Study on Ozone Retrieval Algorithm for Monitoring Near Space Ultraviolet Radiation

Yuan AN; Xianhua WANG; Hanhan YE; Hailiang SHI; Shichao WU; Chao LI; Erchang SUN

doi:10.3788/gzxb20255401.0130001

Acta Photonica Sinica, Volume. 54, Issue 1, 0130001(2025)

Study on Ozone Retrieval Algorithm for Monitoring Near Space Ultraviolet Radiation

Yuan AN1...2, Xianhua WANG1,*, Hanhan YE1, Hailiang SHI1, Shichao WU1, Chao LI1,2, and Erchang SUN12 |Show fewer author(s)

Author Affiliations

¹Anhui Institute of Optics and Fine Mechanics，Hefei Institutes of Physical Science，Chinese Academy of Sciences，Hefei 230031，China

²University of Science and Technology of China，Hefei 230026，China

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Figures & Tables(36)

Fig. 1. Changes in ozone profiles in typical high，middle and low latitude zones on March 16

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Fig. 2. Changes in ozone profiles in typical high，middle and low latitude regions on July 16

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Fig. 3. Changes in ozone profiles in typical high，middle and low latitude regions on October 16

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Fig. 4. Changes in ozone profiles in typical high，middle and low latitude regions on January 16

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Fig. 5. Changes of ozone profiles at different times in the three northeastern provinces，five southwestern provinces and three central provinces

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Fig. 6. Schematic diagram of inversion idea

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Fig. 7. The spring relative difference between the inversion results and the TROPOMI Level 2 products with ground-based measurement data

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Fig. 8. The summer relative difference between the inversion results and the TROPOMI Level 2 products with ground-based measurement data

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Fig. 9. The autumn relative difference between the inversion results and the TROPOMI Level 2 products with ground-based measurement data

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Fig. 10. The winter relative difference between the inversion results and the TROPOMI Level 2 products with ground-based measurement data

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Fig. 11. The spring relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Xizang region

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Fig. 12. The summer relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Xizang region

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Fig. 13. The autumn relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Xizang region

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Fig. 14. The winter relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Xizang region

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Fig. 15. The spring relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Southeast region

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Fig. 16. The summer relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Southeast region

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Fig. 17. The autumn relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Southeast region

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Fig. 18. The winter relative difference between the inversion results and the TROPOMI Level 2 products with OMPS_LP Level 2 products in the Southeast region

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Table 1. The details of Hong Kong King′s Park ozonesonde station

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Table 1. The details of Hong Kong King′s Park ozonesonde station

Parameters styles	Parameters
Latitude and Longitude	（22.31°N，114.17°E）
Date established	1951.01.01
Ozonesonde operations began	1993.10
Altitude	65 m
Station type	Land（fixed）
Station class	Radiation station
Time zone	UTC+8
Climate zone	Warm temperate-dry winter-hot summer

Table 2. The structure of the ozone climatology constructed by LAMSAL L N et al.

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Table 2. The structure of the ozone climatology constructed by LAMSAL L N et al.

Name	Database parameters	Range
Temporal Resolution	Winter/spring	December，January，February/March，April，May
Temporal Resolution	Summer/autumn	June，July，August/September，October，November
Spatial Resolution	Northern hemisphere polar latitude	60° N~90° N
	Northern hemisphere midlatitude	30° N~60° N
	Tropical latitude	30° N~30° S
	Southern hemisphere midlatitude	30° S~60° S
	Southern hemisphere polar latitude	60° S~90° S
Type of ozone （Class interval of 30 DU）	Northern hemisphere polar latitude	Summer/autumn （220~430 DU）	Winter/spring（220~550 DU）
	Northern hemisphere midlatitude	Summer/autumn （220~430 DU）	Winter/spring（220~550 DU）
	Tropical latitude	All year（190~340 DU）
	Southern hemisphere midlatitude	Summer/autumn （220~370 DU）	Winter/spring（130~430 DU）
	Southern hemisphere polar latitude	Summer/autumn （190~370 DU）	Winter/spring（130~370 DU）

Table 3. Longitude and latitude of typical zones at high，middle and low latitudes in China

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Table 3. Longitude and latitude of typical zones at high，middle and low latitudes in China

Zones type	Latitude	Longitude
Zones in the high latitude	40.0	115.0
	42.0	87.5
	42.0	112.5
	46.0	130.0
Zones in the middle latitude	30.0	102.5
	32.0	120.0
	34.0	115.0
	36.0	117.5
	38.0	107.5
Zones in the low latitude	16.0	117.5
	22.0	115.0
	24.0	112.5
	26.0	107.5

Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm³）

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Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm³）

