Arctic Oscillation (AO) Index Data
Entry ID: JISAO_ARCTIC_AO

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Summary
Abstract: The University of Washington Joint Institute for the Study of the
Atmosphere and Ocean (JISAO) offers an Arctic Oscillation (AO) Index
dataset. The Arctic Oscillation (AO) is defined as the leading EOF of
Northern Hemisphere sea-level pressure anomalies poleward of 20N,
weighted by area (Thompson and Wallace, 1998).

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Related URL
Description: Access to AO Index documentation, graphs and data from 1899. Data
includes monthly means and seasonal (JFM) means.
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: 75.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: David W. J. Thompson, John. M. Wallace,
Dataset Title: Arctic Oscillation (AO) Index Data
Dataset Release Place: Seattle, Washington, USA
Dataset Publisher: University of Washington Department of Atmospheric Sciences
Temporal Coverage
Start Date: 1851-01-01
Use Constraints Please cite the dataset originator if you use this data.
Data Set Progress
IN WORK
Distribution
Distribution Media: Online (FTP)
Distribution Format: ASCII
Fees: None
Personnel
Role: INVESTIGATOR
Email: davet at atmos.colostate.edu
Contact Address:
Department of Atmospheric Sciences
Colorado State University
City: Fort Collins
Province or State: CO
Postal Code: 80523
Country: USA
Publications/References
References:
David W. J. Thompson and John. M. Wallace, 1998: The Arctic
Oscillation signature in the wintertime geopotential height and
temperature fields. Geophys. Res. Lett., 25, No. 9, 1297-1300.
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1999-07-27
Last DIF Revision Date: 2009-04-13
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