Numerical experiments for IOBM

The data named "1-GRL-CAM-EXP1-40yr.nc" and "1-GRL-CAM-EXP2-40yr.nc" are the output of last 40 model years for EXP1 and EXP2, respectively, which are run for totally 60 model years. The data named "1-GRL-CAM-CRTL-40yr.nc" is the corresponding 40-yr data of CTRL run, which is used to compute the differences beween EXP1/EXP2 and CTRL. The data named "2-GRL-CAM-EXP3-30yr.nc" and "2-GRL-CAM-EXP4-30yr.nc" are the output of last 30 model years for EXP3 and EXP4, respectively, which are run for totally 45 model years. The data named "2-GRL-CAM-CRTL-30yr.nc" is the corresponding 30-yr data of CTRL run, which is used to compute the differences beween EXP3/EXP4 and CTRL.