利用卫星遥感技术绘制浅海水域的海底类型和水深图

4区 地球科学 Q3 Earth and Planetary Sciences
T. Kutser
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引用次数: 36

摘要

Vahtmae, E., Kutser, T., 2007.The ocean and the ocean of the ocean.海岸研究学报》,SI 50(第九届国际海岸研讨会论文集),185-189。在这种情况下,对水生生态系统的研究就显得尤为重要。另一方面,由于多种原因,绘制和了解水文船无法到达的浅水区的水深非常重要。本研究评估了高空间分辨率多光谱和中等空间分辨率高光谱数据在绘制波罗的海沿岸浅水区水深和底栖大型藻类覆盖图方面的适用性。研究结果表明,在空间异质性很高的地区,使用高空间分辨率的多光谱卫星数据比使用中分辨率的高光谱数据更适合绘制底栖大型藻类覆盖图。在有单幅图像和原位数据的情况下,多光谱高空间分辨率(2.4 米)卫星 QuickBird 可提供比根据不同底部类型的反射光谱形状和传感器光谱分辨率假设的更详细的底栖覆盖信息。事实证明,浅水(小于 3 米)水域的深度图是可靠的,除非是在看不到海底的浑浊水域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mapping Bottom Type and Water Depth in Shallow Coastal Waters with Satellite Remote Sensing
VAHTMAE, E., KUTSER, T., 2007. Mapping bottom type and water depth in shallow coastal waters with satellite remote sensing. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 185 – 189. Gold Coast, Australia, ISSN 0749.0208 Species composition of benthic macroalgal cover and the changes therein are indicators of the trophic state of aquatic ecosystems. On the other hand, mapping and knowledge of water depth in shallow water areas, not accessible by hydrographical ships, is important for several reasons. This study assessed the suitability of high spatial resolution multispectral and medium spatial resolution hyperspectral data for mapping water depth and benthic macroalgal cover in shallow coastal waters of the Baltic Sea. Results of this study indicate that use of multispectral satellite data with high spatial resolution is preferable to using hyperspectral medium resolution data in mapping benthic macroalgal cover in areas where the spatial heterogeneity is very high. In case of a single image and availability of in situ data, multispectral high spatial resolution (2.4 m) satellite QuickBird can provide more detailed information about benthic cover than was assumed based on the shape of reflectance spectra of different bottom types and spectral resolution of the sensor. Depth maps of shallow (less than 3 metres) waters proved to be reliable except in turbid water areas with no bottom visibility.
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来源期刊
Journal of Coastal Research
Journal of Coastal Research 地学-地球科学综合
自引率
0.00%
发文量
87
审稿时长
3-8 weeks
期刊介绍: The Journal of Coastal Research (JCR) is one of the leading international journals for coastal studies and processes, and is published bi-monthly by the Coastal Education & Research Foundation [CERF]. By covering the entire field of coastal research, the JCR encompasses all subjects relevant to natural and engineered environments (freshwater, brackish, or marine) and the protection/management of their resources in the vicinity of coastlines of the world. Even though the journal broadly focuses on immediate shoreline zones, the JCR also embraces those coastal environments that either reach some indefinite distance inland or that extend seaward beyond the outer margins of the sublittoral (neritic) zone. The JCR disseminates accurate information to both the public and research specialists around the world on all aspects of coastal issues in an effort to maintain or improve the quality of our planet''s shoreline resources.
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