mirror of https://github.com/ecmwf/eccodes.git
133 lines
5.1 KiB
Modula-2
133 lines
5.1 KiB
Modula-2
# (C) Copyright 2005- ECMWF.
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position offsetSection1;
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section_length[4] section1Length ;
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meta section1Pointer section_pointer(offsetSection1,section1Length,1);
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unsigned[1] numberOfSection = 1 :read_only;
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codetable[2] centre 'common/c-11.table' : dump,string_type;
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alias identificationOfOriginatingGeneratingCentre=centre;
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meta centreDescription codetable_title(centre);
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alias parameter.centre=centre;
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alias ls.centre=centre;
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alias originatingCentre=centre;
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unsigned[2] subCentre : dump;
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_if (subCentre==98 ) {
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alias centreForLocal=subCentre;
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} else {
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alias centreForLocal=centre;
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}
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codetable[1] tablesVersion 'grib2/tables/1.0.table' = tablesVersionLatestOfficial : edition_specific;
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alias gribMasterTablesVersionNumber=tablesVersion;
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transient masterDir="grib2/tables/[tablesVersion]";
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if (tablesVersion > tablesVersionLatest) {
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transient masterDir="grib2/tables/[tablesVersionLatest]";
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}
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when (tablesVersion!=255) {
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set masterDir="grib2/tables/[tablesVersion]";
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} else {
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set masterDir="grib2/tables/4";
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}
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codetable[1] localTablesVersion 'grib2/tables/local/[centreForLocal]/1.1.table' ;
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alias versionNumberOfGribLocalTables=localTablesVersion;
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transient localDir="";
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if (localTablesVersion != 0 and localTablesVersion != 255) {
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transient localDir="grib2/tables/local/[centre]/[localTablesVersion]";
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}
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# Significance of Reference Time
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codetable[1] significanceOfReferenceTime ('1.2.table',masterDir,localDir) = 1 : dump;
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# Year (4 digits)
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unsigned[2] year;
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unsigned[1] month;
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unsigned[1] day;
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unsigned[1] hour;
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unsigned[1] minute;
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unsigned[1] second;
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meta dataDate g2date(year,month,day) : dump;
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alias mars.date = dataDate;
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alias ls.date = dataDate;
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meta julianDay julian_day(dataDate,hour,minute,second) : edition_specific;
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meta dataTime time(hour,minute,second) : dump;
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alias mars.time = dataTime;
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# Production status of processed data in this GRIB message
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codetable[1] productionStatusOfProcessedData ('1.3.table',masterDir,localDir) : dump;
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# Type of processed data in this GRIB message
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codetable[1] typeOfProcessedData ('1.4.table',masterDir,localDir) = 255 : dump,string_type,no_fail;
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alias ls.dataType=typeOfProcessedData;
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meta md5Section1 md5(offsetSection1,section1Length);
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meta selectStepTemplateInterval select_step_template(productDefinitionTemplateNumber,0); # 0 -> not instant
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meta selectStepTemplateInstant select_step_template(productDefinitionTemplateNumber,1); # 1 -> instant
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transient stepTypeInternal="instant" : hidden,no_copy;
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concept stepType {
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"instant" = {selectStepTemplateInstant=1; stepTypeInternal="instant";}
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"avg" = {selectStepTemplateInterval=1; stepTypeInternal="avg";}
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"avgd" = {selectStepTemplateInterval=1; stepTypeInternal="avgd";}
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"accum" = {selectStepTemplateInterval=1; stepTypeInternal="accum";}
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"max" = {selectStepTemplateInterval=1; stepTypeInternal="max";}
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"min" = {selectStepTemplateInterval=1; stepTypeInternal="min";}
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"diff" = {selectStepTemplateInterval=1; stepTypeInternal="diff";}
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"sdiff" = {selectStepTemplateInterval=1; stepTypeInternal="sdiff";}
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"rms" = {selectStepTemplateInterval=1; stepTypeInternal="rms";}
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"sd" = {selectStepTemplateInterval=1; stepTypeInternal="sd";}
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"cov" = {selectStepTemplateInterval=1; stepTypeInternal="cov";}
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"ratio" = {selectStepTemplateInterval=1; stepTypeInternal="ratio";}
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"stdanom" = {selectStepTemplateInterval=1; stepTypeInternal="stdanom";}
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"sum" = {selectStepTemplateInterval=1; stepTypeInternal="sum";}
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"severity" = {selectStepTemplateInterval=1; stepTypeInternal="severity";}
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"mode" = {selectStepTemplateInterval=1; stepTypeInternal="mode";}
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}
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# 0=atmospheric chemical constituents
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# 1=atmospheric chemical constituents based on a distribution function
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# 2=atmospheric chemical constituents with source or sink
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meta is_chemical g2_chemical(productDefinitionTemplateNumber, stepType, 0);
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meta is_chemical_distfn g2_chemical(productDefinitionTemplateNumber, stepType, 1);
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meta is_chemical_srcsink g2_chemical(productDefinitionTemplateNumber, stepType, 2);
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# 0=aerosol
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# 1=optical properties of aerosol
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meta is_aerosol g2_aerosol(productDefinitionTemplateNumber, stepType, 0);
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meta is_aerosol_optical g2_aerosol(productDefinitionTemplateNumber, stepType, 1);
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transient setCalendarId = 0 ;
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transient deleteCalendarId = 0 ;
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alias calendarIdPresent = false;
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if ( ((section1Length > 21) or setCalendarId > 0) and deleteCalendarId == 0) {
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alias calendarIdPresent = present;
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codetable[2] calendarIdentificationTemplateNumber ('1.5.table',masterDir,localDir) : dump,string_type,no_fail;
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template calendarIdentification "grib2/template.1.[calendarIdentificationTemplateNumber:l].def";
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}
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constant conceptsMasterDir="grib2" : hidden;
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constant conceptsLocalDirAll="grib2/localConcepts/[centre:s]" : hidden;
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constant conceptsLocalDirECMF="grib2/localConcepts/ecmf" : hidden;
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# ECC-806: Local concepts precedence order
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if (preferLocalConcepts) {
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constant conceptsDir1 = conceptsMasterDir : hidden;
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constant conceptsDir2 = conceptsLocalDirAll : hidden;
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} else {
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constant conceptsDir1 = conceptsLocalDirAll : hidden;
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constant conceptsDir2 = conceptsMasterDir : hidden;
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}
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