整合多元化數值資料之監測成果比對Google Earth之影像紀錄──以大漢溪河谷為例

Integrated multiple digital measurement data for Monitoring results to compare the image records of Google Earth

空間科學技術多元化的發展，已是時代趨勢，如何整合這些觀測資料，應用發展在工程測量上各項領域，正是當前業者和學者努力的目標。
本研究嘗試整合多元化的觀測資料，應用於監測地形變遷之研究。利用三維光達雷射掃描技術，套合電子化全球衛星即時動態定位系統之數值資料，同時結合大氣水文、數值地形模型(Digital Terrain Model)等多元量測的觀測資料，最後比對谷歌地球影像資料紀錄，藉以長期監測大漢溪河谷之地形變遷。
本次研究之方向可大致歸納為以下：
1.多衛星資料套合e-GNSS觀測系統進行控制點位量測
2.3D LiDAR觀測資料對大漢溪河谷進行階段性地形監測
3.整合多元化之數值資料比對影像紀錄
4.驗證大漢溪河谷之地形變遷
經本實驗數據分析，自106年至111年多次監測，由本研究整合之監測成果比對谷哥地球Google Earth影像紀錄，顯示出大漢溪河谷地形變遷之事實存在，也驗證多元化量測技術監測模式的可行性。

The diversified development of space science and technology is the trend of the times. How to integrate these observation data and apply them to various fields of engineering surveying is the goal of current industry practitioners and scholars.
This study attempts to integrate Multiple Measurement Data and apply it to the study of monitoring terrain-changes. Integrated numerical data of 3D LiDAR( three-dimensional Light Detection and Ranging ), e-GNSS (Electronic Global Navigation Satellite System) and multiple measurement data( such as atmospheric-hydrology and DTM data) to compare with Google Earth image record.
The aims of those studies are summarized as follow:
1. Useing multi-satellite data integrated e-GNSS technology to implement measurement of control points.
2. Using 3D LiDAR observation data for periodic monitoring the terrain-changes in the Dahan River Valley.
3. Compared Google Earth image- record with the multiple measurement data.
4. Verifying Terrain changes of the Dahan River Valley.
From 2017 to 2022 of multiple monitoring, the results of this study shows the existence of the terrain-changes in the Dahan River Valley, and proposes the feasibility of the monitoring mode of multiple.