# 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.
#

# TEMPLATE 3.31, Albers equal area
include "grib2/template.3.shape_of_the_earth.def";

#  Nx - number of points along the X-axis
unsigned[4] Nx  : dump;
alias numberOfPointsAlongTheXAxis=Nx;
alias geography.Nx=Nx;

#  Ny - number of points along the Y-axis
unsigned[4] Ny  : dump;
alias numberOfPointsAlongTheYAxis=Ny;
alias geography.Ny=Ny;

#  La1 - latitude of first grid point
signed[4] latitudeOfFirstGridPoint : edition_specific,dump;
alias La1  = latitudeOfFirstGridPoint;

#  Lo1 - longitude of first grid point
unsigned[4] longitudeOfFirstGridPoint : edition_specific,dump;
alias Lo1  = longitudeOfFirstGridPoint;

include "grib2/template.3.resolution_flags.def";

#  LaD - Latitude where Dx and Dy are specified
signed[4] LaD  : dump;
alias latitudeWhereDxAndDyAreSpecified=LaD ;

#  LoV - Longitude of meridian parallel to Y-axis along which latitude increases as the Y-coordinate increases
unsigned[4] LoV  : dump;

#  Dx - X-direction grid length
# NOTE 1 NOT FOUND
unsigned[4] xDirectionGridLength  : dump;
alias Dx  = xDirectionGridLength;

#  Dy - Y-direction grid length
# NOTE 1 NOT FOUND
unsigned[4] yDirectionGridLength  : dump;
alias Dy =  yDirectionGridLength;

#  Projection centre flag
flags[1] projectionCentreFlag 'grib2/tables/[tablesVersion]/3.5.table' : dump;
include "grib2/template.3.scanning_mode.def";

#  Latin 1 - first latitude from the pole at which the secant cone cuts the sphere
signed[4] Latin1 :edition_specific;
meta  geography.Latin1InDegrees scale(Latin1,one,grib2divider,truncateDegrees) : dump;

#  Latin 2 - second latitude from the pole at which the secant cone cuts the sphere
unsigned[4] Latin2  : edition_specific;
meta  geography.Latin2InDegrees scale(Latin2,one,grib2divider,truncateDegrees) : dump;

#  Latitude of the southern pole of projection
signed[4] latitudeOfTheSouthernPoleOfProjection : edition_specific ;
alias latitudeOfSouthernPole=latitudeOfTheSouthernPoleOfProjection;
meta  geography.latitudeOfSouthernPoleInDegrees   scale(latitudeOfTheSouthernPoleOfProjection          ,one,grib2divider,truncateDegrees) : dump;


#  Longitude of the southern pole of projection
unsigned[4] longitudeOfTheSouthernPoleOfProjection :edition_specific;
alias longitudeOfSouthernPole=longitudeOfTheSouthernPoleOfProjection;
meta  geography.longitudeOfSouthernPoleInDegrees   scale(longitudeOfTheSouthernPoleOfProjection,oneConstant,grib2divider,truncateDegrees) : dump;

