Figure 4
From: A study of spatial resolution in pollution exposure modelling
NOX values [μg/m3] obtained by bilinear and polynomial interpolation for the urban study site with spatial resolution 400 and 800 metres and a time resolution of one hour during the whole of January 2003. The polynomial interpolation method requires 16 (4 × 4) input values, unlike the bilinear interpolation method, which requires only 4 input values, and therefore a large proportion of the grid cells close to the boundary of the modelled area are not computed.