Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003.
This study was made following the re-recognition of the cause of occurrences of severe, widespread and persistent frost event in 2003 in Iran. Based on previous studies, the cause of the creation and persistent of this sever frost is the dominancy of Siberian high pressure system. For this purpose,...
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University of Sistan and Baluchistan
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ftdoajarticles:oai:doaj.org/article:d61224ee78674f398af0a9512e356487 2023-07-16T03:57:17+02:00 Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. Dr. Hamid Nazari Pour Allah Baksh Rigi 2016-01-01T00:00:00Z https://doi.org/10.22111/gaij.2016.2273 https://doaj.org/article/d61224ee78674f398af0a9512e356487 FA per University of Sistan and Baluchistan https://gaij.usb.ac.ir/article_2273_a723a7dcf5a445a35d6da8e12b9a161e.pdf https://doaj.org/toc/2345-2277 https://doaj.org/toc/2783-5278 2345-2277 2783-5278 doi:10.22111/gaij.2016.2273 https://doaj.org/article/d61224ee78674f398af0a9512e356487 جغرافیا و آمایش شهری منطقهای, Vol 5, Iss 17, Pp 103-118 (2016) frost wave sea level pressure circulation aggregate high pressure system (ahps). iran Geography (General) G1-922 article 2016 ftdoajarticles https://doi.org/10.22111/gaij.2016.2273 2023-06-25T00:35:26Z This study was made following the re-recognition of the cause of occurrences of severe, widespread and persistent frost event in 2003 in Iran. Based on previous studies, the cause of the creation and persistent of this sever frost is the dominancy of Siberian high pressure system. For this purpose, the gridded daily minimum temperature ,northern hemisphere teleconnection indices and sea level pressure data have been used . Based on the indices of frost wave onset index (FWOI),ending and persistent of cold wave and by considering the spread, the location and time patterns, the frost wave of December 2004 was recognized. On this basis, its starting date was recognized 11 December 2011 and its ending as 16 December 2003, which was persisted for 6 days in Iran's area. Also the location pattern of cold wave has had an east ward arrangement and was dominant in more than 75% of Iran's area in its maximum intense. The highest continuation of cold wave was recorded in the Iranian plateau, while the northern shores of the Persian Gulf and Oman Sea on the southern slopes of the Zagros ruggedness have not received the cold wave. Increase and decrease pattern of spatial range of cold wave is a signal for accompany of some recognized systems of sea level pressure with Siberian high pressure system in its occurrence. For this purpose, long term time series (1950-2010) of tele-connection patterns of northern hemisphere were studied from October up to December. For example,co-phase coherence between the patterns of North Sea- Caspian sea, Arctic Oscillation and North Atlantic Oscillation and no phase coherence of the pattern of east of Atlas Ocean- West Russia and the North Pacific Ocean with the standardized index of intensity of Siberian high pressure are the reasons of other pressure systems at the sea level of high pressure system of Siberian in the event of the said frost wave. Assessment of spatial-temporal variability of sea level pressure systems in the before occurrence (08 to 10 December 2003) to occurrence (11 to 16 ... Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Directory of Open Access Journals: DOAJ Articles Arctic Pacific Sever ENVELOPE(166.083,166.083,62.917,62.917) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Persian |
topic |
frost wave sea level pressure circulation aggregate high pressure system (ahps). iran Geography (General) G1-922 |
spellingShingle |
frost wave sea level pressure circulation aggregate high pressure system (ahps). iran Geography (General) G1-922 Dr. Hamid Nazari Pour Allah Baksh Rigi Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
topic_facet |
frost wave sea level pressure circulation aggregate high pressure system (ahps). iran Geography (General) G1-922 |
description |
This study was made following the re-recognition of the cause of occurrences of severe, widespread and persistent frost event in 2003 in Iran. Based on previous studies, the cause of the creation and persistent of this sever frost is the dominancy of Siberian high pressure system. For this purpose, the gridded daily minimum temperature ,northern hemisphere teleconnection indices and sea level pressure data have been used . Based on the indices of frost wave onset index (FWOI),ending and persistent of cold wave and by considering the spread, the location and time patterns, the frost wave of December 2004 was recognized. On this basis, its starting date was recognized 11 December 2011 and its ending as 16 December 2003, which was persisted for 6 days in Iran's area. Also the location pattern of cold wave has had an east ward arrangement and was dominant in more than 75% of Iran's area in its maximum intense. The highest continuation of cold wave was recorded in the Iranian plateau, while the northern shores of the Persian Gulf and Oman Sea on the southern slopes of the Zagros ruggedness have not received the cold wave. Increase and decrease pattern of spatial range of cold wave is a signal for accompany of some recognized systems of sea level pressure with Siberian high pressure system in its occurrence. For this purpose, long term time series (1950-2010) of tele-connection patterns of northern hemisphere were studied from October up to December. For example,co-phase coherence between the patterns of North Sea- Caspian sea, Arctic Oscillation and North Atlantic Oscillation and no phase coherence of the pattern of east of Atlas Ocean- West Russia and the North Pacific Ocean with the standardized index of intensity of Siberian high pressure are the reasons of other pressure systems at the sea level of high pressure system of Siberian in the event of the said frost wave. Assessment of spatial-temporal variability of sea level pressure systems in the before occurrence (08 to 10 December 2003) to occurrence (11 to 16 ... |
format |
Article in Journal/Newspaper |
author |
Dr. Hamid Nazari Pour Allah Baksh Rigi |
author_facet |
Dr. Hamid Nazari Pour Allah Baksh Rigi |
author_sort |
Dr. Hamid Nazari Pour |
title |
Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
title_short |
Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
title_full |
Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
title_fullStr |
Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
title_full_unstemmed |
Interaction between Scandinavian Low Pressure with Siberian- European and North West of Iran High Pressure Systems (Aggregate High Pressure System) associated with frost wave event in Iran: 11 to 16 December 2003. |
title_sort |
interaction between scandinavian low pressure with siberian- european and north west of iran high pressure systems (aggregate high pressure system) associated with frost wave event in iran: 11 to 16 december 2003. |
publisher |
University of Sistan and Baluchistan |
publishDate |
2016 |
url |
https://doi.org/10.22111/gaij.2016.2273 https://doaj.org/article/d61224ee78674f398af0a9512e356487 |
long_lat |
ENVELOPE(166.083,166.083,62.917,62.917) |
geographic |
Arctic Pacific Sever |
geographic_facet |
Arctic Pacific Sever |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_source |
جغرافیا و آمایش شهری منطقهای, Vol 5, Iss 17, Pp 103-118 (2016) |
op_relation |
https://gaij.usb.ac.ir/article_2273_a723a7dcf5a445a35d6da8e12b9a161e.pdf https://doaj.org/toc/2345-2277 https://doaj.org/toc/2783-5278 2345-2277 2783-5278 doi:10.22111/gaij.2016.2273 https://doaj.org/article/d61224ee78674f398af0a9512e356487 |
op_doi |
https://doi.org/10.22111/gaij.2016.2273 |
_version_ |
1771543788702924800 |