Chinese Google Earth-Geo Globe

The Chinese State Bureau of Surveying and Mapping recently launched the project proposal on a Chinese version of “Google Earth” which is based on an existing program designed and implemented by Chinese scientists called “Geo Globe”. The project will focus on sharing the geographical data in order to blend in commercial and community services.
Google Earth fans would notice that the satellite view of all cities in North America, you can almost see the license plate on each automobile. But the satellite view of the Chinese cities on Google Earth is much fuzzier. To be precise, the image data used in Google Earth for the Chinese cities are only 240 meters / cm and 8000 meters / cm for rural areas. This is because Google fetches the data from commercial companies and there are many limitations and cost considerations.
The Chinese National Survey and Mapping database has high quality and accurate GIS data over China, they have great advantages in producing a more precise “Google Earth – China”. The data obtained by Chinese State Bureau of Surveying and Mapping are collected from a variety of geographical mapping methods including both ground-based GPS mapping and aerial mapping.
There are strict laws in each country on the precise scale of GIS data being published for commercial and civilian use. Most countries limit the scale to 30-50 meters / cm. The United States government requires special approval on using any data with a resolution higher than 0.5 m. This is why Google Earth generally use image data with a resolution of 0.6 meters.
I suppose it’s a positive thing for the Chinese government to recognize a higher resolution of satellite image data is appreciated by civilian. Knowing Google Earth is capable to generate over one billion U.S. dollars on ads, it’s not surprising to see local versions of similar applications in China and India with the support of the local government agencies.
At present, Geo Globe is in an internal testing stage. It is being used by Heilongjiang Geographic Information System, Hydro department in Fujian and the National Defense Department.





















































