The data are valid for exploring patterns and dynamics over large regions. It is not advisable to use the data to draw conclusions about any one locality. Therefore, these data are not recommended for use in analyses of small areas. They are best used for analyses over broader areas.
Although regions were not excluded in the creation of these data, some small urban areas, such as Tromso and Norilsk, are missing. This is a result of resampling the input land-cover data from 463 meters to 5 kilometers as described in the documentation below.
The materials and methods used to develop the Global Grid of Probabilities of Urban Expansion to 2030, v1 data set are described in the Supporting Information Materials and Methods document associated with Seto et al. (2012) "Global forecasts of urban expansion to 2030 and direct impacts on biodiversity and carbon pools" in the Proceedings of the National Academy of Sciences of the United States of America (doi:10.1073/pnas.1211658109).