Explanipedia

Hydrometeorological evaluation of two nowcasting systems for Mediterranean heavy precipitation events with operational considerations Open

Alexane Lovat, Béatrice Vincendon, Véronique Ducrocq · 2022

Heavy precipitation events and subsequent flash floods regularly affect the Mediterranean coastal regions. In these situations, forecasting rainfall and river discharges is crucial especially up to 6 h, which is a relevant lead time for em…

Overview towards improved understanding of the mechanisms leading to heavy precipitation in the western Mediterranean: lessons learned from HyMeX Open

Samira Khodayar, Silvio Davolio, Paolo Di Girolamo, Cindy Lebeaupin Brossier, Emmanouil Flaounas , et al. · 2021

Heavy precipitation (HP) constitutes a major meteorological threat in the western Mediterranean (WMed). Every year, recurrent events affect the area with fatal consequences for infrastructure and personal losses. Despite this being a well-…

A network of water vapor Raman lidars for improving heavy precipitation forecasting in southern France: introducing the WaLiNeAs initiative Open

Cyrille Flamant, Patrick Chazette, Olivier Caumont, Paolo Di Girolamo, Andreas Behrendt , et al. · 2021

Correction to: Modelling Mediterranean heavy precipitation events at climate scale: an object-oriented evaluation of the CNRM-AROME convection-permitting regional climate model Open

Cécile Caillaud, Samuel Somot, Antoinette Alias, Isabelle Bernard-Bouissières, Quentin Fumière , et al. · 2021

Overview towards improved understanding of the mechanisms leading to heavy precipitation in the Western Mediterranean: lessons learned from HyMeX Open

Samira Khodayar, Silvio Davolio, Paolo Di Girolamo, Cindy Lebeaupin Brossier, Emmanouil Flaounas , et al. · 2021

Heavy precipitation (HP) constitutes a major meteorological threat in the western Mediterranean (WMed). Every year, recurrent events affect the area with fatal consequences on infrastructure and personal losses. Despite this being a well-k…

Modelling Mediterranean heavy precipitation events at climate scale: an object-oriented evaluation of the CNRM-AROME convection-permitting regional climate model Open

Cécile Caillaud, Samuel Somot, Antoinette Alias, Isabelle Bernard-Bouissières, Quentin Fumière , et al. · 2021

Flash flood impacts nowcasting within the PICS project (2018-2022): End-users involvement and first results Open

Pierre Javelle, Olivier Payrastre, Brice Boudevillain, François Bourgin, François Bouttier , et al. · 2021

International audience

Hydrometeorological evaluation of two nowcasting systems forMediterranean heavy precipitation events with operationalconsiderations Open

Alexane Lovat, Béatrice Vincendon, Véronique Ducrocq · 2020

Heavy precipitation events and subsequent flash floods regularly affect the Mediterranean coastal regions. In these situations, forecasting rainfall and river discharges is crucial especially up to six hours, which is a relevant lead time …

Hectometric-scale simulations of a Mediterranean heavy-precipitation event during the Hydrological cycle in the Mediterranean Experiment (HyMeX) first Special Observation Period (SOP1) Open

Olivier Nuissier, F. Duffourg, Maxime Martinet, Véronique Ducrocq, Christine Lac · 2020

Offshore convection occurred over the Mediterranean sea on 26 October 2012 and was well documented during the first Special Observation Period (SOP1) of the Hydrological cycle in the Mediterranean Experiment (HyMeX). This paper analyses th…

The PICS project: towards an integrated warning system for the nowcasting of flash flood impacts Open

Olivier Caumont, Olivier Payrastre, Brice Boudevillain, François Bourgin, François Bouttier , et al. · 2020

International audience

Characterization of the air–sea exchange mechanisms during a Mediterranean heavy precipitation event using realistic sea state modelling Open

César Sauvage, Cindy Lebeaupin Brossier, Marie‐Noëlle Bouin, Véronique Ducrocq · 2020

This study investigates the mechanisms acting at the air–sea interface during a heavy precipitation event that occurred between 12 and 14 October 2016 over the north-western Mediterranean area and led to large amounts of rainfall (up to 30…

