Exploració per tema "hydrology"
Ara es mostren els items 1-8 de 8
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Denormalization of visibilities for in-orbit calibration of interferometric radiometers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
Article
Accés obertThis paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ... -
Inter-comparison of SMOS and aquarius brightness temperatures at L-band over selected targets
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Comunicació de congrés
Accés restringit per política de l'editorialThe 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 ... -
Performance Of Sea Surface Salinity And Soil Moisture Retrieval Algorithms With Different Auxiliary Datasets In 2-D L-Band Aperture Synthesis Interferometric Radiometers
(IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, INC, 2005-05-31)
Article
Accés obertThe Soil Moisture and Ocean Salinity (SMOS) Earth Explorer Opportunity Mission was selected in May 1999 by the European Space Agency Earth Observation Programme Board to provide global and frequent soil moisture (SM) and ... -
Performance of sea surface salinity and soil moisture retrieval algorithms with different auxiliary datasets in 2-D L-band aperture synthesis interferometric radiometers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-05-31)
Article
Accés obertThe Soil Moisture and Ocean Salinity (SMOS) Earth Explorer Opportunity Mission was selected in May 1999 by the European Space Agency Earth Observation Programme Board to provide global and frequent soil moisture (SM) and ... -
RF interference analisys in aperture synthesis interferometric radiometers: Application to L-band MIRAS instrument
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-03-31)
Article
Accés obertCurrent spaceborne radiometers do not achieve the required spatial resolution demanded by the scientific community due to antenna-size technological limitations. In recent years, several space agencies have been studying ... -
The correlation of visibility errors and its impact on the radiometric resolution of an aperture synthesis radiometer
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-09-30)
Article
Accés obertThe correlation between the visibility samples' noise of an aperture synthesis radiometer are required for the computation of the recovered temperature noise of a given pixel and of the improvement introduced by baseline ... -
The influence of uncertainty on a hydrological model and a sensitivity analysis to account for imperviousness in drainage analysis
(Universitat Politècnica de Catalunya, 2019-08-15)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: AECOMThe imperviousness of an urban catchment is maybe the most relevant parameter responsible of the peak. This study will be done based on a project where an assessment of a series of culverts is evaluated based on their ... -
The processing of hexagonally sampled signals with standard rectangular techniques: application to 2D large aperture synthesis interferometric radiometers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-01-31)
Article
Accés obertIn Earth observation programs there is a need of passive low frequency (L-band) measurements to monitor soil moisture and ocean salinity with high spatial resolution 10-20 km, a radiometric resolution of 1 K and a revisit ...