Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019WR026545 |
Physiographic and climatic controls on regional groundwater dynamics | |
Ezra Haaf; Markus Giese; Benedikt Heudorfer; Kerstin Stahl; Roland Barthel | |
2020-10-02 | |
发表期刊 | Water Resources Research
![]() |
出版年 | 2020 |
英文摘要 | The main goal of this study is to explore whether the ideas established by surface water hydrologists in the context of “PUB” (predictions in ungauged basins) can be useful in hydrogeology. The concrete question is whether it is possible to create predictive models for groundwater systems with no or few observations based on knowledge derived from similar groundwater systems which are well‐observed. To do so, this study analyses the relationship between temporal dynamics of groundwater levels and climatic and physiographic characteristics. The analysis is based on data from 341 wells in Southern Germany with ten‐year daily groundwater hydrographs. Observation wells are used in confined and unconfined sand and gravel aquifers from narrow mountainous valleys as well as more extensive lowland alluvial aquifers. Groundwater dynamics at each location are summarized with 46 indices describing features of groundwater hydrographs. Besides borehole log‐derived geologic information, local and regional morphologic characteristics as well as topography‐derived boundary and climatic descriptors were derived for each well. Regression relationships were established by mining the data for associations between dynamics and descriptors with forward stepwise regression at a confidence level >95%. The most important predictors are geology and boundary conditions and secondarily, climate, as well as some topographic features, such as regional convergence. The multiple regression models are in general agreement with process understanding linked to groundwater dynamics in unconfined aquifers. This systematic investigation suggests that statistical regionalization of groundwater dynamics in ungauged aquifers based on map‐derived physiographic and climatic controls may be feasible. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/297901 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Ezra Haaf,Markus Giese,Benedikt Heudorfer,et al. Physiographic and climatic controls on regional groundwater dynamics[J]. Water Resources Research,2020. |
APA | Ezra Haaf,Markus Giese,Benedikt Heudorfer,Kerstin Stahl,&Roland Barthel.(2020).Physiographic and climatic controls on regional groundwater dynamics.Water Resources Research. |
MLA | Ezra Haaf,et al."Physiographic and climatic controls on regional groundwater dynamics".Water Resources Research (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论