RETRIEVE,
            CLASS      = OD,
            TYPE       = FC,
            STREAM     = OPER,
            EXPVER     = 0001,
            REPRES     = GG,
            LEVTYPE    = SFC,
            PARAM      = 33,
            DATE       = 20231221,
            TIME       = 0000,
            STEP       = 0,
            DOMAIN     = G,
            TARGET     = reference.zcbyW7.data,
            RESOL      = AUTO,
            GRID       = .125/.125,
            PADDING    = 0,
            USE        = INFREQUENT 