首页> 外文期刊>New Zealand Journal of Marine and Freshwater Research >Long-range dependence in the runoff time series of the most important Patagonian river draining to the Pacific Ocean
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Long-range dependence in the runoff time series of the most important Patagonian river draining to the Pacific Ocean

机译:在径程依赖于径流时间序列,最重要的巴塔哥拉那河流入太平洋

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摘要

The Baker River is the largest free-flowing river in Chilean Patagonia. Long-range dependence (LRD), a recognised hydrological property of river runoff worldwide, was detected for the Baker River runoff time series. Analyses were conducted on a monthly scale between 1961 and 2015 using the fractal and multifractal detrended fluctuation analysis methodology. A long-range-dependent Hurst coefficient (H) equal to 0.94 was obtained. A scaling range, which is the signature of LRD, was detected for the Baker River runoff time series between 1 and 5.25 years. Baker River runoff showed a strong correlation (r=0.96) with the Antarctic Oscillation (AAO) Index during the 2007-2015 period. The high storage capacity of Lake General Carrera, the size of the Baker River basin area and the dynamics of AAO are proposed as main factors that contribute to the emergence of LRD in the Baker River runoff time series.
机译:贝克河是智利巴塔哥尼亚最大的自由流动河流。 为贝克河径流时间序列检测到全球河流径流河径流的公认水文属性的远程依赖(LRD)。 使用分形和多重反转波动分析方法在1961和2015年间的每月规模进行分析。 获得等于0.94的远程依赖性狭长系数(H)。 为贝克河径流时间序列1到5.25年来检测到LRD签名的缩放范围。 Baker River Runoff在2007 - 2015年期间,南极振荡(AAO)指数显示出强烈的相关性(r = 0.96)。 湖泊总卡雷拉湖的高储存能力,贝克河流域的大小和AAO的动态被提出为贝克河径流时间序列中LRD的出现有助于出现的主要因素。

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