TY - JOUR
T1 - Impact of regional climate patterns on the biomass burning emissions and transport over Peninsular Southeast Asia, 2000-2019
AU - Huang, Hsiang Yu
AU - Wang, Sheng Hsiang
AU - Lau, William K.M.
AU - Wang, Shih Yu Simon
AU - da Silva, Arlindo M.
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2024/1
Y1 - 2024/1
N2 - The regional climate variability in peninsular Southeast Asia (PSEA) can influence springtime biomass burning (BB) aerosol emissions and associated transport patterns. To comprehend the interannual variation of regional climate and its impact on PSEA BB, a diagnostic analysis based on the Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) dataset and Moderate Resolution Imaging Spectroradiometer (MODIS) observations from 2000 to 2019 has presented. Employing principal component, composite, and correlation analyses, this study identified four climatic factors governing the emission and transport of PSEA BB aerosols: (i) a low-level anticyclone (suppressed monsoon trough) in the Bay of Bengal, (ii) the relative strength of the anticyclone over the South China Sea, (iii) the Pacific subtropical high, and (iv) low-level westerlies from PSEA to Taiwan. Additionally, BB emissions and transport significantly correlate with the El Niño-Southern Oscillation (ENSO). In the El Niño year, increased anticyclones in the Bay of Bengal and South China Sea accompanied the stronger westerlies, which enhanced BB aerosol emission and transport. The diagnostic results of this study can contribute to a better understanding and improved model simulations of aerosol-climate interactions in South and Southeast Asian monsoon regions.
AB - The regional climate variability in peninsular Southeast Asia (PSEA) can influence springtime biomass burning (BB) aerosol emissions and associated transport patterns. To comprehend the interannual variation of regional climate and its impact on PSEA BB, a diagnostic analysis based on the Modern-Era Retrospective Analysis for Research and Applications version 2 (MERRA-2) dataset and Moderate Resolution Imaging Spectroradiometer (MODIS) observations from 2000 to 2019 has presented. Employing principal component, composite, and correlation analyses, this study identified four climatic factors governing the emission and transport of PSEA BB aerosols: (i) a low-level anticyclone (suppressed monsoon trough) in the Bay of Bengal, (ii) the relative strength of the anticyclone over the South China Sea, (iii) the Pacific subtropical high, and (iv) low-level westerlies from PSEA to Taiwan. Additionally, BB emissions and transport significantly correlate with the El Niño-Southern Oscillation (ENSO). In the El Niño year, increased anticyclones in the Bay of Bengal and South China Sea accompanied the stronger westerlies, which enhanced BB aerosol emission and transport. The diagnostic results of this study can contribute to a better understanding and improved model simulations of aerosol-climate interactions in South and Southeast Asian monsoon regions.
KW - Bay of Bengal anticyclone
KW - Biomass burning
KW - Climatic impact
KW - El Niño
KW - Pacific subtropical high
KW - South China Sea anticyclone
UR - http://www.scopus.com/inward/record.url?scp=85175711117&partnerID=8YFLogxK
U2 - 10.1016/j.atmosres.2023.107067
DO - 10.1016/j.atmosres.2023.107067
M3 - 期刊論文
AN - SCOPUS:85175711117
SN - 0169-8095
VL - 297
JO - Atmospheric Research
JF - Atmospheric Research
M1 - 107067
ER -
