Mean State

Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.47
CESM2 [-] 1.37 1.35 2.66 1.41 3.20 0.0127 0.938 0.784 0.868 0.585 0.915 0.986 0.848 0.798
ELM_CN [-] 1.36 1.36 1.37 2.53 0.00891 0.920 0.778 0.874 0.583 0.920 0.984 0.837 0.797
ELM_CNP [-] 1.36 1.36 1.37 2.53 0.00891 0.920 0.778 0.874 0.583 0.920 0.984 0.837 0.797
IPSL-CM6A-LR [-] 1.31 1.29 2.59 1.42 2.69 -0.000966 0.979 0.785 0.865 0.575 0.920 0.988 0.846 0.795
MIROC6 [-] 1.43 1.37 2.56 1.44 4.33 0.0217 0.953 0.737 0.866 0.588 0.925 0.976 0.848 0.798
MPI-ESM1-2-LR [-] 1.33 1.31 2.11 1.32 2.66 -0.00782 0.766 0.734 0.883 0.630 0.920 0.989 0.890 0.824
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.19
CESM2 [-] 1.36 1.36 1.53 1.20 1.33 0.173 0.510 0.641 0.769 0.540 0.929 0.947 0.752 0.746
ELM_CN [-] 1.36 1.36 1.19 1.23 0.170 0.508 0.639 0.773 0.537 0.928 0.944 0.737 0.743
ELM_CNP [-] 1.36 1.36 1.19 1.23 0.170 0.508 0.639 0.773 0.537 0.928 0.944 0.737 0.743
IPSL-CM6A-LR [-] 1.36 1.36 1.60 1.20 1.07 0.175 0.519 0.637 0.770 0.531 0.930 0.944 0.753 0.743
MIROC6 [-] 1.38 1.37 1.76 1.21 1.39 0.173 0.517 0.644 0.769 0.537 0.928 0.947 0.752 0.745
MPI-ESM1-2-LR [-] 1.37 1.36 1.60 1.19 1.20 0.174 0.468 0.592 0.774 0.569 0.936 0.958 0.795 0.767
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.27
CESM2 [-] 1.44 1.45 1.05 1.27 1.51 0.209 0.817 0.604 0.686 0.458 0.919 0.862 0.712 0.682
ELM_CN [-] 1.47 1.48 0.525 1.29 1.18 0.195 0.822 0.599 0.688 0.455 0.914 0.852 0.705 0.678
ELM_CNP [-] 1.47 1.48 0.525 1.29 1.18 0.195 0.822 0.599 0.688 0.455 0.914 0.852 0.705 0.678
IPSL-CM6A-LR [-] 1.44 1.44 1.48 1.27 1.30 0.220 0.829 0.587 0.676 0.452 0.923 0.870 0.713 0.681
MIROC6 [-] 1.51 1.52 1.75 1.28 1.09 0.236 0.843 0.633 0.674 0.452 0.911 0.846 0.705 0.673
MPI-ESM1-2-LR [-] 1.48 1.50 1.52 1.30 1.11 0.202 0.741 0.504 0.710 0.493 0.935 0.922 0.764 0.720
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 2.50
CESM2 [-] 3.02 2.96 3.68 2.47 3.11 0.612 1.91 0.942 0.729 0.487 0.856 0.834 0.789 0.697
ELM_CN [-] 3.00 3.00 2.42 2.91 0.607 1.85 0.921 0.733 0.485 0.862 0.839 0.777 0.697
ELM_CNP [-] 3.00 3.00 2.42 2.91 0.607 1.85 0.921 0.733 0.485 0.862 0.839 0.777 0.697
IPSL-CM6A-LR [-] 2.87 2.79 3.51 2.48 3.49 0.491 1.86 0.865 0.751 0.481 0.870 0.910 0.809 0.717
MIROC6 [-] 2.93 2.90 3.48 2.48 3.52 0.568 1.83 0.976 0.735 0.490 0.843 0.853 0.804 0.703
MPI-ESM1-2-LR [-] 3.07 2.94 3.76 2.36 2.83 0.582 1.53 0.851 0.749 0.556 0.885 0.872 0.875 0.749
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.18
CESM2 [-] 1.14 1.14 1.09 1.16 3.45 0.0246 0.710 0.866 0.773 0.543 0.867 0.964 0.768 0.743
ELM_CN [-] 1.15 1.15 0.404 1.13 2.50 0.0276 0.698 0.868 0.773 0.540 0.864 0.956 0.750 0.737
ELM_CNP [-] 1.15 1.15 0.404 1.13 2.50 0.0276 0.698 0.868 0.773 0.540 0.864 0.956 0.750 0.737
IPSL-CM6A-LR [-] 1.15 1.12 2.19 1.16 2.79 0.0162 0.722 0.882 0.772 0.533 0.863 0.968 0.772 0.740
MIROC6 [-] 1.15 1.14 1.55 1.17 3.10 0.0238 0.706 0.876 0.773 0.545 0.866 0.966 0.772 0.745
MPI-ESM1-2-LR [-] 1.14 1.13 2.18 1.11 2.64 0.0183 0.609 0.804 0.786 0.586 0.876 0.971 0.822 0.771
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 6.76
CESM2 [-] 7.82 7.92 6.48 6.78 6.60 0.645 3.56 1.44 0.720 0.419 0.785 0.773 0.824 0.657
