Fig. 2: Prediction skill in CESM2reforecast experiments.
From: Quantifying sources of subseasonal prediction skill in CESM2

Annual 2mT ACC for CESM2 over ocean and land for weeks 1–2 (a, d, g, j, m, p, s, v), weeks 3–4 (b, e, h, k, n, q, t, w), and weeks 5-6 (c, f, i, l, o, r, u, x) for standard reforecasts (a–c), climoATM (d–f), climoLND (g–i), climoOCN (j–l), climoALL (m–o), climoOCNclimoLND (p–r), climoOCNclimoATM (s–u), climoATMclimoLND (v–x). The white shading indicates regions not significantly different from zero according to a t test at the 95% confidence level. Areas of ACC in the experimental reforecast sets that are not statistically different from standard reforecasts are stippled.