Results 91 to 100 of about 4,306 (212)

Evaluation of SMAP Level 2 Soil Moisture Algorithms Using SMOS Data [PDF]

The objectives of the SMAP (Soil Moisture Active Passive) mission are global measurements of soil moisture and land freeze/thaw state at 10 km and 3 km resolution, respectively.
Bindlish, Rajat, Chan, Steven, Colliander, Andreas, Cosh, Michael, Jackson, Thomas J., Kerr, Yann, Njoku, Eni, O'Neill, Peggy, Shi, J. C., Zhao, Tianjie   +9 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, Cosh, Michael H., Jacobs, Jennifer M., Kraatz, Simon G., Livingston, Stan, Prueger, John, Schroder, Ronny, Seyfried, Mark   +7 more
core   +1 more source

An Optimal Transport Framework for Water‐Energy Coupling in Soil‐Vegetation‐Atmosphere Continuum

Water Resources Research, Volume 61, Issue 12, December 2025.
Abstract The coupling between soil moisture (SM) and evapotranspiration (ET) governs key dynamics of Earth's climate and biosphere productivity. Yet, prevailing statistical models fall short of capturing the physics of water–energy exchange across diverse hydroclimates.
Debasish Mishra, Vinit Sehgal, Binayak P. Mohanty   +2 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., Bindlish, Rajat, Bullock, P., Colliander, Andreas, Cosh, Mike, Jackson, Thomas J., Magagi, A., McNairn, Heather, Misra, Sidharth, O'Neill, Peggy E., Powers, Jarrett, Yueh, Simon   +11 more
core   +1 more source

Assessment of Version 4 of the SMAP Passive Soil Moisture Standard Product [PDF]

NASAs Soil Moisture Active Passive (SMAP) mission launched on January 31, 2015 into a sun-synchronous 6 am6 pm orbit with an objective to produce global mapping of high-resolution soil moisture and freeze-thaw state every 2-3 days.
Asanuma, J., Berg, A., Bindlish, R., Bosch, D., Caldwell, T., Calvet, J-C., Chan, S., Chen, F., Colliander, A., Cosh, M., Crow, W., Dunbar, R., Entekhabi, D., González-Zamora, A., Holifield, C., Jackson, T., Kerr, Y., Lopez-Baeza, E., Martínez-Fernández, J., McNairn, H., O'neill, P. O., Pacheco, A., Palecki, M., Piepmeier, Jeffrey R., Prueger, J., Rowlandson, T., Seyfried, M., Small, E., Starks, P., Su, Z., Thibeault, M., Udall, F., Van der Velde, R., Walker, J., Wu, X., Yueh, S., Zreda, M.   +36 more
core   +2 more sources

Detailed Monitoring of the Antarctic Marginal Ice Zone by Satellite Radar Altimeter Synergy—A Study of the Weddell Sea/Indian Ocean Sector in July 2017

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The wave‐affected Marginal Ice Zones (MIZ) is a key region of air‐ice‐ocean interactions in the Southern Ocean (SO). However, challenges still remain for the large‐scale observation of the MIZ. In this study, we use four concurrent radar altimeters to retrieve the wave‐affected MIZ in the eastern Weddell Sea‐Indian Ocean sector, which was ...
Shiming Xu, Weixin Zhu, Lu Zhou, Siqi Liu, Alexander D. Fraser, Xiaohui Cheng, Clare Eayrs, Marcello Vichi   +7 more
wiley   +1 more source

Soil Moisture Active Passive (SMAP) Mission Level 4 Surface and Root Zone Soil Moisture (L4_SM) Product Specification Document [PDF]

This is the Product Specification Document (PSD) for Level 4 Surface and Root Zone Soil Moisture (L4_SM) data for the Science Data System (SDS) of the Soil Moisture Active Passive (SMAP) project.
Ardizzone, Joseph V., Kim, Gi-Kong, Lucchesi, Robert A., Reichle, Rolf H., Smith, Edmond B., Weiss, Barry H.   +5 more
core   +4 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., Cruise, James F., Ellenburg, W. Lee, Griffin, Robert E., Hain, Christopher R., Mecikalski, John R., Mishra, Vikalp   +6 more
core   +1 more source

The Evaluation of SMAP Enhanced Soil Moisture Products Using High-Resolution Model Simulations and In-Situ Observations on the Tibetan Plateau

Remote Sensing, 2018
The Soil Moisture Active Passive (SMAP) mission was designed to provide a global mapping of soil moisture (SM) measured by L-band passive and active microwave sensors.
Chengwei Li, Hui Lu, Kun Yang, Menglei Han, Jonathon S. Wright, Yingying Chen, Le Yu, Shiming Xu, Xiaomeng Huang, Wei Gong   +9 more
doaj   +1 more source

Polarization Decomposition and Temperature Bias Resolution for SMAP Passive Soil Moisture Retrieval Using Time Series Brightness Temperature Observations [PDF]

In passive microwave remote sensing of soil moisture, the tau-omega (-) model has often been used to provide soil moisture estimates at a spatial scale representative of the satellite footprint dimensions.
Bindlish, Rajat, Chan, Steven, Colliander, Andreas, Jackson, Thomas, O'Neill, Peggy, Yueh, Simon   +5 more
core   +2 more sources