【摘要】 以表层带岩溶洞穴Velika Pasica溶洞内两个滴水点为研究对象,利用数字滤波法、最小平滑值法,以及两者结合的最小平滑值滤波法,对岩溶表层带水流进行基流分割分析。结果表明:对于特殊的岩溶表层带含水层,递归数字滤波法在滤波参数值(α)为0.925和0.95时,经过正反正三次滤波处理后得到比较好的基流分割效果;经过最小平滑值法处理后再进行一次数字滤波处理,得到结果与在α=0.95时经过三次滤波得到的结果相近。表层带基流分割处理的研究为其调蓄机制的研究提供科学依据。更多还原

【Abstract】 Two permanent drip sites in an epikarst cave-Velika Pasica Cave were studied here. In order to separate the baseflow from the epikarst flow,three methods were applied: the recursive digital filtering,the smooth minima and the filtered smooth minima. It shows that: for the epikarst aquifer,the recursive digital filtering with the filter parameter α = 0. 925 and 0. 95 and three passes preformed better; the result from the filtered smooth minima was close to the digital filtering with α = 0. 95 and three passes,which was also good performance. The discussion on baseflow separation provides a direction for the water regulation and storagement in epikarst.更多还原