scholarly journals Permanent scatterer InSAR reveals seasonal and long-term aquifer-system response to groundwater pumping and artificial recharge

2008 ◽  
Vol 44 (2) ◽  
Author(s):  
John W. Bell ◽  
Falk Amelung ◽  
Alessandro Ferretti ◽  
Marco Bianchi ◽  
Fabrizio Novali
Keyword(s):  
Artificial Recharge ◽  
System Response ◽  
Groundwater Pumping ◽  
Aquifer System

Monitoring aquifer-system response to groundwater pumping and artificial recharge

First Break ◽  
2008 ◽  
Vol 26 (8) ◽  
Author(s):  
J.W. Bell ◽  
F. Amelung ◽  
A. Ferretti ◽  
M. Bianchi ◽  
F. Novali
Keyword(s):  
Artificial Recharge ◽  
System Response ◽  
Groundwater Pumping ◽  
Aquifer System

scholarly journals Assessing the long-term sustainability of the groundwater resources in the Bacchiglione basin (Veneto, Italy) with the Mann–Kendall test: suggestions for higher reliability

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Mara Meggiorin ◽  
Giulia Passadore ◽  
Silvia Bertoldo ◽  
Andrea Sottani ◽  
Andrea Rinaldo
Keyword(s):  
Groundwater Level ◽  
Water Cycle ◽  
Groundwater Resources ◽  
Sustainable Use ◽  
Kendall Test ◽  
Groundwater System ◽  
Aquifer System ◽  
Mann Kendall Test ◽  
Status Assessment

The social, economic, and ecological importance of the aquifer system within the Bacchiglione basin (Veneto, IT) is noteworthy, and there is considerable disagreement among previous studies over its sustainable use. Investigating the long-term quantitative sustainability of the groundwater system, this study presents a statistical methodology that can be applied to similar cases. Using a combination of robust and widely used techniques, we apply the seasonal Mann–Kendall test and the Sen’s slope estimator to the recorded groundwater level timeseries. The analysis is carried out on a large and heterogeneous proprietary dataset gathering hourly groundwater level timeseries at 79 control points, acquired during the period 2005–2019. The test identifies significant decreasing trends for most of the available records, unlike previous studies on the quantitative status of the same resource which covered the domain investigated here for a slightly different period: 2000–2014. The present study questions the reason for such diverging results by focusing on the method’s accuracy. After carrying out a Fourier analysis on the longest available timeseries, for studies of groundwater status assessment this work suggests applying the Mann–Kendall test to timeseries longer than 20 years (because otherwise the analysis would be affected by interannual periodicities of the water cycle). A further analysis of two 60-year-long monthly timeseries between 1960 and 2020 supports the actual sustainable use of the groundwater resource, the past deployment of the groundwater resources notwithstanding. Results thus prove more reliable, and meaningful inferences on the longterm sustainability of the groundwater system are possible.

Recognising tectonic and climatic signals in the Paleogene stratigraphy offshore Norway

2020 ◽  
Author(s):  
Tor O. Sømme ◽  
Jakob Skogseid ◽  
Patricia Embry ◽  
Helge Løseth
Keyword(s):  
Seismic Data ◽  
Supply System ◽  
Sediment Supply ◽  
Sediment Flux ◽  
Similar Process ◽  
System Response ◽  
Seismic Reflection Data ◽  
Shelf Slope ◽  
Depositional System

<p>Landscapes and their sediment routing systems can be exposed to various tectonic and climatic perturbations that affect sediment production, transport and delivery to nearby sedimentary basins. Here we investigate a Paleogene depositional system offshore western Norway that was subjected to long-term (~10 Myr) tectonic perturbation and significant hinterland erosion. Superimposed on this long-term uplift, the system was also subjected to a short-lived climatic perturbation during the Paleocene-Eocene Thermal Maximum (PETM), which lasted ~200 kyr. Regional 3D seismic reflection data is integrated with high resolution well data to map the stratigraphic response to these different scales of perturbations on the depositional system. The initiation of the tectonic perturbation is marked by an angular unconformity in seismic data. A rapid increase in sediment flux followed, causing initial progradation of a shelf-slope wedge. Sediment supply estimates indicate that the tectonic uplift caused an order of magnitude increase in sediment flux to the basin, which peaked in the latest Paleocene. This period coincided with the PETM, which is documented by biostratigraphic data as a discrete event within the overall regressive system. Although the PETM often is characterised by increased continental runoff, no increase in sediment supply is evident from seismic data. This work shows that the system response to tectonic and climatic perturbations may vary along strike, depending on the size of the routing systems and the antecedent topography prior to hinterland uplift. A low supply system may produce a tectonically-linked shelf-slope wedge that is of similar thickness as a climatically-linked wedge in a high supply system. This study documents how the same routing system responded to perturbations operating at different spatial and temporal scales and may help recognise similar process-response relationships in other areas.</p>

Assessment of Long-Term Salinity Changes in an Irrigated Stream-Aquifer System

1985 ◽  
Vol 21 (11) ◽  
pp. 1611-1624 ◽  
Author(s):  
Leonard F. Konikow ◽  
Mark Person
Keyword(s):  
Aquifer System ◽  
Salinity Changes
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