Assessment of OMI near-UV aerosol optical depth over Central and East Asia
文献类型：期刊论文
| 作者 | Zhang, Wenhao1; Gu, Xingfa1; Xu, Hui1; Yu, Tao1; Zheng, Fengjie1 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2016 |
| 卷号 | 121期号:1页码:382-398 |
| 关键词 | SPLIT-WINDOW ALGORITHM THERMAL INFRARED-SENSOR RADIATION BUDGET NETWORK REMOTE-SENSING DATA ATMOSPHERIC CORRECTION EMISSIVITY RETRIEVAL SATELLITE DATA UNITED-STATES AVHRR DATA GENERATION |
| 通讯作者 | Xu, H (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China. |
| 英文摘要 | Several essential improvements have been made in recent Ozone Monitoring Instrument (OMI) near-ultraviolet (UV) aerosol retrieval algorithm version (OMAERUV version 1.4.2), but few regional validations for its aerosol optical depth (AOD) product are conducted. This paper assessed the OMAERUV AOD product over Central and East Asia. The OMAERUV Level 2.0 AOD product was compared with Aerosol Robotic Network (AERONET) Level 2.0 direct Sun AOD measurement over 10years (2005-2014) at 27 selected AERONET sites. A combined comparison of OMAERUV-AERONET AOD at 25 (2) sites was carried out and yielded correlation coefficient () of 0.63 (0.77), slope of 0.53 (0.57), y intercept of 0.18 (0.13), and 50.71% (57.24%) OMAERUV AOD fall within the expected uncertainty boundary (larger by 0.1 or 30%) at 380nm (440nm). The more accurate (>0.70) OMAERUV retrievals are reported over eastern and northern China and South Korea. The two primary reasons for the underestimation of OMAERUV AOD over China are as follows: (1) the use of single-channel (388nm) retrieval method retrieves scattering AOD and not total AOD, and (2) the spectral dependence of the imaginary part of the refractive index in the near-UV region assumed in the algorithm may not be representative of aerosols found over China. The comparisons for three predominant aerosol types indicate that smoke aerosol exhibits the best performance, followed by dust and nonabsorbing aerosol. It is consistent with the characteristic of near-UV wavelength that it is more sensitive to absorbent particles. The comprehensive yearly (2005-2014) comparison at 25 sites and comparison between two periods (2005-2006 and 2009-2014) at selected four sites show no discernible decrease of temporal trend, which indicates that the OMAERUV algorithm successfully maintains its quality of aerosol product despite post-2008 row anomaly instrument problem. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| 类目[WOS] | Meteorology & Atmospheric Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000369845300023 |
| 源URL | [http://ir.radi.ac.cn/handle/183411/39196]  |
| 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.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Wenhao,Gu, Xingfa,Xu, Hui,et al. Assessment of OMI near-UV aerosol optical depth over Central and East Asia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2016,121(1):382-398. |
| APA | Zhang, Wenhao,Gu, Xingfa,Xu, Hui,Yu, Tao,&Zheng, Fengjie.(2016).Assessment of OMI near-UV aerosol optical depth over Central and East Asia.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(1),382-398. |
| MLA | Zhang, Wenhao,et al."Assessment of OMI near-UV aerosol optical depth over Central and East Asia".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 121.1(2016):382-398. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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