Sensitivity to soil moisture of spaceborne GNSS-R observables

Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Hyuk, Park; Portal González, Gerard; Rossato, Luciana

doi:10.1109/IGARSS.2018.8518942

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Camps Carmona, Adriano José

Vall-Llossera Ferran, Mercedes Magdalena

Hyuk, Park

Portal González, Gerard

Rossato, Luciana

Document typeConference report

Defense date2018

PublisherInstitute of Electrical and Electronics Engineers (IEEE)

Rights accessRestricted access - publisher's policy

Abstract

The potential of GNSS-R techniques to estimate land surface parameters such as Soil Moisture (SM) is experimentally studied using 2014-2017 global data from the UK TechDemoSat-1 (TDS-1) mission. The approach is based on the analysis of the sensitivity to Soil Moisture of different observables extracted from the Delay Doppler Maps (DDM) computed by the SGR-ReSI instrument using the L1 (1575.42 MHz) left-hand circularly-polarized (LHCP) reflected signals emitted by navigation satellites. After quality-filtering the data (spacecraft not `in eclipse' and the direct signal not present in the DDM), topography filtering the data, correction for background noise, antenna pattern gain, different distance propagation factors, and vegetation attenuation, the sensitivity of different GNSS-R observables to SM and its dependence with incidence angle is analyzed.

CitationCamps, A. [et al.]. Sensitivity to soil moisture of spaceborne GNSS-R observables. A: IEEE International Geoscience and Remote Sensing Symposium. "2018 IEEE International Geoscience & Remote Sensing Symposium: proceedings: July 22–27, 2018 Valencia, Spain". Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 3161-3164.

URIhttp://hdl.handle.net/2117/130411

DOI10.1109/IGARSS.2018.8518942

ISBN978-1-5386-7150

Publisher versionhttps://ieeexplore.ieee.org/document/8518942

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Sensitivity to soil moisture of spaceborne GNSS-R observables

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