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...
Published in: | Advances in Meteorology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Advances in Meteorology
2011
|
Subjects: | |
Online Access: | https://doi.org/10.1155/2011/890759 |
id |
fthindawi:oai:hindawi.com:10.1155/2011/890759 |
---|---|
record_format |
openpolar |
spelling |
fthindawi:oai:hindawi.com:10.1155/2011/890759 2023-05-15T17:33:02+02:00 Moisture Sources and Life Cycle of Convective Systems over Western Colombia Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda 2011 https://doi.org/10.1155/2011/890759 en eng Advances in Meteorology https://doi.org/10.1155/2011/890759 Copyright © 2011 Meiry Sayuri Sakamoto et al. Research Article 2011 fthindawi https://doi.org/10.1155/2011/890759 2019-05-26T04:50:44Z 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 Hindawi Publishing Corporation Pacific Advances in Meteorology 2011 1 11 |
institution |
Open Polar |
collection |
Hindawi Publishing Corporation |
op_collection_id |
fthindawi |
language |
English |
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 |
spellingShingle |
Meiry Sayuri Sakamoto Tércio Ambrizzi Germán Poveda Moisture Sources and Life Cycle of Convective Systems over Western Colombia |
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 |
Advances in Meteorology |
publishDate |
2011 |
url |
https://doi.org/10.1155/2011/890759 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://doi.org/10.1155/2011/890759 |
op_rights |
Copyright © 2011 Meiry Sayuri Sakamoto et al. |
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_ |
1766131388568829952 |