太阳黑子和ENSO对日本吉野川流域水文要素影响
剖析"太阳-气候-水资源"体系作用机制对区域水资源科学管理具有重要科学意义。利用相关分析、主成分分析和小波分析方法,探究太阳黑子运动和厄尔尼诺(ENSO)对日本吉野川流域降雨、地表径流和地下水位影响。研究结果表明:太阳黑子活动和ENSO对研究区域水文过程显著影响分别发生在11 a和2~7 a周期上;太阳黑子运动能量以ENSO为"媒介"作用于流域降水和河川径流,但对地下水位波动影响不明显;太阳黑子活动在不同时频域对研究区域水文过程产生"直接"和"间接"影响,太阳黑子的"直接"影响可能通过调制ENSO外的气候模态来实现,其"间接"作用则通过"ENSO-西太平洋副高-东亚环流-水汽运动"系统作用实现...
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Published in | 水科学进展 Vol. 28; no. 5; pp. 671 - 680 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
水利部长江水利委员会长江科学院, 湖北 武汉 430010
2017
水利部山洪地质灾害防治工程技术研究中心, 湖北 武汉 430010 |
Subjects | |
Online Access | Get full text |
ISSN | 1001-6791 |
DOI | 10.14042/j.cnki.32.1309.2017.05.004 |
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Summary: | 剖析"太阳-气候-水资源"体系作用机制对区域水资源科学管理具有重要科学意义。利用相关分析、主成分分析和小波分析方法,探究太阳黑子运动和厄尔尼诺(ENSO)对日本吉野川流域降雨、地表径流和地下水位影响。研究结果表明:太阳黑子活动和ENSO对研究区域水文过程显著影响分别发生在11 a和2~7 a周期上;太阳黑子运动能量以ENSO为"媒介"作用于流域降水和河川径流,但对地下水位波动影响不明显;太阳黑子活动在不同时频域对研究区域水文过程产生"直接"和"间接"影响,太阳黑子的"直接"影响可能通过调制ENSO外的气候模态来实现,其"间接"作用则通过"ENSO-西太平洋副高-东亚环流-水汽运动"系统作用实现。 |
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Bibliography: | solar activity ; ENSO ; precipitation ; river discharge ; groundwater level ; Yoshino River basin Interpretation on the mechanism involved in the "Sun-Climate-Water"system provides scientific guidance on the water resource management. Using correlation analysis,principal component analysis and wavelet analysis approaches,the combined influences of solar activity and El Ni1 o Southern Oscillation( ENSO) on precipitation,river flow and groundwater levels in Yoshino River basin,Japan were investigated. And the results indicate the following:(1) Significant influences of solar activity and ENSO on the hydrological processes mainly concentrate in the periodicities of 11 and 2—7 a,respectively.(2) The solar-modulated ENSO plays a critical linkage between solar activity and precipitation/surface water resource. However,this linkage doesn't act in the Sun-ENSO-aquifer system.(3) Both direct and indirect influences of solar activity on hydrological processes in the study area are obtained. The direct influence might ac |
ISSN: | 1001-6791 |
DOI: | 10.14042/j.cnki.32.1309.2017.05.004 |