Spatial distribution of fine-mode aerosol optical depth over land in spring 2022 based on DPC/GF-5(02)

DONG Jiantao; LI Zhengqiang; XIE Yisong; FAN Cheng; HONG Jin; DAI Liuxin; GU Haoran; ZHENG Yang

doi:10.3969/j.issn.1673-6141.2023.04.006

Journal of Atmospheric and Environmental Optics, Volume. 18, Issue 4, 323(2023)

Spatial distribution of fine-mode aerosol optical depth over land in spring 2022 based on DPC/GF-5(02)

DONG Jiantao^1,2, LI Zhengqiang², XIE Yisong^2、*, FAN Cheng², HONG Jin³, DAI Liuxin², GU Haoran^2,4, and ZHENG Yang²

Author Affiliations

¹School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozhuo454003, China

²State Environmental Protection Key Laboratory of Satellite Remote Sensing, Aerospace Information Research Institute,Chinese Academy of Sciences, Beijing 100101, China

³Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science Chinese Academy of Sciences,Hefei 230031, China

⁴College of Geography and Tourism, Anhui Normal University, Wuhu 241000, China

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Fig. 1. Averaged AOD_f over land in spring 2022. (a) DPC; (b) MOD04

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Fig. 2. Spatial distribution of monthly averaged AOD_f over land in China. (a) March; (b) April; (c) May

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Fig. 3. Spatial distribution of monthly averaged AOD_f over land in Eastern and Northern China. (a) March; (b) April; (c) May

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Fig. 4. Spatial distribution of monthly averaged AOD_f over land in Guangdong-Hong Kong-Macao Area.(a) March; (b) April; (c) May

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Fig. 5. Spatial distribution of monthly averaged AOD_f over land in Chengdu-Chongqing economic circle.(a) March; (b) April; (c) May

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Fig. 6. Weekly-averaged change of AOD_f and PM_2.5 around monitoring sites in Chengdu in spring, 2022

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Fig. 7. Spatial distribution of monthly averaged AOD_f over land in partially South Asia. (a) March; (b) April; (c) May

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Fig. 8. Spatial distribution of monthly averaged AOD_f over land in partially Central-North Africa. (a) March; (b) April; (c) May

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Fig. 9. AOD_f comparison between DPC and AERONET

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Table 1. Inputs of 6SV

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Table 1. Inputs of 6SV

参数名称	参数设置
中心波长/nm	670, 865
细粒子气溶胶模型	典型的细粒子气溶胶模型^[11]、基于SONET统计的典型模型^[29]
AOD_f	0.001, 0.25, 0.5, 0.75, 1.00, 1.25, 1.50, 1.75, 2.00
地表海拔/km	0, 0.25, 0.50, 0.75, 1.00, 2.00, 5
太阳天顶角/(°)	0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 88
观测天顶角/(°)	0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 88
相对方位角/(°)	0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180

Table 2. Variation of AOD_f over land in certain regions in spring, 2022

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Table 2. Variation of AOD_f over land in certain regions in spring, 2022

地区	AOD_f
地区	3月月均	4月月均	5月月均	春季季均
成渝圈	0.371^*	0.276	0.270	0.316
华东-华北	0.244	0.305^*	0.271	0.278
粤港澳	0.283	0.284^*	0.275	0.286
南亚地区	0.335	0.369^*	0.253	0.327^#
非洲中-北部	0.182^*	0.166	0.159	0.168

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Jiantao DONG, Zhengqiang LI, Yisong XIE, Cheng FAN, Jin HONG, Liuxin DAI, Haoran GU, Yang ZHENG. Spatial distribution of fine-mode aerosol optical depth over land in spring 2022 based on DPC/GF-5(02)[J]. Journal of Atmospheric and Environmental Optics, 2023, 18(4): 323

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