Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD027795 |
An Improved High-Spatial-Resolution Aerosol Retrieval Algorithm for MODIS Images Over Land | |
Wei, Jing1,2; Sun, Lin3; Peng, Yiran2; Wang, Lunche4; Zhang, Zhaoyang5; Bilal, Muhammad6; Ma, Yanci3 | |
2018-11-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:21页码:12291-12307 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | MODerate resolution Imaging Spectroradiometer (MODIS) data can play an important role in aerosol retrieval at the global scale due to their short revisit period and long-term observations. The operational MODIS aerosol optical depth (AOD) products are severely limited in air quality studies at the city or local scales due to their coarse spatial resolutions. Therefore, an improved aerosol retrieval algorithm for MODIS images at 1-km spatial resolution is proposed in this paper. This algorithm is based on the high-resolution aerosol retrieval algorithm with a priori land surface reflectance database support (HARLS), which was developed over bright urban areas and was subsequently modified and validated over land. For this study, an eight-day surface reflectance database and a seasonal aerosol-type database over land are constructed using the MODIS surface reflectance and aerosol products. Four typical regions (in Europe, North America, Beijing-Tianjin-Hebei, and the Sahara) with different underlying surfaces and aerosol types are selected to perform the aerosol retrieval experiments. The AOD retrievals are validated against the AERosol RObotic NETwork (AERONET) version 2 level 2.0 AOD measurements and compared with the operational MODIS AOD product at 3-km resolution (MOD04_3K). The results show that AOD retrievals adequately match with AERONET AOD measurements, with 79.56%, 72.69%, 74.71%, and 61.01% of the collections falling within the MOD04_3K expected error over land [+/-(0.05 + 20%)] for each of the above-listed regions, respectively. The Improved HARLS (I-HARLS) algorithm performs well overall under different surface conditions, but the data quality gradually decreases with the increase in surface reflectance. Moreover, the I-HARLS algorithm is robust with less bias and can provide more detailed aerosol spatial distributions than those provided by the MOD04_3K AOD product. These results suggest that the I-HARLS algorithm can be used for air-pollution-and climate-related studies at medium or small scales. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452001400030 |
WOS关键词 | RADIATIVE-TRANSFER CODE ; ATMOSPHERIC CORRECTION ; OPTICAL DEPTH ; VECTOR VERSION ; SATELLITE DATA ; PART I ; VALIDATION ; REFLECTANCE ; 6S ; THICKNESS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33129 |
专题 | 气候变化 |
作者单位 | 1.Beijing Normal Univ, Coll Global Change & Earth Syst Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China; 2.Tsinghua Univ, Key Lab Earth Syst Modeling, Dept Earth Syst Sci, Minist Educ, Beijing, Peoples R China; 3.Shandong Univ Sci & Technol, Coll Geomat, Qingdao, Peoples R China; 4.China Univ Geosci, Sch Geog & Informat Engn, Wuhan, Hubei, Peoples R China; 5.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Peoples R China; 6.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Jing,Sun, Lin,Peng, Yiran,et al. An Improved High-Spatial-Resolution Aerosol Retrieval Algorithm for MODIS Images Over Land[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(21):12291-12307. |
APA | Wei, Jing.,Sun, Lin.,Peng, Yiran.,Wang, Lunche.,Zhang, Zhaoyang.,...&Ma, Yanci.(2018).An Improved High-Spatial-Resolution Aerosol Retrieval Algorithm for MODIS Images Over Land.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(21),12291-12307. |
MLA | Wei, Jing,et al."An Improved High-Spatial-Resolution Aerosol Retrieval Algorithm for MODIS Images Over Land".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.21(2018):12291-12307. |
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