TY - JOUR
T1 - Aerosol-boundary-layer-monsoon interactions amplify semi-direct effect of biomass smoke on low cloud formation in Southeast Asia
AU - Ding, Ke
AU - Huang, Xin
AU - Ding, Aijun
AU - Wang, Minghuai
AU - Su, Hang
AU - Kerminen, Veli Matti
AU - Petäjä, Tuukka
AU - Tan, Zhemin
AU - Wang, Zilin
AU - Zhou, Derong
AU - Sun, Jianning
AU - Liao, Hong
AU - Wang, Huijun
AU - Carslaw, Ken
AU - Wood, Robert
AU - Zuidema, Paquita
AU - Rosenfeld, Daniel
AU - Kulmala, Markku
AU - Fu, Congbin
AU - Pöschl, Ulrich
AU - Cheng, Yafang
AU - Andreae, Meinrat O.
N1 - Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - Low clouds play a key role in the Earth-atmosphere energy balance and influence agricultural production and solar-power generation. Smoke aloft has been found to enhance marine stratocumulus through aerosol-cloud interactions, but its role in regions with strong human activities and complex monsoon circulation remains unclear. Here we show that biomass burning aerosols aloft strongly increase the low cloud coverage over both land and ocean in subtropical southeastern Asia. The degree of this enhancement and its spatial extent are comparable to that in the Southeast Atlantic, even though the total biomass burning emissions in Southeast Asia are only one-fifth of those in Southern Africa. We find that a synergetic effect of aerosol-cloud-boundary layer interaction with the monsoon is the main reason for the strong semi-direct effect and enhanced low cloud formation in southeastern Asia.
AB - Low clouds play a key role in the Earth-atmosphere energy balance and influence agricultural production and solar-power generation. Smoke aloft has been found to enhance marine stratocumulus through aerosol-cloud interactions, but its role in regions with strong human activities and complex monsoon circulation remains unclear. Here we show that biomass burning aerosols aloft strongly increase the low cloud coverage over both land and ocean in subtropical southeastern Asia. The degree of this enhancement and its spatial extent are comparable to that in the Southeast Atlantic, even though the total biomass burning emissions in Southeast Asia are only one-fifth of those in Southern Africa. We find that a synergetic effect of aerosol-cloud-boundary layer interaction with the monsoon is the main reason for the strong semi-direct effect and enhanced low cloud formation in southeastern Asia.
UR - http://www.scopus.com/inward/record.url?scp=85118650931&partnerID=8YFLogxK
U2 - 10.1038/s41467-021-26728-4
DO - 10.1038/s41467-021-26728-4
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C2 - 34741045
AN - SCOPUS:85118650931
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 6416
ER -