Moisture Sources and Life Cycle of Convective Systems over Western Colombia
This paper describes life cycle and moisture sources of mesoscale convective systems (MCSs) observed over western Colombia. Results show that, in general, MCS are more frequent during boreal summer and autumn, and particularly, systems observed in summer season present longer life and larger extensi...
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ftdoajarticles:oai:doaj.org/article:fb1abd07540e43deb762e2f475b820da 2024-09-15T18:23:25+00:00 Moisture Sources and Life Cycle of Convective Systems over Western Colombia Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda 2011-01-01T00:00:00Z https://doi.org/10.1155/2011/890759 https://doaj.org/article/fb1abd07540e43deb762e2f475b820da EN eng Wiley http://dx.doi.org/10.1155/2011/890759 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2011/890759 https://doaj.org/article/fb1abd07540e43deb762e2f475b820da Advances in Meteorology, Vol 2011 (2011) Meteorology. Climatology QC851-999 article 2011 ftdoajarticles https://doi.org/10.1155/2011/890759 2024-08-05T17:48:43Z This paper describes life cycle and moisture sources of mesoscale convective systems (MCSs) observed over western Colombia. Results show that, in general, MCS are more frequent during boreal summer and autumn, and particularly, systems observed in summer season present longer life and larger extension. On the continent, MCS genesis is strongly affected by sea breeze and diurnal heating and presents a peak from 15 to 18 LST. For oceanic systems, the main genesis period is later, from 00 to 03 LST. Continental and oceanic systems present a tendency of westward displacement. Analysis using a Lagrangian approach implemented to estimate air parcel trajectories suggests that, during boreal winter, the main moisture sources are from the Caribbean Sea and tropical north Atlantic, possibly resulting from the moisture-laden trade winds and the land-ocean temperature contrast over northern South America. In summer, it is clear the influence of ITCZ positioning with moisture particles traveling from the tropical Atlantic over Amazonian river basin. In Autumn, Chilean-Peruvian Pacific is the main moisture source, confirming the importance of Chocó low level jet to MCS genesis. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Advances in Meteorology 2011 1 11 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Meteorology. Climatology QC851-999 |
spellingShingle |
Meteorology. Climatology QC851-999 Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
topic_facet |
Meteorology. Climatology QC851-999 |
description |
This paper describes life cycle and moisture sources of mesoscale convective systems (MCSs) observed over western Colombia. Results show that, in general, MCS are more frequent during boreal summer and autumn, and particularly, systems observed in summer season present longer life and larger extension. On the continent, MCS genesis is strongly affected by sea breeze and diurnal heating and presents a peak from 15 to 18 LST. For oceanic systems, the main genesis period is later, from 00 to 03 LST. Continental and oceanic systems present a tendency of westward displacement. Analysis using a Lagrangian approach implemented to estimate air parcel trajectories suggests that, during boreal winter, the main moisture sources are from the Caribbean Sea and tropical north Atlantic, possibly resulting from the moisture-laden trade winds and the land-ocean temperature contrast over northern South America. In summer, it is clear the influence of ITCZ positioning with moisture particles traveling from the tropical Atlantic over Amazonian river basin. In Autumn, Chilean-Peruvian Pacific is the main moisture source, confirming the importance of Chocó low level jet to MCS genesis. |
format |
Article in Journal/Newspaper |
author |
Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda |
author_facet |
Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda |
author_sort |
Meiry Sayuri Sakamoto |
title |
Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
title_short |
Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
title_full |
Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
title_fullStr |
Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
title_full_unstemmed |
Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
title_sort |
moisture sources and life cycle of convective systems over western colombia |
publisher |
Wiley |
publishDate |
2011 |
url |
https://doi.org/10.1155/2011/890759 https://doaj.org/article/fb1abd07540e43deb762e2f475b820da |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Advances in Meteorology, Vol 2011 (2011) |
op_relation |
http://dx.doi.org/10.1155/2011/890759 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2011/890759 https://doaj.org/article/fb1abd07540e43deb762e2f475b820da |
op_doi |
https://doi.org/10.1155/2011/890759 |
container_title |
Advances in Meteorology |
container_volume |
2011 |
container_start_page |
1 |
op_container_end_page |
11 |
_version_ |
1810463636931477504 |