中文摘要：

以茂名深水港选址为例，尝试将多时相卫星遥感影像和不同时段的数字化地形信息等资料相结合，从波浪人射方向、悬浮泥沙、滩槽冲淤等方面对建港自然条件进行综合分析，在此基础上探讨SPOT-5号卫星、多时相TM遥感影像和多时段数字化地形信息复合在港口工程中的潜力和优势，并提出基于港口工程选址分析的遥感影像和数字化地形结合的新技术框架。

英文摘要：

Based on multi-time satellite remote sensing images and information on digital topography with different time scales, the natural conditions of port works at Maoming coast, including the incident direction of waves dynamics, suspended sands, erosion and accretion on beach and channel, are analyzed. As an example in this paper, the advantages of the composite data of SPOT-5 image, multi-time landsat images and digital topography to analyze port works are also discussed. In addition, the new technique frame besed on the composite data to study the port works is also brought forward.