Diurnal and seasonal variations of aerosol scattering characteristics over typical farmland area of Huaihe River Basin

Ling Xinfeng; HOU Can; Yang Yuanjian; HUANG Yong; NI Ting

doi:10.3969/j.issn.1673-6141.2024.02.003

Journal of Atmospheric and Environmental Optics, Volume. 19, Issue 2, 162(2024)

Diurnal and seasonal variations of aerosol scattering characteristics over typical farmland area of Huaihe River Basin

Ling Xinfeng¹, HOU Can^1,2,3, Yang Yuanjian^4、*, HUANG Yong^1,2,3, and NI Ting¹

Author Affiliations

¹Shouxian National Climate Observatory, Huainan 232000, China

²Anhui Institute of Meteorological Sciences, Hefei 230031, China

³Anhui Key Laboratory of Atmospheric Science and Satellite Remote Sensing, Hefei 230031, China

⁴School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China

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Figures & Tables(11)

Fig. 1. Monthly variation trend of aerosol scattering coefficient

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Fig. 2. Diurnal variation of aerosol scattering coefficient

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Fig. 3. Diurnal variation of aerosol scattering coefficient in different seasons. (a) Spring, (b) summer, (c) autumn, (d) winter

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Fig. 4. Correlation between scattering coefficient and particle concentration. (a) PM₁; (b) PM_2.5; (c) PM₁₀; (d) E_SA and β

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Fig. 5. Relationship between MSE and RH

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Fig. 6. Scattering coefficient distribution at different wind directions

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Fig. 7. scattering coefficient distribution at different levels of wind speed

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Fig. 8. Distribution diagram of aerosol scattering coefficient under different wind speed and direction

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Fig. 9. Scatter plot of scattering coefficient and visibility

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Table 1. Differences of aerosol scattering coefficients and particle concentration between cleaning days and pollution days in different seasons

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Table 1. Differences of aerosol scattering coefficients and particle concentration between cleaning days and pollution days in different seasons

Period	Category	$C_{P M_{1}}$ /(μg·m^-3)	$C_{P M_{2.5}}$ /(μg·m^-3)	$C_{P M_{10}}$ /(μg·m^-3)	Scattering coefficient			E_SA
Period	Category	$C_{P M_{1}}$ /(μg·m^-3)	$C_{P M_{2.5}}$ /(μg·m^-3)	$C_{P M_{10}}$ /(μg·m^-3)	450 nm	525 nm	635 nm	E_SA
Total	Clean	65.7	24.1	35.9	185.6	148.0	113.6	1.65
Total	Pollution	65.7	82.1	137.4	539.0	446.4	358.0	1.51
Spring	Clean	20.0	22.6	35.1	232.4	186.6	145.5	1.62
Spring	Pollution	42.1	53.9	151.0	442.2	355.4	278.0	1.57
Summer	Clean	21.8	25.5	36.0	161.6	128.5	96.7	1.68
Summer	Pollution	―	―	―	―	―	―	―
Autumn	Clean	18.7	23.1	36.2	157.9	125.2	97.3	1.63
Autumn	Pollution	51.8	79.1	165.7	368.9	307.2	250.8	1.47
Winter	Clean	23.9	26.5	41.0	232.9	179.6	134.9	1.73
Winter	Pollution	78.1	88.0	117.3	662.2	548.8	438.4	1.52

Table 2. Differences of aerosol scattering coefficient and particulate matter between cleaning days and pollution days in different seasons

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Table 2. Differences of aerosol scattering coefficient and particulate matter between cleaning days and pollution days in different seasons

Period	Category	σ_sp/(m·m^-1)	RH/%	WS/(m·s^-1)	VIS/m
Total	Clean	148.0	78.6	2.3	16488
Total	Pollution	446.4	75	2.3	6677
Spring	Clean	186.6	73.2	2.7	14306
Spring	Pollution	355.4	67	1.8	12697
Summer	Clean	128.5	81.8	2.1	17491
Summer	Pollution	―	―	―	―
Autumn	Clean	125.2	81.4	2.1	17693
Autumn	Pollution	307.2	71	2.1	8426
Winter	Clean	179.6	67.5	2.5	17252
Winter	Pollution	548.8	78	2.4	4693

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Xinfeng Ling, Can HOU, Yuanjian Yang, Yong HUANG, Ting NI. Diurnal and seasonal variations of aerosol scattering characteristics over typical farmland area of Huaihe River Basin[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(2): 162

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Paper Information

Category:

Received: May. 20, 2022

Accepted: --

Published Online: Jun. 24, 2024

The Author Email: Yang Yuanjian (yyj1985@nuist.edu.cn)

DOI:10.3969/j.issn.1673-6141.2024.02.003

Topics

laser devices and laser physics

Lasers and Laser Optics

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laser manufacturing

Instrumentation, Measurement and Metrology