Journal of Atmospheric and Environmental Optics, Volume. 19, Issue 4, 418(2024)
Preliminary analysis on horizontal extinction coefficient in the main land areas of China based on optical engineering application
Figures & Tables(12)
Fig. 1. The distribution of horizontal extinction coefficient over China
Fig. 2. The distribution of horizontal extinction coefficient in cold half year (a) and warm half year (b) over China
Fig. 3. The distribution of ratio on horizontal extinction coefficient in warm and cold half year over China (a) andprobability distribution of horizontal extinction coefficient in warm to cold half year (b)
Fig. 4. Day distribution of horizontal extinction coefficient over China
Fig. 5. Night distribution of horizontal extinction coefficient over China
Fig. 6. Probability distribution of horizontal extinction coefficient of maximum (a) and minimum (b) in daytime
Fig. 7. Probability distribution of horizontal extinction coefficient of maximum (a) and minimum (b) in nighttime
Table 1. The brief of national meteorological data on horizontal extinction coefficient
View tableView in ArticleTable 1. The brief of national meteorological data on horizontal extinction coefficient
Observation area Number of stations Record number Observation area Number of stations Record number 50 105 3426369 55 24 1231390 51 101 4056610 56 287 8421388 52 85 3462211 57 513 13009415 53 306 7726468 58 391 9909603 54 388 10593737 59 214 6473433
Table 2. The brief of ideal sites of key region
View tableView in ArticleTable 2. The brief of ideal sites of key region
Province (Autonomous region) Number of stations Number of ideal
locations
Province (Autonomous region) Number of stations Number of ideal
locations
内蒙古 119 70 西藏 39 36 甘肃 85 27 四川 163 42 新疆 103 34 云南 126 31 青海 51 43
Table 3. The brief of monthly distribution on horizontal extinction coefficient of maximum and minimum in cold half year and warm half year
View tableView in ArticleTable 3. The brief of monthly distribution on horizontal extinction coefficient of maximum and minimum in cold half year and warm half year
Percentage of
max and min
values
Cold half year Warm half year 1 2 3 4 11 12 5 6 7 8 9 10 Max/% 6.1 3.0 8.7 60.3 17.0 4.9 30.4 12.0 38.1 7.4 4.3 7.8 Min/% 38.3 7.6 16.5 7.1 6.7 26.8 11.2 6.7 17.4 5.0 11.6 48.1
Table 4. Correspondence table for regional level of horizontal extinction coefficient distribution
View tableView in ArticleTable 4. Correspondence table for regional level of horizontal extinction coefficient distribution
Level Condition Evaluation 1
2
3
4
σ < 0.15
0.15 ≤ σ < 0.3
0.3 ≤ σ < 0.75
σ ≥ 0.75
Excellent
Good
Avgrage
Poor
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Weiyu LYU, Depeng CHEN, Hao HU, Yukun ZHANG, Zexu QING, Yan LI, Lihui LIU, Fei YAO, Peilei CHEN, Xin GUO. Preliminary analysis on horizontal extinction coefficient in the main land areas of China based on optical engineering application[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(4): 418
Paper Information
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Received: Oct. 26, 2021
Accepted: --
Published Online: Jan. 8, 2025
The Author Email: Hao HU (Huhao27@163.com)
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