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NEW METHOD OF INTERPOLATION

(. NEW METHOD OF INTERPOLATION. Horizontal-distance and direction influences (based on modified Shepard’s interpolator). from nearby stations Pi. 2. Additional topographic influences on interpolated precipitation (from elevation,

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NEW METHOD OF INTERPOLATION

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  1. ( NEW METHOD OF INTERPOLATION • Horizontal-distance and direction influences (based on modified Shepard’s • interpolator) from nearby stations Pi • 2. Additional topographic influences on interpolated precipitation (from elevation, • slope, slope orientation and the degree of exposure to orography • Important: the orographic scale • Orographic elevation • Longitudinal and latitudinal components of the slope of the orographic region • Potential exposure of station “i” to orography • We can estimate an interpolation bias for each station (when topographic influences • Are not taken into account): Then we can estimate And finally:

  2. STATION1 2.5 min 7.5 min 12.5 min Elevation dz/dy Exposure

  3. STATION2 2.5 min 7.5 min 12.5 min Elevation dz/dx dz/dy

  4. STATION 50 2.5 min 7.5 min 12.5 min Elevation dz/dx dz/dy

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