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-.. _geos:
-
-********************************************************************************
-Geostationary Satellite View
-********************************************************************************
-+---------------------+----------------------------------------------------------+
-| **Classification**  | Azimuthal                                                |
-+---------------------+----------------------------------------------------------+
-| **Available forms** | Forward and inverse, spherical and elliptical projection |
-+---------------------+----------------------------------------------------------+
-| **Defined area**    | Global                                                   |
-+---------------------+----------------------------------------------------------+
-| **Implemented by**  | Gerald I. Evenden and Martin Raspaud                     |
-+---------------------+----------------------------------------------------------+
-| **Options**                                                                    |
-+---------------------+----------------------------------------------------------+
-| `+h`                | Satellite height above earth. Required.                  |
-+---------------------+----------------------------------------------------------+
-| `+sweep`            | Sweep angle axis of the viewing instrument.              |
-|                     | Valid options are ``x`` and ``y``. Defaults to ``y``.    |
-+---------------------+----------------------------------------------------------+
-| `+lon_0`            | Subsatellite longitude point.                            |
-+---------------------+----------------------------------------------------------+
-
-
-.. image:: ./images/geos.png
-   :scale: 50%
-   :alt:   Geostationary Satellite View
-
-The geos projection pictures how a geostationary satellite scans the earth at regular
-scanning angle intervals.
-
-
-Usage
-###############################################################################
-
-In order to project using the geos projection you can do the following::
-
-    proj +proj=geos +h=35785831.0
-
-The required argument ``h`` is the viewing point (satellite position) height above
-the earth.
-
-The projection coordinate relate to the scanning angle by the following simple
-relation::
-
-    scanning_angle (radians) = projection_coordinate / h
-
-
-Note on sweep angle
--------------------------------------------------------------------------------
-
-The viewing instrument on-board geostationary satellites described by this
-projection have a two-axis gimbal viewing geometry. This means that the different
-scanning positions are obtained by rotating the gimbal along a N/S axis (or ``y``)
-and a E/W axis (or ``x``).
-
-.. image:: ../../../../images/geos_sweep.png
-   :scale: 50%
-   :alt:   Gimbal geometry
-
-In the image above, the outer-gimbal axis, or sweep-angle axis, is the N/S axis (``y``)
-while the inner-gimbal axis, or fixed-angle axis, is the E/W axis (``x``).
-
-This example represents the scanning geometry of the Meteosat series satellite.
-However, the GOES satellite series use the opposite scanning geometry, with the
-E/W axis (``x``) as the sweep-angle axis, and the N/S (``y``) as the fixed-angle axis.
-
-The sweep argument is used to tell PROJ which on which axis the outer-gimbal
-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 x, and
-GOES should take sweep as y.