干旱区生态环境知识资源中心(Arid): Improved Dust Detection over East Asia Using Geostationary Satellite Data

Arid

DOI	10.1007/s13143-021-00230-9
	Improved Dust Detection over East Asia Using Geostationary Satellite Data
	Shin, Yu-Rim; Sohn, Eun-Ha; Park, Ki-Hong; Ryu, Geun-Hyeok; Lee, Soobong; Lee, Seon-Young; Park, Na-Yeon
通讯作者	Park, NY (corresponding author), Korea Meteorol Adm, Natl Meteorol Satellite Ctr, Satellite Anal Div, 64-18 Guam Gil, Gwanghyewon Myeon 27803, Chungcheongbuk, South Korea.
来源期刊	ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES
ISSN	1976-7633
EISSN	1976-7951
出版年	2021
英文摘要	This paper presents an improved algorithm, based on the D-parameter, for dust detection over the East Asian region using brightness temperature differences (BTDs) between the infrared channels of the Advanced Himawari Imager (AHI) onboard Himawari-8. The developed algorithm defines a dust index in the form of the ratio of BTDs: BTD between the 10.4 mu m and 12.4 mu m channels (BTD10.4-12.4) to that between the 8.6 mu m and 10.4 mu m channels (BTD8.6-10.4). To identify dust with this index, threshold values were determined empirically. A masking technique using the BTD8.6-10.4 was utilized in the dust index to mitigate the problem of detecting clear-sky deserts and fog over the ocean as dust. BTD8.6-10.4 was analyzed for dust, clear-sky desert, and fog over the ocean cases during 2017 and 2018 with this method. Fog over the ocean and clear-sky desert were distinguished by the criteria of BTD8.6-10.4 > -1.1 K and BTD8.6-10.4 > -1 K, respectively. Based on these thresholds, the influence of fog over the ocean and clear-sky desert was filtered out. The results showed that the dust area was qualitatively consistent with RGB images and ground observation data. Comparison with the AERONET aerosol optical depth (AOD) demonstrated that the D-parameter was exponentially proportional to AOD, and the correlation coefficient between them was approximately 0.6. The improved Asian Dust detection algorithm can be applied to the monitoring of dust dispersion and movement and also serve as a quantitative indicator of Asian Dust.
英文关键词	Asian dust Dust detection algorithm Himawari-8 Infrared channel BTD
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000622237700001
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352071
作者单位	[Shin, Yu-Rim; Park, Ki-Hong; Ryu, Geun-Hyeok; Lee, Soobong; Lee, Seon-Young; Park, Na-Yeon] Korea Meteorol Adm, Natl Meteorol Satellite Ctr, Satellite Anal Div, 64-18 Guam Gil, Gwanghyewon Myeon 27803, Chungcheongbuk, South Korea; [Sohn, Eun-Ha] Korea Meteorol Adm, Numer Modeling Ctr, Numer Data Applicat Div, 61 16 Gil, Seoul 07062, South Korea
推荐引用方式 GB/T 7714	Shin, Yu-Rim,Sohn, Eun-Ha,Park, Ki-Hong,et al. Improved Dust Detection over East Asia Using Geostationary Satellite Data[J],2021.
APA	Shin, Yu-Rim.,Sohn, Eun-Ha.,Park, Ki-Hong.,Ryu, Geun-Hyeok.,Lee, Soobong.,...&Park, Na-Yeon.(2021).Improved Dust Detection over East Asia Using Geostationary Satellite Data.ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES.
MLA	Shin, Yu-Rim,et al."Improved Dust Detection over East Asia Using Geostationary Satellite Data".ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES (2021).