{"action":"opened","issue":{"url":"https://api.github.com/repos/ubcgif/em/issues/105","repository_url":"https://api.github.com/repos/ubcgif/em","labels_url":"https://api.github.com/repos/ubcgif/em/issues/105/labels{/name}","comments_url":"https://api.github.com/repos/ubcgif/em/issues/105/comments","events_url":"https://api.github.com/repos/ubcgif/em/issues/105/events","html_url":"https://github.com/ubcgif/em/issues/105","id":146823575,"number":105,"title":"Geophysical Surveys / Airborne FDEM","user":{"login":"lheagy","id":6361812,"avatar_url":"https://avatars.githubusercontent.com/u/6361812?v=3","gravatar_id":"","url":"https://api.github.com/users/lheagy","html_url":"https://github.com/lheagy","followers_url":"https://api.github.com/users/lheagy/followers","following_url":"https://api.github.com/users/lheagy/following{/other_user}","gists_url":"https://api.github.com/users/lheagy/gists{/gist_id}","starred_url":"https://api.github.com/users/lheagy/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/lheagy/subscriptions","organizations_url":"https://api.github.com/users/lheagy/orgs","repos_url":"https://api.github.com/users/lheagy/repos","events_url":"https://api.github.com/users/lheagy/events{/privacy}","received_events_url":"https://api.github.com/users/lheagy/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2016-04-08T06:05:49Z","updated_at":"2016-04-08T06:05:49Z","closed_at":null,"body":"- [ ] Airborne EM (intro) \r\n    - [ ] Governing Equations (links to 3 loop, resistive conductive limits, coupling, induction number\r\n    - [ ] Example (2 spheres, like DC) \r\n    - [ ] Field Survey\r\n       - [ ] Bird (Tx, Rx: multiple pairs of loop-loop in a tube; tx/rx offsets; HCP/VCA; primary removal) \r\n       - [ ] Survey Geometry  (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.)\r\n       - [ ] Field Notes (Noise interference: rx noise specs, primary, powerline, swing) \r\n       - [ ] Essential Information for Interpretation (or \"Required Information for Interpretation\") (Pre-delivery processing: leveling, lag correction, resampling, gain calibration, etc.) \r\n       - [ ] Data (visualizing: profile, sounding, map)\r\n    - [ ] Interpretation \r\n        - [ ] Viewing data;  apparent resistivities, voltages, \r\n        - [ ] Qualitative interpretation\r\n        - [ ] 1D, 2D, or 3D for numerical modelling? A representative halfspace or background model. or plate \r\n       (topography?)\r\n        - [ ] Inversion \r\n        - [x] Appraisal (depth of investigation)\r\n        - [ ] Hypothesis testing\r\n    - [ ] 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) \r\n "}}