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  • 标题:High resolution digital terrain models of shallow lake basins - Towards modelling dynamics of sedimentation for multithematic ecosystems research
  • 本地全文:下载
  • 作者:Elmar Csaplovics
  • 期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
  • 印刷版ISSN:2194-9042
  • 电子版ISSN:2194-9050
  • 出版年度:1998
  • 卷号:XXXII Part 4
  • 出版社:Copernicus Publications
  • 摘要:Research on GIS applications in the real world context has to be strengthened besides developing GIS applicationsoftware itself. An ecologically important field of applications is the integration of GIS technology in wetlands research.Documentation, analysis and modelling of spatial data of wetlands and lakes supports ecological research and planningto the highest extent. High resolution terrain models of lake basins contribute to multithematic investigations especially inthe fields of hydrology, limnology and vegetation sciences. Digital terrain models (DTMs) of shallow lakes provide spatialdata with high vertical resolution of the slight undulations of the terrain. Spatial dynamics of extensive Research on GISapplications in the real world context has to be strengthened besides developing GIS application sedimentation have tobe documented and analysed by establishing two terrain models based on the sediment surface and the surface ofquaternary sediments respectively. The DTMs and their difference model are highly efficient data pools for building uptime series of topo-chronological change caused by the seasonal and annual dynamics of sedimentation and/or by thewater-level-dependent dynamics of the extension of flooded/non-flooded areas. A case study at Lake Fertö (NeusiedlerSee, Austria, Hungary) proves, that data collection, data analysis and data visualization have to be appropriate and easyto handle on the one hand, but also fully digital with highest precision and utmost multithematic value on the other hand.GIS concepts for monitoring and analysing ecosystems of shallow lakes have to be driven by AT-based researchtowards the integration of operational digital 4D-models of spatial and thematic topo-chronological data.
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