Anisotropy of stratospheric irregularities inferred from stellar scintillation measurements by GOMOS/ENVISAT

Abstact. In this paper, we discuss the methods for evaluation of the anisotropy of small-scale atmospheric irregularities using satellite stellar occultation measurements. These methods are based on coherency analysis of bi-chromatic scintillation observed in occultations of double stars and in tang...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2019-02, Vol.231 (1), p.12026
Main Authors: Kan, V, Sofieva, V F
Format: Article
Language:English
Subjects:
Anisotropy
Double stars
Gravity waves
Irregularities
Photometers
Pollution monitoring
Scintillation
Stellar occultation
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Abstact. In this paper, we discuss the methods for evaluation of the anisotropy of small-scale atmospheric irregularities using satellite stellar occultation measurements. These methods are based on coherency analysis of bi-chromatic scintillation observed in occultations of double stars and in tangential (horizontal) occultations. These methods are applied to scintillation measurements by two fast photometers of the GOMOS (Global Ozone Monitoring by Occultation of Stars) instrument on board ENVISAT. The estimates of the anisotropy of air density irregularities generated by saturated gravity waves are obtained for altitudes 30-45 km. The anisotropy coefficient varies from 50 down to 10 with decreasing vertical scales from 60 m to 10 m.
ISSN:1755-1307
1755-1315
1755-1315
DOI:10.1088/1755-1315/231/1/012026