APPLICATION TREND SURFACE MODELS WITH ESTIMATION
DOI:
https://doi.org/10.25130/tjps.v23i10.574Abstract
This research deal with estimation of trend surface analysis and with spatial data with three models to real spatial data represents a rising ground water. The first method in assessment is to estimation trend surface model parameters by (ml), the second method requires decision on the maximum time difference to be calculated (s). while, the third method need a resolution, and the residuals r of dots to take for the conjecture the f(Dij) parameters. The first and second methods require resolution principle of "neighbor" from determines of "W". These three approaches are applied to real data which represent the ground water levels in 47 wells in mountain region in Sin jar district in Nineveh governorate.
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