What is the Spatial Resolution on Google Earth?

by Rusty Russ

I’m doing a lab report on google earth and one of the questions questions:

What is the spatial resolution? How did you arrive at your answer?

I’ve been looking forever on the web and I also played around with GE but I can’t seem to find an answer to this question. Any tips?

Cheers

Answer by Tinker J
SPATIAL RESOLUTION
A measure of the smallest area identifiable on an image as a discrete separate unit. In raster data, it is often expressed as the size of the raster cell.

http://en.mimi.hu/gis/spatial_resolution.html

For google, It depends on the area, some areas- usualy well populated areas- are very sharp, others are not.

“This can be as accurate as 10 meters in some locations, most areas are about 30 meters. In some mountain areas, finer-extent DEM coverage leads to more accurate submission. The global datum used is WGS84. The base resolution is 15 meters per pixel, but many populated areas and additional areas of interest are at 1 meter per pixel. In a few places, like Las Vegas and Berlin, exceptionally high resolution of 0.15 meters per pixel is available. Wow! Some areas are lousy at 500 meters per pixel and additional areas suffer from cloud cover or low light on water. Still, the resolution is incredible.”

http://ruggedbits.wordpress.com/2007/10/12/i-am-a-google-earth-junkie/

Google recently launched a with satellite that will increase that resolution,

http://arstechnica.com/news.ars/post/20080908-new-satellite-to-give-google-maps-unique-resolution.html

For an accurate answer, your best bet would be to contact google and question- because it’s constantly changing.

Or try to find average estimates and calculate that with the surface area of the earth.

Earth — Surface Area: 510,065,600 km2
According to http://en.wikipedia.org/wiki/Earth

Add your own answer in the comments!

Google Labs Chinese


Image by TJ-Blog
@ blog.tanjun.info

I have a lab in science class/ chemistry. i need a simple but hard science lab for my class. I’ve looked on google and additional places, please give me websites!!!!!!!!

Answer by brocker1966
Take 10 grams of metallic sodium (that’s Na) and a excellent flask with a nice tight stopper. Fill the flask about 1/2 full of hydrogen peroxide and carefully drop the sodium into the flask and quickly replace the stopper, keeping strong difficulty on the stopper with your thumb.

Answer by Isabella S
observing wordiness and osmosis

Answer by Becca
Simple and hard don’t mix.

But, I do have a suggestion. I ran into this same conundrum last small, so I got creative. I tested to see which came to a boil the soonest. Hot, cold, or room temperature. It’s so simple its not even pun. I used this as my science honest project. Hope I helped!

Answer by Courtney L
For my high school science honest we made bridges out of skewer sticks. You were basically testing whether or not triangles strengthened the join. To do it, you just made 5 bridges of each type. 5 made with triangles, 5 made with squares.
The bridges can be really simple, just the surface…you don’t have to place any skewers on the inside. Then you just place weight on them and record which ones broke or tipped or snapped. We did 2 lbs, 4 lbs, 6 lbs, 8 lbs, 10 lbs.-we just used sticks of butter that equalled the lbs.

Know better? Place your own answer in the comments!
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