Transport by Asian Summer Monsoon Convection to the Upper Troposphere and Lower Stratosphere During ACCLIP (2022)
Anno: 2025
Autori: Smith W.P., Pan L.L., Ueyama R., Honomichl S., Campos T., Viciani S., D’Amato F., Bianchini G., Barucci M., Hornbrook R.S., Apel E.C., Hills AJ., Barletta B., Atlas E., Schauffler S., Treadaway V., Smith K., Lueb R., Hendershot R., Donnelly S., Rollins A., Waxman E., Novak G., Huey LG., Tanner D., Lee Y.R., Bekemeier C., Bowman K.P.
Affiliazione autori: NSF Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, Boulder, CO 80305 USA; NASA, Ames Res Ctr, Moffett Field, CA USA; CNR, Natl Inst Opt CNR INO, Sesto Fiorentino, Italy; Univ Calif Irvine, Irvine, CA USA; Univ Miami, Rosenstiel Sch Marine Atmospher & Earth Sci, Dept Atmospher Sci, Miami, FL USA; NOAA, Chem Sci Lab, Boulder, CO USA; Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO USA; Ft Hays State Univ, Hays, KS USA; Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA USA; Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA.
Abstract: The Asian Summer Monsoon (ASM) has garnered attention in recent years for its impacts on the composition of the upper troposphere and lower stratosphere (UTLS) via deep convection. A recent observational effort into this mechanism, the Asian Summer Monsoon Chemical and CLimate Impact Project (ACCLIP), sampled the composition of the ASM UTLS over the northwestern Pacific region during boreal summer 2022 using two airborne platforms. In this work, we integrate Lagrangian trajectory modeling with convective cloud top observations to diagnose ASM convective transport which contributed to ACCLIP airborne observations. This diagnostic is applied to explore the properties of convective transport associated with prominent ASM sub-systems, revealing that for species ranging in lifetime from days to months, transport from convection along the East Asia Subtropical Front was generally associated with more UTLS pollutants than transport from convection over South Asia. The convective transport diagnostic is used to isolate three convective transport events over eastern Asia which had distinct chemical tracer relationship behaviors, indicating the different economical behaviors of the contributing source regions. One of these transport events is explored in greater detail, where a polluted air mass was sampled from convection over the Northeast China Plain which may have been high enough in altitude to impact the composition of the stratosphere. Overall, the presented diagnosis of convective transport contribution to ACCLIP airborne sampling indicates a key scientific success of the campaign and enables process studies of the climate interactions from the two ASM sub-systems.
Giornale/Rivista: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
Volume: 130 (7) Da Pagina: e2024JD042732-1 A: e2024JD042732-1
Maggiori informazioni: This material is based upon work supported by the NSF National Center for Atmospheric Research, which is a major facility sponsored by the U.S. National Science Foundation under Cooperative Agreement No. 1852977. The data were collected using NSF’s Lower Atmosphere Observing Facilities, which are managed and operated by NSF NCAR’s Earth Observing Laboratory. W.P.S. was supported under grant NSF AGS-1853929 and NASA Grant 80NSSC24K0706. The AWAS team was supported by NASA Grant 80NSSC22K1284 and NSF-AGS Grant 1853948. The COLD2 deployment was funded by the European Space Agency (ESA) contract QA4EO-ACCLIP. R.U. was supported by NASA Upper Atmosphere Composition Observations Program. The authors thank Simone Tilmes, William Randel, and Colin Gurganus for helpful discussions. They further acknowledge the ACCLIP science team, the WB-57 and GV pilots, technicians and ground crews, and support from Osan Air Base, for their efforts to carry out the ACCLIP field phase during the COVID-19 pandemic.Parole chiavi: convective transport; Asian monsoon; trajectory modelingDOI: 10.1029/2024JD042732Citazioni: 1dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
