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Перевод: areal

относящийся к площади

Тезаурус:

1. There have been a number of published attempts to provide solutions to the cross-area aggregation, or "areal interpolation" problem (Goodchild and Lam 1980; Lam 1983).
2. The solutions to this type of problem utilize either point interpolation or areal interpolation methods (Lam 1983) and these will be examined in turn.
3. For example, the numerator might be a count of people in a postcode sector who have, say, a cancer, yet, because the census and health data are reported for different areal units, it is not possible to find the appropriate at-risk population for the denominator and so compute a reliable incidence ratio.
4. A common problem in geographical information systems (GIS), and one which has been known about for many years in the context of choropleth mapping, is that of producing maps from population data aggregated over selected arbitrary areal units.
5. Similarly, Openshaw et al. (1986) report that the data in the Domesday System are available for 25 different and incompatible types of areal unit.
6. Areal data will not suffice by themselves, since it is quite possible for aggregate areal food production to increase in such a way that increasing numbers of people have difficulty feeding themselves.
7. Although this example relates to what have been termed "imposed" areal units, that have no landscape reality (Unwin 1981), it is increasingly necessary to create aggregations of population over "natural" areal units such as a soil association or outcrop of a particular rock type.
8. The scale of measurement also affects the estimation of soil erosion because, as it becomes smaller, the problem of redistribution of eroded material within the areal unit becomes more serious.
9. In this chapter we concentrate on the problem of integrating geographical data reported for different areal spatial units, one of the most intractable of all data integration problems.
10. The areal interpolation problem can be defined as the transfer of data from one set (source units or zones) to a second set (target units) of overlapping, non-hierarchical areal units.
11. Areal interpolation