Identification

Title

Mesoanalysis of the interactions of precipitating convection and the boundary layer

Abstract

The Oklahoma Mesonet surface wind data and the Arkansas Basin River Forecast Center (ABRFC) gridded hourly precipitation data from May to August, 1997, were used to demonstrate and evaluate a new method for the area-averaged near-cloud-base updraft and downdraft mass fluxes from statistics of the surface divergence field. When precipitation is used as a proxy for near-cloud-base mass fluxes, the preliminary results indicate that surface divergence is fairly well correlated with the precipitation and that the surface divergence lags the precipitation. These results suggest that it is possible to use the proposed method to infer the near-cloud-base mass fluxes. Two CRM simulations of convective systems were also used to evaluate the method. The results show there is a good correlation between the inferred and true near-cloud-base mass fluxes except for some differences in timing and at peak values. An alternative to the original near-cloud-base mass flux method using the surface divergence statistics is to use the surface precipitation.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7rx9cr3

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2012-04-18T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact