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Program "ggrids"
Generate grid data of magnetic field and observation altitude from DPAM line data or equivalent, by the method developed by Smith and Wessel [1990].
Working Dir.
LOG Filename
Input data File-type
1: DPAM
2: DB-gsj
3: DB-nedo
4: StdLIN
0: Generic
Ref.
/
Ref.J
Line/random Input data
Geodetic reference
1: WGS
2: Tokyo
Alt.ref.
1: above Ellipsoid
2: above Geoid
0: NGA
GSI2008
GSI2011
Geoid
(Data spec. if Generic type)
Lat./Long. unit
1: Min.
2: Deg.
3: D:Min.
Lat./Long. data positions
Alt./Mag. data positions
Trimming radius
(km)
Name-label for new file
(areaname)
Projection number
(+800 for Old-TOKYO)
(Origin Lat. unless UTM)
(in deg. and min.)
(Origin Long. unless UTM)
(in deg. and min.)
Alt.ref.
1: above Ellipsoid
2: above Geoid
0: NGA
GSI2008
GSI2011
Geoid
Grid Location Parameters
/
SW corner Northing / Easting (km)
/
Mesh size (m) in NS / EW
/
Number of mesh to N / E [count both end]
Output Filename
(new)