[Originating_Center='NOAA/NWS/CPC']
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West Pacific Teleconnection Patterns from NOAA/Climate Prediction Center Entry ID: NOAA_NWS_CPC_WP |
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Summary
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Abstract:
[Source: NOAA Climate Prediction Center, http://www.cpc.ncep.noaa.gov/ ] The WP pattern is a primary mode of low-frequency variability over the North Pacific in all months, and has been previously described by both Barnston and Livezey (1987) and Wallace and Gutzler (1981). During winter and spring, the pattern consists of a north-south dipole of anomalies, with one center located over the Kamchatka Peninsula and another broad center of opposite sign covering portions of southeastern Asia and the low latitudes of the extreme western North Pacific. Therefore, strong positive or negative phases of this pattern reflect pronounced zonal and meridional variations in the location and intensity of the entrance region of the Pacific (or East Asian) jet steam. In the summer and fall, the WP pattern becomes increasingly wave-like, and a third prominent center appears over Alaska and the Beaufort Sea, with a sign opposite to the center over the western North Pacific. This wave structure is most evident in the Fall, when it extends downstream along a quasi great-circle route into the western United States. The time series of the WP pattern indicates considerable intermonthly and interannual variability, and persistence of a particular phase of the pattern is relatively common. |
Related URL
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Link:
GET DATA
Description: Access to WP documentation, graphs and data Link: GET DATA Description: Access to WP Index data since 1948 |
Geographic Coverage
| N: 45.0 | S: 0.0 | E: -165.0 | W: 90.0 |
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Data Set Citation
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Dataset Originator/Creator:
NOAA/NWS/CPC
Dataset Title: West Pacific Teleconnection Pattern 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/data/teledoc/wp.shtml |
Temporal Coverage
| Start Date: 1948-01-01 |
Location Keywords
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OCEAN
> PACIFIC OCEAN
> NORTH PACIFIC OCEAN
OCEAN > PACIFIC OCEAN GEOGRAPHIC REGION > NORTHERN HEMISPHERE |
Data Resolution
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Temporal Resolution:
daily, monthly, seasonal
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Science Keywords
| ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS >WEST PACIFIC PATTERN [Definition] |
| ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE ANOMALIES [Definition] |
| CLIMATE INDICATORS >ATMOSPHERIC/OCEAN INDICATORS >TELECONNECTIONS >WEST PACIFIC INDEX [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
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Keywords
| West Pacific Pattern |
| climate index |
| climate indices |
| forecast indices |
| atmospheric circulation |
| climate change |
| teleconnections |
Data Set Progress
| IN WORK |
Originating Center
| NOAA/NWS/CPC |
Data Center
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Climate Prediction Center, National Centers for Environmental Prediction, National Weather Service, NOAA, U.S. Department of Commerce
[Information]
Data Center URL: http://www.cpc.ncep.noaa.gov/ Dataset ID: West Pacific Pattern
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Distribution
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Distribution_Media:
online www
Distribution_Format: ascii Fees: none |
Personnel
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ED
O'LENIC Role: TECHNICAL CONTACT Email: Ed.Olenic at noaa.gov |
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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
Barnston, A.G., and R.E. Livezey, 1987: Classification, seasonality
and persistence of low - frequency atmospheric circulation
patterns. Mon. Wea. Rev., 115, 1083-1126.
Wallace J.M., and D.S. Gutzler, 1981: Teleconnections in the
geopotential height field during the Northern hemisphere
Winter. Mon. Wea. Rev., 109, 784-812.
and persistence of low - frequency atmospheric circulation
patterns. Mon. Wea. Rev., 115, 1083-1126.
Wallace J.M., and D.S. Gutzler, 1981: Teleconnections in the
geopotential height field during the Northern hemisphere
Winter. Mon. Wea. Rev., 109, 784-812.
Creation and Review Dates
DIF Creation Date:
2003-02-19
Last DIF Revision Date:
2009-11-04
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