# Copyright 2005-2017 ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
# 
# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
#

# GRIB-530: This template is to be used by template.4.44.def ONLY


label "Parameter information";

#  Parameter category
codetable[1] parameterCategory ('4.1.[discipline:l].table',masterDir,localDir) : dump;

#  Parameter number
codetable[1] parameterNumber ('4.2.[discipline:l].[parameterCategory:l].table',masterDir,localDir) : dump;
meta parameterUnits codetable_units(parameterNumber) : dump;
meta parameterName  codetable_title(parameterNumber) : dump;

# Atmospheric chemical or physical constitutent type
codetable[2] aerosolType ('4.233.table',masterDir,localDir) : dump;

codetable[1] typeOfSizeInterval ('4.91.table',masterDir,localDir) : dump;
alias typeOfIntervalForFirstAndSecondSize=typeOfSizeInterval;

signed[1] scaleFactorOfFirstSize : dump;
signed[4] scaledValueOfFirstSize :dump;
signed[1] scaleFactorOfSecondSize = missing() : can_be_missing,dump;
signed[4] scaledValueOfSecondSize = missing() : can_be_missing,dump;

#  Type of generating process
codetable[1] typeOfGeneratingProcess ('4.3.table',masterDir,localDir) : dump;

#  Background generating process identifier
# (defined by originating centre)
unsigned[1] backgroundProcess = 255 : edition_specific;
alias backgroundGeneratingProcessIdentifier=backgroundProcess;


#  Analysis or forecast generating processes identifier
# (defined by originating centre)
unsigned[1] generatingProcessIdentifier  : dump;

#  Hours of observational data cut-off after reference time
# NOTE 1 NOT FOUND
unsigned[2] hoursAfterDataCutoff = missing() : edition_specific,can_be_missing;
alias hoursAfterReferenceTimeOfDataCutoff=hoursAfterDataCutoff;

#  Minutes of observational data cut-off after reference time
unsigned[1]  minutesAfterDataCutoff = missing() : edition_specific,can_be_missing;
alias minutesAfterReferenceTimeOfDataCutoff=minutesAfterDataCutoff;

#  Indicator of unit of time range
codetable[1] indicatorOfUnitOfTimeRange ('4.4.table',masterDir,localDir)  : dump;
codetable[1] stepUnits 'stepUnits.table' = 1 : transient,dump,no_copy;

#  Forecast time in units defined by octet 18
#  See GRIB-530: We have to make a special case for the error in WMO spec
if ( new() || (section4Length - 4*NV == 45) )
{
   # Use the WMO standard 2 octets for the following cases:
   #   Newly created messages
   #   Existing gribs which have 45 bytes before the pv array
   # The 45 bytes = length of product def template 4.44
   unsigned[2] forecastTime  : dump;
}
else
{
   # This is for existing gribs which were written with 4 octets (GRIB-29: supports negative forecast time)
   signed[4] forecastTime  : dump;
}