	January 19		March 16		August 18		October 19
	TpO3 inversion results	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion
Difference of peak concentration	5.10×10¹¹	3.20×10¹¹	6.50×10¹¹	4.00×10¹¹	-2.40×10¹¹	-2.50×10¹¹	2.50×10¹¹	1.40×10¹¹
Difference of mean concentration	1.97×10¹¹	1.26×10¹¹	2.87×10¹¹	1.75×10¹¹	1.21×10¹¹	6.42×10¹⁰	1.65×10¹¹	8.99×10¹⁰
Difference of standard deviation	1.51×10¹¹	8.67×10¹⁰	2.41×10¹¹	1.52×10¹¹	-3.25×10¹⁰	-1.19×10⁹	2.37×10¹⁰	2.50×10⁸
R²	0.948	0.980	0.951	0.972	0.978	0.989	0.977	0.989

Table 5. Specific time of ground-based ozonesonde data at Hong Kong station

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Table 5. Specific time of ground-based ozonesonde data at Hong Kong station

Season	Month	Day
Spring	March	01/08/15/22/29
	April	06/12/9
	May	03/10/18/25/31
Summer	June	12/21
	July	05/21/26
	August	02/09/16/23/30
Autumn	September	05/13/20/27
	October	13/20/25
	November	02/08/16/2/29
Winter	December	06/13/20/29
	January	04/11/18/26
	February	01/08/15/22

Table 6. The spring relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

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Table 6. The spring relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

/	Median value of $R_{i}$ from ground-based observations/%		Standard deviation of $R_{i}$ from ground-based observations/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMIProduct/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
March	2.53	2.33	16.83	10.82	4.35	6.71	-54.25
April	10.04	5.32	15.36	10.08	1.37	2.33	-70.07
May	3.19	2.04	16.04	10.61	2.04	3.20	-56.86

Table 7. The summer relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

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Table 7. The summer relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

/	Median value of $R_{i}$ from ground-based observations/%		Standard Deviation of $R_{i}$ from ground-based observations/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6）W·nm^-1·m^-2	Rate of change/%
June	6.03	3.33	15.27	11.90	2.91	4.10	-40.89
July	-1.32	-0.93	11.10	7.61	2.92	3.09	-5.82
August	4.40	3.68	12.50	8.51	1.55	1.65	-6.45

Table 8. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

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Table 8. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

/	Median value of $R_{i}$ from ground-based observations/%		Standard Deviation of $R_{i}$ from ground-based observations/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6）W·nm^-1·m^-2	Rate of change/%
September	0.48	0.85	15.94	9.41	2.87	2.92	-1.74
October	14.63	7.45	14.46	10.16	3.10	4.31	-39.03
November	1.63	0.56	14.99	10.06	2.01	2.46	-22.39

Table 9. The winter relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

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Table 9. The winter relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

/	Median value of $R_{i}$ from ground-based observations/%		Standard Deviation of $R_{i}$ from ground-based observations/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/ （×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6）W·nm^-1·m^-2	Rate of change/%
December	4.64	3.47	17.79	11.82	2.80	3.36	-20.00
January	10.72	6.44	18.46	12.10	1.92	2.88	-50.00
February	13.25	10.44	16.74	11.06	1.38	2.17	-57.25

Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm³）

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Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm³）

	January 5		March 4		August 19		October 5
	results TpO3 inversion	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion	results TpO3 inversion	results GEOS-Chem inversion
Difference of peak concentration	-1.05×10¹²	-7.97×10¹¹	-1.02×10¹²	-8.78×10¹¹	-7.92×10¹¹	-4.81×10¹¹	-7.29×10¹¹	-5.23×10¹¹
Difference of mean concentration	-1.37×10¹¹	-7.32×10¹⁰	-1.10×10¹¹	-3.95×10¹⁰	-2.43×10¹¹	-1.46×10¹¹	5.33×10⁹	2.46×10¹⁰
Difference of standard deviation	-2.26×10¹¹	-1.58×10¹¹	-1.59×10¹¹	-1.10×10¹¹	-2.77×10¹¹	-1.76×10¹¹	-1.06×10¹¹	-5.87×10¹⁰
R²	0.973	0.986	0.980	0.984	0.980	0.994	0.964	0.985

Table 11. The spring relative difference statistics between inversion results and TROPOMI level 2 products

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Table 11. The spring relative difference statistics between inversion results and TROPOMI level 2 products

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6）W·nm^-1·m^-2	Rate of change/%
March 21	-0.38	-0.39	13.56	9.37	3.90	3.55	9.86
April 29	-0.72	-0.13	14.69	8.30	3.90	2.64	47.73
May 15	3.01	1.83	13.42	8.04	1.57	1.54	1.95

