Magnitude and modelling of snowmelt runoff in the Cairngorm mountains, Scotland
Magnitude and modelling of snowmelt runoff in the Cairngorm mountains, Scotland
复制标题
苏格兰凯恩戈姆山脉融雪径流的大小和建模
DOI：
10.1080/02626668409490921
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
R. Ferguson
中科院分区：
文献类型：
--
作者：
R. Ferguson
费什河(106km2)的径流在3~6月份表现出持续的日振荡，此时融雪增加的径流量远远超过降雨量。日变化幅度和最大日径流量可与类似大小的瑞士冰川盆地相媲美。使用基于Martinec模型的集总度日模型成功地根据日气温和降水量模拟了1979和1980年春季的日排放量，但内生积雪以与融化成正比的速度收缩。在1979年异常多雪的季节，R2=0.88的最佳拟合度是在53天内实现的。最大的误差是在模拟降水径流时，只有集中数据可用。最佳匹配参数值在物理上是合理的，并且只需要描述初始积雪的两个参数每年都不同。
ABSTRACT Streamflow in the River Feshie (106 km2) shows persistent diurnal oscillations from March to June when runoff augmented by snowmelt greatly exceeds precipitation. Diurnal amplitude and maximum daily runoff are comparable to a similar-sized Swiss glacier basin. Daily discharges in the springs of 1979 and 1980 are successfully simulated from daily air temperatures and precipitation using a lumped degree-day model based on Martinec's model but with endogenous snowpack shrinkage at a rate proportional to melting. A best fit of R2 = 0.88 was achieved over 53 days in the unusually snowy season of 1979. The biggest errors are in simulating runoff from precipitation for which only lumped data are available. Best-fit parameter values are physically reasonable and only two parameters, describing the initial snowpack, need vary from year to year.