Results 31 to 40 of about 4,306 (212)

Analyzing Effects of Crops on SMAP Satellite-Based Soil Moisture Using a Rainfall–Runoff Model in the U.S. Corn Belt

open access: yesIEEE 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
doaj   +1 more source

The Soil Moisture Active and Passive Mission (SMAP): Science and applications [PDF]

open access: yes2009 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
openaire   +2 more sources

Validation Analysis of SMAP and AMSR2 Soil Moisture Products over the United States Using Ground-Based Measurements

open access: yesRemote 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
doaj   +1 more source

Validation of SMAP Soil Moisture at Terrestrial National Ecological Observatory Network (NEON) Sites Show Potential for Soil Moisture Retrieval in Forested Areas

open access: yesIEEE 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
doaj   +1 more source

Description of the UCAR/CU Soil Moisture Product

open access: yesRemote 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
doaj   +1 more source

One-Point Calibration for Soil Moisture Active/Passive (SMAP) L-Band Microwave Radiometer

open access: goldIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Jinzheng Peng   +4 more
openalex   +2 more sources

Soil Moisture Mapping from Satellites: An Intercomparison of SMAP, SMOS, FY3B, AMSR2, and ESA CCI over Two Dense Network Regions at Different Spatial Scales

open access: yesRemote 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
doaj   +1 more source

Resolution Enhancement of SMAP Passive Soil Moisture Estimates

open access: yesRemote 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
doaj   +1 more source

Global downscaling of remotely sensed soil moisture using neural networks [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Characterizing soil moisture at spatiotemporal scales relevant to land surface processes (i.e., of the order of 1 km) is necessary in order to quantify its role in regional feedbacks between the land surface and the atmospheric boundary layer ...
S. H. Alemohammad   +13 more
doaj   +1 more source

Fostering applications opportunities for the NASA Soil Moisture Active Passive (SMAP) Mission [PDF]

open access: yes2010 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
openaire   +2 more sources

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