Table 12. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

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Table 12. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6）W·nm^-1·m^-2	Rate of change/%
June 16	0.69	0.63	10.85	6.90	1.79	1.57	14.01
July 18	-3.57	-2.11	12.36	8.32	2.10	1.44	45.83
August 30	-0.03	0.63	12.29	6.65	1.69	1.23	37.40

Table 13. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

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Table 13. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6）W·nm^-1·m^-2	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
September 20	-1.54	-1.74	15.62	8.06	5.50	3.66	50.27
October 6	2.88	0.98	16.42	8.51	1.62	1.30	24.62
November 7	4.12	1.92	17.25	8.94	1.52	1.22	24.59

Table 14. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

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Table 14. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
December 25	9.65	6.06	22.88	14.31	4.07	3.76	8.24
January 7	7.61	5.07	19.24	12.82	3.01	2.91	3.44
February 8	-2.46	-1.51	16.77	10.74	1.94	1.36	42.65

Table 15. The spring relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

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Table 15. The spring relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
March 20	0.00	0.29	9.09	5.63	1.95	1.97	-1.03
April 21	-4.56	-2.44	11.61	6.76	2.75	2.06	33.50
May 7	-7.51	-4.01	12.34	6.42	1.95	1.55	25.81

Table 16. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

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Table 16. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
June 24	6.48	4.32	11.58	8.09	1.34	1.90	-41.79
July 10	3.67	2.48	12.54	6.76	2.66	2.86	-7.52
August 27	1.79	1.43	9.53	6.20	2.91	3.12	-7.22

Table 17. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

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Table 17. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
September 28	-0.22	-0.39	10.92	6.68	3.93	3.48	12.93
October 14	-1.84	-1.27	8.76	5.45	3.00	2.96	1.35
November 15	1.26	0.77	12.18	7.04	1.81	1.49	21.48

Table 18. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

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Table 18. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

/	Mean value of $R_{i}$ from OMPS_LP Level 2 products/%		Standard Deviation of $R_{i}$ from OMPS_LP Level 2 products/%		UV radiation caused by different ozone products
/	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product	GEOS-Chem Inversion results	TROPOMI Product/（×10^-6 W·nm^-1·m^-2）	GEOS-Chem Inversion results/（×10^-6 W·nm^-1·m^-2）	Rate of change/%
December 1	-10.66	-7.93	11.46	8.20	3.87	3.29	17.69
January 15	-4.52	-3.08	10.77	6.85	1.05	1.00	5.00
February 16	-4.27	-2.50	11.69	6.82	7.31	5.51	32.67

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Yuan AN, Xianhua WANG, Hanhan YE, Hailiang SHI, Shichao WU, Chao LI, Erchang SUN. Study on Ozone Retrieval Algorithm for Monitoring Near Space Ultraviolet Radiation[J]. Acta Photonica Sinica, 2025, 54(1): 0130001

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Paper Information

Category:

Received: Jul. 12, 2024

Accepted: Sep. 29, 2024

Published Online: Mar. 5, 2025

The Author Email: WANG Xianhua (xhwang@aiofm.ac.cn)

DOI:10.3788/gzxb20255401.0130001

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. The details of Hong Kong King′s Park ozonesonde station

Table 1. The details of Hong Kong King′s Park ozonesonde station

Table 2. The structure of the ozone climatology constructed by LAMSAL L N et al.

Table 2. The structure of the ozone climatology constructed by LAMSAL L N et al.

Table 3. Longitude and latitude of typical zones at high，middle and low latitudes in China

Table 3. Longitude and latitude of typical zones at high，middle and low latitudes in China

Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm3）

Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm3）

Table 5. Specific time of ground-based ozonesonde data at Hong Kong station

Table 5. Specific time of ground-based ozonesonde data at Hong Kong station

Table 6. The spring relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 6. The spring relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 7. The summer relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 7. The summer relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 8. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 8. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 9. The winter relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 9. The winter relative difference statistics between inversion results and TROPOMI level 2 products and ground-based measured data and ultraviolet radiation changes

Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm3）

Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm3）

Table 11. The spring relative difference statistics between inversion results and TROPOMI level 2 products

Table 11. The spring relative difference statistics between inversion results and TROPOMI level 2 products

Table 12. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 12. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 13. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 13. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 14. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 14. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Xizang region

Table 15. The spring relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 15. The spring relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 16. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 16. The summer relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 17. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 17. The autumn relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 18. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

Table 18. The winter relative difference statistics between inversion results and TROPOMI level 2 products and OMPS_LP Level 2 products，as well as ultraviolet radiation changes in the Southeast region

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Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm³）

Table 4. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the ground-based measurements（molecules/cm³）

Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm³）

Table 10. Comparison of TpO3 inversion results and GEOS-Chem inversion results with the OMPS_LP products（molecules/cm³）