CAJ | 학술논문

以海州湾为研究区域，通过数字化日照港至灌河口海图，引入用多重分形理论改进的Kriging方法对海州湾海底地形进行了构建与三维可视化，并与普通Kriging插值方法的插值结果进行了比较。结果表明：两种方法的插值结果均表明海州湾水下地形起伏不大，呈明显条带状分布；但普通Kriging法对数据集的拉伸较为明显，而基于多重分形的Kriging法由于考虑了空间数据分布的局部奇异性，对数据集的拉伸较小，得到的插值结果更为准确，并能从宏观与微观两个角度更好地呈现海州湾的海底地形。
이해주만위연구구역，통과수자화일조항지관하구해도，인입용다중분형이론개진적Kriging방법대해주만해저지형진행료구건여삼유가시화，병여보통Kriging삽치방법적삽치결과진행료비교。결과표명：량충방법적삽치결과균표명해주만수하지형기복불대，정명현조대상분포；단보통Kriging법대수거집적랍신교위명현，이기우다중분형적Kriging법유우고필료공간수거분포적국부기이성，대수거집적랍신교소，득도적삽치결과경위준학，병능종굉관여미관량개각도경호지정현해주만적해저지형。
The submarine topography with three-dimensional visualization in Haizhou Gulf was constructed by digi-tizing the chart from Rizhao Harbor to Guanhekou and by applying improved Kriging method based on the multifrac-tal theory and compared with the results derived from the Ordinary Kriging interpolation method simultaneously. The findings showed that underwater terrain of two interpolation simulations was relatively flat and presented a banding distribution. However, the negative smoothing effect to sampling dataset was caused by the Ordinary Kriging meth-od. Since the local singularity property of the spatial data was considered in this approach, the improved multifrac-tal Kriging method was found to be more accurate, and more effective in terrain visualization from both macro and micro perspectives.