Monthly Sea Level Pressure

This is a contour map of monthly average sea level pressure for the globe.

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

Dataset Documentation

Monthly Sea Level Pressure

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 values

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.