| ENSO循环与黄河上游径流的丰枯 |
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| 引用本文： | 蓝永超,丁永建,康尔泗,MA Quanjie,Zhang Jishi.ENSO循环与黄河上游径流的丰枯[J].地理学报(英文版),2003,13(1):105-111. |
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| 作者姓名： | 蓝永超 丁永建 康尔泗 MA Quanjie Zhang Jishi |
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| 作者单位： | 1. Cold and Arid Regions Environmental and Engineering Research In stitute，CAS，Lanzhou 730000，China; 2. Lanzhou Administrative Office of Hydrology and Water Resources of the Upper Reaches of the Yellow River，L anzhou 730030，China |
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| 基金项目： | Knowledge Innovation Project of Cold and Arid Regions Environmental and Engineering Research Institute of CAS, No.210100, No.210016，Knowledge Innovation Project of CAS, No.KZCX1-10-03，National Natural Science Foundation of China, No.4 |
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| 摘 要： | 1IntroductionScholarsoftheinternationalmeteorologicalandoceanographicalcirclesgenerallythinkElNinoeventhasoccurredwhenthepositivedeparturesofmeansea-surfacetemperature(SST)atEquatorialEastPacificOceanArea(lyingbetween0o-10oS,180o-90oW)occurcontinuallywith0.5oCexteedingthelong-rangemeanandcontinualperiodlastinghalfayear.TheyalsothinkLaNinaeventhasoccurredwhenthestrongernegativedeparturesoccur.SouthernOscillationoccurringsynchronouslywithElNinoindicatesitisaneventwithalternativeoccurrence…
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| 收稿时间： | 10 June 2002 |
| 修稿时间： | 30 November 2002 |
The relationship between ENSO cycle and high and low-flow in the upper Yellow River |
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| LAN Yongchao,DING Yongjiang,KANG Ersi,MA Quanjie,Zhang Jishi.The relationship between ENSO cycle and high and low-flow in the upper Yellow River[J].Journal of Geographical Sciences,2003,13(1):105-111. |
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| Authors: | LAN Yongchao DING Yongjiang KANG Ersi MA Quanjie Zhang Jishi |
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| Institution: | 1. Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China
2. Lanzhou Administrative Office of Hydrology and Water Resources of the Upper Reaches of the Yellow River, Lanzhou 730030, China |
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| Abstract: | Firstly, the hydrological and meteorological features of the upper reaches of the Yellow River above Tangnag are analyzed based on observation data, and effects of EI Nino and La Ni na events on the high and low flow in the upper Yellow River are discussed. The results show El Nino and La Nina events possess consanguineous relationship wi th runoff in the upper Yellow River. As a whole, the probability of low fl ow occurrence in the upper Yellow River is relatively great along wit h the occurrence of El Nino event. Moreover, the flood in the upper Yellow River occurs frequently with the occurrence of La Nina event. Besides, the results also show dissimilarity of El Nino event occurri ng time exerts greater impact on high flow and low flow in the uppe r Yellow River, that is, the probability of drought will be greater in the sam e year if El Nino event occurs in spring, the high-flow may happen in this y ear if El Nino occurs in summer or autumn; the longer the continuous period of El Nino is, the lower the runoff in the upper Yellow River is. |
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| Keywords: | El Nino event La Nina event the upper Yellow River high-flow and low-flow |
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