Fig. 4: Predictable atmosphere-ocean anomalies associated with water shortages of the Colorado River.
From: Colorado River water supply is predictable on multi-year timescales owing to long-term ocean memory
Composite maps of annual mean SST (shaded) and 500 hPa geopotential height anomalies (contours) in observations (left) and the ASSIM run (right) during drought years in the model (i.e., 1963, 1976, 2000, 2001, 2002, 2012, and 2013; see Supplementary Fig. 2) at a, b −3, c, d −2, e, f −1, and g, h 0 year lags. Anomalies are defined as deviations from climatological means and linear trends are removed in each grid. Contour intervals are ±3, ±6, ±9, ±12, ±15, ±18, and ±21 hPa. Zero contours are omitted and negative values are dashed. Pinks (greens) indicate the statistical significance at the 90% levels with two-side Student’s t-test for SST (geopotential height) anomalies.
