East Atlantic/West Russia Teleconnection Patterns from NOAA/Climate Prediction Center
Entry ID: NOAA_NWS_CPC_EAWRUS

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

The East Atlantic/ West Russia (EATL/WRUS) pattern is one of two prominent that affects Eurasia during most of the year. This pattern is prominent in all months except June-August, and has been referred to as the Eurasia-2 pattern by Barnston and Livezey (1987). In Winter, two main anomaly centers, located over the Caspian Sea and western Europe, comprise the East Atlantic/ West Russia pattern. A three-celled pattern is then evident in the spring and fall seasons, with two main anomaly centers of opposite sign located over western/ north-western Russia and over northwestern Europe. The third center, having same sign as the Russia center, is located off the Portuguese coast in spring, but exhibits a pronounced retrogression toward Newfoundland in the fall.

The most pronounced and persistent negative phases of the East Atlantic/ West Russia pattern tend to occur in winter and early spring, with particularly large negative phases noted during the winters and early springs of 1969/70, 1976/77 and 1978/79. Pronounced positive phases of the pattern are less common, with the most prominent positive phase evident during late winter/ early spring of 1992/93. During this 1992/93 winter, negative height anomalies were observed throughout western and southwestern Russia, and positive height anomalies were observed throughout Europe and the eastern North Atlantic. These conditions were accompanied by warmer and wetter than normal conditions over large portions of Scandinavia and northwestern Russia, and by much colder and drier than normal conditions over the eastern Mediterranean Sea and the Middle East. During MAM 1993, the area of negative anomalies over western Russia persisted, the positive anomaly center over northwestern Europe became consolidated, and a negative anomaly center became established over the eastern North Atlantic. These conditions brought a continuation of warmer (colder) than normal conditions to Scandinavia (eastern Mediterranean Sea sector), and drier than normal conditions to much of Europe.

Related URL
Link: GET DATA
Description: Access to EATL/WRUS documentation, graphs and data


Geographic Coverage
 N: 70.0 S: 0.0  E: 75.0  W: -77.0

Data Set Citation
Dataset Originator/Creator: NOAA/NWS/CPC
Dataset Title: East Atlantic/West Russia 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/eawruss.shtml


Temporal Coverage
Start Date: 1950-01-01


Location Keywords
OCEAN > ATLANTIC OCEAN
CONTINENT > EUROPE > EASTERN EUROPE > RUSSIA
GEOGRAPHIC REGION > EURASIA
GEOGRAPHIC REGION > EASTERN HEMISPHERE
GEOGRAPHIC REGION > NORTHERN HEMISPHERE


Data Resolution
Temporal Resolution: monthly, seasonal


Science Keywords
ATMOSPHERE >ALTITUDE >GEOPOTENTIAL HEIGHT    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >OSCILLATIONS >EAST ATLANTIC/WEST RUSSIA PATTERN    [Definition]
ATMOSPHERE >ATMOSPHERIC PRESSURE >PRESSURE ANOMALIES    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Keywords
East Atlantic/West Russia Pattern
climate index
climate indices
forecast indices
atmospheric circulation
climate change
teleconnections


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    [Information]
Data Center URL: http://www.cpc.ncep.noaa.gov/
Dataset ID: EATL/WRUS Pattern

Data Center Personnel
Name: ED O'LENIC
Email: Ed.Olenic at noaa.gov



Distribution
Distribution_Media: online www
Distribution_Format: ascii
Fees: none


Personnel
ED O'LENIC
Role: TECHNICAL CONTACT
Email: Ed.Olenic 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
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.

Creation and Review Dates
DIF Creation Date: 2003-02-19
Last DIF Revision Date: 2009-11-04

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