济南岩溶泉域地下水资源丰富,对供水及维持"泉城"特色均具有重要意义。基于1959—2011年济南泉域地下水位、降水、气温观测及NINO3.4 SSTA、SOI、AO与NPI监测资料,采用小波分析方法对泉域地下水位、降水、气温与大尺度气象模式间的遥相关关系进行了分析。结果表明,上述长时间序列监测数据之间存在遥相关,并因各气象模式周期性的差异使遥相关具有不同的时频域特征。泉域地下水位、降水、气温与NINO3.4 SSTA的遥相关主要为1~7a周期尺度;与SOI主要为6~13a及2~6a周期尺度;与AO主要为14~19a及1~8a周期尺度;与NPI为1a、14~19a及6~10a周期尺度。研究有助于从长时间尺度上,了解岩溶泉域地下水资源变化机制,为完善岩溶水资源管理提供依据。
Groundwater resources in the Jinan karst springs watershed is abundant, which is of great significance to both water supply and maintaining the features of the ‘Springs City '. Based on records of groundwater levels,precipitation and air temperature of the Jinan springs watershed,together with monitoring records of four climatic indices,the NINO3. 4 Sea Surface Temperature Anomaly( NINO3. 4 SSTA),the Southern Oscillation Index( SOI),the Arctic Oscillation( AO) and the North Pacific Index( NPI),teleconnections between groundwater levels,precipitation,air temperature and large scale climatic patterns are investigated with the wavelet analysis menthod. The results show that the teleconnections between the monitoring records are of different characteristics on both the time domain and frequency domain because of the periodicity differences in the climatic patterns. The periodicities of the teleconnections between groundwater levels,precipitation, air temperature and the NINO3. 4 SSTA are mainly 1-7 a. The periodicities ofteleconnections with the SOI are mainly 6-13 a and 2-6 a. The periodicities of teleconnection with the AO are mainly 14-19 a and 1-8 a,while the periodicities with the NPI are mainly 1 a,14-19 a and 6-10 a. The results are helpful to better understanding the long time scale variation mechanism of karst watershed groundwater resources and to further improve the karst groundwater management.