𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Long-term budget of zonal momentum in the free atmosphere over Europe in winter

✍ Scribed by Eero Holopainen

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
443 KB
Volume
108
Category
Article
ISSN
0035-9009

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Two sets of aerological data are used to study the time‐averaged budget of the zonal momentum in the free atmosphere over Europe in winter. In many respects the budget appears to be different from that reported by Holopainen et al. (1980) for North America.

Over Europe the coriolis force associated with the southward‐directed ageostrophic meridional flow tends to decrease the westerly momentum. A compensating effect is caused by horizontal momentum flux convergence which takes place in the zonal as well as in the meridional plane and is due mainly to transient flow systems (large‐scale turbulence).

The residual term in the momentum budget indicates that over Europe the sub grid‐scale processes on the average cause a small accelerating effect on the large‐scale zonal flow in the upper troposphere. The residual force over the mountainous region of Europe (5 °E ‐ 30 °E, 45 °N ‐ 50 °N) is a decelerating one in agreement with the results for the corresponding area of North America.

📜 SIMILAR VOLUMES

A diagnostic study of the long-term budg
A diagnostic study of the long-term budget of momentum of atmospheric large scale motion over the British Isles
✍ E. O. Holopainen 📂 Article 📅 1979 🏛 John Wiley and Sons 🌐 English ⚖ 781 KB

## Abstract Different terms in the equations of zonal and meridional motion for large scale flow in the atmosphere have been evaluated using British aerological data for the period 1974‐76; the effect of motion on scales smaller than a few hundred kilometres on large scale flow is evaluated as the

Recent increase in persistence of atmosp
Recent increase in persistence of atmospheric circulation over Europe: comparison with long-term variations since 1881
✍ Jan Kyselý; Peter Domonkos 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 378 KB

## Abstract Long‐term changes in the persistence of atmospheric circulation (measured by the mean residence time of circulation types) over Europe since 1881 are studied using the Hess–Brezowsky classification of Grosswetterlagen. A comprehensive statistical analysis is performed utilizing tests fo

Comparative analysis of the long-term va
Comparative analysis of the long-term variability of winter surface temperature in the Black and Aegean Seas during 1982–2004 associated with the large-scale atmospheric forcing
✍ Alexander S. Kazmin; Andrei G. Zatsepin; Harilaos Kontoyiannis 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 189 KB

## Abstract Satellite and reanalysis data for the period 1982–2004 were used to study the long‐term variability of the winter‐mean sea surface temperature (SST) in the Black and Aegean Seas and its connection with the major atmospheric forcing: surface air temperature (SAT), surface wind and North