ISSN:
1432-1394
Source:
Springer Online Journal Archives 1860-2000
Topics:
Architecture, Civil Engineering, Surveying
Notes:
Abstract. The basic idea of this paper is to modify Poisson's integral for harmonic downward continuation into a convolution formula in the space domain. In this manner, the Fast Fourier Transform can be applied. The method is applied to airborne gravimetry, motivated especially by the Greenland survey. The accuracy of data continuation from the flight-level to the ground is analysed. In particular, the influence of latitudinal extension is investigated, since the introduced convolution formula is exact only for the mid-parallel of the analysed area. The results obtained justify the conclusion that the introduced method is applicable to processing of real data. Extended quadratic areas (up to 2500 km×2500 km) in equitorial areas and (up to 500 km×500 km in regions with latitudes about 75°) can reffectively be processed in one single procedure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00867145
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