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| author | Gerrit Holl <gerrit.holl@dwd.de> | 2020-01-16 14:52:11 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-01-16 14:52:11 +0100 |
| commit | 4915321e198820c1f9eb4f80bd0997cd0a5ebb26 (patch) | |
| tree | d1b505934ae4ee2be93b6ec0ab56e3c30ca706f7 /docs/source/operations | |
| parent | 3889496c8e60e04c13318a56fafc0dd9093d09f2 (diff) | |
| download | PROJ-4915321e198820c1f9eb4f80bd0997cd0a5ebb26.tar.gz PROJ-4915321e198820c1f9eb4f80bd0997cd0a5ebb26.zip | |
Explain why sweep axis affects geolocation
In the note on the sweep angle, add a line explaining why the sweep angle ultimately affects the geolocation, as it is not immediately or trivially obvious to see why it should matter what the outer or inner gimbal is. To this end, link to a post on Mathematics Stack Exchange that explains this very well.
Diffstat (limited to 'docs/source/operations')
| -rw-r--r-- | docs/source/operations/projections/geos.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/docs/source/operations/projections/geos.rst b/docs/source/operations/projections/geos.rst index e825104f..fb8fb44c 100644 --- a/docs/source/operations/projections/geos.rst +++ b/docs/source/operations/projections/geos.rst @@ -72,6 +72,9 @@ is rotating. The possible values are x or y, y being the default. Thus, the scanning geometry of the Meteosat series satellite should take sweep as y, and GOES should take sweep as x. +The resulting position is different because +`rotation in three dimensions is not commutative <https://math.stackexchange.com/q/2016937/31408>`_. + Parameters ################################################################################ |