Daily North Atlantic Oscillation (NAO) Index from NOAA/Climate Prediction Center
Entry ID: NOAA_NWS_CPC_NAO

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Summary
Abstract: [Source: NOAA Climate Prediction Center, http://www.cpc.ncep.noaa.gov/ ]

The daily North Atlantic Oscillation (NAO) index is constructed by properly projecting the daily (00Z) 500mb height anomalies over the Northern Hemsiphere onto the loading pattern of the NAO.

The daily NAO index and its forecasts using MRF and Ensemble mean forecast data are available for the previous 120 days and they are normalized by standard deviation of the monthly NAO index from 1950 to 2000. A 3-day running mean is applied for the forecast indices.

Monthly and seasonal (JFM) mean NAO index data from 1950 are also available. See: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao_index.html
Related URL
Description: Access to NAO documentation, graphics, and data.
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Geographic Coverage
Spatial coordinates   
  N: 90.0   S: 35.0   E: 180.0   W: -180.0
Min Altitude: 0MB Max Altitude: 500MB

Data Set Citation
Dataset Originator/Creator: NOAA/NWS/CPC
Dataset Title: Daily North Atlantic Oscillation Index
Dataset Series Name: NOAA/NWS/CPC Indices and Forecasts
Dataset Release Date: ongoing
Dataset Release Place: Camp Springs, MD
Dataset Publisher: NOAA National Weather Service, Center for Climate Prediction
Online Resource: http://www.cpc.ncep.noaa.gov/products/precip/CWlink/pna/nao_index.html
Temporal Coverage
Start Date: 1950-01-01
Data Resolution
Temporal Resolution: daily, monthly, seasonal
Data Set Progress
IN WORK
Originating Center
Distribution
Distribution Media: online www
Distribution Format: ascii
Fees: none
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2003-02-11
Last DIF Revision Date: 2009-11-04
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