On-Orbit Evaluation of Spectral Performance and High-Precision Retrieval of Atmospheric Carbon Dioxide Based on TanSat (Invited)

Xinhua Hong; Chengxin Zhang; Xuesuo Zhang; Wenqing Liu

doi:10.3788/AOS241153

Acta Optica Sinica, Volume. 44, Issue 18, 1800010(2024)

On-Orbit Evaluation of Spectral Performance and High-Precision Retrieval of Atmospheric Carbon Dioxide Based on TanSat (Invited)

Xinhua Hong^1,2, Chengxin Zhang^2,3, Xuesuo Zhang⁴, and Wenqing Liu^2,5、*

Author Affiliations

¹College of Life and Environment Sciences, Huangshan University, Huangshan 245041, Anhui , China

²Institute of Environmental, Hefei Comprehensive National Science Center, Hefei 230031, Anhui , China

³Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026, Anhui , China

⁴Anhui Wanfeng Changneng Investment Co., Ltd., Hefei 231131, Anhui , China

⁵Anhui Institute of Optics and Fine Mechanics, Anhui Institute of Physical Science, Chinese Academy of Sciences, Hefei 230031, Anhui , China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(13)

Fig. 1. Schematic diagrams of three observation modes of TanSat. (a) GL mode; (b) ND mode; (c) TG mode

Download full size

Fig. 2. Examples of TanSat-ACGS L1B spectra in the O2A, WCO2, and SCO2 bands. (a) O2A; (b) WCO2; (c) SCO2

Download full size

Fig. 3. True-color map of on-orbit radiation secondary calibration experiment area of TanSat

Download full size

Fig. 4. Process of X_CO2 inversion based on TanSat recalibrated spectra

Download full size

Fig. 5. Variation of wavelength shift with time for TanSat’s FPs. (a) O2A; (b) WCO2; (c) SCO2

Download full size

Fig. 6. On-orbit secondary radiometric calibration results at TanSat O2A band. (a) FP1; (b) FP2; (c) FP3; (d) FP4; (e) FP5; (f) FP6; (g) FP7; (h) FP8; (i) FP9

Download full size

Fig. 7. On-orbit secondary radiometric calibration results at TanSat WCO2 band. (a) FP1; (b) FP2; (c) FP3; (d) FP4; (e) FP5; (f) FP6; (g) FP7; (h) FP8; (i) FP9

Download full size

Fig. 8. Test results of improvement in retrieval effect after on-orbit secondary radiometric calibration (this is a retrieval evaluation of #01610 orbit). (a) Number of valid data points for inversion and RMS of fitting residuals before and after on-orbit calibration; (b) the uncertainty retrieved before and after on-orbit calibration

Download full size

Fig. 9. Comparison of X_CO2 retrieved by TanSat with the results from TCCON

Download full size

Fig. 10. Intercomparisons of TanSat, GOSAT, and OCO-2 observation results. (a)-(c) Correlation analyses of CO₂ VCD observation results between two satellites; (d)-(f) correlation analyses of X_CO2 observation results between two satellites

Download full size

Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra
View table
Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra
Band Target gas (ID) Synchronously retrieved gas Wavelength range /nm Spectral resolution /nm
O2A O₂ (7) H₂O (1) 1594-1624 0.01
WCO2 CO₂ (2) H₂O (1), CH₄ (6) 740-780 0.01

Table 2. Information of the utilized TanSat data

View table

Table 2. Information of the utilized TanSat data

TanSat product

Source

Last access date

Time span

Use

ACGS L1B science product

http:∥satellite.nsmc.org.cn/PortalSite/Data/

Mar. 15, 2024

Mar. 2017—

Sep. 2018

Radiance recalibration on orbit and retrieval

ACGS L1B calibration product

Same as above

Mar. 10, 2024

Same as above

Wavelength recalibration on orbit

CAPI cloud mask product

Ref. [14]

