Climate Prediction Center Monthly(CPC)Arctic Oscillation Index

Metadata Updated: February 6, 2017

The Arctic Oscillation (AO) is a leading teleconnection pattern in the Northern Hemisphere circulation. It is calculated as the first Empirical Orthogonal Function (EOF) for height anomalies poleward of 20 degrees latitude for the Northern Hemisphere. The goal of the EOF procedure is to capture the maximum amount of explained variance in the circulation fields.

Access & Use Information

Downloads & Resources

Dates

Metadata Date April 22, 2011
Metadata Created Date September 26, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) June 1, 2000 (publication)
Frequency Of Update monthly

Metadata Source

Harvested from NOAA CSW Harvest Source

Graphic Preview

The Arctic Oscillation index monitors the time variability of the leading EOF of 1000mb geopotential height.

Additional Metadata

Resource Type Dataset
Metadata Date April 22, 2011
Metadata Created Date September 26, 2015
Metadata Updated Date February 6, 2017
Reference Date(s) June 1, 2000 (publication)
Responsible Party Climate Prediction Center, NOAA (Point of Contact)
Contact Email
Access Constraints Access Constraints: None Use Constraints: Acknowledgment of the Data Originator when using the data item as a source. Distribution Liability: The user assumes the entire risk related to its use of this data. NWS is providing this data "as is," and NWS disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will NWS be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit resulting from any use or misuse of this data. As required by 17 U.S.C. 403, third parties producing copyrighted works consisting predominantly of the material appearing in NWS Web pages must provide notice with such work(s) identifying the NWS material incorporated and stating that such material is not subject to copyright protection. Refer the NOAA National Weather Service disclaimer; http://www.weather.gov/disclaimer.php
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat 20
Bbox West Long -180
Coupled Resource
Frequency Of Update monthly
Graphic Preview Description The Arctic Oscillation index monitors the time variability of the leading EOF of 1000mb geopotential height.
Graphic Preview File http://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/new.ao.loading.gif
Graphic Preview Type GIF
Guid gov.noaa.cpc:CPC-TCON-MLY-AO-v2006
Harvest Object Id 5c279be4-924a-442f-8abe-e1c6dfc482ae
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1950-01-01
Temporal Extent End 2014-08-25T10:50:04.763-04:00

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