NCL计算涡度平流

dh5002

;;计算涡度
    vor = uv2vrF_Wrap(u, v)
    vor = vor(:,:,::-1,:)
    printVarSummary(vor)
    ;;计算涡度平流
    gridType  = 0   ; global gaussian grid
    longName  = "advect of vor"
    units     = "s"
    opt       = 0
    advor =advect_variable(u, v, vor, gridType, longName, units, opt)
    printVarSummary(advor)

    advor_300 = advor(:,{300},:,:)
计算300hPa涡度平流，麻烦哪位大神帮忙看看，哪里不对啊