Asian summer monsoon Chemical and Climate Impact Project (ACCLIP)

该项目将为亚洲夏季风化学和气候影响项目(ACCLIP)实地活动选址一个合适的业务基地提供差旅资金。这次实地考察活动建议使用NSF/NCAR研究飞机湾流V号和NASA WB-57来描述亚洲夏季风(ASM)对全球化学和气候的影响。ACCLIP计划于2020年7月至8月期间举行，飞机将驻扎在日本。ACCLIP的目标是测量在西太平洋基地ASM反气旋中处理的空气中独特的化学成分、水蒸气和气溶胶含量，以评估其对大气化学和辐射的全球影响。ASM反气旋已被证明在对流层上部-平流层下部(平流层下部)-亚洲对流层顶气溶胶层(TALL)含有一个增强的气溶胶层。在NH夏季，通过深层季风对流，ALTAL与UTLS动力系统的耦合有可能产生重大的化学和气候影响。该奖项反映了NSF的法定使命，通过使用基金会的智力优势和更广泛的影响审查标准进行评估，认为值得支持。

This project will provide travel funds for locating a suitable base of operation for the Asian summer monsoon Chemical and Climate Impact Project (ACCLIP) field campaign. This field campaign suggests to use the NSF/NCAR research aircraft Gulfstream V and the NASA WB-57 to characterize the Asian Summer Monsoon's (ASM) impact on global chemistry and climate. ACCLIP is planned to take place during July-August of 2020 with aircraft based in Japan. The goal of ACCLIP is to measure the unique chemical composition, water vapor, and aerosol content in air processed in the ASM anticyclone from a base in the western Pacific in order to evaluate its global impact on atmospheric chemistry and radiation. The ASM anticyclone has been shown to contain an enhanced aerosol layer at the upper troposphere - lower stratosphere (UTLS) level - the Asian Tropopause Aerosol Layer (ATAL). The coupling of the ATAL to the UTLS dynamical system through deep monsoon convection in the NH summer season has the potential to generate significant chemical and climate impacts. Potentially large black carbon (BC) enhancements in the ATAL also may affect dynamic processes in the region by generating in situ heating, potentially reducing precipitation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.