Seasonal Streamfunction Anomaly at 500 hPa

This map shows the seasonal (3-month average) streamfunction climatology and anomalies at the 500 hPa pressure level in the atmosphere using the 1991-2020 base period for the season shown.

The seasonal streamfunction climatology values are shown as grey contours with a contour interval of 10E+06 m2/s; dashed contours represent negative values, and solid contours represent positive values. Positive streamfunction anomalies are shown in yellow and orange, and negative anomalies are shown in shades of blue and are also expressed in units of m2/s.

Dataset Documentation

Seasonal Streamfunction Anomaly at 500 hPa

Data

NCEP-NCAR Reanalysis monthly streamfunction at 500 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) streamfunction climatology and anomalies using the 1991-2020 base period

Helpdesk

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