Acceleration Due to Gravity in Rocky Mountains

[Scarborm]

Hello All,

Would anyone happen to know where I can find an "exact" measurement of the acceleration due to gravity at a (almost) precise location on the Earth's surface? Anywhere in the Rocky Mountain region would be fine. Thanks!

 

[blimkie]

a=9.81 m/s^2

 

[pervect]

Hello All,

Would anyone happen to know where I can find an "exact" measurement of the acceleration due to gravity at a (almost) precise location on the Earth's surface? Anywhere in the Rocky Mountain region would be fine. Thanks!

In the US,

http://tin.er.usgs.gov/gravity/bouguer/

looks like a good source (if you can get the ftp link to work)

but the data will be gravity anomaly data, there's some discussion of the formulas used in the wikipedia

http://en.wikipedia.org/wiki/Gravity_anomaly

Google gives lots of other hits, too many to mention, some state specific.

 

[Creator]

Oh, just get yourself a simple gravimeter from your local university geology dept. and take your own measurements.

However, if you happen to have a load of liquid He and a lot of free time ( like 24 months just to read the manual), then I suggest you get a top of the line superconducting gravity meter from these guys:he,he
http://www.gwrinstruments.com/GWR_ctspec.html

 

[HallsofIvy]

The "precise location of the Earth's surface"?? And where would that be? There's a heckuva lot of "earth's surface" in the region of the Rockies and a lot of people on Earth who would think it would be more reasonable to use the gravitational acceleration at sea leve rather than anywhere near the Rockies!

Edit- sorry, I misunderstood your question.

 

[Lapin Dormant]

Hows about going there yourself and using an ultra-fine weight scale, and standing on it, move on, do it again. But you might have to "Invent" to find a scale with that kind of accuracy.

 

[Scarborm]

Thanks Creator and Pervect-- The rest of you are quite useless, but thanks anyway!

 

[Lapin Dormant]

Useless? humor is useless? somebody 'aughta tell you fella

 

[Scarborm]

Sorry. My english is not very good. I did not catch the humor, and I did not mean to sound like a jerk.

 

[Lapin Dormant]

Sorry. My english is not very good. I did not catch the humor, and I did not mean to sound like a jerk.

You didn't, you aren't and My apologies if I seemed somewhat disconcerted in my attempt at humor.

Not as good at it, sometimes, as I would like to think myself, as being.