Journal articles
A comparison of airborne in situ cloud microphysical measurement with ground-based C-band radar observations in deep stratiform regions of African squall lines
Elise Drigeard
1
Emmanuel Fontaine
1
Wolfram Wobrock
1
Alfons Schwarzenboeck
1
Christophe Duroure
1
E.R. Williams
2
B. Russell
2
Alain Protat
3
Julien Delanoë
4
Frédéric Cazenave
5
Marielle Gosset
5
Elise Drigeard 1
Author
Emmanuel Fontaine 1
Author
Wolfram Wobrock 1
Mail :
Author IdHAL : wolfram-wobrock
Alfons Schwarzenboeck 1
Mail :
Author IdHAL : alfons-schwarzenboeck ORCID : https://orcid.org/0000-0002-8386-5506
1
LaMP - Laboratoire de météorologie physique (bat. Physique 5 - 3ème étg / 24 Av des landais / 63177 Aubière Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6016 (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- UBP - Université Blaise Pascal - Clermont-Ferrand 2 : UMR6016 (34, avenue Carnot - BP 185 / 63006 Clermont-Ferrand cedex - France)
2
MIT Parsons Laboratory (Cambridge, Massachusetts - United States)
- MIT - Massachusetts Institute of Technology (77 Massachusetts Ave, Cambridge, MA 02139 - United States)
3
CAWCR - Centre for Australian Weather and Climate Research (700, Collins Street, Docklands, Melbourne, VIC 3008, Australia - Australia)
4
SPACE - LATMOS (France)
- LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales (11 boulevard d'Alembert
Quartier des Garennes
78280 - Guyancourt - France)
- UVSQ - Université de Versailles Saint-Quentin-en-Yvelines : UMR8190 (55 avenue de Paris - 78035 Versailles cedex - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 : UMR8190 (4 place Jussieu - 75005 Paris - France)
- INSU - CNRS - Institut national des sciences de l'Univers : UMR8190 (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR8190 (France)
5
LTHE - Laboratoire d'étude des transferts en hydrologie et environnement (ENSHMG - Domaine Universitaire 1023-1025 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5564 (France)
- INPG - Institut National Polytechnique de Grenoble (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- OSUG - Observatoire des Sciences de l'Univers de Grenoble (414 Rue de la piscine - BP 53 38041 GRENOBLE CEDEX 9 - France)
- USMB [Université de Savoie] [Université de Chambéry] - Université Savoie Mont Blanc (27, rue Marcoz - 73000 Chambéry - France)
- Grenoble INP - Institut polytechnique de Grenoble - Grenoble Institute of Technology (46 avenue Félix Viallet 38031 Grenoble Cedex 1 - France)
- UGA [2020-....] - Université Grenoble Alpes [2020-....] (Adresse CS 40700 - 38058 Grenoble cedex - France)
- IRSTEA - Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (France)
- UJF - Université Joseph Fourier - Grenoble 1 (BP 53 - 38041 Grenoble Cedex 9 - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- CNRS - Centre National de la Recherche Scientifique : UMS832 (France)
- UGA - Université Grenoble Alpes (CS 40700 - 38058 Grenoble cedex - France)
Abstract : This study addresses clouds with significant ice water content in the stratiform regions downwind of the convective cores of African squall lines in the framework of the French–Indian satellite project MEGHA-TROPIQUES, observed in August 2010 (MT2010) next to Niamey (2°W, 13.5°N) in the southern western part of the Niger. The objectives included comparing the IWC-Z relationship for precipitation radars in deep stratiform anvils, collocating reflectivity observed from ground radar with the calculated reflectivity from in-situ microphysics for all aircraft locations inside the radar range and interpreting the role of the large ice crystals on the reflectivity of cm radars by the analysis of their microphysical characteristics as ice crystals larger 5 mm frequently occurred. It was found that in the range of 20-30 dBZ IWC and C-band reflectivity are not really correlated. Cloud regions with high IWC caused by important crystal number concentrations can lead to the same reflectivity factor as cloud regions with low IWC formed by a few millimeter sized ice crystals.
Document type :
Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01175734
Contributor : Catherine Cardon <>
Submitted on : Sunday, July 12, 2015 - 2:45:26 PM
Last modification on : Friday, July 3, 2020 - 9:44:36 AM
Contributor : Catherine Cardon <>
Submitted on : Sunday, July 12, 2015 - 2:45:26 PM
Last modification on : Friday, July 3, 2020 - 9:44:36 AM
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- HAL Id : insu-01175734, version 1
- DOI : 10.1175/JAMC-D-14-0262.1
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INSU | CNRS | OSUG | LTHE | UPMC | UVSQ | LAMP | UGA | LATMOS | PRES_CLERMONT | UNIV-PARIS-SACLAY | SORBONNE-UNIVERSITE | SU-SCIENCES | IRSTEA | UNIV-SAVOIE | INRAE
Citation
Elise Drigeard, Emmanuel Fontaine, Wolfram Wobrock, Alfons Schwarzenboeck, Christophe Duroure, et al.. A comparison of airborne in situ cloud microphysical measurement with ground-based C-band radar observations in deep stratiform regions of African squall lines. Journal of Applied Meteorology and Climatology, American Meteorological Society, 2015, 54 (12), pp.2461-2477. ⟨10.1175/JAMC-D-14-0262.1⟩. ⟨insu-01175734⟩
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