The French component of the FENNEC Saharan Climate project 2011 Special Observing Period

Cyrille Flamant; J.-P. Chaboureau; C. Kocha; C. Lavaysse; K. Schepanski; P. Chazette; Olivier Bock; B. Marticorena; P. Tulet; Jacques Pelon; F. Marnas; M. Mokhtari; J.-P. Lafore; R. Roehrig; Idrissi A. Koulali; C. Tsamalis; A. Chedin

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ADS Bibliographic id: 2012EGUGA..14.8306F

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The French component of the FENNEC Saharan Climate project 2011 Special Observing Period
Flamant C., Chaboureau J.-P., Kocha C., Lavaysse C., Schepanski K., Chazette P., Bock O., Marticorena B., Tulet P., Pelon J. et al
EGU General Assembly 2012, Vienna : Autriche (2012) - http://hal.archives-ouvertes.fr/hal-00712717

Publication type:

Conference, seminar, workshop communication

Subject:

Physics/Physics/Atmospheric and Oceanic Physics

Sciences of the Universe/Earth Sciences/Climatology

Environmental Sciences/Global Changes

Title:

The French component of the FENNEC Saharan Climate project 2011 Special Observing Period

Author(s):

Cyrille Flamant ^1, 2, 3, J.-P. Chaboureau ⁴, C. Kocha ⁵, C. Lavaysse ⁶, K. Schepanski ⁷, P. Chazette ⁸, Olivier Bock ⁹, B. Marticorena ¹⁰, P. Tulet ¹¹, Jacques Pelon ^1, 2, 3, F. Marnas ¹², M. Mokhtari, J.-P. Lafore ⁵, R. Roehrig ⁵, Idrissi A. Koulali, C. Tsamalis, A. Chedin ¹²

Laboratory:

1:	Institut Pierre-Simon-Laplace (IPSL)

	http://www.ipsl.jussieu.fr/

	CNRS : FR636 – Institut de recherche pour le développement [IRD] – CEA – CNES – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines – Ecole normale supérieure de Paris - ENS Paris

	4 Place Jussieu 75252 PARIS CEDEX 05

	France

2:	Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS)

	http://www.latmos.ipsl.fr

	CNRS : UMR8190 – Université Pierre et Marie Curie [UPMC] - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines – INSU

	France

3:	Université Pierre et Marie Curie - Paris 6 (UPMC)

	http://www.upmc.fr/

	Université Pierre et Marie Curie [UPMC] - Paris VI

	4 place Jussieu - 75005 Paris

	France

4:	Laboratoire d'aérologie (LA)

	http://www.aero.obs-mip.fr/

	CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III

	14 avenue Edouard Belin 31400 Toulouse

	France

5:	Groupe d'étude de l'atmosphère météorologique (CNRM-GAME)

	http://www.cnrm.meteo.fr

	CNRS : URA1357 – INSU – Météo France

	METEO FRANCE CNRM 42 Av Gaspard Coriolis 31057 TOULOUSE CEDEX 1

	France

6:	Department of Atmospheric and Oceanic Sciences, McGill University

	McGill University

	Montreal

	Canada

7:	School of Earth and Enrironment [Leeds] (SEE)

	http://www.environment.leeds.ac.uk/see/home/

	University of Leeds

	Maths/Earth and Environment Building The University of Leeds Leeds. LS2 9JT

	United Kingdom

8:	Laboratoire des Sciences du Climat et l'Environnement

	CNRS : UMR1572 – CEA – IPSL

	France

9:	Laboratoire de Recherche en Géodésie, IGN (LAREG)

	http://recherche.ign.fr/labos/lareg/

	Institut Géographique National

	Champs-sur-Marne, 77455 Marne-la-Vallée

	France

10:	Laboratoire inter-universitaire des systèmes atmosphèriques (LISA)

	http://www.lisa.univ-paris12.fr/

	CNRS : UMR7583 – INSU – Université Paris VII - Paris Diderot – Université Paris-Est Créteil Val-de-Marne (UPEC)

	61 Av du général de Gaulle 94010 CRETEIL CEDEX

	France

11:	Laboratoire de l'Atmosphère et des Cyclones (LACy)

	http://lacy.univ-reunion.fr/

	CNRS : UMR8105 – Météo France – Université de la Réunion

	Faculté des Sciences et techniques - Université de La Réunion 15 avenue René Cassin CS92003 97744 SAINT DENIS CEDEX 9

	France

12:	Laboratoire de Météorologie Dynamique (LMD)

	http://www.lmd.jussieu.fr/

	CNRS : UMR8539 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI – Polytechnique - X – Ecole normale supérieure de Paris - ENS Paris

	LMD ENS 24 Rue Lhomond 75231 Paris Cedex 05

	France

Research team:

space

Abstract:

The central Sahara has one of the most extreme climates on Earth. During the northern summer months, a large low pressure system caused by intense solar heating develops over a huge, largely uninhabited expanse of northern Mali, southern Algeria and eastern Mauritania. This Saharan heat low plays a pivotal role in the West African Monsoon. Based on this, the interested French, British and German communities have decided to propose the FENNEC project which aims at (i) characterizing the Saharan atmospheric boundary layer, (ii) evaluating its representation in regional and global models, and (iii) improving "aerosol" products issued from space-borne observations. A key element of this programme was the organization of an international field campaign in June 2011 over the Saharan heat low region, which will include both ground-based and airborne detachments. The Special Observing Period component of FENNEC-France included the implementation of the SAFIRE Falcon 20 to conduct research on the atmospheric boundary layer and the dust cycle of the Sahara, the installation of a remote sensing station in southern Spain, equipped with a backscatter lidar and a sunphotometer, to study the transport of desert dust to Europe, as well as a couple of GPS stations installed in southern Morocco to investigate the moisture inflow from the Atlantic Ocean into the Sahara. For the first time, the ALADIN and AROME models (5 and 24 km grid spacing, respectively) have been implemented operationally to provide forecasts of dust events over the Sahara and parts of the Sahel in June 2011 to assist in planning for airborne operations. This effort was complemented by the forecasts made with the Meso-NH model (5 and 20 km resolution). During the SOP period, the ground-based, airborne and space-borne observations have documented the evolution of dynamic properties of thermodynamic and the atmospheric boundary layer Saharan Africa (Mauritania and Mali) during the installation phase of the Saharan heat low west of the continent as well as the increase in aerosol loading associated with the phase shift of the heat low from east to west. During this period, episodes of intense uplift of desert aerosols associated with various dynamic phenomena (fronts, "Mediterannean surges", "Atlantic inflow" of low-level jets, etc ...) have also been documented as well as the export of dust over the Atlantic Ocean. An overview of implementation plan and of the first observational and modelling results acquired during the time of the SOP will be presented.

Fulltext language:

English

Audience:

not specified

Conference or book title:

EGU General Assembly 2012

Conference date:

2012-04

City:

Vienna

Country:

Austria


hal-00712717, version 1
http://hal.archives-ouvertes.fr/hal-00712717
oai:hal.archives-ouvertes.fr:hal-00712717
From: Catherine Cardon <>
Submitted on: Wednesday, 27 June 2012 21:19:30
Updated on: Wednesday, 27 June 2012 21:19:30