Results 11 to 20 of about 5,325,765 (204)
Fostering applications opportunities for the NASA Soil Moisture Active Passive (SMAP) Mission [PDF]
2010 IEEE International Geoscience and Remote Sensing Symposium, 2010 The NASA Soil Moisture Active Passive (SMAP) Mission will provide global observations of soil moisture and freeze/thaw state from space. We outline how priority applications contributed to the SMAP mission measurement requirements and how the SMAP mission plans to foster applications and applied science.
Mary Susan Moran +4 more
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The Soil Moisture Active and Passive Mission (SMAP): Science and applications [PDF]
2009 IEEE Radar Conference, 2009 The Soil Moisture Active and Passive mission (SMAP) will provide global maps of soil moisture content and surface freeze/thaw state. Global measurements of these variables are critical for terrestrial water and carbon cycle applications. The SMAP observatory consists of two multipolarization L-band sensors, a radar and radiometer, that share a ...
Entekhabi, Dara +2 more
openaire +4 more sources
The Soil Moisture Active Passive Experiments: Validation of the SMAP Products in Australia [PDF]
IEEE Transactions on Geoscience and Remote Sensing, 2021 The fourth and fifth Soil Moisture Active Passive Experiments (SMAPEx-4 and -5) were conducted at the beginning of the SMAP operational phase, May and September 2015, to: 1) evaluate the SMAP microwave observations and derived soil moisture (SM) products and 2) intercompare with the Soil Moisture and Ocean Salinity (SMOS) and Aquarius missions over the
Nan Ye +15 more
openaire +6 more sources
Geosciences, 2018 Satellite soil moisture is a critical variable for identifying susceptibility to hydroclimatic risks such as drought, dryness, and excess moisture. Satellite soil moisture data from the Soil Moisture Active/Passive (SMAP) mission was used to evaluate the
Catherine Champagne +3 more
doaj +2 more sources
Resolution Enhancement of SMAP Passive Soil Moisture Estimates
Remote Sensing, 2022 The Soil Moisture Active Passive (SMAP) mission includes a unique combination of instruments intended to provide daily global soil moisture data with high accuracy and resolution.
Jordan P. Brown, David G. Long
doaj +2 more sources
Development of SMAP (soil moisture active and passive) Freeze/Thaw algorithms adapted for the Canadian Tundra [PDF]
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012 This study is conducted in the framework of the NASA SMAP mission. The frozen soil mapping would certainly be improved by using the future NASA SMAP instruments which include both a Radiometer and a SAR operating at L-band. SMAP will have the ability to sense the soil conditions through moderate land cover.
Kalantari, Parvin +3 more
openaire +5 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Accurate high-spatial-resolution soil moisture content (SMC) datasets are crucial for applications, such as erosion modelling, flood forecasting, and agricultural production.
Huizhen Cui +5 more
doaj +1 more source
DOWNSCALING OF SMAP SOIL MOISTURE PRODUCT BY DATA FUSION WITH VIIRS LST/EVI PRODUCT [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Soil moisture is an essential variable of environment and climate change, which affects the energy and water exchange between soil and atmosphere. The estimation of soil moisture is thus very important in geoscience, while at same time also challenging ...
X. Lei, Y. Wang, T. Guo
doaj +1 more source
Controls on surface soil drying rates observed by SMAP and simulated by the Noah land surface model [PDF]
Hydrology and Earth System Sciences, 2018 Drydown periods that follow precipitation events provide an opportunity to assess controls on soil evaporation on a continental scale. We use SMAP (Soil Moisture Active Passive) observations and Noah simulations from drydown periods to quantify the ...
P. J. Shellito, E. E. Small, B. Livneh
doaj +1 more source
Soil Moisture Active/Passive (SMAP) radiometer Subband calibration and calibration drift [PDF]
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016 The radiometer Subband calibration and calibration drift correction have been successfully used in the released radiometer L1B data product. Although their performances satisfy the requirements, they are still under continuing analysis to find their remaining uncertainty. The progress will be presented besides the current performance.
Jinzheng Peng +3 more
openaire +2 more sources