ANALYSIS OF JET STREAM FREQUENCIES ASSOCIATED WITH SUPER HEAVY RAINFALLS OF IRAN

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MASOODIAN S.A.; MOHAMMADI B.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2011 | Volume:7 | Issue:2 (20) Page(s): 80-91

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Title

ANALYSIS OF JET STREAM FREQUENCIES ASSOCIATED WITH SUPER HEAVY RAINFALLS OF IRAN

Author(s)

MASOODIAN S.A. | MOHAMMADI B. | Issue Writer Certificate

Keywords

SYNOPTIC CLIMATOLOGYQ3

UNSTABILITYQ3

BAROCLINICQ3

DIVERGENCEQ3

CONVERGENCEQ3

Abstract

In this study, the frequency and location of jet streams associated with heavy rainfalls have been analyzed using environmental to circulation approach. Based on the threshold of the upper 99 percent, 125 days of the super and overall heavy rainfall was selected from the IRIMO data base (including 1437 synoptic, climatic, and rain gage stations). Jet stream frequencies and their locations have been detected from 0o to 120o E and 0o to 80o N in five levels (250, 300, 400, 500 and 600 hPa level) at 00:00, 06:00 and 12:00 UTC. The results of this study have shown that jet streams at 00:00 have a remarkable frequency at all levels with the exception of the 250 hPa level. Generally, jet streams are mostly extended from 250 to 600 hPa levels that have provided BAROCLINIC conditions for Iran’s super heavy rainfalls. In this study, the northern half of Saudi Arabia was a major location where jet streams occur or are visible.

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APA: Copy

MASOODIAN, S.A., & MOHAMMADI, B.. (2011). ANALYSIS OF JET STREAM FREQUENCIES ASSOCIATED WITH SUPER HEAVY RAINFALLS OF IRAN. IRAN-WATER RESOURCES RESEARCH, 7(2 (20)), 80-91. SID. https://sid.ir/paper/100277/en

Vancouver: Copy

MASOODIAN S.A., MOHAMMADI B.. ANALYSIS OF JET STREAM FREQUENCIES ASSOCIATED WITH SUPER HEAVY RAINFALLS OF IRAN. IRAN-WATER RESOURCES RESEARCH[Internet]. 2011;7(2 (20)):80-91. Available from: https://sid.ir/paper/100277/en

IEEE: Copy

S.A. MASOODIAN, and B. MOHAMMADI, “ANALYSIS OF JET STREAM FREQUENCIES ASSOCIATED WITH SUPER HEAVY RAINFALLS OF IRAN,” IRAN-WATER RESOURCES RESEARCH, vol. 7, no. 2 (20), pp. 80–91, 2011, [Online]. Available: https://sid.ir/paper/100277/en

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