Results 11 to 20 of about 14,624 (210)

Evaluation of SMAP Freeze/Thaw Retrieval Accuracy at Core Validation Sites in the Contiguous United States [PDF]

open access: yesRemote Sensing, 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 ...
Simon Kraatz   +7 more
doaj   +3 more sources

Estimating Gravimetric Water Content of a Winter Wheat Field from L-Band Vegetation Optical Depth

open access: yesRemote Sensing, 2019
A considerable amount of water is stored in vegetation, especially in regions with high precipitation rates. Knowledge of the vegetation water status is essential to monitor changes in ecosystem health and to assess the vegetation influence on the water ...
Thomas Meyer   +6 more
doaj   +1 more source

Assessing the Potential of Combined SMAP and In-Situ Soil Moisture for Improving Streamflow Forecast

open access: yesHydrology, 2023
Soil moisture is an essential hydrological variable for a suite of hydrological applications. Its spatio-temporal variability can be estimated using satellite remote sensing (e.g., SMOS and SMAP) and in-situ measurements.
Shimelis Asfaw Wakigari, Robert Leconte
doaj   +1 more source

Detecting Winter Wheat Irrigation Signals Using SMAP Gridded Soil Moisture Data

open access: yesRemote Sensing, 2019
The southern part of the Hebei Province is one of China’s major crop-producing regions. Due to the continuous decline in groundwater level, agricultural water use is facing significant challenges.
Zhen Hao   +4 more
doaj   +1 more source

Von Neumann Entropy-Preserving Quantum Operations [PDF]

open access: yes, 2011
For a given quantum state $\rho$ and two quantum operations $\Phi$ and $\Psi$, the information encoded in the quantum state $\rho$ is quantified by its von Neumann entropy $\S(\rho)$. By the famous Choi-Jamio{\l}kowski isomorphism, the quantum operation $
Bengtsson   +11 more
core   +1 more source

Synthetic Aperture Radar (SAR) Compact Polarimetry for Soil Moisture Retrieval

open access: yesRemote Sensing, 2019
Soil moisture is a factor for risk analysis in the agricultural sector, yet access to temporally and spatially detailed data is challenging for much of the world’s agricultural extend. Significant effort has been focused on developing methodologies
Amine Merzouki   +3 more
doaj   +1 more source

AP-1 Recruits SMAP-1/SMAPs to the trans-Golgi Network to Promote Sorting in Polarized Epithelia

open access: yesFrontiers in Cell and Developmental Biology, 2021
Coordinated AP-1 and clathrin coat assembly mediate secretory sorting on the trans-Golgi network (TGN) during conventional secretion. Here we found that SMAP-1/SMAPs deficiency caused the apical protein ERM-1 to accumulate on the basolateral side of the ...
Shimin Wang   +9 more
doaj   +1 more source

Impact of day/night time land surface temperature in soil moisture disaggregation algorithms [PDF]

open access: yes, 2016
Since its launch in 2009, the ESA’s SMOS mission is providing global soil moisture (SM) maps at ~40 km, using the first L-band microwave radiometer on space.
Camps Carmona, Adriano José   +5 more
core   +2 more sources

Seasonal Evaluation of SMAP Soil Moisture in the U.S. Corn Belt

open access: yesRemote Sensing, 2019
NASA’s Soil Moisture Active Passive (SMAP) Level 2 soil moisture products are not meeting mission goals in the U.S. Corn Belt according to our seasonal evaluation conducted at a SMAP Core Validation Site in central Iowa.
Victoria A. Walker   +3 more
doaj   +1 more source

Generating high spatial and temporal soil moisture data by disaggregation of SMAP product and its assessment in different land covers

open access: yesGIScience & Remote Sensing, 2020
Surface soil moisture (SSM) is an important parameter for many applications. Soil Moisture Active Passive (SMAP) satellite mission provides an SSM map at global scale.
Morteza Khazaei   +2 more
doaj   +1 more source

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