ELM_CN [-] 7.84 7.84 6.91 6.57 0.881 3.59 1.53 0.714 0.410 0.775 0.775 0.815 0.650
ELM_CNP [-] 7.84 7.84 6.91 6.57 0.881 3.59 1.53 0.714 0.410 0.775 0.775 0.815 0.650
IPSL-CM6A-LR [-] 7.53 7.77 6.28 6.71 7.16 0.391 3.58 1.61 0.711 0.412 0.766 0.782 0.816 0.650
MIROC6 [-] 7.48 7.67 6.06 6.74 6.85 0.462 3.55 1.45 0.717 0.421 0.791 0.745 0.819 0.652
MPI-ESM1-2-LR [-] 7.79 7.90 6.15 7.28 6.43 0.580 2.94 1.13 0.761 0.478 0.847 0.831 0.865 0.710
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.91
CESM2 [-] 2.24 2.27 2.09 1.91 1.82 0.351 0.917 0.990 0.718 0.517 0.835 0.778 0.748 0.686
ELM_CN [-] 2.30 2.30 1.92 1.84 0.381 0.925 0.924 0.706 0.510 0.843 0.746 0.725 0.673
ELM_CNP [-] 2.30 2.30 1.92 1.84 0.381 0.925 0.924 0.706 0.510 0.843 0.746 0.725 0.673
IPSL-CM6A-LR [-] 2.22 2.25 2.20 1.92 1.79 0.335 0.939 1.08 0.714 0.506 0.825 0.828 0.759 0.690
MIROC6 [-] 2.22 2.23 1.92 1.91 1.68 0.316 0.891 0.918 0.728 0.523 0.846 0.784 0.760 0.694
MPI-ESM1-2-LR [-] 2.25 2.26 2.29 1.92 1.86 0.338 0.757 0.900 0.730 0.576 0.836 0.836 0.811 0.727
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 2.12
CESM2 [-] 2.08 2.22 0.950 2.10 3.37 0.203 1.21 0.844 0.778 0.518 0.886 0.954 0.782 0.739
ELM_CN [-] 2.25 2.26 1.54 2.06 2.93 0.206 1.20 0.824 0.783 0.516 0.891 0.949 0.765 0.737
ELM_CNP [-] 2.25 2.26 1.54 2.06 2.93 0.206 1.20 0.824 0.783 0.516 0.891 0.949 0.765 0.737
IPSL-CM6A-LR [-] 2.22 2.21 2.91 2.11 2.58 0.195 1.26 0.866 0.771 0.506 0.882 0.955 0.786 0.734
MIROC6 [-] 2.12 2.25 1.09 2.11 3.27 0.202 1.22 0.837 0.776 0.518 0.887 0.953 0.784 0.740
MPI-ESM1-2-LR [-] 2.14 2.20 0.969 2.03 3.02 0.174 1.00 0.761 0.802 0.570 0.907 0.974 0.841 0.777
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 0.464
CESM2 [-] 0.409 0.416 0.827 0.447 1.15 0.00489 0.454 1.44 0.754 0.472 0.812 0.936 0.743 0.698
ELM_CN [-] 0.424 0.424 0.428 0.955 0.00335 0.447 1.46 0.752 0.467 0.808 0.936 0.738 0.695
ELM_CNP [-] 0.424 0.424 0.428 0.955 0.00335 0.447 1.46 0.752 0.467 0.808 0.936 0.738 0.695
IPSL-CM6A-LR [-] 0.361 0.394 0.880 0.446 1.15 0.00128 0.459 1.45 0.751 0.468 0.810 0.945 0.750 0.699
MIROC6 [-] 0.398 0.405 0.579 0.449 1.29 -0.00350 0.446 1.42 0.755 0.482 0.828 0.947 0.758 0.709
MPI-ESM1-2-LR [-] 0.422 0.398 0.982 0.405 0.959 -0.00521 0.374 1.47 0.776 0.516 0.811 0.964 0.791 0.729
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 2.04
CESM2 [-] 2.18 2.07 2.64 2.03 2.79 0.0683 1.20 0.529 0.841 0.560 0.895 0.986 0.802 0.774
ELM_CN [-] 2.07 2.07 0.811 2.01 2.93 0.0606 1.18 0.501 0.847 0.558 0.899 0.987 0.786 0.773
ELM_CNP [-] 2.07 2.07 0.811 2.01 2.93 0.0606 1.18 0.501 0.847 0.558 0.899 0.987 0.786 0.773
IPSL-CM6A-LR [-] 2.14 2.06 3.22 2.03 4.42 0.0630 1.26 0.540 0.823 0.546 0.894 0.982 0.804 0.766
MIROC6 [-] 2.16 2.05 1.55 2.04 2.91 0.0735 1.21 0.535 0.836 0.557 0.894 0.984 0.803 0.772
MPI-ESM1-2-LR [-] 2.07 2.05 3.98 2.00 2.84 0.0390 1.05 0.464 0.849 0.600 0.905 0.989 0.862 0.801
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 5.36
CESM2 [-] 6.30 6.25 6.42 5.43 3.23 0.937 2.91 0.889 0.722 0.475 0.879 0.881 0.772 0.701
ELM_CN [-] 6.43 6.43 5.50 4.08 0.934 2.97 0.740 0.726 0.473 0.907 0.855 0.752 0.698
