Operational research of airborne topo-bathymetric lidar

机载地形测深激光雷达业务研究

• 批准号: 469726-2014
• 负责人: Joseph, Alain
• 金额: $ 2.14万
• 依托单位: Nova Scotia Community College
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=641594
• 关键词: Operational; research; airborne; topo; bathymetric

Bathymetric surveys in coastal zones are often missing data in shallow water areas due to the danger tonavigation for marine survey vessels and the inability of traditional topographic lidar surveys to penetrate thewater column. The lack of elevation information on coastal maps is often referred to as the "white ribbon gap"and poses unique challenges to researchers and commercial groups operating within the coastal zone. TheApplied Geomatics Research Group (AGRG) within the Nova Scotia Community College has recentlyacquired an AHAB Chiroptera 2 topographic-bathymetric (topo-bathy) lidar system capable of seamlesslymeasuring the land topography and shallow water bathymetry to eliminate this gap in freshwater and coastalenvironments. AGRG will partner with Leading Edge Geomatics (LEG), an established remote sensingmapping firm that specializes in digital aerial photography and topographic lidar acquisition, to research themost efficient method to use this new equipment to survey the coastal zone and produce maps that are ofcommercial value. The project will involve aerial surveys in the Northumberland Strait where shellfishaquaculture is prominent, the Atlantic Ocean coast and the Bay of Fundy where tanker traffic is expected toincrease and the coastal area supports a variety of natural habitats for the commercial fishery (sea urchins, kelpbeds), and host environmentally sensitive coastlines such as salt marshes. This new technology will alsosupport small craft harbours to map channels for safe navigation and identify areas that may require dredging aswell as mapping the submerged seaweed and ecologically sensitive plants.

海岸带的水深测量往往是浅水区的缺失数据，这是由于海洋勘测船的导航存在危险，以及传统的地形激光雷达测量无法穿透水柱。沿海地图上缺乏高程信息，这通常被称为“白丝带缺口”，给在沿海地区经营的研究人员和商业团体带来了独特的挑战。新斯科舍省社区学院内的应用地球信息学研究组(AGRG)最近购买了AHAB Chiroptera 2地形-水深(TOPO-BASTY)激光雷达系统，该系统能够无缝测量陆地地形和浅水水深，以消除淡水和海岸环境中的这一差距。AGRG将与Leg合作，后者是一家老牌的遥感测绘公司，专门从事数字航空摄影和地形激光雷达采集，研究使用这种新设备测量海岸带并制作具有商业价值的地图的最有效方法。该项目将涉及在贝类养殖突出的诺森伯兰海峡、大西洋海岸和芬迪湾进行航空调查，预计那里的油轮流量将增加，沿海地区为商业渔业提供各种自然栖息地(海胆、海带)，并拥有诸如盐沼等对环境敏感的海岸线。这项新技术还将支持小型船只港口绘制安全航行的航道图，确定可能需要疏浚的区域，以及绘制水下海藻和生态敏感植物的地图。