La MétéorologiePub Date : 1900-01-01DOI: 10.37053/lameteorologie-2022-0093
S. Le Moal, Adrien Mauss
{"title":"Juillet 2022 : Glaces à l'islandaise ; Feux de La Teste-de-Buch","authors":"S. Le Moal, Adrien Mauss","doi":"10.37053/lameteorologie-2022-0093","DOIUrl":"https://doi.org/10.37053/lameteorologie-2022-0093","url":null,"abstract":"","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121447692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
La MétéorologiePub Date : 1900-01-01DOI: 10.37053/lameteorologie-2022-0060
Jean-Luc Baray, Laure Deguillaume
{"title":"Le site instrumenté CO-PDD dédié à la surveillance de l'atmosphère","authors":"Jean-Luc Baray, Laure Deguillaume","doi":"10.37053/lameteorologie-2022-0060","DOIUrl":"https://doi.org/10.37053/lameteorologie-2022-0060","url":null,"abstract":"Le site instrumenté Cézeaux-Aulnat Opme Puy de Dôme (CO-PDD) est une plateforme d'observation de l'atmosphère labellisée à l'échelle nationale par le CNRS et le Cnes, impliquée dans des réseaux internationaux pour le climat tels que GAW (Global Atmospheric Watch) et dans des infrastructures de recherche telles que Actris (Aerosol Cloud and Trace gases Research Infrastructure) ou Icos (Integrated Carbon Observation System). Composé de quatre stations de mesures in situ et par télédétection dans la région clermontoise, il produit sur le long terme des mesures de la composition atmosphérique gazeuse et particulaire, des nuages et des précipitations en incluant la dimension verticale. Sa localisation géographique lui permet d'échantillonner des masses d'air présentant des origines très diverses, dans des conditions d'ennuagement très fréquentes. Cela en fait un site exceptionnel pour caractériser la variabilité environnementale de la composition atmosphérique.\u0000 The instrumented site Cézeaux-Aulnat Opme Puy de Dôme (COPDD) is an atmosphere observation platform labeled at the national level by CNRS and CNES institutes and involved in international climate networks such as GAW (Global Atmospheric Watch) and in research infrastructures such as ACTRIS (Aerosol Cloud and Trace gas Research Infrastructure) or ICOS (Integrated Carbon Observation System). Composed of four in situ and remote sensing measurement points around the city of Clermont-Ferrand, it produces long-term measurements of gaseous and aerosol atmospheric composition, clouds and precipitation, including the vertical dimension. Its geographical location allows various origin air masses to be sampled, in very frequent cloudy conditions. This makes it an exceptional site for characterizing the environmental variability of the atmospheric composition.","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134379550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
La MétéorologiePub Date : 1900-01-01DOI: 10.37053/lameteorologie-2023-0005
Alexis Le Pichon, Constantino Listowski, Christine Lac
{"title":"Il y a un an, l'éruption du volcan Hunga Tonga ébranlait le système Terre","authors":"Alexis Le Pichon, Constantino Listowski, Christine Lac","doi":"10.37053/lameteorologie-2023-0005","DOIUrl":"https://doi.org/10.37053/lameteorologie-2023-0005","url":null,"abstract":"","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131731573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Au collège Rimbaud, Tous ensemble contre le réchauffement climatique !","authors":"Léa Partensky, Nicolas Tornare","doi":"10.4267/2042/70555","DOIUrl":"https://doi.org/10.4267/2042/70555","url":null,"abstract":"","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130917867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
La MétéorologiePub Date : 1900-01-01DOI: 10.37053/lameteorologie-2022-0010
A. Gaudel, Owen R. Cooper, Kai-Lan Chang, Claire Granier, Valérie Thouret, Philippe Nédélec, Romain Blot, Ilann Bourgeois, Jerry R. Ziemke, Sarah A. Strode, Luke D. Oman, Pasquale Sellitto
{"title":"Augmentation d'ozone troposphérique dans l'hémisphère Nord observée grâce aux mesures Iagos","authors":"A. Gaudel, Owen R. Cooper, Kai-Lan Chang, Claire Granier, Valérie Thouret, Philippe Nédélec, Romain Blot, Ilann Bourgeois, Jerry R. Ziemke, Sarah A. Strode, Luke D. Oman, Pasquale Sellitto","doi":"10.37053/lameteorologie-2022-0010","DOIUrl":"https://doi.org/10.37053/lameteorologie-2022-0010","url":null,"abstract":"L'ozone troposphérique est un gaz à effet de serre, nocif pour la santé humaine, les cultures et la productivité des écosystèmes. Il contrôle la capacité oxydante de la troposphère. Du fait de sa grande variabilité spatiale et temporelle et d'observations en nombre limité, il n'avait pas encore été possible de quantifier les tendances de l'ozone troposphérique dans l'hémisphère Nord sur des échelles de temps de deux décennies. Cette étude montre, grâce à l'infrastructure de recherche Iagos installée à bord d'avions commerciaux, que l'ozone troposphérique a augmenté au-dessus de onze régions de l'hémisphère Nord depuis le milieu des années 1990. Ces observations sont cohérentes avec les observations effectuées par l'instrument OMI/MLS embarqué sur satellite. La modification de la répartition spatiale des émissions anthropiques de précurseurs d'ozone, comme les oxydes d'azote (NOx), a conduit à une augmentation de l'ozone et du forçage radiatif associé au-dessus des 11 régions d'étude, malgré les réductions des émissions de NOx aux latitudes moyennes.\u0000 Tropospheric ozone is an important greenhouse gas, is detrimental to human health and crop and ecosystem productivity, and controls the oxidizing capacity of the troposphere. Because of its high spatial and temporal variability and limited observations, quantifying net tropospheric ozone changes across the Northern Hemisphere on time scales of two decades had not been possible. Here, we show, using 2 decades of observations from the IAGOS Research Infrastructure using commercial aircraft, that tropospheric ozone has increased above 11 regions of the Northern Hemisphere since the mid-1990s, consistent with the OMI/MLS satellite product. The net result of shifting anthropogenic ozone precursor emissions has led to an increase of ozone and its radiative forcing above all 11 study regions of the Northern Hemisphere, despite nitrogen oxides emission reductions at midlatitudes.","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130985072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"L'instrument OCO-3 a rejoint la Station spatiale internationale","authors":"François-Marie Bréon","doi":"10.4267/2042/70358","DOIUrl":"https://doi.org/10.4267/2042/70358","url":null,"abstract":"","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133154541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Après une année en orbite, Icesat-2 tient ses promesses","authors":"Simon Gascoin, César Deschamps-Berger","doi":"10.4267/2042/70545","DOIUrl":"https://doi.org/10.4267/2042/70545","url":null,"abstract":"","PeriodicalId":169583,"journal":{"name":"La Météorologie","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133575749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}