Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia
The cold pool outflow has been previously shown to be generated by decaying Mesoscale Convective Complexes (MCCs) in the Maritime Continent. The cold pool also has a main role in the development processes of oceanic convective systems inducing heavy rainfall. This study investigated a cold pool even...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
|
| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2021/2047609 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561379710599168 |
|---|---|
| author | Erma Yulihastin Ibnu Fathrio Trismidianto Fadli Nauval Elfira Saufina Wendi Harjupa Didi Satiadi Danang Eko Nuryanto |
| author_facet | Erma Yulihastin Ibnu Fathrio Trismidianto Fadli Nauval Elfira Saufina Wendi Harjupa Didi Satiadi Danang Eko Nuryanto |
| author_sort | Erma Yulihastin |
| collection | DOAJ |
| description | The cold pool outflow has been previously shown to be generated by decaying Mesoscale Convective Complexes (MCCs) in the Maritime Continent. The cold pool also has a main role in the development processes of oceanic convective systems inducing heavy rainfall. This study investigated a cold pool event (January 1-2, 2021) related to a heavy rainfall system over the coastal region of Lampung, Southern Sumatra, within a high-resolution model simulation using a regional numerical weather prediction of the Weather Research and Forecasting (WRF) with convection permitting of 1 km spatial resolution, which was validated by satellite and radar data observations. It is important to note that the intensity, duration, timing, and structure of heavy rainfall simulated were in good agreement with satellite-observed rainfall. The results also showed that a cold pool (CP) plays an important role in inducing Mesoscale Convective Complex (MCC) and was responsible for the development of an offshore propagation of land-based convective systems due to the late afternoon rainfall over inland. This study also suggests that the propagation speed of the CP 8.8 m·s−1 occurring over the seaside of the coastal region, the so-called CP-coastal, is a plausible mechanism for the speed of the offshore-propagating convection, which is dependent on both the background prevailing wind and outflow. These conditions help to maintain the near-surface low temperatures and inhibit cold pool dissipation, which has implications for the development of consecutive convection. |
| format | Article |
| id | doaj-art-add91b8a43404aa19450d9700d2ea68a |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-add91b8a43404aa19450d9700d2ea68a2025-02-03T01:25:15ZengWileyAdvances in Meteorology1687-93091687-93172021-01-01202110.1155/2021/20476092047609Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, IndonesiaErma Yulihastin0Ibnu Fathrio1Trismidianto2Fadli Nauval3Elfira Saufina4Wendi Harjupa5Didi Satiadi6Danang Eko Nuryanto7Research Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch Center of Atmospheric Science and Technology, Research Organization of Aeronautics and Space, National Research and Innovation Agency, Bandung, West Java 40173, IndonesiaResearch and Development Center, Indonesian Agency for Meteorology Climatology and Geophysics, Jakarta Pusat 10720, IndonesiaThe cold pool outflow has been previously shown to be generated by decaying Mesoscale Convective Complexes (MCCs) in the Maritime Continent. The cold pool also has a main role in the development processes of oceanic convective systems inducing heavy rainfall. This study investigated a cold pool event (January 1-2, 2021) related to a heavy rainfall system over the coastal region of Lampung, Southern Sumatra, within a high-resolution model simulation using a regional numerical weather prediction of the Weather Research and Forecasting (WRF) with convection permitting of 1 km spatial resolution, which was validated by satellite and radar data observations. It is important to note that the intensity, duration, timing, and structure of heavy rainfall simulated were in good agreement with satellite-observed rainfall. The results also showed that a cold pool (CP) plays an important role in inducing Mesoscale Convective Complex (MCC) and was responsible for the development of an offshore propagation of land-based convective systems due to the late afternoon rainfall over inland. This study also suggests that the propagation speed of the CP 8.8 m·s−1 occurring over the seaside of the coastal region, the so-called CP-coastal, is a plausible mechanism for the speed of the offshore-propagating convection, which is dependent on both the background prevailing wind and outflow. These conditions help to maintain the near-surface low temperatures and inhibit cold pool dissipation, which has implications for the development of consecutive convection.http://dx.doi.org/10.1155/2021/2047609 |
| spellingShingle | Erma Yulihastin Ibnu Fathrio Trismidianto Fadli Nauval Elfira Saufina Wendi Harjupa Didi Satiadi Danang Eko Nuryanto Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia Advances in Meteorology |
| title | Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia |
| title_full | Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia |
| title_fullStr | Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia |
| title_full_unstemmed | Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia |
| title_short | Convective Cold Pool Associated with Offshore Propagation of Convection System over the East Coast of Southern Sumatra, Indonesia |
| title_sort | convective cold pool associated with offshore propagation of convection system over the east coast of southern sumatra indonesia |
| url | http://dx.doi.org/10.1155/2021/2047609 |
| work_keys_str_mv | AT ermayulihastin convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT ibnufathrio convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT trismidianto convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT fadlinauval convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT elfirasaufina convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT wendiharjupa convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT didisatiadi convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia AT danangekonuryanto convectivecoldpoolassociatedwithoffshorepropagationofconvectionsystemovertheeastcoastofsouthernsumatraindonesia |