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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Format: | Article |
Language: | fas |
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Kharazmi University
2025-03-01
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Series: | تحقیقات کاربردی علوم جغرافیایی |
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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 |