Dataset {
    Float32 T[T = 218];
    Float32 boxnum[boxnum = 1];
    Grid {
     ARRAY:
        Float32 ice[T = 218][boxnum = 1];
     MAPS:
        Float32 T[T = 218];
        Float32 boxnum[boxnum = 1];
    } ice;
    Grid {
     ARRAY:
        Float32 lat[boxnum = 1];
     MAPS:
        Float32 boxnum[boxnum = 1];
    } lat;
    Grid {
     ARRAY:
        Float32 lon[boxnum = 1];
     MAPS:
        Float32 boxnum[boxnum = 1];
    } lon;
} surface;