基于延时数字摄影测量的积雪过程4D监测技术研究
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刘俊峰 1(  ), 陈仁升 1,2, 韩春坛 1, 郭淑海 1, 刘章文 1, 王学良 1,3, 卿文武 4
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Snow surface monitoring from 4D structure from motion photogrammetry
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Junfeng LIU 1(  ), Rensheng CHEN 1,2, Chuntan HAN 1, Shuhai GUO 1, Zhangwen LIU 1, Xueliang WANG 1,3, Wenwu QING 4
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图5. 4D摄影测量正射影像捕捉的坡面尺度逐日积雪空间分布 注:(a)2020年11月21日降雪首日积雪覆盖率达到95%;(b)11月22日少量积雪消融,积雪覆盖率略微降低;(c)~(e)11月23日至25日太阳辐射导致积雪快速消退,积雪覆盖率持续降低;(f)~(j)11月26日至30日少量积雪分布在陡坎背阴处
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Fig. 5. 4D SfM photogrammetry captured daily snow cover distribution over slop scale Note:Snow coverage reached to 95% after snowfall on 21 of November,2020 (a);snow cover reduced slightly on 22 of November(b);snow cover reduced quickly from November 23 to 25 in 2020[(c),(d),(e)];little snow cover distributed over the shadowed area of steep slope from November 26 to 30[(f),(g),(h),(i),(j)]
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