JET STREAM ANALYSIS IN THE ENSO PHASES CASE STUDY; 1997, 2008 AND 2010

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.

AZIZI GH.; SAFARRAD T.

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

Journal Paper

Paper Information

Journal: JOURNAL OF CLIMATE RESEARCH Year:2012 | Volume:3 | Issue:9 Page(s): 100-98

Download Full-Text

Persian Verion

View:

1,229

Download:

331

Cites:

Information Journal Paper

Title

JET STREAM ANALYSIS IN THE ENSO PHASES CASE STUDY; 1997, 2008 AND 2010

Author(s)

AZIZI GH. | SAFARRAD T. | Issue Writer Certificate

Keywords

JET STREAMQ2

ONIQ2

ENSOQ2

LINEAR DIRECTIONAL MEANQ2

JET STREAM POSITIONQ2

Abstract

Introduction: The El Nino and La Nina each favor a different location for the dips and bulges of the polar JET STREAM. They also affect the strength of the subtropical JET STREAM. In this way, they influence the weather in middle latitudes. The influence is greatest in the winter months when the coupling of the tropical and mid-latitude patterns is the best. In most El Nino winters, the warming of the air due to strong convection over warm water over the eastern and central Tropical Pacific helps energies the polar and subtropical JET STREAMs to the north. A strong low pressure develops over the Aleutians. The polar JET STREAM curves to the north into northwestern North America, while the subtropical JET STREAM ripples across northern Mexico or the southern United States. During La Nina winters, on the other hand, the polar JET STREAM is strong and the subtropical JET STREAM weaker in the vicinity of North America (D’Aleo & Grube, 2002).The effect of ENSO on precipitation and temperature has been studied in detail by a number of Iranian researchers (Khosh Akhlagh, 1998; Azizi, 2000; Ghayor and Asakereh, 2001; Nazem al-Sadat and Ghassemi, 2003; Masoudian 2005, Khorshid Doost and Ghavidel Rahimi, 2006; Yar Ahmadi and Azizi 2007; Hagh Negahdar et al.; 2007). Most of these researches have attributed the increase and decrease of autumn rainfall to El Nino and La Nina respectively. Although it seems that seasonal distribution of rainfall during different ENSO phases does not follow any particular pattern, different patterns can be seen in each of the two compared phases. Givi et al (2009) indicated the positive and negative anomalies of precipitation in each El Nino and La Nina year. Not enough studies have been done on different phases of ENSO that affect the climate of Iran. This study aims to provide a more comprehensive analysis of changes in the 200Hpa JET STREAM in relation to various ENSO phases (for September, October, November and December).

Cites

TREND ANALYSIS OF THE RECENT SEASONAL CHANGES IN SUBTROPICAL JET STREAM IN CLIMATEOF IRAN

References

No record.

Cite

APA: Copy

AZIZI, GH., & SAFARRAD, T.. (2012). JET STREAM ANALYSIS IN THE ENSO PHASES CASE STUDY; 1997, 2008 AND 2010. JOURNAL OF CLIMATE RESEARCH, 3(9), 100-98. SID. https://sid.ir/paper/403036/en

Vancouver: Copy

AZIZI GH., SAFARRAD T.. JET STREAM ANALYSIS IN THE ENSO PHASES CASE STUDY; 1997, 2008 AND 2010. JOURNAL OF CLIMATE RESEARCH[Internet]. 2012;3(9):100-98. Available from: https://sid.ir/paper/403036/en

IEEE: Copy

GH. AZIZI, and T. SAFARRAD, “JET STREAM ANALYSIS IN THE ENSO PHASES CASE STUDY; 1997, 2008 AND 2010,” JOURNAL OF CLIMATE RESEARCH, vol. 3, no. 9, pp. 100–98, 2012, [Online]. Available: https://sid.ir/paper/403036/en

Related Journal Papers