Assessing the role of planetary and gravity waves in the vertical structure of ozone over midlatitudinal Europe

0506076 - ÚFA 2020 RIV DE eng J - Journal Article
Križan, Peter
Assessing the role of planetary and gravity waves in the vertical structure of ozone over midlatitudinal Europe.
Annales Geophysicae. Roč. 37, č. 4 (2019), s. 525-533. ISSN 0992-7689. E-ISSN 1432-0576
R&D Projects: GA ČR(CZ) GA18-01625S
Institutional support: RVO:68378289
Keywords : polar vortex * laminated structure * seasonal evolution * lowe stratosphere * profiles * trends * air
OECD category: Meteorology and atmospheric sciences
Impact factor: 1.490, year: 2019
Method of publishing: Open access
https://www.ann-geophys-discuss.net/angeo-2018-123/

Planetary and gravity waves play an important role in the dynamics of the atmosphere.They are present in the atmospheric distribution of temperature, wind, and ozone content. These waves are detectable also in the vertical profile of ozone and they cause its undulation. One of the structures occurring in the vertical ozone profile is laminae, which are narrow layers of enhanced or depleted ozone concentrations in the vertical ozone profile. They are connected with the total amount of ozone in the atmosphere and with the activity of the planetary and gravity waves.The aim of this paper is to quantify these processes in midlatitudinal Europe. We compare the occurrence of laminae induced by planetary waves (PL) with the occurrence of these induced by gravity waves (GL). We show that the PL are 10–20 times more frequent than that of GL. There is a strong annual variation of PL, while GL exhibit only a very weak variation. With the increasing lamina size the share of GL decreases and the share of PL increases. The vertical profile of lamina occurrence is different for PL and GL smaller than 2mPa. For laminae greater than 2mPa this difference is smaller.

Permanent Link: http://hdl.handle.net/11104/0297356