Retrieval of aerosol fine-mode fraction from intensity and polarization measurements by PARASOL over East Asia

	Retrieval of aerosol fine-mode fraction from intensity and polarization measurements by PARASOL over East Asia
	Zhang, Yang 1; Li, Zhengqiang 1; Qie, Lili 1; Zhang, Ying 1; Liu, Zhihong 1; Chen, Xingfeng 1; Hou, Weizhen 1; Li, Kaitao 1; Li, Donghui 1; Xu, Hua 1
刊名	Remote Sensing
	2016
卷号	8 期号:5
关键词	TIME-SERIES VEGETATION COVER TREE MORTALITY CLIMATE-CHANGE CANOPY COVER MODIS DATA CLASSIFICATION DISTURBANCE PATTERNS BIOMASS
通讯作者	Li, Zhengqiang (lizq@radi.ac.cn)
英文摘要	The fine-mode fraction (FMF) of aerosol optical depth (AOD) is a key optical parameter that represents the proportion of fine particles relative to total aerosols in the atmosphere. However, in comparison to ground-based measurements, the FMF is still difficult to retrieve from satellite observations, as attempted by a Moderate-resolution Imaging Spectroradiometer (MODIS) algorithm. In this paper, we introduce the retrieval of FMF based on Polarization and Anisotropy of Reflectances for Atmospheric Science coupled with Observations from a Lidar (PARASOL) data. This method takes advantage of the coincident multi-angle intensity and polarization measurements from a single satellite platform. In our method, we use intensity measurements to retrieve the total AOD and polarization measurements to retrieve the fine-mode AOD. The FMF is then calculated as the ratio of the retrieved fine-mode AOD to the total AOD. The important processes in our method include the estimation of the surface intensity and polarized reflectance by using two semi-empirical models, and the building of two sets of aerosol retrieval lookup tables for the intensity and polarized measurements via the 6SV radiative transfer code. We apply this method to East Asia, and comparisons of the retrieved FMFs for the Beijing, Xianghe and Seoul_SNU sites with those of the Aerosol Robotic Network (AERONET) ground-based observations produce correlation coefficients (R2) of 0.838, 0.818, and 0.877, respectively. However, the comparison results are relatively poor (R2= 0.537) in low-AOD areas, such as the Osaka site, due to the low signal-to-noise ratio of the satellite observations. © 2016 by the authors.
学科主题	Remote Sensing
类目[WOS]	Remote Sensing
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:20162302468647
内容类型	期刊论文
源URL	[http://ir.radi.ac.cn/handle/183411/39238]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1. Environment Protection Key Laboratory of Satellite Remote Sensing, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 2.100101, China 3. University of Chinese Academy of Sciences, Beijing 4.100049, China 5. College of Resources and Environment, Chengdu University of Information Technology, Chengdu 6.610225, China
推荐引用方式 GB/T 7714	Zhang, Yang,Li, Zhengqiang,Qie, Lili,et al. Retrieval of aerosol fine-mode fraction from intensity and polarization measurements by PARASOL over East Asia[J]. Remote Sensing,2016,8(5).
APA	Zhang, Yang.,Li, Zhengqiang.,Qie, Lili.,Zhang, Ying.,Liu, Zhihong.,...&Xu, Hua.(2016).Retrieval of aerosol fine-mode fraction from intensity and polarization measurements by PARASOL over East Asia.Remote Sensing,8(5).
MLA	Zhang, Yang,et al."Retrieval of aerosol fine-mode fraction from intensity and polarization measurements by PARASOL over East Asia".Remote Sensing 8.5(2016).