Hi Michal, When modelling mag data, use the GM-SYS 3D Tools/Upward continuation/Draped to level... option to convert your observations to a level surface above your highest topo value.
Regards, Ben -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Michal Sent: 30 November 2013 10:55 To: Geosoft Oasis montaj and Target Subject: [geonet] GM-SYS 3D - draped surface calculations Hello, For anyone using GM-SYS 3D and performing forward calculations or inversions - How do you get around the inability to model on draped surfaces? For example: The observed field is from a draped surface (the local topography), but the computed field is from an arbitrary constant surface (normally the highest topography in the area). Substracting one from the other creates the GERR grid in forward calculations. So comparing between apples and oranges, doesn't this result require some corrections? Thanks everyone! Michal --- Forum archives can be accessed here: http://lyris.geosoft.com/read/?fourm=geonet You are currently subscribed to geonet as: [email protected]. To subscribe or unsubscribe from any of our forums, select the User Forum selection on the Geosoft Community page: http://www.geosoft.com/support/community --- Forum archives can be accessed here: http://lyris.geosoft.com/read/?fourm=geonet You are currently subscribed to geonet as: [email protected]. To subscribe or unsubscribe from any of our forums, select the User Forum selection on the Geosoft Community page: http://www.geosoft.com/support/community
