[Originating_Center='NOAA/NWS/CPC']
Zonal Trade Wind Indices Observations and Forecasts at 850mb from NOAA/Climate Prediction Center
Entry ID: NOAA_NWS_CPC_ZONAL850

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

The zonal wind indices are obtained by averaging the daily (00Z) zonal wind anomalies over the indicated area. Note that positive values of the 850 hPa zonal wind indices imply easterly anomalies.

The zonal wind indices and their forecasts using MRF and Enesmble mean forecast data are available for the previous 120 days and they are normalized by standard deviation using 1979-1995 base period. A 3-day running mean is applied for the forecast indices.

Wind anomalies are based on the 1979-1995 period.
Related URL
Link: GET DATA
Description: Access to 850mb zonal wind indices graphs and data.
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates   
  N: 5.0   S: -5.0   E: 180.0   W: 135.0
Min Altitude: 850 MB Max Altitude: 850 MB
  N: 5.0   S: -5.0   E: -140.0   W: 175.0
Min Altitude: 850 MB Max Altitude: 850 MB
  N: 5.0   S: -5.0   E: -120.0   W: -135.0
Min Altitude: 850 MB Max Altitude: 850 MB

Data Set Citation
Dataset Originator/Creator: NOAA/NWS/CPC
Dataset Title: 850 hPa Zonal wind indices : Observation and Forecasts
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/daily_ao_index/...
Temporal Coverage
Start Date: 1979-01-01
Location Keywords
Data Resolution
Temporal Resolution: Monthly
Temporal Resolution Range: Monthly - < Annual
Science Keywords
ISO Topic Category
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
NOAA/NWS/CPC
Data Center
Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce Supplemental Info
Data Center URL: http://www.cpc.ncep.noaa.gov/

Data Center Personnel
Name: DONALD GARRETT
Email: Donald.Garrett at noaa.gov
Distribution
Distribution Media: online www
Distribution Format: ASCII, graphs
Fees: none
Personnel
DONALD GARRETT
Role: TECHNICAL CONTACT
Email: Donald.Garrett at noaa.gov
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Creation and Review Dates
DIF Creation Date: 2003-02-14
Last DIF Revision Date: 2009-11-04

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