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首页> 外文会议>Remote Sensing of the Marine Environment; Proceedings of SPIE-The International Society for Optical Engineering; vol.6406 >Satellite radar altimetry from open ocean to coasts: challenges and perspectives
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Satellite radar altimetry from open ocean to coasts: challenges and perspectives

机译：从公海到海岸的卫星雷达测高系统：挑战与前景

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摘要

The history of satellite radar altimetry stems from the need to capture a global view of the surface topography of the oceans. As altimeters are specifically designed for global observations, they encounter major problems in coastal regions, such as relatively poor sampling and inaccuracy of the corrections, so measurements are generally discarded. Nevertheless, a global archive of 15 years of raw data from a series of missions is presently available. The huge amount of unused data in coastal regions can be re-analyzed, improved and more intelligently exploited, possibly promoting coastal altimetry to the rank of operational service. This paper outlines the obstacles limiting the use of the data, discusses some areas of improvement, shows the lessons learned from a case-study in the Mediterranean Sea, and shows that the improved coastal altimetry concept can be extended to other regions, e.g. along the coasts of India. This paper also explores the implications of adopting the emerging vision of the Internet infrastructure in the coastal altimetry context: a collection of unstructured information becomes a network of linked data and software, necessary to perform the specialized on-the-fly processing of the raw data to provide ready-to-use geophysical parameters such as sea level and significant wave height.
机译：卫星雷达测高仪的历史源于需要捕获海洋表面地形的全局视图。由于高度计是专为全球观测而设计的，因此它们在沿海地区会遇到主要问题，例如相对较差的采样和校正的不准确性，因此通常会放弃测量。但是，目前可以获取来自一系列任务的15年原始数据的全球存档。可以对沿海地区大量的未使用数据进行重新分析，改进和更智能地利用，这有可能将沿海测高技术提升到运营服务水平。本文概述了限制数据使用的障碍，讨论了一些改进领域，展示了从地中海案例研究中汲取的教训，并表明改进的沿海测高仪概念可以扩展到其他地区，例如印度沿海地区。本文还探讨了在沿海测高环境中采用新兴的Internet基础设施构想的含义：非结构化信息的收集成为链接数据和软件的网络，这是对原始数据进行专门的即时处理所必需的提供现成的地球物理参数，例如海平面和重要的波高。

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