利用 14C测年法确定新月形沙丘移动速率
何晨晨, 王振亭, 王宗礼

A case study on determining the migration speed of barchans based on carbon-14 dating
Chenchen He, Zhenting Wang, Zongli Wang
表1 利用 14C测年法确定和遥感影像解译的3个新月形沙丘移动速率对比
Table 1 Comparison of migration speed of three Barchan dunes interpreted by carbon-14 dating method and remote sensing images
沙丘位置现代碳 比值

死亡年份

T0

沙丘长度

L/m

利用14C测年法确定的

移动速率v1/(m·a-1)

遥感影像解译的移动

速率v2/(m·a-1)

移动速率相对误差

(|v1-v2|×100/v2)/%

38.789°N, 102.989°E1.236198399.852.562.483.24
38.773°N, 102.997°E1.106199797.853.914.084.07
38.641°N, 102.875°E1.0881999117.295.105.375.04