Merging heterogeneous height data for establishing vertical control in real-time

本研究的总体目标是严格合并异构高度数据，以实时提供垂直地理参考和相关的高度精度值。到目前为止，研究和实现都局限于静态或后处理模式。结合时间变化和提供精度值的实时垂直地理参考系统的应用是多学科和深远的。实时组件对于环境监测、遥感、激光雷达和数字高程建模等许多新兴应用特别有用。结合数值模型和对地表海拔和重力变化过程的观测，这将产生一种新的、全面的方法，用于建立垂直控制，应用于测绘工程、测量、林业和环境科学、土木工程和采矿、水文和海平面变化。这项建议的目的是将新获得的基于卫星的高度信息与现有数据结合起来，并考虑到这些高度数据和垂直基准的时间变化，从而将这项研究提升到一个新的水平。这是解决当前高度活动“差距”的必要步骤，对于多尺度实际应用的现代垂直控制系统的高级实现非常重要。计算并向所有用户提供高度及其精度是研究和行业的“第一”，并将为迄今为止难以实现的垂直地理参考引入可靠性和质量组件。

The overall objective of this research is to rigorously merge heterogeneous height data for providing vertical georeferencing and associated height accuracy values in real-time. Thus far, the research and consequently the implementations have been limited to static or post-processing modes. The applications of a real-time vertical georeferencing system that incorporates temporal variations and provides accuracy values are multi-disciplinary and far-reaching. The real-time component is particularly useful for numerous emerging applications such as environmental monitoring, remote sensing, lidar, and digital elevation modelling. Combined with the inclusion of numerical models and observations of processes that change surface elevations and gravity, this will result in a novel and comprehensive means for establishing vertical control for applications in geomatics engineering, surveying, forestry and environmental science, civil engineering and mining, hydrology, and sea level change. The intent of this proposal is to bring this research to the next level by incorporating newly available satellite-based height information with existing data and by accounting for temporal variations in these height data and vertical datums. This is a necessary step that addresses the 'gap' in current height activities and is important for the advanced implementation of a modern vertical control system for multi-scale practical applications. The computation and provision of heights and their accuracies to all users is a research and industry 'first' and will introduce the reliability and quality components to vertical georeferencing that have been difficult to achieve to date.