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Discuss the various methods that can be used in atmospheric pressure data values interpolation obtained from different parts of central region of Kenya.

      

Discuss the various methods that can be used in atmospheric pressure data values interpolation obtained from different parts of central region of Kenya.

  

Answers


Jim
a)Trend surface fitting using regression.
-A surface interpolation method that fits a polynomial surface by least-squares regression through the sample data points. This method results in a surface that minimizes the variance of the surface in relation to the input values.
b)Triangulation.
-Triangulation is an interpolation method that allows the determination of the location/value of an unknown point based on the value of 3 adjacent points.
c)Averages spatial moving method.
-The value of a point's attribute computed by averaging the values of its surrounding points, taking into account their importance or their distance from the point.
-Moving window averaging attempts to directly derive a raster data-set from a set of sampled points
d)Kriging.
-Kriging assumes that at least some of the spatial variation observed in natural phenomena can be modeled by random processes with spatial auto-correlation, and require that the spatial auto-correlation be explicitly modeled.
-Kriging techniques can be used to describe and model spatial patterns, predict values at unmeasured locations, and assess the uncertainty associated with a predicted value at the unmeasured locations.

jim items answered the question on November 14, 2018 at 10:59


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