Episodic and Continuous Recharge Estimation from High‐Resolution Well Records

Eaton, Timothy T.

doi:10.1111/gwat.12950

Cited by 3 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, it was possible to use the episodic master recession algorithm to estimate this recharge. Other techniques could be used in such conditions, but they require further investigations and aquifer characteristics (Eaton, 2019). In semi-arid mountain catchments, such sustained groundwater recharge can only be linked to exceptionally high and constant streamflow.…”

Section: Discussionmentioning

confidence: 99%

Dynamics of groundwater recharge near a semi-arid Mediterranean intermittent stream under wet and normal climate conditions

Hajhouji

Fakir²,

Gascoin³

et al. 2022

J. Arid Land

View full text Add to dashboard Cite

In arid and semi-arid stream-dominated systems, the temporal variability in groundwater recharge has not been widely addressed. Various questions remain about the sources of groundwater recharge, its patterns, and the appropriate measuring techniques. Hence, the main objective of the present study was to assess the changes that might affect the pattern of groundwater recharge under wetter than normal surface water availability. Therefore, the groundwater depth was monitored near a semi-arid Mediterranean intermittent stream on the piedmont of the High Atlas Mountains in the mountain catchment of the Wadi Rheraya over two hydrological years (2014-2016) with different climate conditions: extreme wet and normal conditions. Groundwater recharge was assessed using the episodic master recession algorithm. During the two years, the pattern of groundwater recharge was dominated by episodic events and by a high seasonality from wet seasons to dry seasons. In the wet year (2014-2015), the highest groundwater recharge was recorded following an extreme flood, which deeply replenished groundwater. Furthermore, an exceptional steady state of the groundwater depth was induced by a steady groundwater recharge rate. For several groundwater recharge events, the assessed recharge had multiple sources, mainly from streamflow at the local scale, but possibly from precipitation, underflow, deep percolation or irrigation return from the upstream part of the catchment. Local recharge by streamflow was likely to be short-lived, and lateral recharge was likely to last longer. Consequently, the episodic master recession algorithm estimated the total groundwater recharge that could encompass various sources. In the future, more studies and multidisciplinary approaches should be carried out to partition these sources and determine their specific contributions. In semi-arid stream-dominated systems, different groundwater recharge patterns induced by extreme hydrological events (e.g., wet events) and various potential sources of groundwater recharge should be considered when assessing and predicting groundwater recharge.

show abstract

Section: Discussionmentioning

confidence: 99%

Dynamics of groundwater recharge near a semi-arid Mediterranean intermittent stream under wet and normal climate conditions

Hajhouji

Fakir²,

Gascoin³

et al. 2022

J. Arid Land

View full text Add to dashboard Cite

show abstract

“…Episodic recharge events are commonly observed on hydrographs from wells in areas with relatively shallow depths to water (e.g., Healy and Cook 2002;Eaton 2020). For example, recharge events in response to precipitation at different temporal scales are observed in HPA hydrographs in sub-humid south-central Kansas where the water table is much shallower than in areas to the west (average depth to water in northwestern Kansas is over four times that in south-central Kansas; Butler et al 2016).…”

Section: Rechargementioning

confidence: 99%

Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions

Butler¹,

Knobbe

Reboulet

et al. 2021

Groundwater

View full text Add to dashboard Cite

Many of the world's major aquifers are under severe stress as a result of intensive pumping to support irrigated agriculture and provide drinking water supplies for millions. The question of what the future holds for these aquifers is one of global importance. Without better information about subsurface conditions, it will be difficult to reliably assess an aquifer's response to management actions and climatic stresses. One important but underutilized source of information is the data from monitoring well networks that provide near-continuous records of water levels through time. Most organizations running these networks are, by necessity, primarily focused on network maintenance. The result is that relatively little attention is given to interpretation of the acquired hydrographs. However, embedded in those hydrographs is valuable information about subsurface conditions and aquifer responses to natural and anthropogenic stresses. We demonstrate the range of insights that can be gleaned from such hydrographs using data from the High Plains aquifer index well network of the Kansas Geological Survey. We show how information about an aquifer's hydraulic state and lateral extent, the nature of recharge, the hydraulic connection to the aquifer and nearby pumping wells, and the expected response to conservation-based pumping reductions can be extracted from these hydrographs. The value of this information is dependent on accurate water-level measurements; errors in those measurements can make it difficult to fully exploit the insights that water-well hydrographs can provide. We therefore conclude by presenting measures that can help reduce the potential for such errors.

show abstract

The watertable fluctuation method of recharge estimation: A review

Becke,

Solórzano-Rivas,

Werner

2024

Advances in Water Resources

View full text Add to dashboard Cite

Episodic and Continuous Recharge Estimation from High‐Resolution Well Records

Abstract: Article Impact Statement: High-resolution well and rainfall data provide insight into episodic and continuous recharge processes depending on local aquifer conditions

Cited by 3 publications

References 32 publications

Dynamics of groundwater recharge near a semi-arid Mediterranean intermittent stream under wet and normal climate conditions

Dynamics of groundwater recharge near a semi-arid Mediterranean intermittent stream under wet and normal climate conditions

Water Well Hydrographs: An Underutilized Resource for Characterizing Subsurface Conditions

The watertable fluctuation method of recharge estimation: A review

Contact Info

Product

Resources

About