Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006
2013 Spring. Includes bibliographical references. West Africa is a region characterized by great spatial contrasts in temperature, precipitation, and topography, which combine to create many complex and interesting weather phenomena. In particular, the area is home to a seasonal monsoon, propagating...
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ftmountainschol:oai:mountainscholar.org:10217/79032 2023-06-11T04:15:00+02:00 Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 Davis, Adam James Johnson, Richard Maloney, Eric Kirby, Michael 2007-01-03T04:56:57Z born digital masters theses application/pdf http://hdl.handle.net/10217/79032 English eng eng Colorado State University. Libraries 2000-2019 - CSU Theses and Dissertations Davis_colostate_0053N_11625.pdf http://hdl.handle.net/10217/79032 Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. Text 2007 ftmountainschol 2023-04-29T17:48:31Z 2013 Spring. Includes bibliographical references. West Africa is a region characterized by great spatial contrasts in temperature, precipitation, and topography, which combine to create many complex and interesting weather phenomena. In particular, the area is home to a seasonal monsoon, propagating easterly waves, and some of the most intense thunderstorm systems on Earth. These types of events have both local and global effects - precipitation variability has a major bearing on regional water resource issues, while West Africa is also the source of many of the disturbances that develop into tropical cyclones in the North Atlantic Ocean. Unfortunately, atmospheric data has historically been very sparse in West Africa, leading to an incomplete understanding of many of these meteorological features and a corresponding difficulty in modeling them accurately. An exceptional opportunity for improvement on these fronts exists thanks to the African Monsoon Multidisciplinary Analysis (AMMA) field campaign, which collected an unprecedented quantity of observations throughout the region, with the most concentrated effort during the summer of 2006. This work uses a gridded analysis of radiosonde measurements obtained during AMMA and places those observations in the context of AMMA radar data and satellite rainfall estimates to examine the patterns of kinematic and diabatic quantities in West Africa relative to the summer monsoon phase, easterly wave disturbances, precipitation systems, and the diurnal cycle. Many unique aspects of West African weather compared to conditions elsewhere in the tropics are revealed by this study. The meridional transitions related to the West African monsoon comprise the predominant control on the location and intensity of precipitation at seasonal time scales, with variations in convective activity related to the Madden-Julian Oscillation contributing at 25 to 60 day periods. On shorter time scales of two to six days, easterly wave disturbances look to be the principal factor governing ... Text North Atlantic Mountain Scholar (Digital Collections of Colorado and Wyoming) |
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2013 Spring. Includes bibliographical references. West Africa is a region characterized by great spatial contrasts in temperature, precipitation, and topography, which combine to create many complex and interesting weather phenomena. In particular, the area is home to a seasonal monsoon, propagating easterly waves, and some of the most intense thunderstorm systems on Earth. These types of events have both local and global effects - precipitation variability has a major bearing on regional water resource issues, while West Africa is also the source of many of the disturbances that develop into tropical cyclones in the North Atlantic Ocean. Unfortunately, atmospheric data has historically been very sparse in West Africa, leading to an incomplete understanding of many of these meteorological features and a corresponding difficulty in modeling them accurately. An exceptional opportunity for improvement on these fronts exists thanks to the African Monsoon Multidisciplinary Analysis (AMMA) field campaign, which collected an unprecedented quantity of observations throughout the region, with the most concentrated effort during the summer of 2006. This work uses a gridded analysis of radiosonde measurements obtained during AMMA and places those observations in the context of AMMA radar data and satellite rainfall estimates to examine the patterns of kinematic and diabatic quantities in West Africa relative to the summer monsoon phase, easterly wave disturbances, precipitation systems, and the diurnal cycle. Many unique aspects of West African weather compared to conditions elsewhere in the tropics are revealed by this study. The meridional transitions related to the West African monsoon comprise the predominant control on the location and intensity of precipitation at seasonal time scales, with variations in convective activity related to the Madden-Julian Oscillation contributing at 25 to 60 day periods. On shorter time scales of two to six days, easterly wave disturbances look to be the principal factor governing ... |
author2 |
Johnson, Richard Maloney, Eric Kirby, Michael |
format |
Text |
author |
Davis, Adam James |
spellingShingle |
Davis, Adam James Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
author_facet |
Davis, Adam James |
author_sort |
Davis, Adam James |
title |
Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
title_short |
Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
title_full |
Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
title_fullStr |
Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
title_full_unstemmed |
Kinematic structures, diabatic profiles, and precipitation systems in West Africa during summer 2006 |
title_sort |
kinematic structures, diabatic profiles, and precipitation systems in west africa during summer 2006 |
publisher |
Colorado State University. Libraries |
publishDate |
2007 |
url |
http://hdl.handle.net/10217/79032 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
2000-2019 - CSU Theses and Dissertations Davis_colostate_0053N_11625.pdf http://hdl.handle.net/10217/79032 |
op_rights |
Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright. |
_version_ |
1768371469276938240 |