Results 1 to 10 of about 1,110 (203)
Soil Moisture Active Passive (SMAP) Satellite Data and Unsaturated Soil Response [PDF]
E3S Web of Conferences, 2023 The importance of degree of soil saturation in geotechnical problems resulted in inclusion of unsaturated soil mechanics in various applications for several decades.
Farahani Ali +2 more
doaj +3 more sources
The Soil Moisture Active Passive (SMAP) Mission [PDF]
Proceedings of the IEEE, 2010 The Soil Moisture Active 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 soil moisture present at the Earth's land surface and will distinguish frozen from thawed land surfaces.
Dara Entekhabi +2 more
exaly +5 more sources
Application of Soil Moisture Active Passive (SMAP) Satellite Data in Seismic Response Assessment [PDF]
Remote Sensing, 2022 The proven relationship between soil moisture and seismic ground response highlights the need for a tool to track the Earth’s surface soil moisture before and after seismic events.
Ali Farahani +3 more
doaj +6 more sources
Estimating Regional Scale Hydroclimatic Risk Conditions from the Soil Moisture Active-Passive (SMAP) Satellite [PDF]
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
The Soil Moisture Active Passive Experiments: Validation of the SMAP Products in Australia
IEEE Transactions on Geoscience and Remote Sensing, 2020 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
openalex +7 more sources
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
openalex +2 more sources
The NASA Soil Moisture Active Passive (SMAP) mission: Overview [PDF]
2010 IEEE International Geoscience and Remote Sensing Symposium, 2010 The Soil Moisture Active 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 [1]. Its mission design consists of L-band radiometer and radar instruments sharing a rotating 6-m mesh reflector antenna to provide high-resolution and high-accuracy ...
Peggy O’Neill +3 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 ...
Dara Entekhabi +2 more
openalex +4 more sources
Integration of Sentinel-1A Radar and SMAP Radiometer for Soil Moisture Retrieval over Vegetated Areas [PDF]
SensorsNASA’s Soil Moisture Active Passive (SMAP) was originally designed to combine high-resolution active (radar) and coarse-resolution but highly sensitive passive (radiometer) L-band observations to achieve unprecedented spatial resolution and accuracy for ...
Saeed Arab, Greg Easson, Zahra Ghaffari
doaj +2 more sources
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.
M. Susan Moran +4 more
openalex +4 more sources