first What is an ellipsoid?
short, a flattened ball. Lang: The result of a rotation of an ellipse around its own axis. The ellipsoid is basically a higher power ellipse.
(http://www.olanis.de/knowhow/mapprj/mapprj2.shtml)
second As the name of the ellipsoid is used in the GK system?
This uses the Bessel ellipsoid.
(http://www.olanis.de/knowhow/mapprj/mapprj2.shtml)
third What is the difference between geographic and projected Cartesian coordinates
?
The Cartesian coordinate system is a geometric projected that with his points, a reference in a 2 - or 3-dimensional search space.
The geographic coordinate system refers to points that lie on the surface. The underlying latitude and longitude coordinates.
4th What is the Gauss-Krüger projection system based on? (Short explanation)
The transverse Mercator projection.
(http://www.olanis.de/knowhow/mapprj/mapprj5.shtml)
5th What advantages does a Cartesian coordinate system?
advantage are the orthogonal axes and metric units.
(http://www.geoinformatik.uni-rostock.de/einzel.asp?ID=1069)
6th Which units are to GK coordinates?
is the case of the unit it is meter (m).
7th What is in this context, the term 'Meridian'?
A meridian of the earth's surface between the two poles.
8th Why be used in the GK system called meridian strip?
otherwise occur due to the distortions increase with increasing distance to the central meridian very quickly, use so-called meridian strip.
(http://www.olanis.de/knowhow/mapprj/mapprj5.shtml)
9th How to recognize the code used in the GK-strip to a coordinate?
Individual strips are to the east marked development on the basis of the length of their meridians.
(http://www.geoinformatik.uni-rostock.de/einzel.asp?ID=743)
10th Which formula can be the easiest of the central meridian of any GK Strip
calculated?
result is: longitude divided by 3
11th Translate the terms Easting 'and' Northing 'in the current context.
Easting is the indication of direction to the right, Northing direction indicator upward.
(http://www.olanis.de/knowhow/mapprj/mapprj5.shtml)
12th What is meant by the terms 'False Easting' and False Northing?
A shift in values by a new factor X and / or y.
(http://www.olanis.de/knowhow/mapprj/mapprj5.shtml)
13th Be 'False Easting' and 'False Northing' used in the GK system? (Why or why
not?)
Yes, but only the False Easting is used to avoid negative numbers in the code.
14th Briefly explain the abbreviations 'OGC', 'SRS' and 'EPSG code'.
OGC: Open Geospatial Consortium
organization for the development of spatial information processing.
(http://www.opengeospatial.org/ogc)
SRS: Spatial Reference System
A projected geographic coordinate system
(http://www .geoinformatik.uni-rostock.de/einzel.asp? id =- 43809376)
EPSG code
A system of unique 4-5 digit number for coordinate systems
(http://www.gaia-mv.de/dienste_nutzung.html)
15th What 'EPSG codes' in Germany (when using the GK system) used?
In Germany, Bessel, Krassowski, ETRS and WSG codes are used.
(http://www.gaia-mv.de/dienste_nutzung.html)
