North Pacific (NP) Index from Sea level Pressures at NCAR
Entry ID: NCAR_NP

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Summary
Abstract: The North Pacific (NP) Index is the area-weighted sea level pressure
(SLP) over the region 30N-65N, 160E-140W and is used to measure
decadal variations linked to El Nino (ENSO) and La Nina events.

The NP data set consists of;
- Monthly NP Index
- November-March NP Index
- November-March NP Anomaly Index

The NP data set is available from:
http://climatedataguide.ucar.edu/guidance/north-pacific-index-npi-trenberth-and-hurrell-monthly-and-winter

Related URL
Link: GET DATA
Description: Access to the North Pacific Index data set.


Geographic Coverage
 N: 65.0 S: 30.0  E: -140.0  W: 160.0

Data Set Citation
Dataset Originator/Creator: Trenberth, K. and J. Hurrell
Dataset Title: North Pacific Index
Dataset Release Place: Boulder, CO
Dataset Publisher: NCAR
Online Resource: http://climatedataguide.ucar.edu/guidance/north-pacific-index-npi-t...


Temporal Coverage
Start Date: 1899-01-01


Location Keywords
OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
OCEAN > PACIFIC OCEAN


Data Resolution
Temporal Resolution: monthly, seasonal


Science Keywords
ATMOSPHERE >ATMOSPHERIC PRESSURE >DIFFERENTIAL PRESSURE    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE ANOMALIES    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >SEA LEVEL PRESSURE    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >EL NINO SOUTHERN OSCILLATION (ENSO) >ENSO    [Definition]
CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >NORTH PACIFIC OSCILLATION    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
GROUND STATIONS    [Information]


Project
ESIP >Earth Science Information Partners Program    [Information]


Access Constraints
Please cite the dataset creator if you use this data:

NP Index Data provided by the Climate Analysis Section, NCAR, Boulder, USA, Trenberth and Hurrell (1994).


Keywords
CLIMATE INDEX
CLIMATE INDICES
NORTH PACIFIC
SLP
NP
CLIMATE ANOMALIES
EL NINO
ENSO
LA NINA


Data Set Progress
IN WORK


Originating Center
NCAR


Data Center
Climate and Global Dynamics Division, National Center for Atmospheric Research, University Corporation for Atmospheric Research    [Information]
Data Center URL: http://www.cgd.ucar.edu/

Data Center Personnel
Name: CLIMATE AND GLOBAL DYNAMICS DIVISION
Phone: 303.497.1740
Email: cwimert at cgd.ucar.edu
Contact Address:
National Center for Atmospheric Research
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307-3000
Country: USA



Distribution
Distribution_Media: Online
Distribution_Format: ASCII
Fees: None


Personnel
JAMES W. HURRELL
Role: INVESTIGATOR
Email: jhurrell at ucar.edu


GENE R. MAJOR
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov


KEVIN TRENBERTH
Role: INVESTIGATOR
Email: trenbert at ucar.edu
Contact Address:
National Center for Atmospheric Research
P.O. Box 3000
City: Boulder
Province or State: CO
Postal Code: 80307-3000
Country: USA


Publications/References
Trenberth, K.E., and J.W. Hurrell, 1995: Decadal climate variations in
the Pacific. National Research Council, Natural Climate Variability on
Decade-to-Century Time Scales. D. G. Martinson, K. Bryan, M.Ghil,
M. M. Hall, T. R. Karl, E. S. Sarachik, S. Sorooshian, and
L.D. Talley, Eds., National Academy Press, Washington, D.C.: 472-481.

Trenberth. K.E. and J.W. Hurrell, 1995: Decadal Coupled
Atmospheric-Ocean Variations in the North Pacific Ocean. In Climate
Change and Northern Fish Populations. Canadian Special Publication
Fisheries Aquatic Sciences. R.J. Beamish. Ed. 121 15-24.

Hurrell, J.W. and H. van Loon, 1994: A Modulation of the Atmospheric
Annual Cycle in the Southern Hemisphere. Tellus: Vol. 46A, pp.325-338.

Trenberth. K.E. and J.W. Hurrell, 1994: Decadal Atmosphere-Ocean
Variations in the Pacifc. Climate Dynamics: Vol. 9, pp.303-319.

For a complete list of published papers, papers in press and white
papers, see:
http://www.cgd.ucar.edu/~jhurrell/2001-2002.html
http://www.cgd.ucar.edu/~jhurrell/press.html
http://www.cgd.ucar.edu/~jhurrell/white.html

Creation and Review Dates
Last DIF Revision Date: 2013-04-01

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