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Figure 10. Correlation error difference maps between GloFAS v4.0 and v3.1 simulations (top row) and cumulative distributions of correlation for both v4.0 and v3.1 (bottom row). Using all all points (1st column), using only calibration points for both models without larger reservoir or lake influence (2nd column) and non-calibration points for both models without larger reservoir or lake influence (3rd column).
Timing
The correltiming error shows a lot of geographical variability, especially for the full stations list, which include a larger number of shorter observation period stations and also stations with large reservoir or lake influence, which can make the timing error less robust and easy to interpret. This way, the calibration version (middle column) provides a safer version to look for patterns. Indeed, one can see that lot of cachments in Amazonia got worse in v4.0 and
Figure 11. Abstiming error difference maps between GloFAS v4.0 and v3.1 simulations (top row) and cumulative distributions of timing error for both v4.0 and v3.1 (bottom row). Using all all points (1st column), using only calibration points for both models without larger reservoir or lake influence (2nd column) and non-calibration points for both models without larger reservoir or lake influence (3rd column).