| 1 |
.TH rot2geo
|
1 |
.TH rot2geo
|
| 2 |
.SH NAME
|
2 |
.SH NAME
|
| 3 |
.B rot2geo - rotate from rotated to true longitude and latitude
|
3 |
.B rot2geo - rotate from rotated to true longitude and latitude
|
| 4 |
.SH SYNOPSIS
|
4 |
.SH SYNOPSIS
|
| 5 |
.TP 9
|
5 |
.TP 9
|
| 6 |
.B rot2geo
|
6 |
.B rot2geo
|
| 7 |
.I [ inpfile outfile ] [optional parameters]
|
7 |
.I [ inpfile outfile ] [optional parameters]
|
| 8 |
.TP 9
|
8 |
.TP 9
|
| 9 |
.B rot2geo
|
9 |
.B rot2geo
|
| 10 |
.I [ rlon rlat ] [optional parameters]
|
10 |
.I [ rlon rlat ] [optional parameters]
|
| 11 |
.TP 9
|
11 |
.TP 9
|
| 12 |
.B rot2geo
|
12 |
.B rot2geo
|
| 13 |
.I [optional parameters]
|
13 |
.I [optional parameters]
|
| 14 |
.SH DESCRIPTION
|
14 |
.SH DESCRIPTION
|
| 15 |
Rotate the longitude and latitude coordinates from their values in a rotated coordinate system (rlon/rlat) to their true geographical values (lon/lat). The rotation can be done either for a single <lon/lat> point or for a complete trajectory file <inpfile>. In the latter case, a new trajectory <outfile> file with true longitude and latitude is written.
|
15 |
Rotate the longitude and latitude coordinates from their values in a rotated coordinate system (rlon/rlat) to their true geographical values (lon/lat). The rotation can be done either for a single <lon/lat> point or for a complete trajectory file <inpfile>. In the latter case, a new trajectory <outfile> file with true longitude and latitude is written.
|
| 16 |
.SH PARAMETERS
|
16 |
.SH PARAMETERS
|
| 17 |
.TP 15
|
17 |
.TP 15
|
| 18 |
.I inpfile
|
18 |
.I inpfile
|
| 19 |
input trajectory file (with rotated lon/lat)
|
19 |
input trajectory file (with rotated lon/lat)
|
| 20 |
.TP 15
|
20 |
.TP 15
|
| 21 |
.I outfile
|
21 |
.I outfile
|
| 22 |
output trajectory file (with true lon/lat)
|
22 |
output trajectory file (with true lon/lat)
|
| 23 |
.TP 15
|
23 |
.TP 15
|
| 24 |
.I rlon rlat
|
24 |
.I rlon rlat
|
| 25 |
rotated longitude and latitude
|
25 |
rotated longitude and latitude
|
| 26 |
.SH OPTIONAL PARAMETERS
|
26 |
.SH OPTIONAL PARAMETERS
|
| 27 |
.TP 15
|
27 |
.TP 15
|
| 28 |
.I -lonlat pollon pollat
|
28 |
.I -lonlat pollon pollat
|
| 29 |
specify the coordinates (pollon, pollat) of the rotated north pole
|
29 |
specify the coordinates (pollon, pollat) of the rotated north pole
|
| 30 |
.TP 15
|
30 |
.TP 15
|
| 31 |
.I -file filename
|
31 |
.I -file filename
|
| 32 |
get the coordinates of the rotated north pole from the file <filename>. The file must be a netCDF file, either a constants or a P,S file.
|
32 |
get the coordinates of the rotated north pole from the file <filename>. The file must be a netCDF file, either a constants or a P,S file.
|
| 33 |
.SH EXAMPLES
|
33 |
.SH EXAMPLES
|
| 34 |
.TP 15
|
34 |
.TP 15
|
| 35 |
.B [1] rot2geo -lonlat -170 45
|
35 |
.B [1] rot2geo -lonlat -170 45
|
| 36 |
sets the rotated north pole to 170 W and 45 N. The new position is written to the file <rot2geo.pole>.
|
36 |
sets the rotated north pole to 170 W and 45 N. The new position is written to the file <rot2geo.pole>.
|
| 37 |
.TP 15
|
37 |
.TP 15
|
| 38 |
.B [2] rot2geo 45 50
|
38 |
.B [2] rot2geo 45 50
|
| 39 |
takes roated coordinate (rlon/rlat)=(45/50) and rotates it to the geographical coordinate system. The position of the rotated pole is read from the file <rot2geo.pole>.
|
39 |
takes roated coordinate (rlon/rlat)=(45/50) and rotates it to the geographical coordinate system. The position of the rotated pole is read from the file <rot2geo.pole>.
|
| 40 |
.TP 15
|
40 |
.TP 15
|
| 41 |
.B [3] rot2geo 45 50 -file eraint_cst
|
41 |
.B [3] rot2geo 45 50 -file eraint_cst
|
| 42 |
rotates (rlon/rlat) = (45/50) to the new system - the new pole position is read from the file <eraint_cst>.
|
42 |
rotates (rlon/rlat) = (45/50) to the new system - the new pole position is read from the file <eraint_cst>.
|
| 43 |
.TP 15
|
43 |
.TP 15
|
| 44 |
.B [4] rot2geo trainp traout
|
44 |
.B [4] rot2geo trainp traout
|
| 45 |
read the trajectory file <trainp> and rotate all coordinates. The trajectory file with geographical coordinates is written to <traout>.
|
45 |
read the trajectory file <trainp> and rotate all coordinates. The trajectory file with geographical coordinates is written to <traout>.
|
| 46 |
.TP 15
|
46 |
.TP 15
|
| 47 |
.B [5] geo2rot
|
47 |
.B [5] geo2rot
|
| 48 |
write the pole position to screen.
|
48 |
write the pole position to screen.
|
| 49 |
.SH AUTHOR
|
49 |
.SH AUTHOR
|
| 50 |
Written by Michael Sprenger and Heini Wernli (July 2011)
|
50 |
Written by Michael Sprenger and Heini Wernli (July 2011)
|