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Microwave Indices from Active and Passive Sensors for Remote Sensing Applications

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ISBN: 9783038978206 9783038978213 Year: Pages: 224 DOI: 10.3390/books978-3-03897-821-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Geography --- Science (General)
Added to DOAB on : 2019-12-09 11:49:16
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Abstract

Past research has comprehensively assessed the capabilities of satellite sensors operating at microwave frequencies, both active (SAR, scatterometers) and passive (radiometers), for the remote sensing of Earth’s surface. Besides brightness temperature and backscattering coefficient, microwave indices, defined as a combination of data collected at different frequencies and polarizations, revealed a good sensitivity to hydrological cycle parameters such as surface soil moisture, vegetation water content, and snow depth and its water equivalent. The differences between microwave backscattering and emission at more frequencies and polarizations have been well established in relation to these parameters, enabling operational retrieval algorithms based on microwave indices to be developed. This Special Issue aims at providing an overview of microwave signal capabilities in estimating the main land parameters of the hydrological cycle, e.g., soil moisture, vegetation water content, and snow water equivalent, on both local and global scales, with a particular focus on the applications of microwave indices.

Sea Surface Salinity Remote Sensing

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ISBN: 9783039210763 9783039210770 Year: Pages: 296 DOI: 10.3390/books978-3-03921-077-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General)
Added to DOAB on : 2019-12-09 11:49:15
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Abstract

This Special Issue gathers papers reporting research on various aspects of remote sensing of Sea Surface Salinity (SSS) and the use of satellite SSS in oceanography. It includes contributions presenting improvements in empirical or theoretical radiative transfer models; mitigation techniques of external interference such as RFI and land contamination; comparisons and validation of remote sensing products with in situ observations; retrieval techniques for improved coastal SSS monitoring, high latitude SSS and the assessment of ocean interactions with the cryosphere; and data fusion techniques combining SSS with sea surface temperature (SST). New instrument technology for the future of SSS remote sensing is also presented.

Keywords

sea surface salinity --- remote sensing --- mediterranean sea --- smos --- alboran sea --- data processing --- quality assessment --- MICAP --- forward model --- combined active/passive SSS retrieval algorithm --- different instrument configurations --- retrieval errors --- SMAP --- sea surface salinity --- Arctic Ocean --- sea ice --- river discharge --- Arctic Gateways --- sea surface salinity --- remote sensing --- aquarius --- SMAP --- retrieval algorithm --- calibration --- validation --- satellite salinity --- Gulf of Maine --- bias characteristics --- Scotian Shelf --- Aquarius satellite --- sea surface salinity --- Aquarius Validation Data System (AVDS) --- ocean salinity --- microwave remote sensing --- remote sensing --- sea surface salinity --- SMAP --- SMOS --- Gulf of Mexico --- validation --- coastal --- salinity --- upwelling --- sea surface salinity --- remote sensing --- Arctic ocean --- SMOS --- Arctic rivers --- data processing --- quality assessment --- Aquarius --- Argo --- Sea Surface Salinity --- Water Cycle Observation Mission (WCOM) --- interferometric microwave imager (IMI) --- one-dimensional (1D) aperture synthesis radiometer --- sea surface salinity (SSS) --- brightness temperature (TB) --- sea surface salinity --- microwave radiometry --- remote sensing --- calibration --- retrieval algorithm --- validation --- Aquarius --- SMOS --- SMAP --- sea surface temperature --- sea surface salinity --- SMOS --- retroflections --- surface velocity --- water transport --- salt transport --- n/a --- sea surface salinity --- ocean surface roughness --- microwave radiometry --- remote sensing --- forward model --- retrieval algorithm

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MDPI - Multidisciplinary Digital Publishing Institute (2)


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english (2)


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2019 (2)