The Strange Sights of Jiayuguan

We were investigating China's new Silk Road that has been in the news recently (find various maps via Maps Mania), and we came across some strange shapes in the city of Jiayuguan, China. The most … [Read more...]

Calibration Targets 3: China

This is the third in our series on calibration targets. Note that such targets are used for both satellite imagery as well as imagery captured from aircraft. Today we are looking at some calibration … [Read more...]

The Jiangsu tornado

Although Google has neglected to update 'historical imagery' in Google Earth since early June, they have been adding fresh imagery, and when it is reasonably good quality, it goes into the default … [Read more...]

China’s South–North Water Transfer Project

We recently came across China's South–North Water Transfer Project. China has more water in the south than the north and water shortages are becoming a problem in the north. The South–North Water … [Read more...]

A further look at Chinese map offsets

Yesterday we talked about how the Street Maps of China are offset from the satellite imagery because of their laws requiring the use of the GCJ-02 datum. The GCJ-02 datum moves the map by different … [Read more...]

Chinese street maps out of alignment in Google Earth and Google Maps

While investigating the recent explosions in Tianjin, China, we noticed that the street map of China is out of alignment in both Google Earth and Google Maps. It is tempting to think that the … [Read more...]