Results 21 to 30 of about 4,460 (223)
Frontiers in Big Data, 2020 From an agricultural perspective, drought refers to an unusual deficiency of plant available water in the root-zone of the soil profile. This paper focuses on evaluating the benefit of assimilating soil moisture retrievals from the Soil Moisture Active ...
Iliana E. Mladenova +6 more
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Introducing the SMAP L4 Products and Investigating the Spatio-Temporal Variability of Soil Moisture in Iran [PDF]
Nīvār, 2022 Background and objectives: Although estimation of soil surface moisture plays an important role in soil and water resources management, unfortunately, there is currently no national soil moisture monitoring network in Iran and the distribution of in situ
Ebrahim Asadi Oskouei +2 more
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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
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 L-band microwave satellite missions provide soil moisture information potentially useful for streamflow and, hence, flood predictions. However, these observations are also sensitive to the presence of vegetation that makes satellite soil moisture ...
Navid Jadidoleslam +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
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Remote Sensing, 2017 Soil moisture products acquired from passive satellite missions have been widely applied in environmental processes. A primary challenge for the use of soil moisture products from passive sensors is their reliability.
Xuefei Zhang +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Soil moisture influences forest health, fire occurrence and extent, and insect and pathogen impacts, creating a need for regular, globally extensive soil moisture measurements that can only be achieved by satellite-based sensors, such as NASA's ...
Edward Ayres +5 more
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Description of the UCAR/CU Soil Moisture Product
Remote Sensing, 2020 Currently, the ability to use remotely sensed soil moisture to investigate linkages between the water and energy cycles and for use in data assimilation studies is limited to passive microwave data whose temporal revisit time is 2–3 days or active ...
Clara Chew, Eric Small
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Remote Sensing, 2017 A good knowledge of the quality of the satellite soil moisture products is of great importance for their application and improvement. This paper examines the performance of eight satellite-based soil moisture products, including the Soil Moisture Active ...
Chenyang Cui +7 more
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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
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