American Journal of Applied Sciences

The Relation Between Jet Stream Location and Cyclones Over the Western Iran

Manuchehr Farajzadeh, Asadolah Khorany and Hassan Lashkary

DOI : 10.3844/ajassp.2008.1308.1312

American Journal of Applied Sciences

Volume 5, Issue 10

Pages 1308-1312

Abstract

Daily rain data for the selected stations were obtained from the Meteorological Organization of Iran for the 1985-1999 period. The consecutive rain days of length 1 to 5 days and widespread over the study area were extracted. The jet tracks and speed surges were extracted from the daily weather maps of IRIMO for the 54 selected rainy periods. The results showed that the wind speed does not affect the rain intensity. The jet tracks show negative curvature during the non and low rain days but strong positive curvature during the maximum rain day. The establishment of a deep trough during the intensive rain days caused the jet tracks to concentrate close to the study area.

Copyright

© 2008 Manuchehr Farajzadeh, Asadolah Khorany and Hassan Lashkary. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.