Determining the Total Ozone Column from Spectral Measurements of IKFS-2 in 2015-2022

被引：0

作者：

Polyakov, A. V. ^{[1
]}

Kriukovskikh, E. P. ^{[1
]}

Virolainen, Ya. A. ^{[1
]}

Nerobelov, G. M. ^{[1
,2
,3
]}

Kozlov, D. A. ^{[4
]}

Timofeyev, Yu. M. ^{[1
]}

机构：

[1] St Petersburg Univ, St Petersburg 199034, Russia

[2] Russian Acad Sci, Sci Res Ctr Ecol Safety, St Petersburg 187110, Russia

[3] Russian State Hydrometeorol Univ, St Petersburg 195196, Russia

[4] Keldysh Res Ctr, Moscow 125438, Russia

来源：

IZVESTIYA ATMOSPHERIC AND OCEANIC PHYSICS | 2024年 / 60卷 / 06期

关键词：

remote sensing of the atmosphere; atmospheric ozone; IKFS-2; ozone total column; ATMOSPHERIC COMPOSITION; SATELLITE; VALIDATION;

D O I：

10.1134/S0001433824700713

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The results of determining the ozone total column (OTC) from the spectra of the outgoing thermal infrared radiation measured by the IKFS-2 instrument from the Meteor-M No. 2 spacecraft during 8 years of measurements are presented. The previously developed technique for the interpretation of spectral measurements made in 2015-2020 with a swath width (SW) of 1000 km is applied to the measurements in 2021-2022 with a SW of 1500 km. It is shown that the increase in the differences between the IKFS-2 data and the results of independent measurements is caused not by the expansion of the OTC variability statistics, but by the increase in the range of scanning angle variation. After a finalization of the technique for the measurements with a 1500-km SW, a comparison with independent data showed that the standard deviations of differences with the results of ground and satellite measurements for all 8 years do not exceed 3% and did not increase compared to the first 6 years of measurements. To analyze the results in the polar regions, the OTC values obtained from the IKFS-2 spectra are compared with the ozonesonde data, which are performed continuously throughout the year, including the polar night. A good qualitative agreement of the IKFS-2 data and ozone sounding data, including winter-spring periods of extreme OTC decrease at high latitudes of both hemispheres, is shown. The standard deviations of the differences between the IKFS-2 data and the OTC values from ozone sounding data were from 5.3 to 11% (17-33 DU) for different stations, or on average for all stations 7.9%, which is consistent with the uncertainty of the estimates of the integrated ozone content in the vertical column from ozonesonde data.

引用

页码：689 / 698

页数：10

共 27 条

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