Search Results - "Viltard, Nicolas"

Unsupervised domain adaptation for Global Precipitation Measurement satellite constellation using Cycle Generative Adversarial Nets by Sambath, Vibolroth, Viltard, Nicolas, Barthès, Laurent, Martini, Audrey, Mallet, Cécile

“…Artificial intelligence has provided many breakthroughs in the field of computer vision. The fully convolutional networks U-Net in particular have provided…”
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Polarimetric signatures and hydrometeor classification of West African squall lines by Evaristo, Raquel, Scialom, Georges, Viltard, Nicolas, Lemaître, Yvon

“…During the AMMA campaign, the Doppler and polarimetric radar Ronsard was deployed in Kopargo, Benin. In the present paper, three squall lines sampled during…”
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Unsupervised Domain Adaptation to Mitigate Out-of-Distribution Problem of Spatial Radiometer Images: Application to Quantitative Precipitation Estimation by Sambath, Vibolroth, Dubois-Quilici, Natanael, Viltard, Nicolas, Martini, Audrey, Mallet, Cecile

“…A major issue limiting the successful deployment of deep-learning algorithms in geophysical applications is their inability to generalize to new contexts…”
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Evaluation Of Drain, A Deep-Learning Approach To Rain Retrieval From Gpm Passive Microwave Radiometer by Viltard, Nicolas, Sambath, Vibolroth, Lepetit, Pierre, Martini, Audrey, Barthes, Laurent, Mallet, Cecile

“…Retrieval of rain from Passive Microwave radiometers data has been a challenge ever since the launch of the first Defense Meteorological Satellite Program in…”
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Using Deep Learning for Restoration of Precipitation Echoes in Radar Data by Lepetit, Pierre, Ly, Camille, Barthes, Laurent, Mallet, Cecile, Viltard, Nicolas, Lemaitre, Yvon, Rottner, Lucie

“…Raw data issued from meteorological radars are often corrupted by unwanted signals generically called clutter. Hills, tall buildings, atmospheric turbulence,…”
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Evolution of the Distribution of Upper-Tropospheric Humidity over the Indian Ocean: Connection with Large-Scale Advection and Local Cloudiness by Garot, Thomas, Brogniez, Hélène, Fallourd, Renaud, Viltard, Nicolas

“…The spatial and temporal distribution of upper-tropospheric humidity (UTH) observed by the Sounder for Atmospheric Profiling of Humidity in the Intertropics by…”
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Robust Observational Quantification of the Contribution of Mesoscale Convective Systems to Rainfall in the Tropics by Roca, R., Aublanc, J., Chambon, P., Fiolleau, T., Viltard, N.

“…Satellite estimation of precipitation and satellite-derived statistics of mesoscale convective systems (MCS) are analyzed conjunctively to quantify the…”
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An investigation of the error budget of tropical rainfall accumulation derived from merged passive microwave and infrared satellite measurements by Chambon, Philippe, Jobard, Isabelle, Roca, Rémy, Viltard, Nicolas

“…An ongoing change in the theoretical framework from deterministic to probabilistic satellite rainfall estimations emerges from applications that require an…”
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Evolution of the Distribution of Upper-Tropospheric Humidity over the Indian Ocean: Connection with Large-Scale Advection and Local Cloudiness by Garot, Thomas, Brogniez, Hélène, Fallourd, Renaud, Viltard, Nicolas

“…The spatial and temporal distribution of upper-tropospheric humidity (UTH) observed by the Sounder for Atmospheric Profiling of Humidity in the Intertropics by…”
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An error model for instantaneous satellite rainfall estimates: evaluation of BRAIN‐TMI over West Africa by Kirstetter, Pierre‐Emmanuel, Viltard, Nicolas, Gosset, Marielle

“…Characterising the error associated with satellite rainfall estimates based on space‐borne passive and active microwave measurements is a major issue for many…”
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Precipitation Estimates from SMOS Sea‐Surface Salinity by Supply, A., Boutin, J., Vergely, J.‐L., Martin, N., Hasson, A., Reverdin, G., Mallet, C., Viltard, N.

