| EMI 南极臭氧柱总量反演研究 |
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| 引用本文： | 钱园园,司福祺,罗宇涵,周海金,杨东上,杨太平,王煜.EMI 南极臭氧柱总量反演研究[J].大气与环境光学学报,2021,16(3):215-222. |
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| 作者姓名： | 钱园园 司福祺 罗宇涵 周海金 杨东上 杨太平 王煜 |
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| 作者单位： | 1 中国科学院合肥物质科学研究院安徽光学精密机械研究所, 中国科学院环境光学与技术重点实验室,
安徽 合肥 230031;2.中国科学技术大学, 安徽 合肥 230036;3.安徽大学物质科学与信息技术研究院, 安徽 合肥 230601 |
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| 基金项目： | Supported by National Natural Science Foundation of China (国家自然科学基金, 41676184, 41941011) |
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| 摘 要： | 利用差分吸收光谱技术 (DOAS) 反演了我国首个星载大气痕量气体差分吸收光谱仪 (EMI) 的臭氧斜柱浓度
(SCD), 通过 SCIATRAN 辐射传输模型建立了大气质量因子 (AMF) 的查找表, 最终得到 EMI 的臭氧垂直柱浓度 (即
臭氧柱总量)。将 EMI、 OMI 和 TROPOMI 于 2018 年 11 月 2 日获得的南极区域臭氧柱总量进行了对比分析, 三者
均观测到南极中高纬度 (30◦ S∼70◦ S) 的臭氧高值区域与南极内陆 (75◦ S∼90◦ S) 的臭氧低值区域, 且 EMI 与 OMI、
TROPOMI 的臭氧柱总量相关性 (R2) 分别为 0.977 和 0.979。进一步将 EMI 反演的臭氧柱总量与南极长城站 (62.22 S,
58.96 W) 地基天顶散射光差分吸收光谱仪 (ZSL-DOAS) 反演的臭氧柱总量进行对比, 二者相关性 (R2) 为 0.926。
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| 关 键 词： | 大气痕量气体差分吸收光谱仪 差分吸收光谱技术 南极 臭氧柱总量 查找表 |
| 收稿时间： | 2020-10-28 |
| 修稿时间： | 2020-12-30 |
Retrieval of Antarctic Total Ozone Column From EMI |
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| QIAN Yuanyuan,SI Fuqi,LUO Yuhan,ZHOU Haijin,YANG Dongshang,YANG Taiping,WANG Yu.Retrieval of Antarctic Total Ozone Column From EMI[J].Journal of Atmospheric and Environmental Optics,2021,16(3):215-222. |
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| Authors: | QIAN Yuanyuan SI Fuqi LUO Yuhan ZHOU Haijin YANG Dongshang YANG Taiping WANG Yu |
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| Institution: | 1.Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, HFIPS,
Chinese Academy of Sciences, Hefei 230031, China;2.University of Science and Technology of China, Hefei 230026, China;3.Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China |
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| Abstract: | The slant column density (SCD) of ozone detected by Chinese first space-borne environmental trace gases
monitoring instrument (EMI) was retrieved by using differential optical absorption spectroscopy (DOAS) method.
Then the lookup table of atmospheric quality factor (AMF) was built based on SCIATRAN radiative transfer model,
and the vertical column density of ozone (VCD, namely total ozone column) was finally obtained. A comparative
analysis of the total ozone column from EMI, OMI and TROPOMI in the Antarctica on November 2, 2018 shows
that EMI, OMI and TROPOMI all observed the high ozone values area in mid and high latitude of Antarctica (30◦
S∼70◦ S) and the low ozone values area in inland Antarctica (75◦ S∼90◦ S), and the correlation coefficients (R2)
between EMI and OMI, TROPOMI are 0.977 and 0.958 respectively. Furthermore, the total ozone columns of EMI
was compared with that of ground-based ZSL-DOAS at Great Wall station (62.22 S, 58.96 W) from October 25 to
November 25, 2018, and the correlation coefficient (R2) is 0.926 |
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| Keywords: | environmental trace gases monitoring instrument differential optical absorption spectroscopy Antarctica total ozone columns lookup table |
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