Market Access Density
Title: Market Access Density
Source: Verburg et al. (2011)
Citation: Verburg, P. H., E. C. Ellis, and A. Letourneau. 2011. A global assessment of market accessibility and market influence for global environmental change studies. Environmental Research Letters, 6. [online] URL: http://iopscience.iop.org/1748-9326/6/3/034019/fulltext/.
Global grid of a market access density ($/km) based on travel time to cities of 50,000 or larger and purchasing power parity. Native resolution is 30 arc second projected in Geographic Coordinate System WGS 1984.
1. In ArcMap 10.0, use zonal statistics to calculate mean values within each GLU.
Data is coded by the number of cells covered by the native data (1), data extrapolation (2), and not covered by either (3).
|DGG Cell Coverage Report|
|Coverage Codes||Frequency||Percent||Valid Percent||Cumulative Percent|