Results 101 to 110 of about 6,924 (179)

Validation of Remotely Sensed and Modeled Soil Moisture at Forested and Unforested NEON Sites

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Soil moisture (SM) is an important driver for forest ecosystems, creating a need for globally extensive SM information that can only be achieved with satellite-based sensors and/or process-based model.
Edward Ayres, Rolf H. Reichle, Andreas Colliander, Michael H. Cosh, Lucas Smith   +4 more
doaj   +1 more source

Faraday Rotation Measurement with the SMAP Radiometer [PDF]

, 2016
Faraday rotation is an issue that needs to be taken into account in remote sensing of parameters such as soil moisture and ocean salinity at L-band. This is especially important for SMAP because Faraday rotation varies with azimuth around the conical ...
Le Vine, D. M., Abraham, S.
core  

Integration of Sentinel-1A Radar and SMAP Radiometer for Soil Moisture Retrieval over Vegetated Areas

Sensors
NASA’s Soil Moisture Active Passive (SMAP) was originally designed to combine high-resolution active (radar) and coarse-resolution but highly sensitive passive (radiometer) L-band observations to achieve unprecedented spatial resolution and accuracy for ...
Saeed Arab, Greg Easson, Zahra Ghaffari
doaj   +1 more source

Sequence of Four Orthogonal Smectic Phases in an Achiral Bent-Core Liquid Crystal: Evidence for the SmAP(alpha) Phase

, 2011
The mesomorphic properties of an achiral bent-core liquid crystal derived from 4-cyanoresorcinol are studied by polarizing optical microscopy, x-ray diffraction, and second harmonic electro-optic response.
NAGARAJ, MAMATHA, VIJ, JAGDISH
core  

SMAP SM and VOD retrievals (2016-2020)

The accuracy of global soil moisture (SM) and vegetation optical depth products at L-band (L-VOD) derived from the inversion of radiative transfer-based models is highly dependent on the input of soil temperature.
Yao Xiao (17964089)
core   +1 more source

ASTRA: AMSR2-to-SMAP Image-to-Image TRAnslation for soil moisture conversion and radiative transfer model-based interpretation

International Journal of Applied Earth Observations and Geoinformation
Soil moisture (SM) plays a central role in regulating land–atmosphere exchanges of water and energy and is therefore essential for climate and hydrological studies.
Gyeongbin Lee, Jaese Lee, Jungho Im, Bokyung Son, Sumin Park   +4 more
doaj   +1 more source

Code for SMAP 400 m soil moisture data producing

Python code for SMAP 400 m soil moisture data ...
Fang, Bin
core   +1 more source

Evaluating New SMAP Soil Moisture for Drought Monitoring in the Rangelands of the US High Plains

, 2016
• Level 3 soil moisture datasets from the recently launched Soil Moisture Active Passive (SMAP) satellite are evaluated for drought monitoring in rangelands.• Validation of SMAP soil moisture (SSM) with in situ and modeled estimates showed high level of ...
Morisette, Jeffrey T., Velpuri, Naga Manohar, Senay, Gabriel B.   +2 more
core  

SMAP-HydroBlocks: Hyper-resolution satellite-based soil moisture over the continental United States

SMAP-HydroBlocks (SMAP-HB) is a hyper-resolution satellite-based surface soil moisture product that combines NASA's Soil Moisture Active-Passive (SMAP) L3 Enhance product, hyper-resolution land surface modeling, radiative transfer modeling, machine ...
Chaney, Nathaniel W., Torres-Rojas, Laura, Sheffield, Justin, Ferguson, Craig R., Pan, Ming, Beck, Hylke E., Vergopolan, Noemi, Wood, Eric F.   +7 more
core   +1 more source

High temporal resolution quasi-global landscape soil freeze–thaw map from spaceborne GNSS-R technology and SMAP radiometer measurements

International Journal of Applied Earth Observations and Geoinformation
Landscape freeze–thaw (F/T) state parameters are an integral part of research on terrestrial hydrological processes, vegetation growth dynamics, and terrestrial–atmospheric trace gas exchange.
Wentao Yang, Fei Guo, Xiaohong Zhang, Zhiyu Zhang, Yifan Zhu   +4 more
doaj   +1 more source