“…Two L‐Band (1.4 GHz) microwave radiometer missions, Soil Moisture and Ocean Salinity (SMOS) and Soil Moisture Active and Passive (SMAP) currently provide…”
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Dual-frequency spectral radar retrieval of snowfall microphysics: a physics-driven deep-learning approach by Billault-Roux, Anne-Claire, Ghiggi, Gionata, Jaffeux, Louis, Martini, Audrey, Viltard, Nicolas, Berne, Alexis

“…The use of meteorological radars to study snowfall microphysical properties and processes is well established, in particular via a few distinct techniques: the…”
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Ice microphysics retrieval in the convective systems of the Indian Ocean during the CINDY–DYNAMO campaign by Martini, Audrey, Viltard, Nicolas, Ellis, Scott M., Fontaine, Emmanuel

“…The last decades have shown the relevance of polarimetric radar measurements in various domains of Earth science to characterize different types of particles…”
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A new methodology for rain identification from passive microwave data in the Tropics using neural networks by Kacimi, Sahra, Viltard, Nicolas, Kirstetter, Pierre‐Emmanuel

“…The detection of rainfall remains a challenge for the monitoring of precipitation from space. A methodology is presented to identify rain events from…”
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AIRCRAFT OBSERVATIONS OF DRY AIR, THE ITCZ, CONVECTIVE CLOUD SYSTEMS, AND COLD POOLS IN MJO DURING DYNAMO by Chen, Shuyi S., Kerns, Brandon W., Guy, Nick, Jorgensen, David P., Delanoë, Julien, Viltard, Nicolas, Zappa, Christopher J., Judt, Falko, Lee, Chia-Ying, Savarin, Ajda

“…One of the most challenging problems in predicting the Madden–Julian oscillation (MJO) is the initiation of large-scale convective activity associated with the…”
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The Megha-Tropiques mission: a review after three years in orbit by Roca, Rémy, Brogniez, Hélène, Chambon, Philippe, Chomette, Olivier, Cloché, Sophie, Gosset, Marielle E., Mahfouf, Jean-Francois, Raberanto, Patrick, Viltard, Nicolas

“…The Megha-Tropiques mission is operating a suite of payloads dedicated to the documentation of the water and energy cycles in the intertropical region in a low…”
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Polarimetric signatures and hydrometeor classification of West African squall lines: Advances in understanding atmospheric processes over West Africa through the AMMA field campaign by EVARISTO, Raquel, SCIALOM, Georges, VILTARD, Nicolas, LEMAITRE, Yvon

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Impact of wind bogus and cloud‐ and rain‐affected SSM/I data on tropical cyclone analyses and forecasts by Montroty, Rémi, Rabier, Florence, Westrelin, Samuel, Faure, Ghislain, Viltard, Nicolas

“…In the context of its responsibilities as a Regional Specialised Meteorological Centre (RSMC) for the Southwest Indian Ocean, Météo‐France operates a tropical…”
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On the suitability of regional climate models for reconstructing climatologies by Tapiador, Francisco J., Angelis, Carlos F., Viltard, Nicolas, Cuartero, Fernando, de Castro, Manuel

“…This paper discusses the potential of Regional Climate Models (RCMs) as reanalysis tools by presenting a reconstruction of the European climate using several…”
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SUPPLEMENT: AIRCRAFT OBSERVATIONS OF DRY AIR, THE ITCZ, CONVECTIVE CLOUD SYSTEMS, AND COLD POOLS IN MJO DURING DYNAMO by Chen, Shuyi S., Kerns, Brandon W., Guy, Nick, Jorgensen, David P., Delanoë, Julien, Viltard, Nicolas, Zappa, Christopher J., Judt, Falko, Lee, Chia-Ying, Savarin, Ajda

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