Monthly Bivariate ENSO Time Series (BEST) Index
Entry ID: NOAA_NWS_CPC_BEST

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Summary
Abstract: [Text Source: Prashant Sardeshmukh and Catherine Smith, "Bivariate EnSo Timeseries or the
"BEST" ENSO Index", http://www.esrl.noaa.gov/psd/people/cathy.smith/best/ ]

[Note change in SST dataset. We are now using the Hadley SST as the GISST is no longer available and the Hadley is considered a better dataset.]

The BEST index was designed to be simple to calculate and to provide a long time period ENSO index for research purposes. Nino 3.4 has traditionally been used as a measure of ENSO strength in the tropical Pacific. However, it's use alone neglects explicit atmospheric processes. By adding the SOI or Southern Oscillation Index (the pressure difference between Tahiti and Darwin), these processes are more directly included. In addition, older SST values are at least partially reconstructed and not explicitly measured. By including the SOI, which is better measured historically, the effect of biases in the SST data introduced by the reconstruction technique are reduced. A more detailed explanation how the index was created is available. Based on 1871-2001 SST and SOI indices

A more detailed explanation how the index was
created is availablev here:
http://www.esrl.noaa.gov/psd/people/cathy.smith/best/

Related URL
Link: GET DATA
Description: Access to monthly BEST index data since 1948


Link: GET DATA
Description: Access to monthly BEST index data since 1871


Link: VIEW RELATED INFORMATION
Description: Access to data, plots, and documentation


Geographic Coverage
 N: 40.0 S: -45.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: NOAA/ESRL/PSD
Dataset Title: BEST ENSO INdex
Dataset Series Name: NOAA Indices and Forecasts
Dataset Release Date: ongoing
Dataset Release Place: Boulder, CO
Dataset Publisher: NOAA/ESRL/PSD
Online Resource: http://www.esrl.noaa.gov/psd/people/cathy.smith/best/


Temporal Coverage
Start Date: 1871-01-01


Location Keywords
OCEAN > PACIFIC OCEAN
GEOGRAPHIC REGION > GLOBAL


Data Resolution
Temporal Resolution: monthly


Science Keywords
OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >EL NINO SOUTHERN OSCILLATION (ENSO) >BEST ENSO INDEX    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >BIVARIATE ENSO TIMESERIES INDEX >BEST ENSO INDEX    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
OCEANS


Keywords
BEST
Bivariate ENSO Time Series
climate index
climate indices
SST
ENSO
SOI
climate change


Data Set Progress
IN WORK


Originating Center
NOAA/NWS/CPC


Data Center
Physical Sciences Division, Earth System Research Laboratory, OAR, NOAA, U.S. Department of Commerce    [Information]
Data Center URL: http://www.esrl.noaa.gov/psd/
Dataset ID: BEST Index

Data Center Personnel
Name: ESRL/PSD DATA INQUIRIES
Email: esrl.psd.data at noaa.gov



Distribution
Distribution_Media: online www
Distribution_Format: ascii
Fees: none


Personnel
ESRL/PSD DATA INQUIRIES
Role: TECHNICAL CONTACT
Email: esrl.psd.data at noaa.gov


SCOTT A. RITZ
Role: DIF AUTHOR
Phone: 301-614-5126
Fax: 301-614-5268
Email: Scott.A.Ritz at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: Maryland
Postal Code: 20771
Country: USA


Publications/References
Smith, C.A. and P. Sardeshmukh (2000), The Effect of ENSO on the Intraseasonal Variance of Surface Temperature in Winter, International J. of Climatology, 20, 1543-1557

Creation and Review Dates
DIF Creation Date: 2005-12-13
Last DIF Revision Date: 2011-04-04

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