Deep exchange with the UTLS: the Tibetan pipe (B03)

• Subject Area: Atmospheric Science
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 428312742

This project aims to improve the understanding of and quantify the role of the highest mountain ranges and plateaus in the transport of water vapour, other trace gases, and aerosols between the atmospheric boundary layer (ABL) and the UTLS. Reaching this goal will improve the understanding of the climate system and enhance the ICON-based climate modeling system that will be used and adapted in this project. Within the first phase of the CRC we will focus on ABL to UTLS ex-change processes over the geographical area of the Tibetan plateau and the Himalayas with its foothills. We plan to inves-tigate two transport mechanisms: (a) dry deep mixing with tropopause folds and very deep ABLs (up to 5 km above the plateau level) in boreal winter and spring, and (b) deep convection over the Tibetan plateau the Himalayas, and Himalayan foothills in the monsoon season.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 301: The tropopause region in a changing atmosphere
• Applicant Institution: Johannes Gutenberg-Universität Mainz
• Project Heads: Professor Dr. Bodo Ahrens; Professor Juerg Schmidli, Ph.D.