CMIP6模式变量里sigma坐标的第一层是地面还是最高空呀

janelle713

如图！

janelle713

double lev(lev) ;
                lev:long_name = "atmospheric model level" ;
                lev:units = "1.0" ;
                lev:axis = "Z" ;
                lev:positive = "down" ;
                lev:formula = "p(n,k,j,i) = ap(k) + b(k)*ps(n,j,i)" ;
                lev:bounds = "lev_bnds" ;
                lev:standard_name = "atmosphere_hybrid_sigma_pressure_coordinate" ;
                lev:description = "Generic atmospheric model vertical coordinate (nondimensional or dimensional) [use CF standard name apporpriate for model vertical coordinate, e.g. model_level_number or atmosphere_sigma_coordinate]" ;
                lev:formula_term = "ap: ap b: b ps: ps" ;

janelle713

lev = 0.99795, 0.99279, 0.98540739915, 0.9756590957, 0.9633249281,
    0.94807624475, 0.92954604845, 0.9072989285, 0.88081805335, 0.84950967285,
    0.8127897223, 0.7701018362, 0.72101394975, 0.6653174996, 0.6032088506,
    0.5358132351, 0.4658290421, 0.3972976087, 0.33404935575, 0.2781749219,
    0.22998078655, 0.1888851393, 0.15409188855, 0.1248356931, 0.10040876315,
    0.08016256785, 0.06350800645, 0.0499146627, 0.038909233, 0.0300732337,
    0.02304010415, 0.0174918294, 0.0131552082, 0.00979788985, 0.0072242975,
    0.0052715454, 0.0038054455, 0.0027166834, 0.0019172284, 0.00133702575,
    0.0009210024, 0.00062640445, 0.00042046895, 0.000278422, 0.00018159735,
    0.00011571225, 7.032955e-05, 3.93429e-05, 1.84861e-05 ;

苏拉苏拉

地面吧。。。。。