Investigation of Vorticity during Prevalent Winter Precipitation in Iran
Joint Authors
Rousta, Iman
Olafsson, Haraldur
Javadizadeh, Farshad
Dargahian, Fatemeh
Shiri-Karimvandi, Amin
Vahedinejad, Sayed Hossein
Doostkamian, Mehdi
Monroy Vargas, Edgar Ricardo
Asadolahi, Anayat
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-30
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In this study, precipitation data for 483 synoptic stations, and the U&V component of wind and HGT data for 4 atmospheric levels were respectively obtained from IRIMO and NCEP/NCAR databases (1961–2013).
The precipitation threshold of 1 mm and a minimum prevalence of 50% were the criteria based on which the prevalent precipitation of Iran was identified.
Then, vorticity of days corresponding to prevalent winter precipitation was calculated and, by performing cluster analysis, the representative days of vorticity were specified.
The results showed that prevalent winter precipitation vorticity in Iran is related to the vorticity patterns of low pressure of Mediterranean-low pressure of Persian Gulf dual-core, low pressure closed of central Iran-high pressure of East Europe, Ural low pressure-Middle East High pressure, Saudi Arabia low pressure-Europe high pressure, and high-pressure belt of Siberia-low pressure of central Iran.
At the same time, the most intense vorticity occurred when the climate of Iran was influenced by a massive belt pattern of Siberian high pressure-low pressure of central Iran.
However, at the time of prevalent winter precipitation in Iran, an intense vorticity is drawn with the direction of Northeast and Northwest from the center of Iraq to the south of Iran.
American Psychological Association (APA)
Rousta, Iman& Javadizadeh, Farshad& Dargahian, Fatemeh& Olafsson, Haraldur& Shiri-Karimvandi, Amin& Vahedinejad, Sayed Hossein…[et al.]. 2018. Investigation of Vorticity during Prevalent Winter Precipitation in Iran. Advances in Meteorology،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118847
Modern Language Association (MLA)
Rousta, Iman…[et al.]. Investigation of Vorticity during Prevalent Winter Precipitation in Iran. Advances in Meteorology No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1118847
American Medical Association (AMA)
Rousta, Iman& Javadizadeh, Farshad& Dargahian, Fatemeh& Olafsson, Haraldur& Shiri-Karimvandi, Amin& Vahedinejad, Sayed Hossein…[et al.]. Investigation of Vorticity during Prevalent Winter Precipitation in Iran. Advances in Meteorology. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1118847
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118847