Methods & Procedures for Modeling Earth's Gravity Field

  • Thread starter Thread starter danny_wong_hk
  • Start date Start date
  • Tags Tags
    Gravity
danny_wong_hk
Messages
3
Reaction score
0
the question is

"Provide an exhaustive list of methods/procedures for modelling and determining the earth’s gravity field at local, regional and global scales and the types of data requirement."

can anyone help to solve this problem, PLZ
 
Physics news on Phys.org
We need to see some of your ideas first, we can't just do the problem for you. We help you help yourself :)
 
Actually, i don't know the different of local gravity filed and global gravity field.
It is quite confuse.
 

Thread 'Initial conditions for orbits around a wormhole'

Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
View full post »

Thread 'Help to convert units of a simple formula'

The value of H equals ## 10^{3}## in natural units, According to : https://en.wikipedia.org/wiki/Natural_units, ## t \sim 10^{-21} sec = 10^{21} Hz ##, and since ## \text{GeV} \sim 10^{24} \text{Hz } ##, ## GeV \sim 10^{24} \times 10^{-21} = 10^3 ## in natural units. So is this conversion correct? Also in the above formula, can I convert H to that natural units , since it’s a constant, while keeping k in Hz ?
View full post »

Similar threads

I A "continous" gravitational field formula r=0 to infinity
Replies
16
Views
655
A Higgs inflation and quadratic gravity
Replies
1
Views
3K
I The standard model from loop quantum gravity via spinors octonions
Replies
26
Views
4K
Magnetic Field of Uniformly Magnetized Infinite Slab
Replies
6
Views
2K
I Witten’s paper: "A Note On The Canonical Formalism for Gravity" LQG
Replies
16
Views
6K
A Mathematical Connection between Cosmic Expansion and Exponential Growth
Replies
24
Views
1K
Electromagnetic plane waves from a current sheet
Replies
1
Views
2K
I Is a Gravitational Field Real or Just a Coordinate Transformation Artifact?
Replies
40
Views
4K
A Just standard model and gravity, up to high energies? An update
Replies
4
Views
2K
Stargazing Possibility of detection of Earth approaching objects by gravity?
Replies
12
Views
2K

Hot Threads

Recent Insights

Back
Top