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IGARSS 2024 - 2024 IEEE International Geoscience and Remote Sensing SymposiumXiaolan Xu +4 more
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Physically-based active-passive modelling and retrieval for SMAP soil moisture inversion algorithm
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015The NASA Soil Moisture Active Passive (SMAP) mission is designed to produce high-resolution (9 km) global mapping of surface soil moisture based on L-band radar and radiometer measurements. The multi-scale measurements are combined using time-series of active passive microwave data to retrieve the statistical regression parameters (α, β) from ...
Jagdhuber, Thomas +7 more
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2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
In this paper, we describe our approach to simulate realistic L-band brightness temperatures to be measured by the Soil Moisture Active Passive (SMAP) mission. These realistic simulated measurements are crucial because they provide a quantitative basis by which we develop and improve our pre-launch retrieval algorithms for soil moisture at 9-km and 36 ...
Steven Chan, Eni Njoku, Scott Dunbar
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In this paper, we describe our approach to simulate realistic L-band brightness temperatures to be measured by the Soil Moisture Active Passive (SMAP) mission. These realistic simulated measurements are crucial because they provide a quantitative basis by which we develop and improve our pre-launch retrieval algorithms for soil moisture at 9-km and 36 ...
Steven Chan, Eni Njoku, Scott Dunbar
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Frequency-Agile Radar Electronics for the Soil Moisture Active\/Passive (SMAP) Mission
IEEE Geoscience and Remote Sensing Magazine, 2015The radar aboard the Soil Moisture Active/Passive (SMAP) instrument is an L-band scatterometer/synthetic aperture radar (SAR) with uniquely designed capabilities for global retrieval of surface soil moisture. Several key science requirements have shaped the radar architecture, including requirements on terrestrial radio frequency interference (RFI ...
Mark Fischman +3 more
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41st International Conference on Environmental Systems, 2011
NASA’s Earth observing Soil Moisture Active & Passive (SMAP) Mission is scheduled to launch in November 2014 into a 685 km near-polar, sun synchronous orbit. As one of the four first-tier missions recommended by the National Research Council's Committee on Earth Science and Applications from Space, SMAP will provide comprehensive global mapping ...
Arthur Mastropietro +8 more
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NASA’s Earth observing Soil Moisture Active & Passive (SMAP) Mission is scheduled to launch in November 2014 into a 685 km near-polar, sun synchronous orbit. As one of the four first-tier missions recommended by the National Research Council's Committee on Earth Science and Applications from Space, SMAP will provide comprehensive global mapping ...
Arthur Mastropietro +8 more
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End-to-end data flow on the Soil Moisture Active Passive (SMAP) mission
2012 IEEE Aerospace Conference, 2012The Soil Moisture Active Passive (SMAP) satellite mission will provide measurements of the soil moisture and freeze/thaw state over the Earth's land surface, significantly enhancing knowledge of the Earth's water, energy, and carbon cycles. Collecting, transmitting, processing, and archiving the complete set of science and engineering data will be a ...
E. Deems, C. Swan, B. Weiss
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Galaxy Correction Upgrade in the Soil Moisture Active/Passive (SMAP) Microwave Radiometer Algorithm
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018The SMAP mission was designed to measure soil moisture globally for quantifying the water and carbon cyclces. The Brightness Temperature (TB) measurement by the SMAP L-band radiometer over ocean is also used for Sea Surface Salinity (SSS) retrieval.
J. Peng +3 more
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2016 Progress in Electromagnetic Research Symposium (PIERS), 2016
The zeroth-order radiative transfer model, also known as the tau-omega model, has been used extensively for decades in passive remote sensing of soil moisture. One approach, commonly known as the Dual Channel Algorithm (DCA), to retrieve soil moisture from this model is to make use of the H- and V-polarized brightness temperature (T B ) channels ...
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The zeroth-order radiative transfer model, also known as the tau-omega model, has been used extensively for decades in passive remote sensing of soil moisture. One approach, commonly known as the Dual Channel Algorithm (DCA), to retrieve soil moisture from this model is to make use of the H- and V-polarized brightness temperature (T B ) channels ...
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An integrated active-passive soil moisture retrieval algorithm for SMAP for bare surfaces
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012An integrated soil moisture retrieval algorithm is presented in this work wherein both radar and radiometer measurements are used simultaneously to retrieve surface soil moisture. This method is applied to bare rough surfaces with varying soil moisture and roughness distributions.
Ruzbeh Akbar, Mahta Moghaddam
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The planned Soil Moisture Active Passive (SMAP) mission L-band radar/radiometer instrument
2011 IEEE International Geoscience and Remote Sensing Symposium, 2011The Soil Moisture Active/Passive (SMAP) mission is a NASA mission identified by the NRC “decadal survey” to measure both soil moisture and freeze/thaw state from space. The mission will use both active radar and passive radiometer instruments at L-Band.
Michael Spencer +5 more
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