/* version 3.4 of grib headers w. ebisuzaki */ /* this version is incomplete */ /* add center DWD Helmut P. Frank */ /* 10/02 add center CPTEC */ /* 29/04/2005 add center CHM Luiz Claudio M. Fonseca*/ #ifndef INT2 #define INT2(a,b) ((1-(int) ((unsigned) (a & 0x80) >> 6)) * (int) (((a & 0x7f) << 8) + b)) #endif #ifndef UINT4 #define UINT4(a,b,c,d) ((int) ((a << 24) + (b << 16) + (c << 8) + (d))) #endif #ifndef UINT2 #define UINT2(a,b) ((int) ((a << 8) + (b))) #endif #define __LEN24(pds) ((pds) == NULL ? 0 : (int) ((pds[0]<<16)+(pds[1]<<8)+pds[2])) #define PDS_Len1(pds) (pds[0]) #define PDS_Len2(pds) (pds[1]) #define PDS_Len3(pds) (pds[2]) #define PDS_LEN(pds) ((int) ((pds[0]<<16)+(pds[1]<<8)+pds[2])) #define PDS_Vsn(pds) (pds[3]) #define PDS_Center(pds) (pds[4]) #define PDS_Model(pds) (pds[5]) #define PDS_Grid(pds) (pds[6]) #define PDS_HAS_GDS(pds) ((pds[7] & 128) != 0) #define PDS_HAS_BMS(pds) ((pds[7] & 64) != 0) #define PDS_PARAM(pds) (pds[8]) #define PDS_L_TYPE(pds) (pds[9]) #define PDS_LEVEL1(pds) (pds[10]) #define PDS_LEVEL2(pds) (pds[11]) #define PDS_KPDS5(pds) (pds[8]) #define PDS_KPDS6(pds) (pds[9]) #define PDS_KPDS7(pds) ((int) ((pds[10]<<8) + pds[11])) /* this requires a 32-bit default integer machine */ #define PDS_Field(pds) ((pds[8]<<24)+(pds[9]<<16)+(pds[10]<<8)+pds[11]) #define PDS_Year(pds) (pds[12]) #define PDS_Month(pds) (pds[13]) #define PDS_Day(pds) (pds[14]) #define PDS_Hour(pds) (pds[15]) #define PDS_Minute(pds) (pds[16]) #define PDS_ForecastTimeUnit(pds) (pds[17]) #define PDS_P1(pds) (pds[18]) #define PDS_P2(pds) (pds[19]) #define PDS_TimeRange(pds) (pds[20]) #define PDS_NumAve(pds) ((int) ((pds[21]<<8)+pds[22])) #define PDS_NumMissing(pds) (pds[23]) #define PDS_Century(pds) (pds[24]) #define PDS_Subcenter(pds) (pds[25]) #define PDS_DecimalScale(pds) INT2(pds[26],pds[27]) /* old #define PDS_Year4(pds) (pds[12] + 100*(pds[24] - (pds[12] != 0))) */ #define PDS_Year4(pds) (pds[12] + 100*(pds[24] - 1)) /* various centers */ #define NMC 7 #define ECMWF 98 #define DWD 78 #define CMC 54 #define CPTEC 46 #define CHM 146 /* ECMWF Extensions */ #define PDS_EcLocalId(pds) (PDS_LEN(pds) >= 41 ? (pds[40]) : 0) #define PDS_EcClass(pds) (PDS_LEN(pds) >= 42 ? (pds[41]) : 0) #define PDS_EcType(pds) (PDS_LEN(pds) >= 43 ? (pds[42]) : 0) #define PDS_EcStream(pds) (PDS_LEN(pds) >= 45 ? (INT2(pds[43], pds[44])) : 0) #define PDS_EcENS(pds) (PDS_LEN(pds) >= 52 && pds[40] == 1 && \ pds[43] * 256 + pds[44] == 1035 && pds[50] != 0) #define PDS_EcFcstNo(pds) (pds[50]) #define PDS_EcNoFcst(pds) (pds[51]) #define PDS_Ec16Version(pds) (pds + 45) #define PDS_Ec16Number(pds) (PDS_EcLocalId(pds) == 16 ? UINT2(pds[49],pds[50]) : 0) #define PDS_Ec16SysNum(pds) (PDS_EcLocalId(pds) == 16 ? UINT2(pds[51],pds[52]) : 0) #define PDS_Ec16MethodNum(pds) (PDS_EcLocalId(pds) == 16 ? UINT2(pds[53],pds[54]) : 0) #define PDS_Ec16VerfMon(pds) (PDS_EcLocalId(pds) == 16 ? UINT4(pds[55],pds[56],pds[57],pds[58]) : 0) #define PDS_Ec16AvePeriod(pds) (PDS_EcLocalId(pds) == 16 ? pds[59] : 0) #define PDS_Ec16FcstMon(pds) (PDS_EcLocalId(pds) == 16 ? UINT2(pds[60],pds[61]) : 0) /* NCEP Extensions */ #define PDS_NcepENS(pds) (PDS_LEN(pds) >= 44 && pds[25] == 2 && pds[40] == 1) #define PDS_NcepFcstType(pds) (pds[41]) #define PDS_NcepFcstNo(pds) (pds[42]) #define PDS_NcepFcstProd(pds) (pds[43]) /* time units */ #define MINUTE 0 #define HOUR 1 #define DAY 2 #define MONTH 3 #define YEAR 4 #define DECADE 5 #define NORMAL 6 #define CENTURY 7 #define HOURS3 10 #define HOURS6 11 #define HOURS12 12 #define MINUTES15 13 #define MINUTES30 14 #define SECOND 254