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dc.contributor.author Rudman, Albert J.
dc.contributor.author Blakely, Robert, F.
dc.date.accessioned 2013-09-19T19:09:07Z
dc.date.available 2013-09-19T19:09:07Z
dc.date.issued 1975
dc.identifier.citation Rudman, Albert J.,Blakely, Robert, F. , 1975,Fortran Program for the Upward and Downward Continuation and Derivatives of Potential Fields. Indiana Geological Survery Occasional Paper 10, 23 p., 2 fig. en_US
dc.identifier.uri http://hdl.handle.net/2022/16807
dc.description.abstract In 1960 Roland G. Henderson, of the U.S. Geological Survey, published a comprehensive system for computation of first and second derivatives of potential fields and the continuation of fields to levels above or below the plane of observation. In our study a Fortran IV program (HNDRSN2), based on Henderson's algorithm, uses map data digitized at an equally spaced grid interval. Output from program HNDRSN2 includes maps of the field continued upward or downward from one to five grid units and first and second derivative maps on the surface and on selected downward continued levels. Test cases demonstrate the reliability of the program in standard analyses of gravity and magnetic fields. en_US
dc.publisher Indiana Geological Survey en_US
dc.relation.ispartofseries Occasional Paper;10
dc.subject Fortran en_US
dc.title Fortran Program for the Upward and Downward Continuation and Derivatives of Potential Fields en_US
dc.type Technical Report en_US


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