Academic literature on the topic 'Météorologie – Observations – Laboratoires'

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Journal articles on the topic "Météorologie – Observations – Laboratoires"

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Le Treut, Hervé, and Lionel Charles. "Regard historique sur la recherche climatique, entre observations et modèles." Pollution atmosphérique, NS 6 (June 1, 2013): 9–22. http://dx.doi.org/10.54563/pollution-atmospherique.7549.

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À l’heure où la problématique climatique connaît une inflexion après les bruyantes controverses et remises en question qui ont marqué ces dernières années, il nous a semblé intéressant d’ouvrir ce numéro par un entretien avec Pierre Morel. Initiateur de la recherche physique sur le climat en France, il a créé en 1968 le Laboratoire de Météorologie Dynamique qui est aujourd’hui, au sein de l’IPSL, le pivot de la recherche française dans ce domaine, et dont il a assuré la direction jusqu’en 1975. La carrière de Pierre Morel s’est pour une large part déroulée dans un cadre international. Normalie
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Olivier, Chomette, Raymond Armante, Cyril Crevoisier, et al. "CH4 IPDA Lidar mission data simulator and processor for MERLIN: prototype development at LMD/CNRS/Ecole Polytechnique." EPJ Web of Conferences 176 (2018): 02016. http://dx.doi.org/10.1051/epjconf/201817602016.

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The MEthane Remote sensing Lidar missioN (MERLIN), currently in phase C, is a joint cooperation between France and Germany on the development of a spatial Integrated Path Differential Absorption (IPDA) LIDAR (LIght Detecting And Ranging) to conduct global observations of atmospheric methane. This presentation will focus on the status of a LIDAR mission data simulator and processor developed at LMD (Laboratoire de Météorologie Dynamique), Ecole Polytechnique, France, for MERLIN to assess the performances in realistic observational situations.
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Joussaume, Sylvie. "Simulation of Airborne Impurity Cycles Using Atmospheric General Circulation Models." Annals of Glaciology 7 (1985): 131–37. http://dx.doi.org/10.3189/s0260305500006042.

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Atmospheric general circulation models are believed to be appropriate tools for studying airborne impurity cycles in order to supplement observations and to improve our knowledge of gaseous and particulate pollutant cycles in the atmosphere. The main aspects of the modelling of tracer cycles are reviewed and illustrated by two particular examples: desert dust particles in the 1 μm range and water isotope species HDO and H218O. Some results from a first simulation including desert dust and water isotope cycles using the model developed at the Laboratoire de Météorologie Dynamique (LMD) are pres
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Joussaume, Sylvie. "Simulation of Airborne Impurity Cycles Using Atmospheric General Circulation Models." Annals of Glaciology 7 (1985): 131–37. http://dx.doi.org/10.1017/s0260305500006042.

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Atmospheric general circulation models are believed to be appropriate tools for studying airborne impurity cycles in order to supplement observations and to improve our knowledge of gaseous and particulate pollutant cycles in the atmosphere. The main aspects of the modelling of tracer cycles are reviewed and illustrated by two particular examples: desert dust particles in the 1 μm range and water isotope species HDO and H2 18O. Some results from a first simulation including desert dust and water isotope cycles using the model developed at the Laboratoire de Météorologie Dynamique (LMD) are pre
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Diatta, Samo, Frédéric Hourdin, Amadou Thierno Gaye, and Nicolas Viltard. "Comparison of Rainfall Profiles in the West African Monsoon as Depicted by TRMM PR and the LMDZ Climate Model." Monthly Weather Review 138, no. 5 (2010): 1767–77. http://dx.doi.org/10.1175/2009mwr3092.1.

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Abstract Vertical rainfall profiles obtained with TRMM-PR 2A25 standard products are compared with rain profiles deduced from the Laboratoire de Météorologie Dynamique second generation global climate model (LMDZ, the Z stands for zoom capability) with two parameterization schemes: Emanuel’s and Tiedke’s. This paper focuses on the low layers of the atmosphere over West Africa during the monsoon [June–September (JJAS)]. The precipitation decrease above 4 km is systematically not represented in rainfall profiles generated by Emanuel’s parameterization scheme. However, Emanuel’s scheme shows a de
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Ramstein, G., F. Fluteau, and V. Masson. "Existence of an ice cap during the mid-Cretaceous period (120–90 Ma): an AGCM investigation." Annals of Glaciology 25 (1997): 198–202. http://dx.doi.org/10.3189/s0260305500014038.

