Time series analysis for water resources management - application to observed and simulated time-series of the groundwater flow numerical model of the coastal plain of Cecina

IF 0.8 Q4 WATER RESOURCES
S. Menichetti, Stefano Tessitore
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引用次数: 0

Abstract

This paper highlights the potentiality of the time series decomposition applied to transient regime groundwater flow models, as water balance management tool. In particular, this work presents results obtained by applying statistical analysis to some observed time series and to time series derived from the groundwater flow model of the coastal plain of Cecina (Tuscany region, Italy), developed in transient regime within the period 2005-2017. The time series of rainfall, river stage and hydraulic heads were firstly analysed, and then time series decomposition was applied to the “accumulated net storage”, to finally discern and quantify two meaningful components of the groundwater budget, the regulatory reserve (Wr = 22 Mm3) and the seasonal resource (Wd = 2.5 Mm3). These values compared with withdrawal volumes (average of 6.4 Mm3/y within the period 2005-2017) allowed to highlight potentially critical balance conditions, especially in periods with repeated negative climatic trends. Operational monitoring and modeling as following corrective and planning actions for the groundwater resource are suggested.
水资源管理的时间序列分析——在中国沿海平原地下水流动数值模型观测与模拟时间序列中的应用
本文强调了时间序列分解作为水平衡管理工具应用于瞬态地下水流动模型的潜力。特别是,这项工作通过对一些观测时间序列和从切西纳沿海平原(意大利托斯卡纳地区)的地下水流动模型中获得的时间序列进行统计分析,得出了2005-2017年期间在瞬态状态下发展的结果。首先分析降雨、河段和水头的时间序列,然后将时间序列分解应用于“累计净库存量”,最终识别和量化地下水预算的两个有意义的组成部分,即调节储量(Wr = 22 Mm3)和季节性资源(Wd = 2.5 Mm3)。这些值与回采量(2005-2017年期间平均为6.4 Mm3/年)相比,可以突出潜在的关键平衡条件,特别是在反复出现负面气候趋势的时期。建议对地下水资源采取以下的纠正和规划措施进行操作监测和建模。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.80
自引率
50.00%
发文量
36
审稿时长
8 weeks
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