eccodes/definitions/grib2/template.3.61.def

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Modula-2

# (C) Copyright 2005- ECMWF.
# TEMPLATE 3.61, Bi-Fourier coefficients on Mercator projection
# Spectral Mercator with modelling subdomains definition
transient biFourierMakeTemplate = 0;
include "grib2/template.3.bf.def"
include "grib2/template.3.shape_of_the_earth.def";
# La1 - latitude of first grid point
signed[4] latitudeOfFirstGridPoint: edition_specific,no_copy ;
alias La1 = latitudeOfFirstGridPoint;
meta geography.latitudeOfFirstGridPointInDegrees scale(latitudeOfFirstGridPoint,oneConstant,grib2divider,truncateDegrees) : dump;
# Lo1 - longitude of first grid point
signed[4] longitudeOfFirstGridPoint : edition_specific,no_copy;
alias Lo1 = longitudeOfFirstGridPoint;
meta geography.longitudeOfFirstGridPointInDegrees scale(longitudeOfFirstGridPoint,oneConstant,grib2divider,truncateDegrees) : dump;
# LaD - Latitude(s) at which the Mercator projection intersects the Earth
# (Latitude(s) where Di and Dj are specified)
signed[4] LaD : edition_specific,no_copy;
meta geography.LaDInDegrees scale(LaD,oneConstant,grib2divider,truncateDegrees) : dump;
# La2 - latitude of last grid point
signed[4] latitudeOfLastGridPoint : edition_specific,no_copy;
alias La2 = latitudeOfLastGridPoint;
meta geography.latitudeOfLastGridPointInDegrees scale(latitudeOfLastGridPoint,oneConstant,grib2divider,truncateDegrees) : dump;
# Lo2 - longitude of last grid point
signed[4] longitudeOfLastGridPoint: edition_specific,no_copy ;
alias Lo2 = longitudeOfLastGridPoint;
meta geography.longitudeOfLastGridPointInDegrees scale(longitudeOfLastGridPoint,oneConstant,grib2divider,truncateDegrees) : dump;
# Orientation of the grid, angle between i direction on the map and the equator
# NOTE 1: Limited to the range of 0 to 90 degrees; if the angle of orientation of the grid is neither 0 nor 90 degrees,
# Di and Dj must be equal to each other
unsigned[4] orientationOfTheGrid : dump ;
meta geography.orientationOfTheGridInDegrees
scale(orientationOfTheGrid,oneConstant,grib2divider,truncateDegrees) : dump;