基于水文数据和水文模拟的南美火山含水层地下水补给研究

IF 2 4区 地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY
Maurício D. Melati , Fernando M. Fan , Gustavo B. Athayde
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引用次数: 6

摘要

在湿润的亚热带地区,基流主要受含水层排放的控制,这种动力由地下水补给提供。为了更好地理解流域地下水补给,采用大规模的方法,研究了位于塞拉·盖拉尔含水层系统(南美洲南部)的两个流域。本研究采用了三种不同的地下水补给方法来研究基流:简化水收支法,采用Eckhardt滤波法分离水线,采用不同的方法获取BFImax参数,以及采用前所未有的MGB-IPH水文模型。这些方法表现出普遍的相互收敛,其中大多数方法的补给量保持相似。MGB-IPH模型被证明是了解地下水补给发生的有用工具。模型中所显示的与水流分离所证明的相互流动的代表性有关的不确定性可能表明,地下水补给的估计可能低于考虑水流线数值过滤所得到的估计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Groundwater recharge study based on hydrological data and hydrological modelling in a South American volcanic aquifer

In humid subtropical regions, baseflow is mainly governed by aquifer discharges and this dynamic is fed by groundwater recharge. To better comprehend the watershed groundwater recharge using a large-scale approach, two watersheds located over the Serra Geral Aquifer System (Southern South America) were studied. Three different groundwater recharge methods were utilized to study the baseflow: a simplified water budget, a hydrograph separation using the Eckhardt filter with different ways of obtaining the BFImax parameter, and the MGB–IPH hydrological model, which is unprecedented in being used for this purpose. These methods showed a general mutual convergence, where recharge magnitude remained similar in most methods. The MGB–IPH model proved to be a useful tool for understanding the occurrence of groundwater recharge. Uncertainties associated with the representativity of interflow demonstrated by hydrograph separation and shown in the model may indicate that the groundwater recharge estimate could be lower than those obtained considering hydrograph numerical filters.

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来源期刊
Comptes Rendus Geoscience
Comptes Rendus Geoscience 地学-地球科学综合
CiteScore
2.80
自引率
14.30%
发文量
68
审稿时长
5.9 weeks
期刊介绍: Created in 1835 by physicist François Arago, then Permanent Secretary, the journal Comptes Rendus de l''Académie des sciences allows researchers to quickly make their work known to the international scientific community. It is divided into seven titles covering the range of scientific research fields: Mathematics, Mechanics, Chemistry, Biology, Geoscience, Physics and Palevol. Each series is led by an editor-in-chief assisted by an editorial committee. Submitted articles are reviewed by two scientists with recognized competence in the field concerned. They can be notes, announcing significant new results, as well as review articles, allowing for a fine-tuning, or even proceedings of symposia and other thematic issues, under the direction of invited editors, French or foreign.
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