ELM_CNP [-] 6.43 6.43 5.50 4.08 0.934 2.97 0.740 0.726 0.473 0.907 0.855 0.752 0.698
IPSL-CM6A-LR [-] 6.45 6.44 8.20 5.44 2.90 0.971 3.02 0.943 0.708 0.467 0.868 0.872 0.791 0.695
MIROC6 [-] 6.43 6.39 6.95 5.40 3.33 0.930 2.95 0.905 0.714 0.473 0.885 0.892 0.768 0.701
MPI-ESM1-2-LR [-] 6.38 6.35 5.95 5.51 4.38 0.808 2.45 0.736 0.750 0.527 0.905 0.985 0.834 0.755
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 3.62
CESM2 [-] 3.81 3.80 4.63 3.53 6.00 0.389 2.56 0.513 0.797 0.544 0.937 0.878 0.763 0.744
ELM_CN [-] 3.81 3.81 3.40 5.42 0.428 2.50 0.491 0.804 0.544 0.943 0.843 0.748 0.738
ELM_CNP [-] 3.81 3.81 3.40 5.42 0.428 2.50 0.491 0.804 0.544 0.943 0.843 0.748 0.738
IPSL-CM6A-LR [-] 3.93 3.75 5.53 3.55 6.07 0.383 2.70 0.586 0.789 0.521 0.921 0.879 0.762 0.732
MIROC6 [-] 3.79 3.79 4.59 3.52 6.49 0.377 2.54 0.540 0.794 0.544 0.931 0.886 0.767 0.745
MPI-ESM1-2-LR [-] 3.89 3.78 5.09 3.42 5.17 0.338 2.04 0.446 0.831 0.602 0.949 0.950 0.825 0.793
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 2.51
CESM2 [-] 2.50 2.53 1.81 2.51 2.51 -0.00137 1.46 0.715 0.841 0.532 0.895 0.989 0.821 0.768
ELM_CN [-] 2.52 2.52 2.52 2.26 0.00160 1.48 0.702 0.844 0.528 0.896 0.989 0.806 0.765
ELM_CNP [-] 2.52 2.52 2.52 2.26 0.00160 1.48 0.702 0.844 0.528 0.896 0.989 0.806 0.765
IPSL-CM6A-LR [-] 2.53 2.55 1.74 2.51 2.35 -0.00126 1.51 0.739 0.833 0.524 0.893 0.988 0.824 0.764
MIROC6 [-] 2.49 2.53 1.96 2.51 1.92 -0.000787 1.46 0.676 0.839 0.535 0.905 0.988 0.823 0.771
MPI-ESM1-2-LR [-] 2.50 2.53 2.25 2.53 2.24 0.00120 1.29 0.635 0.852 0.570 0.907 0.986 0.880 0.794
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 3.65
CESM2 [-] 3.96 4.01 2.45 3.67 1.95 0.297 1.76 0.648 0.819 0.544 0.932 0.960 0.791 0.765
ELM_CN [-] 4.01 4.01 1.48 3.70 2.45 0.306 1.79 0.634 0.825 0.538 0.934 0.955 0.774 0.761
ELM_CNP [-] 4.01 4.01 1.48 3.70 2.45 0.306 1.79 0.634 0.825 0.538 0.934 0.955 0.774 0.761
IPSL-CM6A-LR [-] 4.04 4.08 2.33 3.66 2.40 0.326 1.88 0.702 0.812 0.529 0.933 0.956 0.791 0.758
MIROC6 [-] 3.95 4.02 2.58 3.66 1.89 0.326 1.77 0.636 0.819 0.544 0.934 0.949 0.795 0.764
MPI-ESM1-2-LR [-] 3.97 4.02 2.94 3.72 2.38 0.298 1.53 0.603 0.836 0.590 0.941 0.975 0.864 0.799
Download Data
Period Mean (original grids) [mm d-1]
Model Period Mean (intersection) [mm d-1]
Model Period Mean (complement) [mm d-1]
Benchmark Period Mean (intersection) [mm d-1]
Benchmark Period Mean (complement) [mm d-1]
Bias [mm d-1]
RMSE [mm d-1]
Phase Shift [months]
Bias Score [1]
RMSE Score [1]
Seasonal Cycle Score [1]
Spatial Distribution Score [1]
Interannual Variability Score [1]
Overall Score [1]
Benchmark [-] 1.89
CESM2 [-] 2.19 2.19 2.30 1.89 2.25 0.322 0.893 0.974 0.755 0.519 0.853 0.961 0.766 0.729
ELM_CN [-] 2.19 2.19 1.87 2.33 0.321 0.903 0.962 0.754 0.510 0.854 0.959 0.743 0.722
ELM_CNP [-] 2.19 2.19 1.87 2.33 0.321 0.903 0.962 0.754 0.510 0.854 0.959 0.743 0.722
IPSL-CM6A-LR [-] 2.17 2.15 2.58 1.89 2.19 0.298 0.902 1.04 0.762 0.509 0.840 0.974 0.778 0.729
MIROC6 [-] 2.20 2.20 2.63 1.89 1.88 0.321 0.886 0.979 0.758 0.521 0.841 0.967 0.770 0.730
MPI-ESM1-2-LR [-] 2.20 2.20 2.84 1.88 2.16 0.318 0.771 0.897 0.760 0.571 0.872 0.978 0.834 0.765

