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Monthly Sea Level Pressure Anomaly

This is a contour map of monthly average sea level pressure anomalies for the globe with respect to the 1981-2010 climatology.

The sea level pressure anomalies are calculated from the NCEP-NCAR Reanalysis data set and mapped in units of millibars (mb), or hectopascals (hPa), with a contour interval of 2 mb.

Dataset Documentation

Monthly Sea Level Pressure Anomaly

Data
NCEP-NCAR Reanalysis monthly sea level pressure on a 2.5° lat/lon grid
Data Source
NOAA National Centers for Environmental Prediction (NCEP) (NCEP/NCAR Reanalysis)
Analysis
Contour map of monthly sea level pressure anomalies with respect to 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.