基于耦合热传导-冰流模型的冰川钻孔温度重建的气候反演算法比较
孙欢, 王宁练, 张泉

Comparison of climate inversion algorithms for glacier borehole temperature reconstruction based on coupled heat conduction-ice flow model
Huan SUN, Ninglian WANG, Quan ZHANG
图4 边界条件分别为μ1t=2sin?(2πt/tf)μ2t=2sin?(πt/tf)时三种反演算法重建的冰面温度变化[对θ1z添加±0.02 ℃随机扰动前后的重建结果(a)、(b);对θ2z添加±0.02 ℃随机扰动前后的重建结果(c)、(d)]
Fig. 4 Reconstructed changes in glacier surface temperature under the boundary conditions of μ1t=2sin(2πt/tf) and μ2t=2sin(πt/tf) (black line) using the least square method (blue line), Tikhonov regularization method (red line) and Monte Carlo algorithm (green line) [the input data θ1z and θ2z without errors, (a) and (c), the input data θ1z and θ2z with the random errors ±0.02 ℃, (b) and (d)]