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Characterization of the SMOS instrumental error pattern correction over the ocean
dc.contributor.author | Gourrion, J. |
dc.contributor.author | Sabia, R. |
dc.contributor.author | Portabella, M. |
dc.contributor.author | Tenerelli, J. |
dc.contributor.author | Guimbard, S. |
dc.contributor.author | Camps Carmona, Adriano José |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2013-07-10T12:38:08Z |
dc.date.created | 2012-07 |
dc.date.issued | 2012-07 |
dc.identifier.citation | Gourrion, J. [et al.]. Characterization of the SMOS instrumental error pattern correction over the ocean. "IEEE Geoscience and Remote Sensing Letters", Juliol 2012, vol. 9, núm. 4, p. 793-797. |
dc.identifier.issn | 1545-598X |
dc.identifier.uri | http://hdl.handle.net/2117/19891 |
dc.description.abstract | The Soil Moisture and Ocean Salinity (SMOS) mission was launched on November 2nd, 2009 aiming at providing sea surface salinity (SSS) estimates over the oceans with frequent temporal coverage. The detection and mitigation of residual instrumental systematic errors in the measured brightness temperatures are key steps prior to the SSS retrieval. For such purpose, the so-called ocean target transformation (OTT) technique is currently used in the SMOS operational SSS processor. In this paper, an assessment of the OTT is performed. It is found that, to compute a consistent and robust OTT, a large ensemble of measurements is required. Moreover, several effects are reported to significantly impact the OTT computation, namely, the apparent instrument (temporal) drift, forward model imperfections, auxiliary data (used by forward model) uncertainty and external error sources, such as galactic noise and Sun effects (among others). These effects have to be properly mitigated or filtered during the OTT computation, so as to successfully retrieve SSS from SMOS measurements. |
dc.format.extent | 5 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Oceanografia |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció |
dc.subject.lcsh | Remote sensing |
dc.subject.lcsh | Oceanography -- Equipment and supplies |
dc.subject.other | Error correction |
dc.subject.other | interferometer |
dc.subject.other | radiometer |
dc.subject.other | remote sensing |
dc.subject.other | sea surface salinity |
dc.subject.other | Soil Moisture and Ocean Salinity (SMOS) |
dc.title | Characterization of the SMOS instrumental error pattern correction over the ocean |
dc.type | Article |
dc.subject.lemac | Teledetecció |
dc.subject.lemac | Oceanografia -- Aparells i instruments |
dc.contributor.group | Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
dc.identifier.doi | 10.1109/LGRS.2011.2181990 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6151022 |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 11148673 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Gourrion, J.; Sabia, R.; Portabella, M.; Tenerelli, J.; Guimbard, S.; Camps, A. |
local.citation.publicationName | IEEE Geoscience and Remote Sensing Letters |
local.citation.volume | 9 |
local.citation.number | 4 |
local.citation.startingPage | 793 |
local.citation.endingPage | 797 |
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