Proceedings of the KSEEG Conference (대한자원환경지질학회:학술대회논문집)
- 2000.04b
- /
- Pages.308-310
- /
- 2000
Spectral Distorical data in the polar region
- Kim, Jeong-Woo (Dept. of Earth Sciences and Reserch Institute of Geoinfomatics & Geophysics, Sejong Univ) ;
- Won, Joong-Sun (Dept. of Earth Sciences and Reserch Institute of Geoinfomatics & Geophysics, Sejong Univ) ;
- Min, Kyung-Duck (Dept. Earth System Sciecnces, Yonsei Unoversity) ;
- Kim, Hye-Yun (Dept. Earth System Sciecnces, Yonsei Unoversity)
- Published : 2000.04.01
Abstract
Sampling rates become inconsistent when spatial data in spherical coordinate are re-sampled with respect latitudinal or longitudinal degree for mathematical processes such as Fourier Transfrom, and this results in the distrtions of the processed data in the wavenmber domain. This distortions are more evident in the polar regions. An example is presented to show such distortions during the recovery process of free-air gravity anomalies from ERSI radar atimeter data in Russian Arctic Barents Sea, and a method is present to minimize the distortion using Lambect Conformal Conic map projection.
Keywords