Temporally integrated period mean

BENCHMARK MEAN
Data not available
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MODEL MEAN
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BIAS
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BIAS SCORE
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RMSE
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RMSE SCORE
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BENCHMARK INTERANNUAL VARIABILITY
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MODEL INTERANNUAL VARIABILITY
Data not available
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INTERANNUAL VARIABILITY SCORE
Data not available
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BENCHMARK MAX MONTH
Data not available
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MODEL MAX MONTH
Data not available
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DIFFERENCE IN MAX MONTH
Data not available
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SEASONAL CYCLE SCORE
Data not available
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SPATIAL TAYLOR DIAGRAM
Data not available
MODEL COLORS
Data not available

Spatially integrated regional mean

MODEL COLORS
Data not available
REGIONAL MEAN
Data not available
ANNUAL CYCLE
Data not available
MONTHLY ANOMALY
Data not available
ANNUAL CYCLE
Data not available

All Models

Benchmark
Data not available
Data not available
CESM2
Data not available
Data not available
ELM_CN
Data not available
Data not available
ELM_CNP
Data not available
Data not available
IPSL-CM6A-LR
Data not available
Data not available
MIROC6
Data not available
Data not available
MPI-ESM1-2-LR
Data not available
Data not available

Data Information

  Title:
derived CMAP precipitation

  Source_file:
This product is generated from monthly CPC Merged Analysis of Precipitation Standard observations

  Conventions:
Please contact Prof. James Randerson (Email: jranders@uci.edu) or Dr. Mingquan Mu (mmu@uci.edu) for any question

  Creation_date:
Fri Mar 4 10:41:55 PST 2016

  Approach:
I read the monthly global precipitation data from original file, and interpolated from the original resolution in 2.5x2.5 degree to the final one in 0.5x0.5 degree. Meanwhile I also converted the unit from mm/day to Kg m-2 s-1. The final data were saved by each month and each year.

  Temporal resolution:
monthly

  General information:
This product was derived from CPC Merged Analysis of Precipitation (CMAP) excluding NCEP Reanalysis Data Set.

  Spatial resolution:
0.5x0.5 degree

  Derived data code:
http://redwood.ess.uci.edu/mingquan/www/ILAMB/Download/CODES/CODES/subroutines/convert/convert-pr-cmap.ncl