Retrievals of fine mode light-absorbing carbonaceous aerosols from POLDER/PARASOL observations over East and South Asia
Retrievals of fine mode light-absorbing carbonaceous aerosols from POLDER/PARASOL observations over East and South Asia
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从东亚和南亚 POLDER/PARASOL 观测中反演精细模式光吸收碳质气溶胶
DOI：
10.1016/j.rse.2020.111913
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发表时间：
2020-09
影响因子：
13.5
通讯作者：
Xiaoye Zhang
中科院分区：
文献类型：
--
作者：
Lei Li;Huizheng Che;Yevgeny Derimian;Oleg Dubovik;Gregory L. Schuster;Cheng Chen;Qiuyue Li;Yaqiang Wang;Bin Guo;Xiaoye Zhang
Li等人（2019）开发了一种新的气溶胶成分方法，可根据卫星观测结果推断气溶胶物种分数，并将其纳入气溶胶和表面特性广义检索（GRASP）算法中。在目前的工作中，我们采用这种气溶胶成分的方法推导和分析的时间和空间特征的黑色和棕色的碳（BC和BrC）浓度在东亚和南亚使用POLDER/PARASOL卫星观测在2005-2013年。卫星反演的BC值与我国现场实测BC值的对比表明，月平均值和日平均值都相当吻合。光吸收碳（BC和BrC）的分布显示出显著的时间变化周期，其增加与已知的强生物质燃烧或化石燃料燃烧排放的月份相匹配。BC主要集中在火灾或人为排放区域附近，而BrC主要集中在远离排放源的地方。还提供了东亚和南亚BC/（BC + BrC）比值的季节平均值。印度东北部和中国北方在12月、1月和2月的高比率（高于0.5）可归因于化石燃料燃烧和人为排放。在3月、4月和5月期间，中南半岛半岛和中国东北地区的中等比例（约0.2-0.3）与生物质燃烧有关（例如，森林火灾、农业废弃物焚烧）。所提供的基于观测的BC、BrC和BC/（BC + BrC）的反演被认为对于约束气溶胶建模和减少模型估计的不确定性具有高度重要性。
A new aerosol component approach that infers aerosol species fractions from satellite observations was developed and incorporated by Li et al. (2019) into Generalized Retrieval of Aerosol and Surface Properties (GRASP) algorithm. In the current work we employ this aerosol component approach for derivation and analysis of temporal and spatial characteristics of black and brown carbon (BC and BrC) concentrations in East and South Asia using POLDER/PARASOL satellite observations during 2005–2013. The inter-comparison of the satellite retrieved and in situ measured BC in China shows a reasonably good agreement for both monthly averaged and daily values. The distribution of light-absorbing carbon (BC and BrC) shows a significant temporal variation cycle with increases matching the months known for strong biomass burning or fossil fuels combustion emissions. The main concentrations of BC are found near the fire or anthropogenic emission regions, while concentrations of BrC are predominantly distanced from the emission sources. Seasonal means of BC/(BC + BrC) ratio in East and South Asia are also presented. High ratios (above 0.5) in Northeast India and North China during December, January, and February can be attributed to fossil fuels combustion and anthropogenic emissions. Medium ratios (around 0.2–0.3) over the Indo-China Peninsula and Northeast China during March, April, and May are associated with the biomass burning (e.g., forest fires, agriculture waste burning). The provided observationally-based retrievals of BC, BrC, and BC/(BC + BrC) are believed to be of high importance for constraining the aerosol modeling and reducing the uncertainties of the model estimations.
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影响因子：
5.2
作者：
T. Novakov;V. Ramanathan;J. Hansen;T. Kirchstetter;M. Sato;J. Sinton;J. Sathaye
通讯作者：
T. Novakov;V. Ramanathan;J. Hansen;T. Kirchstetter;M. Sato;J. Sinton;J. Sathaye
影响因子：
6.3
作者：
Lei Li;O. Dubovik;Y. Derimian;G. Schuster;Tatyana Lapyonok;P. Litvinov;F. Ducos;D. Fuertes;Cheng Chen;Zhengqiang Li;A. Lopatin;B. Torres;H. Che
通讯作者：
Lei Li;O. Dubovik;Y. Derimian;G. Schuster;Tatyana Lapyonok;P. Litvinov;F. Ducos;D. Fuertes;Cheng Chen;Zhengqiang Li;A. Lopatin;B. Torres;H. Che
影响因子：
6.3
作者：
P. Wang;Hong Wang;Y. Wang;Xiaoling Zhang;S. Gong;M. Xue;Chenglong Zhou;H. L. Liu;X. An;T. Niu;Y. Cheng
通讯作者：
P. Wang;Hong Wang;Y. Wang;Xiaoling Zhang;S. Gong;M. Xue;Chenglong Zhou;H. L. Liu;X. An;T. Niu;Y. Cheng
DOI：
10.1029/2018jd030009
发表时间：
2019-07
期刊：
Journal of Geophysical Research: Atmospheres
影响因子：
--
作者：
W. R. Espinosa;J. V. Martins;L. Remer;O. Dubovik;Tatyana Lapyonok;D. Fuertes;Anin Puthukkudy;D. Orozco;L. Ziemba;K. Thornhill;R. Levy
通讯作者：
W. R. Espinosa;J. V. Martins;L. Remer;O. Dubovik;Tatyana Lapyonok;D. Fuertes;Anin Puthukkudy;D. Orozco;L. Ziemba;K. Thornhill;R. Levy