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...]

Converting a Google Maps screenshot to Google Earth

Yesterday we looked at a problem with the Street View layer of Google Earth. We thought it would be interesting to compare the Street View coverage as shown in Google Earth with that shown in Google … [Read more...]

Average Cloud Cover Map and Map Projections

We recently came across this article about a recently released map of average cloud cover for the last 13 years produced by NASA. The map is provided in the form of an image and a high resolution … [Read more...]