Drivers of water level fluctuations and hydrological exchange between groundwater and surface water at the lowland River Spree (Germany): field study and statistical analyses

2009 ◽  
Vol 23 (15) ◽  
pp. 2117-2128 ◽  
Author(s):  
Jörg Lewandowski ◽  
Gunnar Lischeid ◽  
Gunnar Nützmann
Keyword(s):  
Surface Water ◽  
Field Study ◽  
Water Level ◽  
Statistical Analyses ◽  
Water Level Fluctuations ◽  
Lowland River ◽  
Hydrological Exchange

scholarly journals Effect of Surface Water Level Fluctuations on the Performance of Near-Bank Managed Aquifer Recharge from Injection Wells

Water ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3013
Author(s):  
Peipeng Wu ◽  
Jean-Christophe Comte ◽  
Lijuan Zhang ◽  
Shuhong Wang ◽  
Bin Chang
Keyword(s):  
Surface Water ◽  
Water Level ◽  
Penetration Depth ◽  
Managed Aquifer Recharge ◽  
Groundwater Table ◽  
Water Level Fluctuation ◽  
Water Level Fluctuations ◽  
Level Fluctuation ◽  
Aquifer Recharge ◽  
Average Travel Time

Managed aquifer recharge operations are often conducted in near-bank areas to regulate water resources or reduce seawater intrusion. Yet little is known about the influence of surface water level fluctuations at different temporal scales on MAR performance. A generalized conceptual model was developed based on an investigation site in Western China as a basis to simulate the response surface water level fluctuations on the water table, artificially recharged water lens (formed by the artificially recharged water), groundwater flow paths and average travel times (which is an important control on how quickly contaminants are flushed out of aquifers), and the discharge of the artificially recharged aquifer during the surface water level fluctuation. The results showed a fluctuating groundwater table in the artificially recharged near-bank aquifer under the influence of surface water level fluctuations. The peak values of the increment of the groundwater table induced by artificial recharge decreased with the increase of the period and amplitude of surface water level fluctuation, but the trough values of the increment of water table increases with that. The penetration depth of surface water into the aquifer with a fluctuating surface water level leads to a decreasing increment of the groundwater table which follows a power law. The fluctuating surface water level leads to dynamic changes of artificially recharged water lens morphology and a thinner artificially recharged water lens. A mixing zone of recharged water and ambient water could be found in the artificially recharged near-bank area, which is expected to lead to modifications in the geochemical conditions in the artificially recharged near-bank aquifer. A longer period of surface water level fluctuation leads to a longer average travel time, but the larger penetration depth of surface water and amplitude lead to a shorter average travel time. The peak discharge of the near-bank aquifer was found to decrease with the period of surface water level fluctuation, but it increases with penetration depth and amplitude. This study is important in providing insights into the performance of near-bank managed aquifer recharge with respect to surface water level fluctuation.

scholarly journals Potential Impacts of Induced Bank Filtration on Surface Water Quality: A Conceptual Framework for Future Research

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1240 ◽  
Author(s):  
Mikael Gillefalk ◽  
Gudrun Massmann ◽  
Gunnar Nützmann ◽  
Sabine Hilt
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Surface Water ◽  
Water Level ◽  
Surface Water Quality ◽  
Organic Content ◽  
Water Level Fluctuations ◽  
Future Research ◽  
Seasonal Temperature ◽  
Bank Filtration

Studies on induced bank filtration (IBF), a cost-effective and reliable drinking water production method, usually focus on processes affecting the target drinking water quality. We aim to expand this view by assessing potential impacts of IBF on surface water quality. We suggest that IBF can directly and indirectly affect several physical, chemical and biological processes in both the sediment and open water column, eventually leading to positive or negative changes in source water quality. Direct effects of IBF comprise water level fluctuations, changes in water level and retention time, and in organic content and redox conditions in littoral sediments. Indirect effects are mainly triggered by interrupting groundwater discharge into the surface water body. The latter may result in increased seasonal temperature variations in sediment and water and reduced discharge of solutes transported by groundwater such as nutrients and carbon dioxide. These changes can have cascading effects on various water quality, e.g., by facilitating toxic phytoplankton blooms. We propose investigating these potential effects of IBF in future field and laboratory studies to allow for more detailed insights into these yet unknown effects and their magnitude in order to assure a sustainable application of this valuable technique in the future.

AUTOMATIC WATER LEVEL MONITORING WITH IOT AND LPWAN

2019 ◽  
pp. 95-103
Author(s):  
Krum Videnov ◽  
Vanya Stoykova
Keyword(s):  
Water Level ◽  
Real Time ◽  
Early Warning ◽  
Water Sources ◽  
Water Levels ◽  
Water Level Fluctuations ◽  
Level Monitoring ◽  
Water Level Monitoring

Monitoring water levels of lakes, streams, rivers and other water basins is of essential importance and is a popular measurement for a number of different industries and organisations. Remote water level monitoring helps to provide an early warning feature by sending advance alerts when the water level is increased (reaches a certain threshold). The purpose of this report is to present an affordable solution for measuring water levels in water sources using IoT and LPWAN. The assembled system enables recording of water level fluctuations in real time and storing the collected data on a remote database through LoRaWAN for further processing and analysis.

Sign in / Sign up

Export Citation Format

Share Document