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Issue with Free Air anomaly correction
Currently working through the Gravity and terrain correction walk through using the sample data given and when I read in the FreeAir correction the data is not populating with anything. Any advice?
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the calculated gravity and gravity error curves are missing
Hi all, I was working on a forward model via GM-SYS and suddenly the curves for the calculated gravity and gravity error disappeared, although in the display they are selected. Does anyone know what is the problem with this? how can I fix it? So far, I tried the following approaches, none of them worked: 1- save the model…
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Uncertainty Gravity Data
Hi everyone. I would like to ask if anybody can help me with quantifying uncertainity on gravity data I downloaded from the Bureau Gravimetrique International BGI. I know gravity data are affected by a series of uncertainty coming from aquisition (geographic posizion, elevation, drift correction) and processing…
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Density values in voxi unusual
Dear Voxi user I am new user in Voxi earth modeling and have some questions about it. I have gravity data for inversion. I only have topo data to be used for sensor elevation as well as DEM grid, am I right? Normal unconstraint inversion give me voxel file (V1) with data values as -46 to 23.7. Is that normal density or…
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Values in MicroGravity
I realized that values in MicroGravity are between +1/2 and - 1/2. I guess these values are obtained after removing the mean value from Complete Bouguer values, am I right? for example, if the Complete Bouguer as 15-20 mGal with mean of 17.0, when removing 17 from all data, we get the MicroGravity values.
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Inversion constraints
When using constraints grid in gravity structural inversion, I have basement depth grid from Euler deconvolution and would like to use it as constraints grid, I could not find a way to create such constrain grid. You may have explanation for that issue. regards Essam