Convection initiation

The structure of deep moist convection can be influenced by various factors, including wind shear, available potential energy of convection, relative humidity, and vertical distribution of these variables. Among these factors, wind shear plays a more significant role in the creation of convection. T...

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Main Authors: Zahra Ghassabi, Hoshang Ghaemi, Ebrahim Mirzaei
Format: Article
Language:fas
Published: Kharazmi University 2025-03-01
Series:تحقیقات کاربردی علوم جغرافیایی
Subjects:
Online Access:http://jgs.khu.ac.ir/article-1-4155-en.pdf
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author Zahra Ghassabi
Hoshang Ghaemi
Ebrahim Mirzaei
author_facet Zahra Ghassabi
Hoshang Ghaemi
Ebrahim Mirzaei
author_sort Zahra Ghassabi
collection DOAJ
description The structure of deep moist convection can be influenced by various factors, including wind shear, available potential energy of convection, relative humidity, and vertical distribution of these variables. Among these factors, wind shear plays a more significant role in the creation of convection. The interaction between large-scale and synoptic-scale processes, along with the adjustment of available potential energy for convection and the presence of convection inhibitors, creates conditions suitable for the development of convection. The large-scale average reduces the convection inhibitor, while even small vertical velocities, such as a few centimeters per second, can have a noticeable impact on the environment's sounding. The presence of potential instability is also considered an important factor in initiating deep moist convection. When the temperature reaches the critical point and the convection inhibitor is removed, moist deep convection begins. If an air parcel rises above the lower stable layer with low relative convective inhibition energy and high relative free convective potential energy, it supports the development of deep moist convection. The initiation of updrafts by warm air masses and the subsequent development of convection depend on parameters like vertical wind shear and the inversion cap of the environment, among others. Large-scale convective systems can be triggered with less forcing due to the significant uplift of the air mass from the surface to the convection level along the front.
format Article
id doaj-art-46eea340bd53467ab06e948d03715439
institution Kabale University
issn 2228-7736
2588-5138
language fas
publishDate 2025-03-01
publisher Kharazmi University
record_format Article
series تحقیقات کاربردی علوم جغرافیایی
spelling doaj-art-46eea340bd53467ab06e948d037154392025-01-31T17:33:43ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382025-03-012576462494Convection initiationZahra Ghassabi0Hoshang Ghaemi1Ebrahim Mirzaei2 The structure of deep moist convection can be influenced by various factors, including wind shear, available potential energy of convection, relative humidity, and vertical distribution of these variables. Among these factors, wind shear plays a more significant role in the creation of convection. The interaction between large-scale and synoptic-scale processes, along with the adjustment of available potential energy for convection and the presence of convection inhibitors, creates conditions suitable for the development of convection. The large-scale average reduces the convection inhibitor, while even small vertical velocities, such as a few centimeters per second, can have a noticeable impact on the environment's sounding. The presence of potential instability is also considered an important factor in initiating deep moist convection. When the temperature reaches the critical point and the convection inhibitor is removed, moist deep convection begins. If an air parcel rises above the lower stable layer with low relative convective inhibition energy and high relative free convective potential energy, it supports the development of deep moist convection. The initiation of updrafts by warm air masses and the subsequent development of convection depend on parameters like vertical wind shear and the inversion cap of the environment, among others. Large-scale convective systems can be triggered with less forcing due to the significant uplift of the air mass from the surface to the convection level along the front.http://jgs.khu.ac.ir/article-1-4155-en.pdfdeep moist convectionconvection initiationpotential energy of convectionconvection inhibition
spellingShingle Zahra Ghassabi
Hoshang Ghaemi
Ebrahim Mirzaei
Convection initiation
تحقیقات کاربردی علوم جغرافیایی
deep moist convection
convection initiation
potential energy of convection
convection inhibition
title Convection initiation
title_full Convection initiation
title_fullStr Convection initiation
title_full_unstemmed Convection initiation
title_short Convection initiation
title_sort convection initiation
topic deep moist convection
convection initiation
potential energy of convection
convection inhibition
url http://jgs.khu.ac.ir/article-1-4155-en.pdf
work_keys_str_mv AT zahraghassabi convectioninitiation
AT hoshangghaemi convectioninitiation
AT ebrahimmirzaei convectioninitiation