A SYNOPTIC ANALYSIS OF CYCLONIC ACTIVITIES AT DIFFERENT LEVELS OF IRAN ATMOSPHERE CASE STUDY: YEAR 1990

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

KHOSRAVI MAHMOOD; MOVAHEDI SAEID; HASHEMIANA SEYED KERAMAT; HEYDARI BEHROOZ

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

Journal Paper

Paper Information

Journal: Geography and Development Year:2014 | Volume:12 | Issue:35 Page(s): 83-95

Download Full-Text

Persian Verion

View:

1,063

Download:

Cites:

Information Journal Paper

Title

A SYNOPTIC ANALYSIS OF CYCLONIC ACTIVITIES AT DIFFERENT LEVELS OF IRAN ATMOSPHERE CASE STUDY: YEAR 1990

Author(s)

KHOSRAVI MAHMOOD | MOVAHEDI SAEID | HASHEMIANA SEYED KERAMAT | HEYDARI BEHROOZ | Issue Writer Certificate

Keywords

CYCLONEQ2

GEO POTENTIAL HEIGHTQ2

SYNOPTICQ2

MEDITERRANEAN SEAQ2

IRANQ2

Abstract

The present research has studied the SYNOPTIC of cyclonic activities at different levels of IRAN's atmosphere. The CYCLONE-genesis zones and its movement paths can be identified by several algorithms. This research has performed to identify the temporal and spatial conditions of effective CYCLONEs on IRAN climate on seasonal and monthly scales. To identify the CYCLONEs, 6hours data of GEO POTENTIAL HEIGHTs (HGT) for 1000, 925, 850, 700, and 500 hPa levels were extracted from NCEP/NCAR database for coordinates of 30owest up to 80o east and 0o-80o north for year 1990. The statistical analysis of CYCLONEs in several levels of atmosphere showed that in 1990, maximum number of CYCLONEs occurred in 500 hPa level and the least frequencies occurred in 850 hPa that have only 990 CYCLONEs. Generally in 500 and 700 hPa, the peak of Mediterranean CYCLONEs activities occurred in December to February. In cold period, a CYCLONE-genesis center has been located in Italy. The second CYCLONE- genesis center is extended from Greece up to Cypress. In winter, Italian CYCLONE-genesis centers are transferred to eastern half of MEDITERRANEAN SEA, on Cypress, Syria and Turkey. These locations comprise the main CYCLONE- genesis centers in winter. Generally it seems that the expanding limit of dynamic CYCLONEs are from 500 to 700 hp level. Only if the CYCLONE is very strong it can be seen at levels lower than 700 hPa.

Cites

No record.

References

No record.

Cite

APA: Copy

KHOSRAVI, MAHMOOD, MOVAHEDI, SAEID, HASHEMIANA, SEYED KERAMAT, & HEYDARI, BEHROOZ. (2014). A SYNOPTIC ANALYSIS OF CYCLONIC ACTIVITIES AT DIFFERENT LEVELS OF IRAN ATMOSPHERE CASE STUDY: YEAR 1990. GEOGRAPHY AND DEVELOPMENT, 12(35), 83-95. SID. https://sid.ir/paper/77366/en

Vancouver: Copy

KHOSRAVI MAHMOOD, MOVAHEDI SAEID, HASHEMIANA SEYED KERAMAT, HEYDARI BEHROOZ. A SYNOPTIC ANALYSIS OF CYCLONIC ACTIVITIES AT DIFFERENT LEVELS OF IRAN ATMOSPHERE CASE STUDY: YEAR 1990. GEOGRAPHY AND DEVELOPMENT[Internet]. 2014;12(35):83-95. Available from: https://sid.ir/paper/77366/en

IEEE: Copy

MAHMOOD KHOSRAVI, SAEID MOVAHEDI, SEYED KERAMAT HASHEMIANA, and BEHROOZ HEYDARI, “A SYNOPTIC ANALYSIS OF CYCLONIC ACTIVITIES AT DIFFERENT LEVELS OF IRAN ATMOSPHERE CASE STUDY: YEAR 1990,” GEOGRAPHY AND DEVELOPMENT, vol. 12, no. 35, pp. 83–95, 2014, [Online]. Available: https://sid.ir/paper/77366/en

Related Journal Papers