EVALUATING THE OPERATING FORCES IN FORMATION AND DEVELOPMENT OF THE GONU TROPICAL CYCLONE USING KIUE ANALYTICAL MODEL AND NUMERICAL MODELS

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.

MAZRAEH FARAHANI M.; AHMADI M.; SAGHAFI M.A.

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

Journal Paper

Paper Information

Journal: Journal of the Earth and Space Physics Year:2015 | Volume:41 | Issue:2 Page(s): 273-280

Download Full-Text

Persian Verion

View:

988

Download:

Cites:

Information Journal Paper

Title

EVALUATING THE OPERATING FORCES IN FORMATION AND DEVELOPMENT OF THE GONU TROPICAL CYCLONE USING KIUE ANALYTICAL MODEL AND NUMERICAL MODELS

Author(s)

MAZRAEH FARAHANI M. | AHMADI M. | SAGHAFI M.A. | Issue Writer Certificate

Keywords

GONU TROPICAL CYCLONEQ2

ANALYTICAL DYNAMIC MODELQ2

ARPS NUMERICAL MODELQ2

WRF NUMERICAL MODELQ2

Abstract

Gonu storm was formed in tropical basin of Indian Ocean early in June 2007. Gonu is the strongest tropical cyclone that happened in Arabian Sea and North Indian Ocean and moved toward Oman Sea and Persian Gulf and bouncing the lands around the area. This tropical cyclone made extensive damages and human and financial causalities to countries of Oman, Iran, Afghanistan, Pakistan, and India.In this study, an analytical model (Kiue et al., 2010) is applied to the tropical cyclone of Gonu to examine the predicted surface pressure and tangential wind velocity relation. This model is an analytical model includes momentum equation in polar coordinates with a primary hypothesis of the wind blowing is in a Rankine vortex regime. The pattern of surface wind speeds in tropical cyclone complies with the Rankin function, so that in the inner core region, the tangential and radial wind velocity increases linearly with increasing of the radius, and wind speed in the external region is decreasing as radius increases. To examine the dynamic model (Kiue), first the pressure reduction is calculated by this model for GONU TROPICAL CYCLONE. Then the minimum sea level pressure is compared with the equivalent reported pressure by Joint Typhoon Warning Center (JTWC). The results show that the model is capable of predicting the magnitude of falling pressure of tropical cyclone Gonu. Then to investigate the role of different forces on the formation and development of this tropical cyclone, the proposed equation by Kiue was applied and 3 forces of centrifugal, Coriolis and frictional were calculated and also the contribution of those forces on the falling of the pressure in eye of cyclones were computed. It is revealed that the weight of centrifugal force effect is dominant.The data used in this study to examine the analytical model of Kiue, is Gono cyclone best track of JTWC database. The JTWC is the Joint committee of the US Air Force and Marine to warn hurricanes formation and development. It measures the intensity of the storm via Dvorak (1974) method. This study does not mention how this method works, but the Dvorak method is based on satellite imagery, which is operational in most of the storm warning centers.In this study, we also run the ARPS and WRF models and to verify that if calculated surface wind speed of these models for cyclone Gonu is comparable to JTWC database weather they can estimate the intensity of this tropical cyclone. The results show that the surface wind speed output of WRF models do not show the way of Gonu formation. In addition, the maximum surface wind (VMAX) shows that Gonu did not convert to a tropical cyclone as well. According to the results of ARP's model, maximum surface wind (VMAX) is calculated about 82 m/s. However, it has about 9.5 m/s discrepancy with maximum surface wind (VMAX) of JTWS for Gonu. However, this speed shows that the Gonu cyclone is reached to category five hurricanes and converted to a tropical cyclone. Therefore, the model ARPS is more successful.

Cites

No record.

References

No record.

Cite

APA: Copy

MAZRAEH FARAHANI, M., AHMADI, M., & SAGHAFI, M.A.. (2015). EVALUATING THE OPERATING FORCES IN FORMATION AND DEVELOPMENT OF THE GONU TROPICAL CYCLONE USING KIUE ANALYTICAL MODEL AND NUMERICAL MODELS. JOURNAL OF THE EARTH AND SPACE PHYSICS, 41(2), 273-280. SID. https://sid.ir/paper/80453/en

Vancouver: Copy

MAZRAEH FARAHANI M., AHMADI M., SAGHAFI M.A.. EVALUATING THE OPERATING FORCES IN FORMATION AND DEVELOPMENT OF THE GONU TROPICAL CYCLONE USING KIUE ANALYTICAL MODEL AND NUMERICAL MODELS. JOURNAL OF THE EARTH AND SPACE PHYSICS[Internet]. 2015;41(2):273-280. Available from: https://sid.ir/paper/80453/en

IEEE: Copy

M. MAZRAEH FARAHANI, M. AHMADI, and M.A. SAGHAFI, “EVALUATING THE OPERATING FORCES IN FORMATION AND DEVELOPMENT OF THE GONU TROPICAL CYCLONE USING KIUE ANALYTICAL MODEL AND NUMERICAL MODELS,” JOURNAL OF THE EARTH AND SPACE PHYSICS, vol. 41, no. 2, pp. 273–280, 2015, [Online]. Available: https://sid.ir/paper/80453/en

Related Journal Papers