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List of images showing problems with the gridded population for China produced by the NCGIA in conjuction with UNEP/GRID.

Eastern China , gridded population data, only

Southeastern China , gridded population data and county-level boundaries.

Close-up of extremes of inaccurate gridded population data.

Close-up of gross inaccuracies in the gridded population data for Shanghai Muncipality.

View of the differences in the way major lakes are handled in the gridded population data.

Close up of Xian City showing a strangely empty city centre.

List of images comparing ACASIAN spatial data with those produced by the NCGIA that were used to construct the gridded population data.

Vector data for a region where there are [ extremes ] of both excess and deficient population in the gridded data.]

[ Manchuria ], showing the extent of planimetric inaccuracy in the NCGIA spatial data.

[ Part of Guangdong ], showing both topological and planimetric innaccuracies in the NCGIA spaital data.

[ Part of Guizhou], showing planimetric inaccuracy and other anomolies of the NCGIA spatial data.

[ Shanghai Muncipality ], showing the Shixiaqu (Urban Districts) for the central city where the population is actually concentrated.]

[ The Lake Region ],showing in particular the extent of Dongtingi Lake which is treated anomolously in the gridded population data.

List of images comparing ACASIAN spatial data with those distributed by CIESIN and those produced by the NCGIA.

[ Northern Zhejiang ], showing problems with data sources and temporality.

[ Part of Zhejiang coast ], showing different coast lines, especially missing islands.

[ Sichuan and Chongqing ], showing planimetric inaccuracies of NCGIA data and detail of ACASIAN data in comparison with CIESIN's.

[ Shenzhen ], showing the different boundaries between the new municipality and the county to the its north.

[Hong Kong ], showing the differences in coastlines and the ACASIAN data for Urban Districts.