Last modified by Tuan Le on 2019/05/21 14:16
<
From version < 9.1 >
edited by Wai-Tim Ng
on 2018/08/21 07:49
To version < 11.1
edited by Tuan Le
on 2019/05/21 14:16
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1 1  Index
2 2  
5 +* Equi7Grid
3 3  * Granule
4 4  * KML
5 5  * Map projection
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8 8  * TIF
9 9  
10 10  (% cellpadding="5" cellspacing="5" style="height:612px; width:1338px" %)
14 +|The **[[Equi7Grid>>https://www.sciencedirect.com/science/article/pii/S0098300414001629]]** offers an well defined grid for storing and manipulating EO data, while minimizing data oversampling. Thus being capable of storing data more efficiently without overlapping areas and minimizing [[raster distortions>>http://cartography.tuwien.ac.at/eurocarto/wp-content/uploads/2015/09/3_6_ppt.pdf]]. Equi7 offers three tiling levels: T6 600 km extent, T3 300 km extent and T1 100 km extent.
11 11  |A [[**granule**>>https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/product-types]] has a fixed size, along with a single orbit and the minimum indivisible partition of a product containing all possible spectral bands. For Sentinel-2 Level-1C and Level-2A, the granules, also called tiles, are 100x100km^^2^^ ortho-images in UTM/WGS84 projection. The UTM (Universal Transverse Mercator) system divides the Earth's surface into 60 zones. Each UTM zone has a vertical width of 6° of longitude and horizontal width of 8° of latitude. Tiles are approximately 500 MB in size. Tiles can be fully or partially covered by image data. Partially covered tiles correspond to those at the edge of the swath.
12 12  |[[**Keyhole Markup Language (KML)**>>https://en.wikipedia.org/wiki/Keyhole_Markup_Language]] is an XML notation for expressing geographic annotation and visualization within Internet-based, two-dimensional maps and three-dimensional Earth browsers. KML was developed for use with Google Earth, which was originally named Keyhole Earth Viewer. It was created by Keyhole, Inc, which was acquired by Google in 2004. KML became an international standard of the Open Geospatial Consortium in 2008. Google Earth was the first program able to view and graphically edit KML files. Other projects such as Marble have also started to develop KML support.
13 13  |(((