Identification

Title

Simulations of the response of the mesospheric circulation and temperature to the Antarctic ozone hole

Abstract

The loss of ozone that has occurred in the Antarctic lower stratosphere during each spring since 1980 has led to a decrease in the lower stratospheric temperature that persists into the summer season. The temperature changes are accompanied by changes in the zonal wind in the SH stratosphere that affect the filtering of gravity waves propagating into the mesosphere. In simulations with the Whole Atmosphere Community Climate Model (WACCM), the resulting gravity wave changes have led to a weakening of the SH summer upwelling around 65-80 km and of the equatorward flow around 0.01 hPa. The trend occurs primarily in the years 1975-1990. The circulation changes are accompanied by an increase in the SH temperature at 65-85 km and a decrease at 95 km. Comparison of the summer temperatures in the NH and SH indicates a distinctive offset beginning around 1980. The increase in temperature near the SH summer mesopause has implications for the presence of polar mesospheric clouds.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7mc90hn

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

2010-11-18T00:00:00Z

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