Jan. 18, 2022

Same as above

Result filtering

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites

View table

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites

Site	ID	Position	Data source	R	SD /10^-6	Bias /10^-6	MAE /10^-6	N'
Ny-Ålesund, Norway	ny	78.92°N, 11.92°E	Ref. [61]	0.94	1.49	0.65	1.21	30
Jet Propulsion Laboratory, USA	JPL	34.20°N, 118.18°W	Refs. [62-63]	0.89	1.20	-1.74	1.83	74
Tsukuba, Japan	tk	36.05°N, 140.12°E	Ref. [64]	0.89	1.22	-0.26	0.93	55
Sodankylä, Finland	so	67.37°N, 26.63°E	Ref. [65]	0.97	0.90	0.27	0.74	98
Saga, Japan	sa	33.24°N, 130.29°E	Ref. [66]	0.84	1.36	-0.17	0.98	74
Rikubetsu, Japan	rj	43.46°N, 143.77°E	Ref. [67]	0.96	1.08	0.70	1.05	34
Réunion Island, France	ra	20.90°S, 55.49°E	Ref. [68]	0.83	0.60	0.56	0.63	46
Park Falls, WI, USA	pr	45.95°N, 90.27°W	Ref. [69]	0.96	0.99	0.16	0.74	151
Paris, France	pa	48.85°N, 2.36°E	Ref. [70]	0.94	0.80	0.76	0.93	38
Orléans, France	or	47.97°N, 2.11°E	Ref. [71]	0.92	0.93	0.59	0.88	92
Lauder, New Zealand	LNZ	45.04°S, 169.68°E	Refs. [72-73]	0.88	0.60	0.31	0.53	98
Lamont, OK, USA	oc	36.60°N, 97.49°W	Ref. [74]	0.89	1.27	0.07	0.88	155
Karlsruhe, Germany	ka	49.10°N, 8.44°E	Ref. [75]	0.91	1.10	-0.06	0.87	78
Izana, Tenerife, Spain	iz	28.30°N, 16.50°W	Ref. [76]	0.96	0.62	0.37	0.56	32
East Trout Lake, Canada	et	54.35°N, 104.99°W	Ref. [77]	0.97	0.96	0.37	0.84	162
Caltech, USA	ci	34.14°N, 118.13°W	Ref. [78]	0.88	0.78	-1.65	1.65	72
Burgos, Philippines	bu	18.53°N, 120.65°E	Ref. [79]	0.91	0.84	0.31	0.67	60
Bremen, Germany	br	53.10°N, 8.85°E	Ref. [80]	0.82	1.81	0.62	1.21	15
Hefei, China	hf	31.91°N, 117.17°E	Ref. [81]	0.79	1.63	0.74	1.38	18
Xianghe, China	xh	34.8445°N, 116.4°E	Ref. [82]	0.79	1.63	0.15	3.02	13

Tools

Get Citation

Copy Citation Text

Xinhua Hong, Chengxin Zhang, Xuesuo Zhang, Wenqing Liu. On-Orbit Evaluation of Spectral Performance and High-Precision Retrieval of Atmospheric Carbon Dioxide Based on TanSat (Invited)[J]. Acta Optica Sinica, 2024, 44(18): 1800010

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: Reviews

Received: Jun. 7, 2024

Accepted: Jul. 16, 2024

Published Online: Aug. 26, 2024

The Author Email: Wenqing Liu (wqliu@aiofm.ac.cn)

DOI:10.3788/AOS241153

CSTR:32393.14.AOS241153

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra

Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra

Table 2. Information of the utilized TanSat data

Table 2. Information of the utilized TanSat data

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites

Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra

Table 1. Parameter settings for HITRAN to calculate priori optical density reference spectra

Table 2. Information of the utilized TanSat data

Table 2. Information of the utilized TanSat data

Table 3. Comparison of XCO2 retrieved by TanSat with the results from global TCCON sites

Table 3. Comparison of XCO2 retrieved by TanSat with the results from global TCCON sites

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites

Table 3. Comparison of X_CO2 retrieved by TanSat with the results from global TCCON sites