Hong-mei REN, Ang LI, Zhao-kun HU, Pin-hua XIE, Jin XU, Ye-yuan HUANG, Xiao-mei LI, Hong-yan ZHONG, Hai-rong ZHANG, Xin TIAN, Bo REN, Jiang-yi ZHENG, Shuai WANG, Wen-xuan CHAI. Measurement of Water Vapor Absorption in the Ultraviolet Band Using MAX-DOAS and Evaluation of Its Influence on DOAS Retrieval[J]. Spectroscopy and Spectral Analysis, 2022, 42(10): 3314
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 10, 3314 (2022)
Fig. 1. MAX-DOAS regional station location in Qianxian, Xi'an and the instrument observation principle
(a): Observation location; (b): Observation principle
(a): Observation location; (b): Observation principle
Fig. 2. Ultraviolet and visible blue H2O and O4 absorption cross section
Fig. 3. Water vapor optimal retrieval band test
(a): Ultraviolet; (b): Visible
(a): Ultraviolet; (b): Visible
Fig. 4. Examples of DOAS fitting retrieval in ultraviolet (a) and visible bands (b)
Fig. 5. The DSCD in the ultraviolet and visible bands (α =5°)
(a): O4 DSCD; (b): H2O DSCD; (c): H2O DSCD/O4 DSCD
(a): O4 DSCD; (b): H2O DSCD; (c): H2O DSCD/O4 DSCD
Fig. 6. Correlation analysis of O4 and H2O DSCD in in the ultraviolet and visible bands
(a): H2O DSCD; (b): O4 DSCD; (c): H2O DSCD/O4 DSCD
(a): H2O DSCD; (b): O4 DSCD; (c): H2O DSCD/O4 DSCD
Fig. 7. The absorption cross section of H2O and other trace gases (O4, HONO and HCHO) in the ultraviolet band
Fig. 8. Example of DOAS fitting retrieval for O4, HONO and HCHO
(a): The water vapor absorption reference cross section was not included in the fitting process;(b): The water vapor absorption reference cross section was included in the fitting process
(a): The water vapor absorption reference cross section was not included in the fitting process;(b): The water vapor absorption reference cross section was included in the fitting process
| ||||||||||||||||||||||||||
Table 1. Parameter settings of MAX-DOAS regional station in Qianxian, Xi'an
|
Table 2. Parameter settings of water vapor DOAS fitting
|
Table 3. The DOAS fitting parameter for O4, HONO and HCHO
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20