TMP2m ensemble stripes by longitude


Monthly 2m-temperature anomalies (w.r.t. 1961-90) from the 20CRv3 ensemble. The vertical axis is longitude, and each pixel is an area-weighted latitudinal mean from a randomly selected ensemble member.

Sampling randomly from the ensemble means that regions where the variance across the ensemble is larger than the ensemble mean appear speckled. This provides an indication of uncertainty.