Title:
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Inter-comparison of SMOS and aquarius brightness temperatures at L-band over selected targets
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Author:
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Pablos Hernández, Miriam; Piles Guillem, Maria; González Gambau, Veronica; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CTE-CRAE - Grup de Recerca en Ciències i Tecnologies de l'Espai; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
Abstract:
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The spectral window at L-band (1.400 - 1.427 GHz) is reserved for passive microwave remote sensing. This band is well-suited to retrieve soil moisture and ocean salinity due to emissivity of soil and seawater decreases with moisture and salinity, respectively, affecting microwave radiation of the Earth's surface. Nowadays, there are two space missions devoted to Earth observation with L-band radiometers on-board: the SMOS mission from the ESA and the Aquarius/SAC-D mission from the NASA and CONAE. Both missions are providing the first TB measurements of the Earth's surface at 1.413 GHz. Thus, it is a great opportunity to compare SMOS and Aquarius TBs and verify the continuity and consistency of the data. This inter-comparison is a key requirement needed to use data of both radiometers for meteorological, hydrological and climatological studies on a long term. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida::Climatologia i meteorologia -Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció -Soil moisture--Measurement -Radiation--Measurement -Remote sensing -Atmospheric radiation -climatology -data integrity -hydrology -meteorology -oceanography -radiometers -remote sensing -salinity (geophysical) -seawater -soil -Aquarius TB -Aquarius brightness temperature inter-comparison -Aquarius-SAC-D mission -CONAE -ESA -Earth observation -Earth surface microwave radiation -L-band radiometers -L-band spectral window -NASA -SMOS TB -SMOS brightness temperature inter-comparison -SMOS mission -TB measurements -climatological study -data consistency verification -data continuity verification -hydrological study -long term study -meteorological study -ocean salinity retrieval -passive microwave remote sensing -radiometer data -seawater emissivity -selected target L-band -soil emissivity -soil moisture retrieval -space missions -Earth -Ice -L-band -Ocean temperature -Radiometers -Sea measurements -Temperature measurement -Aquarius/SAC-D mission -L-band -Passive Microwave Remote Sensing -SMOS mission -radiometer -Sòls -- Humitat -- Mesurament -Radiació -- Mesurament -Teledetecció |
Rights:
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Document type:
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Article - Published version Conference Object |
Published by:
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Institute of Electrical and Electronics Engineers (IEEE)
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