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<identifier>oai:HAL:hal-00572576v1</identifier>
<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>The water vapour intercomparison effort in the framework of the Convective and Orographically-induced Precipitation Study: airborne-to-ground-based and airborne-to-airborne lidar systems</title>
<creator>Bhawar, R.</creator>
<creator>Di Girolamo, P.</creator>
<creator>Summa, D.</creator>
<creator>Flamant, Cyrille</creator>
<creator>Althausen, D.</creator>
<creator>Behrendt, A.</creator>
<creator>Kiemle, C.</creator>
<creator>Bosser, P.</creator>
<creator>Cacciani, M.</creator>
<creator>Champollion, Cedric</creator>
<creator>Di Iorio, T.</creator>
<creator>Engelmann, R.</creator>
<creator>Herold, C.</creator>
<creator>Müller, D.</creator>
<creator>Pal, S.</creator>
<creator>Wirth, M.</creator>
<creator>Wulfmeyer, V.</creator>
<contributor>Dipartimento di Ingegneria e Fisica dell'Ambiente (Difa) ; Universita degli Studi della Basilicta</contributor>
<contributor>SPACE - LATMOS ; Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) - Université Pierre et Marie Curie - Paris 6 (UPMC) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS) - Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) - Université Pierre et Marie Curie - Paris 6 (UPMC) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Leibniz Institute for Tropospheric Research (TROPOS)</contributor>
<contributor>Institut für Physik und Meteorologie [Stuttgart] (IPM) ; Universität Hohenheim</contributor>
<contributor>Deutsches Zentrum für Luft- und Raumfahrt (DLR)</contributor>
<contributor>Laboratoire d'Opto-électronique et de Micro-Informatique (LOEMI) ; Institut National de l'Information Géographique et Forestière [IGN] (IGN)</contributor>
<contributor>Dipartimento di Fisica [Roma La Sapienza] ; Università degli Studi di Roma "La Sapienza" [Rome]</contributor>
<contributor>Risques ; Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS) - Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<description>International audience</description>
<source>ISSN: 0035-9009</source>
<source>Quarterly Journal of the Royal Meteorological Society</source>
<publisher>Wiley</publisher>
<identifier>hal-00572576</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00572576</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00572576</source>
<source>Quarterly Journal of the Royal Meteorological Society, Wiley, 2011, 137 (S1), pp.325-348. 〈10.1002/qj.697〉</source>
<identifier>DOI : 10.1002/qj.697</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/qj.697</relation>
<language>en</language>
<subject lang=en>Water vapour</subject>
<subject lang=en>DIAL</subject>
<subject lang=en>Raman lidar</subject>
<subject lang=en>Bias</subject>
<subject lang=en>Root-mean-square deviation</subject>
<subject>[SDU.STU.ME] Sciences of the Universe [physics]/Earth Sciences/Meteorology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>An intensive water vapour intercomparison effort, involving airborne and ground-based water vapour lidar systems, was carried out in the framework of the COPS experiment. The main objective of this paper is to provide accurate error estimates for these systems. Comparisons between the ground-based Raman lidar BASIL and the airborne CNRS DIAL (Differential Absorption Lidar) indicate a mean relative bias between the two sensors, calculated with respect to the mean value of −2.13% (−0.034 g kg−1) in the altitude region 0.5-3.5 km, while comparisons between BASIL and the airborne DLR DIAL lead to a mean relative bias of 1.87% (0.018 g kg−1) in this same altitude region. Comparisons between the ground-based UHOH DIAL and the CNRS DIAL indicate a bias of −3.2% (−0.37 × 1022 m−3) in the altitude range 1.5-4.5 km, while comparisons between the UHOH DIAL and the DLR DIAL indicate a bias of 0.83% (0.06 × 1022 m−3) in this same altitude range. Based on the available comparisons between the ground-based Raman lidar BERTHA and the CNRS DIAL, the mean relative bias is found to be −4.37% (−0.123 g kg−1) in the altitude region 0.5-4.5 km. Comparisons between the ground-based IGN Raman lidar and the CNRS DIAL indicate a bias of 3.18% (0.55 g kg−1) in the altitude range from 0.5 to 4.5 km, while comparisons between the CNRS DIAL and DLR DIAL result in a mean relative bias of 3.93% (1.1 × 1022 m−3) in the altitude interval 0.5-4.0 km. Based on the available statistics of comparisons, benefiting from the fact that the CNRS DIAL was able to be compared with all other lidar systems, and putting equal weight on the data reliability of each instrument, overall relative values for BASIL, BERTHA, IGN Raman lidar, UHOH DIAL, DLR DIAL, and CNRS DIAL, with respect to the mean value, are found to be −0.38, −2.60, 4.90, −1.43, −2.23 and 1.72%, respectively.</description>
<date>2011</date>
</dc>
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