Results 201 to 210 of about 19,071 (245)
Development and assessment of the SMAP enhanced passive soil moisture product
Remote Sensing of Environment, 2018 Steven Chan +2 more
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Water Resources Research, 2023
Highly accurate soil moisture information is necessary to understand land surface processes. However, observational techniques do not produce adequately accurate spatial‐temporal continuous regional soil moisture data. The data assimilation method can be
Xiaolei Fu +7 more
semanticscholar +1 more source
Highly accurate soil moisture information is necessary to understand land surface processes. However, observational techniques do not produce adequately accurate spatial‐temporal continuous regional soil moisture data. The data assimilation method can be
Xiaolei Fu +7 more
semanticscholar +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Satellite-based retrieval of forest soil moisture (SM) and vegetation optical depth (VOD) are two long-standing unresolved issues hindering advances in hydrology, ecology, and Earth system science. A key obstacle is the lack of adequate reference data in
A. Colliander +21 more
semanticscholar +1 more source
Satellite-based retrieval of forest soil moisture (SM) and vegetation optical depth (VOD) are two long-standing unresolved issues hindering advances in hydrology, ecology, and Earth system science. A key obstacle is the lack of adequate reference data in
A. Colliander +21 more
semanticscholar +1 more source
IEEE Geoscience and Remote Sensing Letters, 2022
In preparation for the NISAR mission soil moisture algorithm, this study performs the validation of the European Center for Medium-Range Weather Forecast (ECMWF) ERA5-Land volumetric soil water (soil moisture) layer product with in situ measurements from
Preet Lal +4 more
semanticscholar +1 more source
In preparation for the NISAR mission soil moisture algorithm, this study performs the validation of the European Center for Medium-Range Weather Forecast (ECMWF) ERA5-Land volumetric soil water (soil moisture) layer product with in situ measurements from
Preet Lal +4 more
semanticscholar +1 more source
Proceedings of the 1998 ACM/SIGDA sixth international symposium on Field programmable gate arrays - FPGA '98, 1998
It has become clear that large embedded configurable memory arrays will be essential in future FPGAs. Embedded arrays provide high-density high-speed implementations of the storage parts of circuits. Unfortunately, they require the FPGA vendor to partition the device into memory and logic resources at manufacture-time.
openaire +1 more source
It has become clear that large embedded configurable memory arrays will be essential in future FPGAs. Embedded arrays provide high-density high-speed implementations of the storage parts of circuits. Unfortunately, they require the FPGA vendor to partition the device into memory and logic resources at manufacture-time.
openaire +1 more source
Hydrology and Earth System Sciences
. Advances in satellite Earth observation have opened up new opportunities for global monitoring of soil moisture (SM) at fine to medium resolution, but satellite remote sensing can only measure the near-surface soil moisture (SSM).
Aruna Kumar Nayak +7 more
semanticscholar +1 more source
. Advances in satellite Earth observation have opened up new opportunities for global monitoring of soil moisture (SM) at fine to medium resolution, but satellite remote sensing can only measure the near-surface soil moisture (SSM).
Aruna Kumar Nayak +7 more
semanticscholar +1 more source
Remote Sensing of Environment, 2019
The Soil Moisture Active Passive (SMAP) satellite can no longer directly deliver high-resolution (9 km) soil moisture products with the failure of the onboard L-band radar. Thus, an appropriate replacement sensor and new algorithms are urgently needed to
Zushuai Wei, Jian Peng, Lingkui Meng
exaly +2 more sources
The Soil Moisture Active Passive (SMAP) satellite can no longer directly deliver high-resolution (9 km) soil moisture products with the failure of the onboard L-band radar. Thus, an appropriate replacement sensor and new algorithms are urgently needed to
Zushuai Wei, Jian Peng, Lingkui Meng
exaly +2 more sources
IEEE Transactions on Geoscience and Remote Sensing
The L-band (1.4 GHz) brightness temperature (TB) is interpreted by the zeroth-order approximation of the radiation transfer model, known as the $\tau $ - $\omega $ model.
Jaese Lee +4 more
semanticscholar +1 more source
The L-band (1.4 GHz) brightness temperature (TB) is interpreted by the zeroth-order approximation of the radiation transfer model, known as the $\tau $ - $\omega $ model.
Jaese Lee +4 more
semanticscholar +1 more source
SMAP Passive Microwave Radiometer for Global River Flow Monitoring
IEEE Transactions on Geoscience and Remote SensingRiver flow is a fundamental observable in hydrology, but there is no consistent global ground measurement network. Various types of orbital remote sensing are, therefore, well positioned to meet an important observational need, including for hydrological
Z. Kugler, S. V. Nghiem, G. Brakenridge
semanticscholar +1 more source
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The Soil Moisture Active Passive (SMAP) mission, launched on January 31, 2015, has completed its primary 3-year mission and is currently in its extended mission. Although operation occurs within the protected frequency allocation of 1400-1427 MHz, the SMAP radiometer is impacted by radio frequency interference (RFI).
Priscilla N. Mohammed +3 more
openaire +1 more source
The Soil Moisture Active Passive (SMAP) mission, launched on January 31, 2015, has completed its primary 3-year mission and is currently in its extended mission. Although operation occurs within the protected frequency allocation of 1400-1427 MHz, the SMAP radiometer is impacted by radio frequency interference (RFI).
Priscilla N. Mohammed +3 more
openaire +1 more source