The SMAP and Copernicus Sentinel 1A/B Microwave Active-Passive High Resolution Surface Soil Moisture Product and Its Applications [PDF]
SMAP project released a new enhanced high-resolution (3km and 1 km) soil moisture active-passive product. This product is obtained by combining the SMAP radiometer data and the Sentinel-1A and -1B Synthetic Aperture Radar (SAR) data.
Chaubell, Mario +7 more
core +1 more source
Monitoring Flood Inundation Dynamics From Space
Reviews of Geophysics, Volume 64, Issue 1, March 2026.Abstract With the increasing intensity and frequency of flood events worldwide, the need for accurate and timely inundation mapping has never been more critical. Large‐scale flood extent estimations are vital for coordinating effective disaster response, facilitating recovery, and building future resilience.
C. Campo +5 more
wiley +1 more source
Soil Moisture Retrieval with Airborne PALS Instrument over Agricultural Areas in SMAPVEX16 [PDF]
NASA's SMAP (Soil Moisture Active Passive) calibration and validation program revealed that the soil moisture products are experiencing difficulties in meeting the mission requirements in certain agricultural areas.
Berg, A. +11 more
core +1 more source
Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States [PDF]
, 2018 Seasonal freeze-thaw (FT) impacts much of the northern hemisphere and is an important control on its water, energy, and carbon cycle. Although FT in natural environments extends south of 45°N, FT studies using the L-band have so far been restricted to ...
Cho, Eunsang +7 more
core +1 more source
Water Resources Research, Volume 62, Issue 3, March 2026.Abstract Knowledge of the groundwater recharge rate determines whether aquifer use is sustainable. However, accurately measuring recharge globally presents significant challenges due to the complexity of subsurface processes and the lack of direct observational methods.
M. E. Soylu, D. Entekhabi, R. L. Bras
wiley +1 more source
Soil Moisture Buffers the Impact of Precipitation Variability on Ecosystem Productivity
Water Resources Research, Volume 62, Issue 3, March 2026.Abstract Water availability governs ecosystem productivity, yet estimates of vegetation sensitivity to water can differ greatly depending on whether the sensitivity is examined spatially or temporally. In particular, the spatial sensitivity is often reported to be much stronger than temporal sensitivities, leading to highly uncertain projections of ...
Huiqi Wang +6 more
wiley +1 more source
Validation of spaceborne and modelled surface soil moisture products with cosmic-ray neutron probes [PDF]
, 2017 The scale difference between point in situ soil moisture measurements and low resolution satellite products limits the quality of any validation efforts in heterogeneous regions.
Bogena, Heye R. +6 more
core +3 more sources
An Initial Assessment of a SMAP Soil Moisture Disaggregation Scheme Using TIR Surface Evaporation Data over the Continental United States [PDF]
The Soil Moisture Active Passive (SMAP) mission is dedicated toward global soil moisture mapping. Typically, an L-band microwave radiometer has spatial resolution on the order of 36-40 km, which is too coarse for many specific hydro-meteorological and ...
Anderson, Martha C. +6 more
core +1 more source
Selection of the key earth observation sensors and platforms focusing on applications for Polar Regions in the scope of Copernicus system 2020-2030 [PDF]
, 2019 An optimal payload selection conducted in the frame of the H2020 ONION project (id 687490) is presented based on the ability to cover the observation needs of the Copernicus system in the time period 2020–2030.
Camps Carmona, Adriano José +6 more
core +2 more sources
Seasonal Parameterizations of the Tau-Omega Model Using the ComRAD Ground-Based SMAP Simulator [PDF]
NASA's Soil Moisture Active Passive (SMAP) mission is scheduled for launch in November 2014. In the prelaunch time frame, the SMAP team has focused on improving retrieval algorithms for the various SMAP baseline data products.
Cosh, M. +4 more
core +1 more source