Large-scale distribution of greenhouse gases, aerosols and pollutants over Siberia: the summer 2017 YAK-AEROSIB aircraft campaign

• Main Authors: Belan, Boris D., Ancellet, Gérard, Law, Kathy S., Pelon, Jacques, Paris, Jean-Daniel, Nedelec, Philippe, Balin, Yury, Kokhanenko, Grigory, Penner, Ioganes, Nasonov, Sergey, Chernov, Dmitry, Arshinov, Mikhail, Belan, Sergey, Davydov, Denis, Ivlev, Georgy, Kozlov, Artem, Kozlov, Valerii, Simonenkov, Denis, Tolmachev, Gennadii, Fofonov, Alexandr
• Other Authors: V.E. Zuev Institute of Atmospheric Optics (IAO), Siberian Branch of the Russian Academy of Sciences (SB RAS), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire d'aérologie (LAERO), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2018
• Subjects: [SDE]Environmental Sciences; Arctic; black carbon; Climate change; norilsk; Tundra; Siberia
• Online Access: https://insu.hal.science/insu-04435234

International audience High-latitude terrestrial ecosystems of the Northern Hemisphere (NH) and Siberia, in particular, are highly sensitive to climate change. Siberia covers a vast area of the land surface of the NH. Its ecosystems are represented by steppes, forests of different types, wetlands, tundra and arctic deserts, so investigation of the atmospheric composition in this region is of great importance for understanding land-atmosphere exchange processes and possible feedbacks in the whole NH. In spite of recognizing the problem, comprehensive observational data are still lacking in this region. One of the main goals of the joint French-Russian YAK-AEROSIB program is to fill up this gap in data for better understanding what is happening with air composition over Siberia. The 10th YAK-AEROSIB aircraft campaign undertaken in June, 2017, was aimed to survey local and regional air pollution in West Siberia caused by emissions from oil and gas fields, as well as other anthropogenic sources. For this purpose, Optik Tu-134 research aircraft was equipped with in-situ and remote sensing (aerosol lidars) means to derive a spatial distribution of CO2, CH4, CO, O3, black carbon and aerosols. The aircraft mission was conducted between roughly 55˚ N and 70˚ N along the following route: Novosibirsk-Surgut-Norilsk-Igarka-Bor-Novosibirsk (16th-17th June, 2017) and Novosibirsk-Surgut-Novosibirsk (18th June, 2017). Flights were performed with changing altitude from 400 to 4000 m with 30-60-minute horizontal path segments at these heights. Here, we present a measurement data set of the above atmospheric constituents sampled during the summer 2017 YAK-AEROSIB mission. Distinct pollution plumes have been recorded when the aircraft was flying over the areas of oil and gas production fields, as well as in the vicinity of the Norilsk industrial centre. Preliminary analysis shows that associated gas flaring may have a significant impact on the air composition and pollution in Siberia taking into account that oil and gas fields ...