Doug One method is to create three grids, central, 2nd and 3rd areas. You can grid the central area with the optimum grid cell spacing, go to the next zone and use the optimum cell spacing for that (and using that spacing for the high density core stations too) and then do the same for the out zone. You have three grids, three different grid cell size and you can drape them atop one another using the same color scheme. That way you maintain best resolution within a zone. But it always depends on the anomaly character and do the anomalies bleed from the higher density into lower density zones (in which case this does not work as well). Dick
From: Doug Perkin <[email protected]> [mailto:[email protected]] Sent: Monday, May 02, 2016 1:53 PM To: Geosoft Oasis montaj and Target Subject: [geonet] Gridding Gravity data Hi I have a question about gridding gravity data in oasis montaj. What gridding settings are best for a survey with variable spacing like the image below? The spacing ranges from 200m to 800m depending on distance from AOI. I can get good results with default minimum curvature with 40m cell size in the high density part, but don't get very good interpolations where the spacing increases. Is there a way of doing a more regional grid with 200m cells then stitching it to the 40m grid? Any suggestions on the gridding settings here? Regards, Doug [Inline image 2] --- Forum archives can be accessed here: http://lyris.geosoft.com/read/?forum=geonet<http://lyris.geosoft.com/read/?fourm=geonet> You are currently subscribed to geonet as: [email protected]<mailto:[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/forums/register/ --- Forum archives can be accessed here: http://lyris.geosoft.com/read/?forum=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/forums/register/