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Many questions remain concerning whether or not an ice cap existed during the mid-Cretaceous period (120–90 Ma). Other than data and observations from ice-rafted materials, atmospheric general circulation models (AGCMs) may be appropriate tools to investigate whether changes in atmospheric composition, land-sea distribution, or oceanic circulation (used as boundary conditions to constrain the model), provide the climatic conditions that enable ice caps to be formed.This study uses an AGCM developed by the Laboratoire de Météorologie Dynamique (LMD) to perform a set of numerical sensitivity exp
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Ramstein, G., F. Fluteau, and V. Masson. "Existence of an ice cap during the mid-cretaceous period (120–90 Ma): an AGCM investigation." Annals of Glaciology 25 (1997): 198–202. http://dx.doi.org/10.1017/s0260305500014038.

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Many questions remain concerning whether or not an ice cap existed during the mid-Cretaceous period (120–90 Ma). Other than data and observations from ice-rafted materials, atmospheric general circulation models (AGCMs) may be appropriate tools to investigate whether changes in atmospheric composition, land-sea distribution, or oceanic circulation (used as boundary conditions to constrain the model), provide the climatic conditions that enable ice caps to be formed. This study uses an AGCM developed by the Laboratoire Météorologie Dynamique (LMD) to perform a set of numerical sensitivity exper
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Verma, S., O. Boucher, M. S. Reddy, et al. "Tropospheric distribution of sulphate aerosol mass and number concentration during INDOEX-IFP and its transport over the Indian Ocean: a GCM study." Atmospheric Chemistry and Physics Discussions 5, no. 1 (2005): 395–436. http://dx.doi.org/10.5194/acpd-5-395-2005.

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Abstract. An interactive sulphate aerosol chemistry module has been incorporated in the Laboratoire de Météorologie Dynamique General Circulation Model (LMD-GCM) to simulate the sulphur chemistry during the Indian Ocean Experiment (INDOEX) Intensive Field Phase-1999 (INDOEX-IFP). The originality of this module is its ability to predict particle mass and number concentration for the Aitken and accumulation modes. The model qualitatively reproduces the spatial patterns of observations on sulphate aerosol during INDOEX. On the basis of size distribution retrieved from the observations made along
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Coindreau, O., F. Hourdin, M. Haeffelin, A. Mathieu, and C. Rio. "Assessment of Physical Parameterizations Using a Global Climate Model with Stretchable Grid and Nudging." Monthly Weather Review 135, no. 4 (2007): 1474–89. http://dx.doi.org/10.1175/mwr3338.1.

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Abstract The Laboratoire de Météorologie Dynamique atmospheric general circulation model with zooming capability (LMDZ) has been used in a nudged mode to enable comparison of model outputs with routine observations and evaluate the model physical parameterizations. Simulations have been conducted with a stretched grid refined over the vicinity of Paris, France, where observations, collected at the Trappes station (Météo-France) and at the Site Instrumental de Recherche par Télédétection Atmosphérique observatory, are available. For the purpose of evaluation of physical parameterizations, the l
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Remaud, Marine, Frédéric Chevallier, Anne Cozic, Xin Lin, and Philippe Bousquet. "On the impact of recent developments of the LMDz atmospheric general circulation model on the simulation of CO<sub>2</sub> transport." Geoscientific Model Development 11, no. 11 (2018): 4489–513. http://dx.doi.org/10.5194/gmd-11-4489-2018.

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Abstract. The quality of the representation of greenhouse gas (GHG) transport in atmospheric general circulation models (GCMs) drives the potential of inverse systems to retrieve GHG surface fluxes to a large extent. In this work, the transport of CO2 is evaluated in the latest version of the Laboratoire de Météorologie Dynamique (LMDz) GCM, developed for the Climate Model Intercomparison Project 6 (CMIP6) relative to the LMDz version developed for CMIP5. Several key changes have been implemented between the two versions, which include a more elaborate radiative scheme, new subgrid-scale param
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Dissertations / Theses on the topic "Météorologie – Observations – Laboratoires"

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Demortier, Alan. "Utilisation des données de capteurs météorologiques connectés pour la prévision numérique à courte échéance de phénomènes de méso-échelle." Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP072.

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L'assimilation de données à méso-échelle permet d'initialiser les modèles régionaux de prévision numérique du temps, en combinant une ébauche du modèle avec les observations disponibles notamment à cette échelle. L'émergence de stations météorologiques connectées fournit une source d'observations d'opportunité permettant de densifier le réseau d'observation de surface. Ces nouvelles stations permettent d'observer à fine échelle la convection profonde près de la surface (Mandement, 2020). Cette thèse propose ainsi d’explorer la capacité de ces observations d'opportunité de température, d’humidi
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