Search Results - "Obligis, E"

On the Wet Tropospheric Correction for Altimetry in Coastal Regions by Desportes, C.., Obligis, E.., Eymard, L..

“…In order to correct the altimeter range for tropospheric humidity, a microwave radiometer is added to altimetry missions [Envisat/microwave radiometer,…”
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SARAL/AltiKa Wet Tropospheric Correction: In-Flight Calibration, Retrieval Strategies and Performances by Picard, B., Frery, M.-L., Obligis, E., Eymard, L., Steunou, N., Picot, N.

“…The SARAL/AltiKa mission is a complement of the Jason altimeter series. A two-channels (23.8 GHz and 37 GHz) microwave radiometer (MWR) is combined to the…”
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One-Dimensional Variational Retrieval of the Wet Tropospheric Correction for Altimetry in Coastal Regions by Desportes, C., Obligis, E., Eymard, L.

“…The altimeter range is corrected for tropospheric humidity by means of microwave radiometer measurements (Envisat/MWR, Jason-1/JMR, Jason-2/AMR). Over an open…”
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An Improved Retrieval Algorithm for Water Vapor Retrieval: Application to the Envisat Microwave Radiometer by Obligis, E., Rahmani, A., Eymard, L., Labroue, S., Bronner, E.

“…Algorithms proposed to retrieve water vapor are usually developed using statistical regression. Recent results have shown that this global statistical approach…”
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A comparison of ocean emissivity models using the Advanced Microwave Sounding Unit, the Special Sensor Microwave Imager, the TRMM Microwave Imager, and airborne radiometer observations by Ellison, W. J., English, S. J., Lamkaouchi, K., Balana, A., Obligis, E., Deblonde, G., Hewison, T. J., Bauer, P., Kelly, G., Eymard, L.

“…New measurements of the permittivity of saline water at millimeter wavelengths have the potential to improve the accuracy of ocean surface emissivity models…”
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Long-term stability of ERS-2 and TOPEX microwave radiometer in-flight calibration by Eymard, L., Obligis, E., Ngan Tran, Karbou, F., Dedieu, M.

“…The microwave radiometers on altimeter missions are specified to provide the "wet" troposphere path delay with an uncertainty of 1 cm or lower, at the location…”
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Sea Surface Salinity Retrieval for the SMOS Mission Using Neural Networks by Ammar, A., Labroue, S., Obligis, E., Mejia, C.E., Crepon, M., Thiria, S.

“…During the in-flight phase, using neural networks to retrieve the sea surface salinity from the observed Soil Moisture and Ocean Salinity brightness…”
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Benefits of the Future Sea Surface Salinity Measurements From SMOS: Generation and Characteristics of SMOS Geophysical Products by Obligis, E., Boone, C., Larnicol, G., Philipps, S., Tranchant, B., Le Traon, P.-Y.

“…Soil Moisture and Ocean Salinity (SMOS) level 2 and level 3 products are simulated and characterized over a one-year time period. A simulator is first used to…”
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An Assessment of Jason-1 Microwave Radiometer Measurements and Products by OBLIGIS, E., TRAN, N., EYMARD, L.

“…In the context of the sea level survey at the mm level, it is necessary all along the lifetime of the altimeter mission to survey the quality of the products…”
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Data assimilation of simulated SSS SMOS products in an ocean forecasting system by Tranchant, B, Testut, C -E, Ferry, N, Renault, L, Obligis, E, Boone, C, Larnicol, G

“…Sea Surface Salinity (SSS) measured from the future Soil Moisture and Ocean Salinity (SMOS) satellite has to be considered as a new type of data. This paper…”
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A New Sidelobe Correction Algorithm for Microwave Radiometers: Application to the Envisat Instrument by Obligis, E., Eymard, L., Tran, N.

“…The antenna temperature measured by a microwave radiometer is converted in brightness temperature (TB) by removing the different contributions that do not come…”
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Comparison of ERS2 and TOPEX microwave radiometer absolute calibrations at high brightness temperatures by Eymard, L., Obligis, E., Karbou, F., Ngan Tran

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Comparison between spaceborne microwave radiometer measurements and simulations : surface model effects by Obligis, E., Eymard, L., Zanife, O.-Z.

“…We present results of comparison between measurements and simulations of active and passive instruments and analyze differences in terms of electromagnetic…”
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Neural networks to retrieve sea surface salinity from SMOS brightness temperatures by Obligis, E., Labroue, S., Amar, A., Thiria, S., Crepon, M.

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A comparison of ocean emissivity models using the advanced Microwave Sounding Unit, the Special Sensor Microwave Imager, the TRMM Microwave Imager, and airborne radiometer observations by ELLISON, W. J, ENGLISH, S. J, LAMKAOUCHI, K, BALANA, A, OBLIGIS, E, DEBLONDE, G, HEWISON, T. J, BAUER, P, KELLY, G, EYMARD, L

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Comparison of retrieval algorithms for the wet tropospheric path delay by Thao, S., Obligis, E., Picard, B., Frery, M-L, Eymard, L.

“…This paper provides a comparative analysis of statistical algorithms for the retrieval of the wet tropospheric correction from microwave radiometers in the…”
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On the wet tropospheric correction for altimetry in coastal regions by Desportes, C., Obligis, E., Eymard, L.

“…In order to correct the altimeter range for tropospheric humidity, a Microwave Radiometer is added to altimetry missions (Envisat/MWR, Jason/JMR,…”
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A comparison of interpolation processes: Applications to across-track scanning radiometers by Picard, B., Obligis, E., Denneulin, M.-L.

“…This paper shows the first results of a more complete study on the comparison of interpolation methods applied to conically scanning and across-track scanning…”
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Sea Surface Salinity Retrieval Throughout a SMOS Half-Orbit Using Neural Networks by Ammar, A., Labroue, S., Obligis, E., Mejia, C., Thiria, S., Crepon, M.

“…This article explains the way to resolve one of the main difficulties of using neural networks to retrieve the ocean salinity from SMOS observations. By…”
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Comparison of microwave radiometer brightness temperature over a hot reference area by Tran, N., Obligis, E., Eymard, L., Ruf, C.

“…Nadir-looking microwave radiometers are flown on different altimeter missions to correct the altimeter range for water vapor and cloud liquid water path delay…”
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