Hectometric scale simulations of a Mediterranean heavy precipitation event during HyMeX SOP1 Open

Olivier Nuissier, F. Duffourg, Maxime Martinet, Véronique Ducrocq, Christine Lac · 2019

Offshore convection occurred over the Mediterranean sea on 26 October 2012 and was well documented during the first Special Observation Period (SOP1) of the Hydrological cycle in the Mediterranean Experiment (HyMeX). This paper analyses th…

De l'incertitude dans un système de prévision d'ensemble des crues rapides méditerranéennes Open

Béatrice Vincendon, Simon Édouard, Véronique Ducrocq · 2019

International audience

Characterization of the air-sea exchanges mechanisms during a Mediterranean heavy precipitation event using realistic sea state modelling Open

César Sauvage, Cindy Lebeaupin Brossier, Marie‐Noëlle Bouin, Véronique Ducrocq · 2019

This study investigates the mechanisms acting at the air-sea interface during the heavy precipitation event that occurred between the 12–14 October 2016 over the north-western Mediterranean area, and that led to large amounts of rainfall (…

Impact of airborne cloud radar reflectivity data assimilation on kilometre-scale numerical weather prediction analyses and forecasts of heavy precipitation events Open

Mary Borderies, Olivier Caumont, Julien Delanoe͏̈, Véronique Ducrocq, Nadia Fourrié , et al. · 2019

This article investigates the potential of W-band radar reflectivity to improve the quality of analyses and forecasts of heavy precipitation events in the Mediterranean area. The “1D+3DVar” assimilation method, operationally employed to as…

Assimilation of wind data from airborne Doppler cloud-profiling radar in a kilometre-scale NWP system Open

Mary Borderies, Olivier Caumont, Julien Delanoe͏̈, Véronique Ducrocq, Nadia Fourrié · 2019

The article reports on the impact of the assimilation of wind vertical profile data in a kilometre-scale NWP system on predicting heavy precipitation events in the north-western Mediterranean area. The data collected in diverse conditions …

Assessing the impact of resolution and soil datasets on flash-flood modelling Open

Alexane Lovat, Béatrice Vincendon, Véronique Ducrocq · 2019

The present study assesses the impacts of two grid resolutions and the descriptors of soil texture and land cover on flash-flood modelling at local and basin scales. The ISBA-TOP coupled system, which is dedicated to Mediterranean flash-fl…

Impact of upstream moisture structure on a back-building convective precipitation system in south-eastern France during HyMeX IOP13 Open

Keun-Ok Lee, Cyrille Flamant, F. Duffourg, Véronique Ducrocq, Jean‐Pierre Chaboureau · 2018

The present study examines the impact of the environmental moisture structure in the lower troposphere (below 2 km above sea level, a.s.l.) on the precipitation development, observed in southern France during Intensive Observation Period (…

Impact of airborne cloud radar reflectivity data assimilation on kilometre-scale NWP analyses and forecasts of heavy precipitation events Open

Mary Borderies, Olivier Caumont, Julien Delanoe͏̈, Véronique Ducrocq, Nadia Fourrié , et al. · 2018

This article investigates the potential of W-band radar reflectivity to improve the quality of analyses and forecasts of heavy precipitation events in the Mediterranean area. The 1D + 3DVar assimilation method, operationally employed to as…

Assimilation of wind data from airborne Doppler cloud-profiling radar in a kilometre-scale NWP system Open

Mary Borderies, Olivier Caumont, Julien Delanoe͏̈, Véronique Ducrocq, Nadia Fourrié · 2018

The article reports on the impact of the assimilation of wind vertical profile data in a kilometre-scale NWP system on predicting heavy precipitation events in the north-western Mediterranean area. The data collected in diverse conditions …

Assessing the impact of resolution and soil datasets on flash-flood modelling Open

Alexane Lovat, Béatrice Vincendon, Véronique Ducrocq · 2018

The present study assesses the impacts of the grid resolution and the descriptors of soil texture and land cover on flash-flood modelling at local and basin scales. The ISBA-TOP coupled system, which is dedicated to Mediterranean flash-flo…

