Pentad OLR Anomaly

This map shows pentad (5-day average) outgoing longwave radiation anomalies for the globe.

This map shows pentad (5-day average) outgoing longwave radiation (OLR) anomalies in units of Watts/m2. The period used for computing the climatology is 1991-2020. Negative anomalies in green on the map imply increased cloudiness and enhanced likelihood of precipitation. Positive anomalies in brown imply decreased cloudiness and precipitation. The relationship between OLR anomaly and precipitation is most reliable in tropical regions.

These data are from the NOAA NCEP Climate Prediction Center.

Dataset Documentation

Pentad OLR Anomaly

Data

Pentad OLR anomaly values from NOAA AVHRR observations at 2.5° lat/lon resolution

Data Source

NOAA NCEP Climate Prediction Center, Pentad OLR

Analysis

Pentad OLR anomaly using 1991-2020 base period

Helpdesk

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