med17k
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Hi , I wonder why the image of the south pole in google Earth is blurred ?
pergradus said:Secret penguin Area 51.
med17k said:What is Secret penguin Area 51?
micromass said:We don't know yet. But it is reportedly a secret base of the penguin army. It's a place where they test new technology and communicate with penguins from another planet!
micromass said:We don't know yet. But it is reportedly a secret base of the penguin army. It's a place where they test new technology and communicate with penguins from another planet!
Many reasons. Just a few:med17k said:Hi , I wonder why the image of the south pole in google Earth is blurred ?
D H said:Many reasons. Just a few:
- The satellites used to generate the Google Earth imagery are sun synchronous satellites. They never pass over the poles. Spot is in a 98.7 degree orbit, Landsat, 98.2. Any imagery of the poles from those satellites is going to be of low resolution and distorted. You can see this loss of resolution start to kick in at around 80 degrees north and south.
- The algorithm Google uses has some obvious problems at the poles, the south pole in particular. I suspect a mathematical singularity in their internal representation schemes at the poles.
- Google tries to mask out clouds by stitching together multiple images. Clouds are white. So is ice. Google has a hard time with ice sheets because its cloud filtering algorithms masks out the data.