此一重大考古發現的最大功臣,就是用雷射光對目標物進行高密度掃描以獲取目標物3D形貌的光達技術(LiDAR,即雷射測距技術light detection and ranging),特別是光達技術中發展最快與用途最廣的空中光達。該技術由雪梨大學在柬埔寨的考古研究中心引進,考古探險隊在一架直升機上裝設光達裝置,持續7天在古城所在地上空飛行,取得與多年地面考古研究相符的資料。
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