Research Article Open Access

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

Manuchehr Farajzadeh, Asadolah Khorany and Hassan Lashkary

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.

American Journal of Applied Sciences
Volume 5 No. 10, 2008, 1308-1312

DOI: https://doi.org/10.3844/ajassp.2008.1308.1312

Submitted On: 19 December 2007 Published On: 31 October 2008

How to Cite: Farajzadeh, M., Khorany, A. & Lashkary, H. (2008). The Relation Between Jet Stream Location and Cyclones Over the Western Iran. American Journal of Applied Sciences, 5(10), 1308-1312. https://doi.org/10.3844/ajassp.2008.1308.1312

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Keywords

  • Jet streams
  • precipitation
  • Iran
  • relation between jet streams and rainfall
  • synoptic systems