Geophysical Surveys / Airborne FDEM

[lheagy]

• [ ] Airborne FDEM (intro)
  • [ ] Governing Equations (links to 3 loop, resistive conductive limits, coupling, induction number)
  • [x] Example (2 spheres, like DC)
  • [ ] Transmitters and Receivers
  • [ ] Systems
    • [ ] RESOLVE
    • [ ] DIGHEM
  • [ ] Survey Design (Typical Survey Geometries: Flight: lines and tie lines; control of orientation; height; positioning and Survey design: choice of freq, line spacing, flight height, scale of survey, etc.)
  • [ ] Data (visualizing: profile, sounding, map)
  • [ ] Interpretation
    • [ ] QC / first pass interpretation: ie apparent resistivity, numbers that are more representative of what we are looking for (Viewing data; apparent resistivities, voltages)
    • [ ] Inversion : 1D, 2D, or 3D for numerical modelling? A representative halfspace or background model. or plate. Appraisal (depth of investigation)
  • [ ] Practical considerations (ie: Boom swing - why are VCP more affected than HCP?, Primary removal - what can go wrong? How might this manifest in the interpretation / inversion, Instrument drift - frequency, current)

[yangdikun]

@lheagy : I have done bolding the priority items. Just one thing: I suggest combining "inversion" with 1D/2D/3D. So basically: 1D inversion, 2D inversion, etc. Other skeleton items look good.

[sdevriese]

I was looking at this section for Geophysical Surveys to include some things about ZTEM. Any ideas/comments on how to include it? Or do you think it would be better in Maxwell 3: FDEM, below @thast 's work for MT? Basically, I need a place to describe the ZTEM method, the equations, the airborne system that collects it, and show/describe what the data look like.

[lheagy]

@mikemcm , @fourndo : can you please provide feedback, suggestions on this section. @yangdikun: can you provide a quick summary and status from your perspective?