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Información tecnológica

versión On-line ISSN 0718-0764

Resumen

CHIRINOS, Luis R  y  MALLQUI, Carmen G. Comparison between Spatial Interpolators in the Study of the Distribution of Non-Soluble Sediment Particles in the Atmospheric Basin of Lima and Callao. Inf. tecnol. [online]. 2016, vol.27, n.4, pp.111-120. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642016000400012.

The objective of this research was to represent the spatial distribution of non-soluble sediment particles in the atmospheric basin of Lima and Callao. For this, a spatial interpolator that reproduces the surface distribution close to field values is used. Material collected during winter and summer in 33 sampling points was used (ASTM D-1739-98 norm). Gravimetric registers of non-soluble material were processed with ArcGIS software to obtain the surface distribution by using spatial interpolation methods known as Inverse Distance Weighting (IDW), and also the methods called Kriging and Spline. With the spline method, ranges of negative values for mass weight were obtained. With the Kriging method, the mass values were superior to those obtained in the field. In the case of the IDW method, the values were similar to those obtained in field work. Based on the results, the IDW method represents the best surface distribution method for non-soluble sediment particles in the atmospheric basin.

Palabras clave : non-soluble sediment particles; spatial interpolators; IDW; atmospheric basin.

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