The Dominant Role of Brewer‐Dobson Circulation on 17 O‐Excess Variations in Snow Pits at Dome A, Antarctica

• Published in: Journal of Geophysical Research: Atmospheres
• Main Authors: Pang, Hongxi, Zhang, Peng, Wu, Shuangye, Jouzel, Jean, Steen‐larsen, Hans, Christian, Liu, Ke, Zhang, Wangbin, Yu, Jinhai, An, Chunlei, Chen, Deliang, Hou, Shugui
• Other Authors: Nanjing University (NJU), Göteborgs Universitet = University of Gothenburg (GU), University of Dayton, 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), Glaces et Continents, Climats et Isotopes Stables (GLACCIOS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-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)), University of Bergen (UiB), Polar Research Institute of China (PRIC), We thank all of the CHINARE-26 and CHINARE-32 scientists, technicians, and porters for their hard work in the field. We thank Amaelle Landais (LSCE) for the 17O-excess measurements and her constructive comments on this paper. We also thank Tongmei Wang for her advice on calculating the residual circulation. This work was jointly supported by the National Natural Science Foundation of China (41622605, 41830644, 91837102, 42021001), the Chinese Arctic and Antarctic Administration (CXPT2020012), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), and the Swedish STINT (CH2019-8377).
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2022
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Antarc*; Antarctica
• Online Access: https://hal.science/hal-03738524; https://hal.science/hal-03738524/document; https://hal.science/hal-03738524/file/JGR%20Atmospheres%20-%202022%20-%20Pang%20-%20The%20Dominant%20Role%20of%20Brewer%25E2%2580%2590Dobson%20Circulation%20on%2017O%25E2%2580%2590Excess%20Variations%20in%20Snow%20Pits%20at.pdf; https://doi.org/10.1029/2022jd036559

International audience Previous studies have shown that the mass-independent fractionation of oxygen isotope (O-MIF) in the atmosphere can occur during photochemical reactions of ozone (