Magnetic resonance sounding measurements as posterior information to condition hydrological model parameters: Application to a hard-rock headwater catchment

Lesparre, Nolwenn; Girard, Jean-François; Jeannot, Benjamin; Weill, Sylvain; Dumont, Marc; Boucher, Marie; Viville, Daniel; Pierret, Marie‐Claire; Legchenko, Anatoly; Delay, Frédérick

doi:10.1016/j.jhydrol.2020.124941

Cited by 21 publications

(40 citation statements)

References 97 publications

(129 reference statements)

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“…Therefore, the early research about this topic is mainly focused on the qualitative exploration of the theory and concepts of how to achieve a sustainable HWR. For example, Lesparre et al (2020) [15] believed that the human-water relationships should be focused on the interrelationship between the human economy and the earth's hydrological system; Allan (2003) [16] proposed a "human-water" integrated water resources management framework; Haruvy (1997) [17] studied the current state of the world's water resources, showing that water use is closely related to agriculture, the environment, and social changes.…”

Section: Introductionmentioning

confidence: 99%

A Harmony-Based Approach for Assessing and Regulating Human-Water Relationships: A Case Study of Henan Province in China

Zuo

Zhao

et al. 2020

Water

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The conflict of the human-water relationships (HWR) has further increased the water-related risks, such as water environment deterioration, water shortages, and even regional violent conflicts for obtaining usable water resources. Knowing how to evaluate and regulate the discordant HWR to form a balanced growth between sustainable socio-economy and water resources protection has become a critical issue in water resources management. The harmony theory method, which provides a new perspective for solving the conflict between humans and water, has been widely used in current studies. However, this method focuses less on the quantitative study of the balance status of HWR. This study proposes a harmony theory-based HWR evaluation method that contains a systematic process of harmony assessment, indicator identification, harmony balance constraints, and harmony regulation for assessing and regulating the discordant HWR. The Henan Province of China, which has a complicated HWR, was selected as a case study to apply and verify the approach proposed in this study. The results indicated that (1) Henan Province showed a poor harmony status. The human–water harmony degree of 18 distinctions in the province varied from 0.41 to 0.76, showing an increasing trend from 2006 to 2018, indicating that the HWR was gradually improving in recent years. (2) The human–water harmony degree showed that HWR in the southwest part of Henan Province, with less human activities, was better than that in its northeast part, which had faster social development. Sanmenxia City, located in the west part of the province, had the highest human–water harmony degree because of the recent water control projects implemented in the city, indicating that human production measures could effectively help improve HWR. (3) At present, Henan Province has serious discordant indicators in these three aspects (water system health, humanistic system development, and human-water system coordination), which proves that it is still facing pressure from both socio-economy sustainable development and water resources protection. Our results provide insight into water resources management in Henan Province and other similar regions.

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Section: Introductionmentioning

confidence: 99%

A Harmony-Based Approach for Assessing and Regulating Human-Water Relationships: A Case Study of Henan Province in China

Zuo

Zhao

et al. 2020

Water

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“…Bedrock is covered by a granitic saprolite whose thickness should vary between 1 and 9 m (El Gh'Mari 1995). This thin superficial layer is expected to host the active aquifer, that is, the main contributor to the permanent stream draining the catchment (Weill et al 2017(Weill et al , 2019Lesparre et al 2020). Forest cover mainly consists in spruces (Piceas abies L., 80 per cent) and beeches (Fagus sylvatica L., 20 per cent).…”

Section: A Multi-instrumented Granitic Catchmentmentioning

confidence: 99%

New insights on water storage dynamics in a mountainous catchment from superconducting gravimetry

Chaffaut

Hinderer

Masson

et al. 2021

Geophysical Journal International

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Summary Assessing the spatial and temporal heterogeneity in subsurface water storage has strong societal and environmental implications, as it is key to assess the water availability for the ecosystem and society. This challenge is especially significant in mountainous areas, where the local population totally depends on springwater as a freshwater resource, while water storage dynamics is complex to evaluate because it exhibits spatiotemporal heterogeneities on all scales as a result of the topography. In this study, we compare the water balance of a headwater granitic catchment (CWB) with water storage changes assessed from in-situ continuous gravity monitoring using an iGrav superconducting gravimeter (SGWSC) located at the summit of the catchment. We show that SGWSC and CWB exhibit a similar annual cycle, although they deviate in the months following winter peak flow events. We investigate the reasons for these discrepancies using a tank model adjusted to the SG signal. This shows that during these events, the effective discharge in the SG footprint area is much lower than the catchment streamflow. We attribute this difference in the drainage term to a lower contribution of the upper part of the catchment to the generation of peak flow, compared to the lower part.

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“…We applied a distributed physically based hydrological model called NIHM (Normally Integrated Hydrological Model, Weill et al, 2017;Lesparre et al, 2020) to the Strengbach catchment to simulate the coupled surface and underground water flows. NIHM provides as output 3D maps of the subsurface water content at requested times, from which we compute gravity temporal changes at the gravity stations using a 3D forward modeling code.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Gravimetry to Map Water Storage Dynamics in a Mountain Catchment

et al. 2022

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In mountain areas, both the ecosystem and the local population highly depend on water availability. However, water storage dynamics in mountains is challenging to assess because it is highly variable both in time and space. This calls for innovative observation methods that can tackle such measurement challenge. Among them, gravimetry is particularly well-suited as it is directly sensitive–in the sense it does not require any petrophysical relationship–to temporal changes in water content occurring at surface or underground at an intermediate spatial scale (i.e., in a radius of 100 m). To provide constrains on water storage changes in a small headwater catchment (Strengbach catchment, France), we implemented a hybrid gravity approach combining in-situ precise continuous gravity monitoring using a superconducting gravimeter, with relative time-lapse gravity made with a portable Scintrex CG5 gravimeter over a network of 16 stations. This paper presents the resulting spatio-temporal changes in gravity and discusses them in terms of spatial heterogeneities of water storage. We interpret the spatio-temporal changes in gravity by means of: (i) a topography model which assumes spatially homogeneous water storage changes within the catchment, (ii) the topographic wetness index, and (iii) for the first time to our knowledge in a mountain context, by means of a physically based distributed hydrological model. This study therefore demonstrates the ability of hybrid gravimetry to assess the water storage dynamics in a mountain hydrosystem and shows that it provides observations not presumed by the applied physically based distributed hydrological model.

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Magnetic resonance sounding measurements as posterior information to condition hydrological model parameters: Application to a hard-rock headwater catchment

Cited by 21 publications

References 97 publications

A Harmony-Based Approach for Assessing and Regulating Human-Water Relationships: A Case Study of Henan Province in China

A Harmony-Based Approach for Assessing and Regulating Human-Water Relationships: A Case Study of Henan Province in China

New insights on water storage dynamics in a mountainous catchment from superconducting gravimetry

Hybrid Gravimetry to Map Water Storage Dynamics in a Mountain Catchment

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