Results 111 to 120 of about 4,460 (223)

Comparing Temporal Dynamics of Soil Moisture from Remote Sensing, Modeling, and Field Observations Across Europe

Remote Sensing
This study evaluates temporal variability and algorithm differences in soil moisture estimates over Europe using the European Center for Medium-range Weather Forecasts (ECMWF) operational analysis and the passive Soil Moisture Active Passive (SMAP) soil ...
Lisa Jach, Anke Fluhrer, Hans-Stefan Bauer, David Chaparro, Florian M. Hellwig, Gerard Portal, Thomas Jagdhuber   +6 more
doaj   +1 more source

Multi-temporal catchment and wetland scale soil moisture and vegetation analysis in Shashe, Tugwi and Zibagwe sub-catchments of Zimbabwe

Geocarto International
We utilized Sentinel-1 Synthetic Aperture Radar (SAR) surface soil moisture, Sentinel-2 L1C-derived Enhanced Vegetation Index (EVI), and Soil Moisture Active Passive (SMAP) surface and root zone soil moisture data to assess soil moisture dynamics and ...
Oshneck Mupepi, Thomas Marambanyika, Mark Makomborero Matsa, Timothy Dube   +3 more
doaj   +1 more source

On Simulating the Impacts of Open Water Bodies on the SMAP Passive Soil Moisture Data Product [PDF]

The Soil Moisture Active and Passive (SMAP) mission is a NASA earth science mission aiming at improving our understanding of the dynamics of the cycles of energy, water, and carbon at global scales.
Chan, Steven, Jackson, Tom, Njoku, Eni, O'Neill, Peggy, Shi, Jiancheng   +4 more
core   +1 more source

Utilization of Ancillary Data Sets for SMAP Algorithm Development and Product Generation [PDF]

Algorithms being developed for the Soil Moisture Active Passive (SMAP) mission require a variety of both static and ancillary data. The selection of the most appropriate source for each ancillary data parameter is driven by a number of considerations ...
Njoku, E., ONeill, P., Podest, E.
core   +1 more source

SMAP Mission Status, New Products, and Extended-Phase Goals [PDF]

NASA's Soil Moisture Active Passive (SMAP) Project now has completed its prime-phase (three years) mission and has entered a new five-year extended phase.
Entekhabi, D., Entin, Jared K., O'Neill, Peggy E., You, Tung-Han, Yueh, Simon H.   +4 more
core   +1 more source

Characterizing Satellite Soil Moisture Drydown: A Bivariate Filtering Approach

Water Resources Research
Drying of soil impacts land energy and water balance, influences the sustainability of vegetation growth, and modulates hydrological extremes including floods.
Jhilam Sinha, Ashish Sharma, Lucy Marshall, Seokhyeon Kim   +3 more
doaj   +1 more source

Assessment of Soil Moisture Data Requirements by the Potential SMAP Data User Community: Review of SMAP Mission User Community [PDF]

NASA's Soil Moisture Active and Passive (SMAP) mission is planned for launch in October 2014 and will provide global measurements of soil moisture and freeze thaw state.
Brown, Molly E., Escobar, Vanessa M.
core   +1 more source

The SMAP Level 4 Carbon PRODUCT for Monitoring Terrestrial Ecosystem-Atmosphere CO2 Exchange [PDF]

The NASA Soil Moisture Active Passive (SMAP) mission Level 4 Carbon (L4_C) product provides model estimates of Net Ecosystem CO2 exchange (NEE) incorporating SMAP soil moisture information as a primary driver.
Ardizzone, J/, Glassy, J., Jones, L. A., Kimball, J. S., Madani, N., Reichle, R. H.   +5 more
core   +1 more source

Rootzone Soil Moisture Dynamics Using Terrestrial Water‐Energy Coupling

Geophysical Research Letters
A lack of high‐density rootzone soil moisture (θRZ) observations limits the estimation of continental‐scale, space‐time contiguous θRZ dynamics. We derive a proxy of daily θRZ dynamics — active rootzone degree of saturation (SRZ) — by recursive low‐pass (
Vinit Sehgal, Binayak P. Mohanty, Rolf H. Reichle   +2 more
doaj   +1 more source

Investigating Correlations and the Validation of SMAP-Sentinel L2 and In Situ Soil Moisture in Thailand. [PDF]

Sensors (Basel), 2023
Jotisankasa A, Torsri K, Supavetch S, Sirirodwattanakool K, Thonglert N, Sawangwattanaphaibun R, Faikrua A, Peangta P, Akaranee J.   +8 more
europepmc   +1 more source