Section 3 - Template 1000 : Cross-section grid, with points equally spaced on the horizontal Preliminary Note: This template is simply experimental, was not validated at the time of publication and should be used only for bi-lateral previously agreed tests.

Templates for Section 3

More Sections

Octets	Key	Type	Content
15	shapeOfTheEarth	codetable	Shape of the earth (see Code Table 3.2)
16	scaleFactorOfRadiusOfSphericalEarth	unsigned	Scale factor of radius of spherical earth
17-20	scaledValueOfRadiusOfSphericalEarth	unsigned	Scaled value of radius of spherical earth
21	scaleFactorOfMajorAxisOfOblateSpheroidEarth	unsigned	Scale factor of major axis of oblate spheroid earth
22-25	scaledValueOfMajorAxisOfOblateSpheroidEarth	unsigned	Scaled value of major axis of oblate spheroid earth
26	scaleFactorOfMinorAxisOfOblateSpheroidEarth	unsigned	Scale factor of minor axis of oblate spheroid earth
27-30	scaledValueOfMinorAxisOfOblateSpheroidEarth	unsigned	Scaled value of minor axis of oblate spheroid earth
31-34	numberOfHorizontalPoints	unsigned	Number of horizontal points
35-38	basicAngleOfTheInitialProductionDomain	unsigned	Basic angle of the initial production domain (see Note 1)
39-42	subdivisionsOfBasicAngle	unsigned	Subdivisions of basic angle used to define extreme longitudes and latitudes (see Note 1)
43-46	latitudeOfFirstGridPoint	signed	La1 - latitude of first grid point (see Note 1)
47-50	longitudeOfFirstGridPoint	unsigned	Lo1 - longitude of first grid point (see Note 1)
51	scanningMode	codeflag	Scanning mode (flags - see Flag Table 3.4)
52-55	latitudeOfLastGridPoint	signed	La2 - latitude of last grid point (see Note 1)
56-59	longitudeOfLastGridPoint	unsigned	Lo2 - longitude of last grid point (see Note 1)
60	typeOfHorizontalLine	codetable	Type of horizontal line (see Code Table 3.20)
61-62	numberOfVerticalPoints	unsigned	Number of vertical points
63	physicalMeaningOfVerticalCoordinate	codetable	Physical meaning of vertical coordinate (see Code Table 3.15)
64	verticalDimensionCoordinateValuesDefinition	codetable	Vertical dimension coordinate values definition (see Code Table 3.21)
65-66	NC	unsigned	NC - Number of coefficients or values used to specify vertical coordinates
67-(66+NC*4)			Coefficients to define vertical dimension coordinate values in functional form, or the explicit coordinate values (IEEE 32-bit floating-point values)

Notes:

( 1) Basic angle of the initial production domain and subdivisions of this basic angle are provided to manage cases where the recommended unit of 10^-6 degrees is not applicable to describe the extreme longitudes and latitudes. For these last descriptors, unit is equal to the ratio of the basic angle and the subdivisions number. For ordinary cases, zero and missing values should be coded, equivalent to respective values of 1 and 10⁶ (10^-6 degrees unit).

( 2) A scaled value of radius of spherical Earth, or major or minor axis of oblate spheroid Earth is derived from applying appropriate scale factor to the value expressed in metres.