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A wave-relative framework analysis of AEW-MCS interactions leading to tropical cyclogenesis
Identification_Information:
Citation:
Citation_Information:
Originator:The Pennsylvania State University
Publication_Date:2020
Title:
A wave-relative framework analysis of AEW-MCS interactions leading to tropical cyclogenesis
Other_Citation_Details:
Núñez Ocasio, K.M., J.L. Evans, and G.S. Young, 2020: Mon. Wea. Rev., A wave-relative framework analysis of AEW-MCS interactions leading to tropical
Online_Linkage: http://www.datacommons.psu.edu/
Description:
Abstract: 
An African easterly wave (AEW) and associated mesoscale convective systems (MCSs) dataset has been created and used to evaluate the propagation of MCSs, AEWs, and especially, the propagation of MCSs relative to the AEW they are associated with (i.e., wave-relative framework). The thermodynamic characteristics of AEW-MCS systems are also analyzed. The analysis is done for both AEW-MCS systems that develop into tropical cyclones and those that do not to quantify significant differences. It is shown that developing AEWs over West Africa are associated with a larger number of Convective Cloud Clusters (CCCs; squall line-type systems) than non-developing AEWs. The MCSs of developing AEWs propagate at the same speed of the AEW trough in addition to being in phase with the trough, whereas convection associated with non-developing AEWs over West Africa moves faster than the trough and positioned south of it. These differences become important for the intensification of the AEW vortex as this slower-moving convection, i.e. moving at the same speed of the AEW trough, spends more time supplying moisture and latent heat to the AEW vortex supporting its further intensification. An analysis of the rainfall rate (MCS intensity), MCS area and latent heating rate contribution reveals that there are statistically significant differences between developing AEWs and non-developing AEWs, specially over West Africa where the fraction of extremely large MCS areas associated with developing AEWs is larger than for non-developing AEWs.
Supplemental_Information: 
Authors: Núñez Ocasio, K.M., J.L. Evans, and G.S. Young
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:2020
Currentness_Reference: 
publication date
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:climatologyMeteorologyAtmosphere
Access_Constraints:None.
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The University excludes any and all implied warranties, including warranties or merchantability and fitness for a particular purpose.
The University makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance.
The University will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
The USER is granted permission to translate and add value to the FILES for the use of the FILES on its computer hardware; provided, however, that the USER annually notify the University of any customizing or value-adding work done.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person:K.M. Núñez Ocasio
Contact_Organization:Penn State
Contact_Address:
Address_Type:mailing address
Address: 
402 Walker Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:USA
Contact_Electronic_Mail_Address:kmn18@psu.edu
Contact Instructions: 
Núñez Ocasio, K.M., J.L. Evans, and G.S. Young, 2020:  Mon. Wea. Rev., A wave-relative framework analysis of AEW-MCS interactions leading to tropical
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Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Organization:Penn State Data Commons
Contact_Address:
Address_Type:mailing and physical address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:(814) 865 - 8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Distribution_Liability: 
The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.
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Metadata_Reference_Information:
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:Penn State Data Commons
Contact_Position:Metadata Coordinator
Contact_Address:
Address_Type:mailing address
Address: 
115 Land and Water Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:United States
Contact_Voice_Telephone:814-865-8792
Contact_Electronic_Mail_Address:datacommons@psu.edu
Metadata_Standard_Name:FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version:FGDC-STD-001-1998
Metadata_Time_Convention:local time
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