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8	8	A [[**map projection**>>https://en.wikipedia.org/wiki/Map_projection]] is a systematic transformation of the latitudes and longitudes of locations from the surface of a sphere or an ellipsoid into locations on a plane. Maps cannot be created without map projections. All map projections necessarily distort the surface in some fashion. Depending on the purpose of the map, some distortions are acceptable and others are not; therefore, different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties. The list below summarizes the most common map projections used in Austria.
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11	11	|**Map projection**|**EPSG code**
12	12	|Universal Transverse Mercator (UTM) zone 33N|EPSG:32633
13	13	|World Geodetic System 1984 (WGS84)|EPSG:3395
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27	27	**TIF** stands for Tagged Image File. These files are also known as TIFF files, or "Tagged Image File Format" files. The files that contain the .tif file extension contain high-quality graphic images. These files are used for storing raster graphics images, popular among graphic artists, the publishing industry and photographers. TIFF is widely supported by scanning, faxing, word processing, optical character recognition, image manipulation, desktop publishing, and page-layout applications.
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33	33	[[https:~~/~~/en.wikipedia.org/wiki/Shapefile>>url:https://en.wikipedia.org/wiki/Shapefile]]
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37	37	|**Map projection**|**EPSG code**
38	38	|**Universal Transverse Mercator (UTM) zone 33N**|EPSG:32633
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42	42	|**MGI / Austria GK Central**|EPSG:31253
43	43	|**MGI / Austria GK East**|EPSG:31254
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46	46	[[https:~~/~~/en.wikipedia.org/wiki/Map_projection>>url:https://en.wikipedia.org/wiki/Map_projection]]
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48	48	In remote sensing, **spatial resolution** is typically limited by diffraction, as well as by aberrations, imperfect focus, and atmospheric distortion. The ground sample distance (GSD) of an image, the pixel spacing on the Earth's surface, is typically considerably smaller than the resolvable spot size.