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Seasonal Geopotential Height Anomaly at 925 hPa

This map shows the seasonal (3-month average) geopotential height climatology and anomalies at the 925 hPa pressure level in the atmosphere using the 1981-2010 base period for the season shown.

Seasonal geopotential height climatology values are shown as grey contours with a contour interval of 30 geopotential meters (gpm). Positive geopotential height anomalies are shown in yellow and orange, and negative anomalies are shown in shades of blue and are also expressed in units of gpm.

Dataset Documentation

Seasonal Geopotential Height Anomaly at 925 hPa

Data
NCEP-NCAR Reanalysis monthly geopotential height at 925 hPa on a 2.5° lat/lon grid
Data Source
NOAA National Centers for Environmental Prediction (NCEP) (NCEP/NCAR Reanalysis)
Analysis
Seasonal (3-month average) geopotential height climatology and anomalies using the 1981-2010 base period

Dataset

Access the dataset used to create this map.

Helpdesk

Contact help@iri.columbia.edu with any technical questions or problems with this Map Room.