99 and SMEX PI | Soil Moisture Algorithms Evaluation in Field Experiments; Soil Moisture Products |
| Y. Kerr (CESBIO) | Global Hydrology; Microwave Remote Sensing; SMOS PI | Radiometer Soil Moisture Algorithm; SMOS Coordination |
| J. Kimball (U-MT) | Land, Water, Energy, and Carbon Relations | Freeze/Thaw Products, Algorithm and Validation |
| R. Koster (GSFC) | Large-Scale Hydroclimatology | 4DDA Products Leader; GMAO Application and Coordination |
| K. McDonald (JPL) | Remote Sensing of Land Surface Processes; BO-REAS,ADEOS and Ocean Vector Wind Science Teams | Freeze/Thaw Algorithm Development and Evaluation |
| E. Njoku (JPL) | Microwave Remote Sensing of Surface Hydrologic Processes Aqua/AMSR Science Team and Algorithm PI; PALS PI | JPL Project Scientist; Combined Radiometer and Radar Soil Moisture Algorithm Development |
| P. O'Neill (GSFC) | Soil Moisture Microwave Remote Sensing and Modeling | GSFC Project Scientist; Soil Moisture Algorithm Development; 40 km Soil Moisture Product |
| T. Pultz (CCRS) | Hydrologic Remote Sensing; Disaster Management | Field Experiments and Validation of Algorithms |
| S. Running (U-MT) | Terrestrial Ecology; Remote Sensing; MODIS and BOREAS Science Teams | Freeze/Thaw Products and Value-Added Products Development |
| J.C. Shi (UCSB) | Remote Sensing of Soil Moisture and Snow Properties | Combined Radar and Radiometer Algorithm Development |
| E. Wood (Princeton U.) | Hydroclimatology: Remote Sensing of Terrestrial Systems | Algorithms Evaluation and Validation through Modeling |
| J. van Zyl (JPL) | Radar Scattering; Sensor/Algorithm Development | Radar Soil Moisture, Surface Roughness and Vegetation Algorithm |