نتایج جستجو برای: phreatic water

تعداد نتایج: 550913  

2017
Danilo M. Palladino Greg A. Valentine Gianluca Sottili Jacopo Taddeucci

Reason for Corrigendum: In the original article (Palladino et al., 2015), there was an error in Figure 1. The vertical axis of the qualitative plot reported erroneously “ratio of juvenile to lithic materials in deposits outside of depression”. The correct wording is as follows: “ratio of juvenile to total (i.e., juvenile+lithic) materials in deposits outside of depression”. In fact, as it was r...

Journal: :International Journal of Geo-Engineering 2021

Abstract This paper reports a finite element study to identify the locations of crack initiation in homogeneous earthen dam at its post-construction and reservoir operation stages. The steady state transient analyses, including rise-up drawdown conditions, are simulated favorable conditions generation. behavioral response is represented terms developed total stress, horizontal deformations face...

Journal: :Journal of Cleaner Production 2022

While the identification of spatial patterns fluoride (F−) and nitrate (NO3−) is important for groundwater management, these remain poorly understood in Ordos Basin. A total 107 samples collected from phreatic aquifers were divided into three clusters using self-organizing map (SOM). Cluster I, II III represented contaminated with different type degree pollution. On this basis, factor analysis ...

2006
L. Peeters F. Bação V. Lobo

The use of unsupervised artificial neural network techniques like the self-organizing map (SOM) algorithm has proven to be a useful tool in exploratory data analysis and clustering of multivariate data sets. In this study a variant of the SOM-algorithm is proposed, the GEO3DSOM, capable of explicitly incorporating three-dimensional spatial 5 knowledge into the algorithm. The performance of the ...

Journal: :Hydrology 2022

Managed Aquifer Recharge (MAR), the intentional recharge of aquifers, has surged worldwide in last 60 years as one options to preserve and increase water resources availability. However, estimating extent area impacted by operations is not an obvious task. In this descriptive study, we monitored spatiotemporal variation groundwater temperature a phreatic aquifer before during MAR operations, fo...

Journal: :International Journal of Speleology 2022

Cova de sa Guitarreta is located in the southern part of Mallorca Island (western Mediterranean). It was formed presumably by hypogenic processes Upper Miocene reefal calcarenites. The cave hosts an important breeding colony bats during end spring and early summer. Its microclimate influenced presence a thermal phreatic water table (27.7ºC) as well bat populations remaining along reproductive s...

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