Improvements to the WRF-Chem model for quasi-hemispheric simulations of aerosols and ozone in the Arctic

• Main Authors: Marelle, Louis, Raut, Jean-Christophe, Law, Kathy S., Berg, Larry K., Fast, Jerome D., Easter, Richard C., Shrivastava, Manishkumar, Thomas, Jennie L.
• Other Authors: Center for International Climate and Environmental Research Oslo (CICERO), University of Oslo (UiO), TROPO - 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), Pacific Northwest National Laboratory (PNNL)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2017
• Subjects: [PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; Arctic; AMAP; The Cryosphere
• Online Access: https://insu.hal.science/insu-01567300; https://insu.hal.science/insu-01567300/document; https://insu.hal.science/insu-01567300/file/poster_CATCH_marelle.pdf

International audience We improve WRF-­‐Chem’s performance compared to recent inter comparisons (AMAP, 2015) in order to study aerosols and ozone in the Arctic (long-­ range transport, local sources). We identify missing processes in WRF-­‐Chem 3.5.1, update the model, and evaluate the corrected model in the Arctic.