Sensor and Platform Technologies

Introduction to the Maïdo Lidar Calibration Campaign dedicated to the validation of upper air meteorological parameters

[+] Author Affiliations
Philippe Keckhut, Jacques Porteneuve, Alain Hauchecorne, Sergey Khaykin

CNRS, UVSQ UniverSud Paris, UPMC Paris-Sorbonne, UMR8190, Laboratoire Atmosphères, Milieux, Observations Spatiales-IPSL, Guyancourt 78289, France

Yann Courcoux

CNRS, UVSQ UniverSud Paris, UPMC Paris-Sorbonne, UMR8190, Laboratoire Atmosphères, Milieux, Observations Spatiales-IPSL, Guyancourt 78289, France

CNRS, Université de la Réunion, UMS3365, Observatoire des Sciences de l’Univers de La Réunion, Saint Denis de la Réunion 97744, France

DGA, Maîtrise de l’information, Rennes 29240, France

Jean-Luc Baray

CNRS, Université de la Réunion-Météo-France, UMR8105, Laboratoire de l’Atmosphère et des Cyclones, Saint Denis de la Réunion 97744, France

CNRS, Université Blaise Pascal, UMR6016, CNRS-Observatoire de Physique du Globe de Clermont-Ferrand, Laboratoire de Météorologie Physique, Clermont-Ferrand 63171, France

Hélène Vérèmes, Françoise Posny, Stephanie Evan, Jimmy Leclair-de-Bellevue

CNRS, Université de la Réunion-Météo-France, UMR8105, Laboratoire de l’Atmosphère et des Cyclones, Saint Denis de la Réunion 97744, France

Davide Dionisi

CNRS, UVSQ UniverSud Paris, UPMC Paris-Sorbonne, UMR8190, Laboratoire Atmosphères, Milieux, Observations Spatiales-IPSL, Guyancourt 78289, France

Consiglio Nazionale delle Ricerche, Istituto di Scienze dell’Atmosfera e del Clima, Roma 00133, Italy

Jean-Pierre Cammas, Guillaume Payen, Franck Gabarrot, Valentin Duflot

CNRS, Université de la Réunion, UMS3365, Observatoire des Sciences de l’Univers de La Réunion, Saint Denis de la Réunion 97744, France

Rolf Rüfenacht, Brigitte Tschanz, Niklaus Kämpfer

University of Bern, Institute of Applied Physics, 3012 Bern, Switzerland

Philippe Ricaud

CNRS, Meteo-France, UMR 3589, Centre National de Recherches Météorologiques, Toulouse, France

Abdel Abchiche

CNRS, INSU, Division Technique, Meudon 91195, France

J. Appl. Remote Sens. 9(1), 094099 (Apr 23, 2015). doi:10.1117/1.JRS.9.094099
History: Received October 7, 2014; Accepted March 19, 2015
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Abstract.  The first operations at the new High-altitude Maïdo Observatory at La Réunion began in 2013. The Maïdo Lidar Calibration Campaign (MALICCA) was organized there in April 2013 and has focused on the validation of the thermodynamic parameters (temperature, water vapor, and wind) measured with many instruments including the new very large lidar for water vapor and temperature profiles. The aim of this publication consists of providing an overview of the different instruments deployed during this campaign and their status, some of the targeted scientific questions and associated instrumental issues. Some specific detailed studies for some individual techniques were addressed elsewhere. This study shows that temperature profiles were obtained from the ground to the mesopause (80 km) thanks to the lidar and regular meteorological balloon-borne sondes with an overlap range showing good agreement. Water vapor is also monitored from the ground to the mesopause by using the Raman lidar and microwave techniques. Both techniques need to be pushed to their limit to reduce the missing range in the lower stratosphere. Total columns obtained from global positioning system or spectrometers are valuable for checking the calibration and ensuring vertical continuity. The lidar can also provide the vertical cloud structure that is a valuable complementary piece of information when investigating the water vapor cycle. Finally, wind vertical profiles, which were obtained from sondes, are now also retrieved at Maïdo from the newly implemented microwave technique and the lidar. Stable calibrations as well as a small-scale dynamical structure are required to monitor the thermodynamic state of the middle atmosphere, ensure validation of satellite sensors, study the transport of water vapor in the vicinity of the tropical tropopause and study their link with cirrus clouds and cyclones and the impact of small-scale dynamics (gravity waves) and their link with the mean state of the mesosphere.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Philippe Keckhut ; Yann Courcoux ; Jean-Luc Baray ; Jacques Porteneuve ; Hélène Vérèmes, et al.
"Introduction to the Maïdo Lidar Calibration Campaign dedicated to the validation of upper air meteorological parameters", J. Appl. Remote Sens. 9(1), 094099 (Apr 23, 2015). ; http://dx.doi.org/10.1117/1.JRS.9.094099


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