Ice Freeboard, Roughness and Topography from UAV Laser Profilometry, Satellite and Surface Observations: Relationships to Ice Dynamical and Thermodynamical Properties

提供资金用于开发、测试和部署低成本激光剖面系统，该系统可在小型无人驾驶飞行器（UAV）上运行，并能够作为广泛分布的长期监测和观测计划的一个组成部分，例如可能为国际极地年建立的计划。 作为这一发展的一部分，数据分析足以测试的能力，以提取基本的海冰参数，如粗糙度和干舷，从激光剖面飞越北极海冰附近的巴罗，阿拉斯加将包括在内。 使用基本的分析技术，如粗糙度与其他数据集（中分辨率成像分光仪冰产品和卫星合成孔径雷达和散射仪图像）的比较，这些数据应足以产生大量的了解冰条件的变化。 虽然这项工作的重点是提高对海冰的认识，但拟议的激光剖面系统和分析技术也适用于许多其他研究用途，例如绘制冰盖和冰川的变化图、植被冠层研究、监测海岸线变化和测量海浪高度。

Funds are provided for the development, testing, and deployment of a low-cost laser profiling system that can be operated onboard small unpiloted aerial vehicles (UAVs), and that is capable of serving as a component of a widely distributed and long-term monitoring and observation program, such as may be established for the International Polar Year. As part of this development, data analyses sufficient to test the ability to extract basic sea-ice parameters, such as roughness and freeboard, from laser profiles flown over the Arctic sea ice near Barrow, Alaska will be included. Using basic analysis techniques such as comparisons of roughness with other data sets (MODIS ice products and satellite SAR and scatterometer imagery), these data should suffice to yield substantial insights into variations in ice conditions. While the focus of this effort is on improved understanding of sea ice, the proposed laser profiling system and analysis techniques are applicable to many other research uses, e.g. mapping changes in ice sheets and glaciers, vegetation canopy studies, monitoring shoreline change, and surveying ocean wave heights.