Science Keywords>CLIMATE INDICATORS
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Antarctic Oscillation (AO) Time Series Data since 1948 from JISAO Entry ID: JISAO_AAO |
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Summary
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Abstract:
The Antarctic Oscillation (AAO) is the dominant pattern of non-seasonal tropospheric circulation variations south of 30S, and it is characterized by pressure anomalies of one sign centered in the Antarctic and anomalies of the opposite sign centered about 40-50S. The AAO is also referred to as the Southern Annular Mode (SAM). The AAO is defined as the leading principal component (PC) of 850 hPa geopotential height anomalies south of 30S (Thompson and Wallace 2000). For more information on the construction and analyses of this data, see: http://www.jisao.washington.edu/data/aao/ |
Related URL
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Link:
GET DATA
Description: Access to AAO documentation, graphs, and data. Link: GET DATA |
Geographic Coverage
| N: -30.0 | S: -90.0 | E: 180.0 | W: -180.0 |
| Min Altitude: 0 MB | Max Altitude: 850 MB |
Data Set Citation
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Dataset Originator/Creator:
T. Mitchell
Dataset Title: Antarctic Oscillation (AO) Time Series Dataset Release Date: 2002 Dataset Release Place: Seattle, WA Dataset Publisher: JISAO, University of Washington Online Resource: http://www.jisao.washington.edu/data/aao/ |
Temporal Coverage
| Start Date: 1948-01-01 |
Location Keywords
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CONTINENT
> ANTARCTICA
GEOGRAPHIC REGION > POLAR GEOGRAPHIC REGION > SOUTHERN HEMISPHERE |
Data Resolution
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Temporal Resolution:
monthly mean
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Science Keywords
| ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS >ANTARCTIC OSCILLATION INDEX [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE ANOMALIES [Definition] |
| CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >ANTARCTIC OSCILLATION >AAO [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Keywords
| AAO |
| Antractic Oscillation Index |
| climate index |
| climate indices |
| Southern Hemisphere Annular Mode |
| Southern Annular Mode |
| SAM |
| polar vortex |
| atmospheric circulation |
| climate change |
Data Set Progress
| IN WORK |
Originating Center
| JISAO |
Data Center
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Center for Science in the Earth System, Joint Institute for the Study of the Atmosphere and Ocean, Department of Atmospheric Sciences, University of Washington
[Information]
Data Center URL: http://www.cses.washington.edu/
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Distribution
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Distribution_Media:
online www
Distribution_Format: ascii Fees: none |
Personnel
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TODD
MITCHELL Role: TECHNICAL CONTACT Email: mitchell at atmos.washington.edu |
Publications/References
Thompson, D. W. J., and J. M. Wallace, 2000: Annular modes in the extratropical circulation. Part I: Month-to-month variability. J. Climate, 13, 1000-1016.
Thompson, D. W. J., and S. Solomon, 2002: Interpretation of Recent Southern Hemisphere Climate Change. Science, 296, 895-899.
Thompson, D. W. J., and S. Solomon, 2002: Interpretation of Recent Southern Hemisphere Climate Change. Science, 296, 895-899.
Creation and Review Dates
DIF Creation Date:
2003-02-10
Last DIF Revision Date:
2012-01-31
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