Abstract
AbstractUnbalanced regional development has been a persistent concern in Thailand, and satellite imageries can provide alternative data for examining the dynamics of regional development. This study validated the consistency between Defense Meteorological Satellite Program–Operational Linescan System (DMSP‐OLS) nighttime light (NTL) imageries and data from the official nationwide socio‐economic survey. It found that the two sources exhibited a statistically significant correlation in 1994–2013. On the basis of this finding, the NTL index was applied to the computations of the local indicators of spatial association (LISA) and Moran's I statistics. The results for LISA showed that Bangkok and its vicinity were highly concentrated development areas during the study period. However, the obtained Moran's I statistics indicated that the degree of concentration continuously decreased. NTL‐based Gini, Theil, and Atkinson inequality indices were also computed to validate the spatial expansion of regional development. All three NTL‐based indices showed that regional inequality decreased during the study period.
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