Real-time simulation of surface water and groundwater with data assimilation

He, Xin; Lucatero, Diana; Ridler, Marc-Etienne; Madsen, Henrik; Kidmose, Jacob; Hole, Øyvind; Petersen, Claus; Chen, Kewei; Refsgaard, Jens Christian

doi:10.1016/j.advwatres.2019.03.004

Cited by 22 publications

(19 citation statements)

References 64 publications

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“…Similar ndings were found by Camporese et al (2009b). Moreover, He et al (2019) show that assimilating both surface water and groundwater head observations in a process-based hydrological model increases the accuracy of both surface water and groundwater head simulations.…”

Section: Appendix Asupporting

confidence: 84%

“…Several studies have investigated the implementation of soil moisture information in operational water resources management (Wanders et al, 2014b;Kurtz et al, 2017;Deng et al, 2019;He et al, 2019), meteorological forecasting (Drusch et al, 2009;De Rosnay et al, 2013), and irrigation management . Since soil moisture provides valuable information for drought and ood events as described in Section 1.3.1, information on soil moisture dynamics is a valuable asset for water managers.…”

Section: Implications For Water Managementmentioning

confidence: 99%

“…The twin experiment is performed for the in situ station locations and for a period of two months: May 1 In general, increasing the ensemble size will lead to a better representation of model uncertainty (Zhang et al, 2016). However, due to computational limitations, one has to nd a balance between computational costs and appropriate ensemble size (He et al, 2019). To determine the number of ensemble members, we varied the ensemble size (8, 16, 32, and 64 members) and assessed the corresponding Root Mean Square Error (RMSE) of the TWIN-EnKF run.…”

Section: Twin Experimentsmentioning

confidence: 99%

“…Furthermore, the implementation of remote sensing data in operational management requires additional investments in data acquiring, processing and storage facilities. However, we expect that due to the development of new computational methods, these challenges become less of an issue in the future (He et al, 2019). For example, Kurtz et al (2017) show the potential of combining data assimilation and integrated physicallybased hydrological modelling with cloud computing techniques for operational water resources management.…”

Section: Implications For Operational Water Resources Managementmentioning

confidence: 99%

“…Data assimilation aims to nd an optimal combination of merging hydrological model state estimates with observations. Several studies have shown the value of data assimilation schemes for integrated surface-subsurface modelling (Camporese et al, 2009a,b;Zhang et al, 2016;Botto et al, 2018;Zhao and Yang, 2018), some speci cally focusing on operational applications (Hendricks Franssen et al, 2011;De Rosnay et al, 2013;Kurtz et al, 2017;He et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Application of soil moisture information for operational water management

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Section: Appendix Asupporting

confidence: 84%

Section: Implications For Water Managementmentioning

confidence: 99%

Section: Twin Experimentsmentioning

confidence: 99%

Section: Implications For Operational Water Resources Managementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Groundwater–surface water interaction in Denmark

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The study of groundwater–surface water interaction has attracted growing interest among researchers in recent years due to its wide range of implications from the perspectives of water management, ecology and contamination. Many of the studies shed light on conditions on a local scale only, without exploring a regional angle. To provide a broad and historical overview of groundwater–surface water interaction, a review of research carried out in Denmark was undertaken due to the high density of studies conducted in the country. The extent to which this topic has been investigated is related to Denmark's physiography and climate, the presence of numerous streams and lakes combined with shallow groundwater, and historical, funding, and administrative decisions. Study topics comprise groundwater detection techniques, numerical modeling, and contaminant issues including nutrients, ranging from point studies all the way to studies at national scale. The increase in studies in recent decades corresponds with the need to maintain the good status of groundwater‐dependent ecosystems and protect groundwater resources. This review of three decades of research revealed that problems such as the difference in scales between numerical models and field observations, interdisciplinary research integrating hydrological and biological methods, and the effect of local processes in regional systems remain persistent challenges. Technical progress in the use of unmanned aerial vehicles, distributed temperature sensing, and new cost‐effective methods for detecting groundwater discharge as well as the increasing computing capacity of numerical models emerge as opportunities for dealing with complex natural systems that are subject to modifications in future triggered by climate change.This article is categorized under: Science of Water > Hydrological Processes Science of Water > Water and Environmental Change Water and Life > Nature of Freshwater Ecosystems

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Transformation among precipitation, surface water, groundwater, and mine water in the Hailiutu River Basin under mining activity

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Coal mining has changed the hydrogeological conditions of river basins, and studying how the relationship among different types of water body has changed under the influence of coal mining is of great significance for understanding the regional hydrological cycle. We analyzed the temporal and spatial distribution of hydrochemical properties and environmental isotopes in the Hailiutu River Basin (HRB), China with a mixed model. The results showed that: (1) human activity (e.g., coal mining and agricultural production) causes considerable changes in the hydrochemical properties of surface water in and around the mining areas, and leads to significant increases in the concentrations of Na + and SO 2-4 ;(2) precipitation is the main source of water vapour in the HRB. The transformation between surface water and groundwater in the natural watershed is mainly affected by precipitation; and (3) in the mining areas, the average contribution rates of precipitation to the recharge of surface water and groundwater increased by 2.6%-7.9% and 2.7%-9.9%, respectively. Groundwater in the Salawusu Formation constitutes up to 61.3%-72.4% of mine water. Overall, this study is beneficial for quantifying the effects of coal mining on local hydrological cycles. The research results can provide a reference for local water resources management and ecological environment improvement.

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Real-time simulation of surface water and groundwater with data assimilation

Cited by 22 publications

References 64 publications

Application of soil moisture information for operational water management

Application of soil moisture information for operational water management

Groundwater–surface water interaction in Denmark

Transformation among precipitation, surface water, groundwater, and mine water in the Hailiutu River Basin under mining activity

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