A Multi-scale Analysis of African Easterly Waves in 2000
Author : Gareth J. Berry
Publisher :
Page : 258 pages
File Size : 17,61 MB
Release : 2004
Category : Atmosphere
ISBN :
Author : Gareth J. Berry
Publisher :
Page : 258 pages
File Size : 17,61 MB
Release : 2004
Category : Atmosphere
ISBN :
Author :
Publisher :
Page : pages
File Size : 38,99 MB
Release : 2004
Category :
ISBN :
This research focuses on the formation and maintenance of an African Easterly Wave (AEW) that developed over Northern Africa in 2000. Specifically, the pre-development period of Hurricane Alberto that initially formed over the Ethiopian Highlands (EH) region is studied in conjunction with this AEW disturbance. Based on EUMETSAT infrared (IR) satellite imagery and ECMWF 0.5o observational model (EOM) analysis data, we identified four convective genesis periods (G-I, G-II, G-III, and G-IV) and three lysis periods (L-I, L-II, and L-III). Based on the EOM analysis of the pre-Alberto system, we found that moisture and vertical velocity played a major role in the generation and maintenance of the convective cycles associated with the pre-Alberto system as it traveled westward across Northern Africa. Initially, orographic effects induce vertical velocity and moisture, and as the Alberto system travels westward these parameters are governed more by environmental factors. The National Center for Atmospheric Research (NCAR) Regional Climate Model Version 3.0 (henceforth RegCM3) was used to run the control case and several sensitivity simulations. We found that the EH is important for focusing and organizing AEW features by producing a consistent stationary wave mode, generating lee side vorticity, and initially providing sufficient vertical moisture flux for convection. PBL effects over the EH cause the initial convection in response to diurnal diabetic heating. As this convection propagates downstream, it merges with the orographically generated MV on the lee of the EH and a MCC results. PBL effects and moisture availability are important for propagating and maintaining AEW disturbances as they travel to the west and supporting sufficient moisture by allowing for surface moisture fluxes to affect these systems and aid in convective development. The AEW is slightly modulated by orography downstream from the EH region. Both the EH region and the PBL effects are essential in th.
Author : Susanne Bachner
Publisher :
Page : 128 pages
File Size : 42,21 MB
Release : 2002
Category :
ISBN :
Author : Chih-pei Chang
Publisher : World Scientific
Page : 419 pages
File Size : 24,50 MB
Release : 2021-01-04
Category : Science
ISBN : 9811216614
The Multiscale Global Monsoon System is the 4th and most up-to-date edition of the global monsoon book series produced by a group of leading international experts invited by the World Meteorological Organization's Working Group on Tropical Meteorology Research. The contents reflect the state of the knowledge of all scales of monsoon in the world's monsoon regions. It includes 31 chapters in five parts: Regional Monsoons, Extreme Weather, Intraseasonal Variations, Climate Change, and Field Experiments.
Author : Venugopal Vuruputur
Publisher : Elsevier
Page : 366 pages
File Size : 24,15 MB
Release : 2018-08-28
Category : Science
ISBN : 0128092572
Tropical Extremes: Natural Variability and Trends features the most up-to-date information on present and future trends related to climate change and tropical extremes. Including contributions from the foremost experts in the field, this important reference addresses the science behind climate change and natural variability in relation to tropical extremes. The book also includes practical insight into modeling and observation approaches. In a warming world, the increase of weather extremes presents a scientifically complex and societally relevant challenge. The book confronts these challenges with observational evidence, modeling studies and expected impacts. This is an essential reference for researchers, modelers and students in the fields of climate and atmospheric science looking to better understand the causes and effects of tropical extremes and natural variability. - Illuminates the role of natural variability and climate change in determining the fate and state of tropical extremes - Offers a robust guide for analysis relating to the impacts of extremes, thus providing a potential roadmap for navigating the future of risk analysis and the water-food-energy nexus - Edited by a diverse team of global experts - Includes contributions from leading researchers in the field, comprising the most up-to-date understanding of tropical extremes
Author : Ting-Hsin Bruce Kuo
Publisher :
Page : 85 pages
File Size : 15,7 MB
Release : 1998
Category :
ISBN :
Author : Katie Ellen Robertson
Publisher :
Page : 116 pages
File Size : 44,34 MB
Release : 2004
Category :
ISBN :
Keywords: wave, MCC, AEW, African Easterly Waves, mesoscale convective complexes.
Author : Douglas J. Parker
Publisher : John Wiley & Sons
Page : 493 pages
File Size : 16,77 MB
Release : 2017-02-13
Category : Science
ISBN : 1118391276
Meteorology of tropical West Africa: the Forecasters’ Handbook presents the science and practice of weather forecasting for an important region of the tropics. Connecting basic theory with forecasting practice, the book provides a unique training volume for operational weather forecasters, and is also suitable for students of tropical meteorology. The West African region contains a number of archetypal climatic zones, meaning that the science of its weather and climate applies to many other tropical regions. West Africa also exhibits some of the world’s most remarkable weather systems, making it an inspiring region for students to investigate. The weather of West Africa affects human livelihoods on a daily basis, and can contribute to hardship, poverty and mortality. Therefore, the ability to understand and predict the weather has the potential to deliver significant benefits to both society and economies. The book includes comprehensive background material alongside documentation of weather forecasting methods. Many examples taken from observations of West African weather systems are included and online case-studies are referenced widely.
Author : Douglas J. Parker
Publisher : John Wiley & Sons
Page : 490 pages
File Size : 14,32 MB
Release : 2017-04-24
Category : Science
ISBN : 1118391306
Meteorology of tropical West Africa: the Forecasters’ Handbook presents the science and practice of weather forecasting for an important region of the tropics. Connecting basic theory with forecasting practice, the book provides a unique training volume for operational weather forecasters, and is also suitable for students of tropical meteorology. The West African region contains a number of archetypal climatic zones, meaning that the science of its weather and climate applies to many other tropical regions. West Africa also exhibits some of the world’s most remarkable weather systems, making it an inspiring region for students to investigate. The weather of West Africa affects human livelihoods on a daily basis, and can contribute to hardship, poverty and mortality. Therefore, the ability to understand and predict the weather has the potential to deliver significant benefits to both society and economies. The book includes comprehensive background material alongside documentation of weather forecasting methods. Many examples taken from observations of West African weather systems are included and online case-studies are referenced widely.
Author :
Publisher :
Page : 316 pages
File Size : 20,2 MB
Release : 2005
Category : Dissertations, Academic
ISBN :
"Education, arts and social sciences, natural and technical sciences in the United States and Canada".