Impact of upstream moisture structure on a back-building convective precipitation system in south-eastern France during HyMeX IOP13 Open

Keun-Ok Lee, Cyrille Flamant, F. Duffourg, Véronique Ducrocq, Jean‐Pierre Chaboureau · 2018

The present study examines the impact of the environmental moisture structure in the lower troposphere (below 2 km above sea level, ASL) on the precipitation development, observed in southern France during intensive observation period 13 o…

6.2 ROLE OF THE SEA STATE ON THE AIR-SEA EXCHANGES DURING A MEDITERRANEAN HEAVY PRECIPITATION EVENT IN A KILOMETER-SCALE FORECAST SYSTEM Open

César Sauvage, Cindy Lebeaupin Brossier, Marie‐Noëlle Bouin, Véronique Ducrocq · 2018

International audience

Overview of the Meso-NH model version 5.4 and its applications Open

Christine Lac, Jean‐Pierre Chaboureau, Valéry Masson, Jean-Pierre Pinty, Pierre Tulet , et al. · 2018

This paper presents the Meso-NH model version 5.4. Meso-NH is an atmospheric non hydrostatic research model that is applied to a broad range of resolutions, from synoptic to turbulent scales, and is designed for studies of physics and chem…

Overview of the Meso-NH model version 5.4 and its applications Open

Christine Lac, Jean‐Pierre Chaboureau, Valéry Masson, Jean‐Pierre Pinty, Pierre Tulet , et al. · 2018

This paper presents the Meso-NH model version 5.4. Meso-NH is an atmospheric non hydrostatic research model that is applied to a broad range of resolutions, from synoptic to turbulent scales, and is designed for studies of physics and chem…

Multiscale Observations of Deep Convection in the Northwestern Mediterranean Sea During Winter 2012–2013 Using Multiple Platforms Open

Pierre Testor, Anthony Bosse, Loïc Houpert, Félix Margirier, Laurent Mortier , et al. · 2017

During winter 2012–2013, open‐ocean deep convection which is a major driver for the thermohaline circulation and ventilation of the ocean, occurred in the Gulf of Lions (Northwestern Mediterranean Sea) and has been thoroughly documented th…

Simulation of W‐band radar reflectivity for model validation and data assimilation Open

Mary Borderies, Olivier Caumont, Clotilde Augros, Émilie Bresson, Julien Delanoe͏̈ , et al. · 2017

This article describes a reflectivity forward operator developed for the validation and assimilation of W‐band radar data into the regional AROME class of numerical weather prediction models. The forward operator is consistent with the ARO…

SURFEX v8.0 interface with OASIS3-MCT to couple atmosphere with hydrology, ocean, waves and sea-ice models, from coastal to global scales Open

Aurore Voldoire, Bertrand Decharme, Joris Pianezze, Cindy Lebeaupin Brossier, Florence Sevault , et al. · 2017

This study presents the principles of the new coupling interface based on the SURFEX multi-surface model and the OASIS3-MCT coupler. As SURFEX can be plugged into several atmospheric models, it can be used in a wide range of applications, …

Role of moisture patterns in the backbuilding formation of HyMeX IOP13 heavy precipitation systems Open

F. Duffourg, Keun-Ok Lee, Véronique Ducrocq, Cyrille Flamant, Patrick Chazette , et al. · 2017

Mediterranean regions are regularly affected by heavy convective precipitation. During the Hydrological Cycle in the Mediterranean Experiment Intensive Observation Period 13 (HyMeX‐IOP13), the multi‐platform observation strategy allowed an…

High‐resolution air–sea coupling impact on two heavy precipitation events in the Western Mediterranean Open

Romain Rainaud, Cindy Lebeaupin Brossier, Véronique Ducrocq, Hervé Giordani · 2017

The Mediterranean Sea is an important source of heat and moisture for heavy precipitation events (HPEs). Moreover, the ocean mixed layer (OML) evolves rapidly under such intense events. Whereas short‐term numerical weather prediction syste…

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