Full Metadata

 Back to Data Summary

FORTRAN code and input files for the Markowski “toy model” version of CM1 (also known as the Bryan Cloud Model)

Identification_Information:
Citation:
Citation_Information:
Originator:The Pennsylvania State University
Publication_Date:2017
Title:
FORTRAN code and input files for the Markowski “toy model” version of CM1 (also known as the Bryan Cloud Model)
Online_Linkage: http://www.datacommons.psu.edu
Description:
Abstract: 
The Markowski-toy-model.tar file contains the FORTRAN code for the “toy model” version of CM1 (also known as the Bryan Cloud Model) used in a series of journal articles from 2014–2017 by Paul Markowski and collaborators.  These articles presented the results of “pseudostorms” generated by a heat source and sink in a vertically sheared environment.  The model can reproduce many aspects of the supercell thunderstorms observed in nature.  The heat source drives an updraft that rotates cyclonically owing to the upward tilting of the streamwise horizontal vorticity imposed in the environment.  The heat sink, centered northeast of the heat source, drives a downdraft that mimics the precipitation-driven downdraft of an actual storm.  

A tornadolike vortex develops at the lowest model level if circulation-rich, near-surface air is associated with weak negative buoyancy and also experiences a large upward-directed vertical perturbation pressure-gradient force owing to its proximity to the overlying heat source and associated midlevel updraft and mesocyclone.  This is most likely to happen when the heat sink is of intermediate strength and the environmental low-level shear is strong. 
  
It is assumed that the user is familiar with CM1.  Documentation for CM1 can be obtained at http://www2.mmm.ucar.edu/people/bryan/cm1/.
Supplemental_Information: 
Publications using this code (see embedded README files for additional details):

Rotunno, R., P. Markowski, and G. Bryan, 2017: “Near-ground” vertical vorticity in supercell thunderstorm models.  Journal of the Atmospheric Sciences, 144, in press.

Markowski, P.M., and Y. P. Richardson, 2017: Large sensitivity of near-surface vertical vorticity development to heat sink location in idealized simulations of supercell-like storms. Journal of the Atmospheric Sciences, 144, 1095–1104.

Markowski, P.M., 2016: An idealized numerical simulation investigation of the effects of surface drag on the development of near-surface vertical vorticity in supercell thunderstorms. Journal of the Atmospheric Sciences, 143, 4349–4385.

Markowski, P. M., and Y. P. Richardson, 2014: The influence of environmental low-level shear and cold pools on tornadogenesis: Insights from idealized simulations.  Journal of the Atmospheric Sciences, 71, 243–275.
Time_Period_of_Content:
Currentness_Reference: 
publication date
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate:-112.846
East_Bounding_Coordinate:-102.148
North_Bounding_Coordinate:45.898
South_Bounding_Coordinate:39.98
Keywords:
Theme:
Theme_Keyword_Thesaurus:ISO 19115 Topic Categories
Theme_Keyword:climatologyMeteorologyAtmosphere
Access_Constraints:None.
Use_Constraints: 
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_Organization_Primary:
Contact_Organization:Penn State
Contact_Person:Paul Markowski
Contact_Position:Professor of Meteorology
Contact_Address:
Address_Type:mailing address
Address: 
520 Walker Building
City:University Park
State_or_Province:Pennsylvania
Postal_Code:16802
Country:USA
Contact_Voice_Telephone:814-865-0428
Contact_Electronic_Mail_Address:pmarkowski@psu.edu
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
Back to Top
Distribution_Information:
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.
Back to Top
Metadata_Reference_Information:
Metadata_Date:2017
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
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name:ESRI Metadata Profile
Back to Top