Spatiotemporal Change Pattern Mining: A Multi-disciplinary Perspective - Space-Time Integration in Geography and GIScience - page 301

17.2.2.4 Spatial Raster Data

Spatial framework is a finite grid imposed on the underlying space (Worboys
and Duckham 2004 ), such as the latitude-longitude system, etc. A finite set of
n computable functions or simple fields f f i , 1 i n g ,where f i : Spatial frame-
work ! Attribute domain ( A i ), map the spatial framework F onto different attribute
domains A i (Shekhar and Chawla 2003 ). For example, Fig. 17.4 a shows the global
precipitation distribution represented as spatial raster dataset. The dataset describes
the reanalysis results of rainfall amount all over the world in Jan 1, 1948, where

a

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0 90E 180E 90W 0

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Longitude

Fig. 17.4 More examples of spatial data ( a ) Image sequence data (Landsat imagery courtesy of
NASA Goddard Space Flight Center and U.S. Geological Survey) ( b ) A spatial raster dataset from
climate science