Data: Outgoing Longwave Radiation
("OLR") anomaly (watts/m2) on a 2.5 x 2.5 deg. lat/lon grid
Base Period for Climatology: 1974-present
Data Source: NCEP, Climate Prediction Center
Description: Pentad (5-day average, centered
on date shown) outgoing longwave radiation as observed by polar-orbiting
satellite. Negative values imply increased cloudiness and enhanced
likliehood of precipitation. Positive anomalies imply decreased cloudiness/precipitation.
The relationship between OLR anomaly and precipitation is most reliable
in tropical regions. |
