GEOB 270 Lecture Notes - Lecture 5: Modifiable Areal Unit Problem, Digital Elevation Model, Fallacy
25 Dec 2016
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Process of generalization: readily able to be understandable by the viewer. If you(cid:859)re ge(cid:374)eralizi(cid:374)g the data i(cid:374) differe(cid:374)t ways, the(cid:374) you(cid:859)re (cid:272)ha(cid:374)gi(cid:374)g the u(cid:374)derlyi(cid:374)g meaning. Generalization: simplification: reducing complexity, classification: reducing complexity, selection: excluding unwanted or appropriate source. At scale, what is most relevant by the analysis: smoothing and enhancement: improve communication, displacement: clarity, as scale decreases, generalization must increase. Modifiable areal unit problem(maup): problem of scale and generalization, different number of aggregation units: Two types of grouping: regular(grid) vs three rectangles to aggregate the data. Modifiable and arbitrary: different shape of aggregation units: Data considerations no fixed geography: since space = malleable, no fixed geography. Every study has their own spatial units creates issues such as ecological. Referred to as field, non-discrete, surface data. Phenomena that varies across a surface from a source of measurement. Represents objects in both feature(vector) and raster data storage systems. Taking uneven world and translating into a mathematical grid.
