Sylvain Pasquet
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View article: Integrating Data into Hydrogeophysical Models to Unveil Fluxes and River Interactions: Insights from the Orgeval Critical Zone Observatory
Integrating Data into Hydrogeophysical Models to Unveil Fluxes and River Interactions: Insights from the Orgeval Critical Zone Observatory Open
Quantifying water and heat fluxes at the surface water (SW)–groundwater (GW) interface is crucial for ensuring sustainable water management and quality. However, direct field-based quantification remains challenging due to the dynamic natu…
View article: Groundwater reserves in a mountainous headwater catchment Insights from geophysics performed on the Strengbach Critical Zone Observatory
Groundwater reserves in a mountainous headwater catchment Insights from geophysics performed on the Strengbach Critical Zone Observatory Open
Introduction Modelling the hydrological processes in mountainous areas is particularly challenging due to the strong heterogeneity of the underground medium in terms of hydrological properties, and the lack of groundwater observations. Her…
View article: Oracle-Orgeval, Long-term Research observatory of the critical zone
Oracle-Orgeval, Long-term Research observatory of the critical zone Open
The Orgeval Long-term Research Observatory, part of the French critical zone network (OZCAR RI), is a 104 km² agricultural catchment, located 70 km east of Paris, in France. The Orgeval catchment is representative of intensive agriculture …
View article: Multi‐Scale Geophysical Imaging of a Hydrothermal System in Yellowstone National Park, USA
Multi‐Scale Geophysical Imaging of a Hydrothermal System in Yellowstone National Park, USA Open
Little is known about the local plumbing systems that fuel Yellowstone's famous hot springs, geysers and mud pots. A multi‐method, multi‐scale geophysical investigation was carried out in the Obsidian Pool Thermal Area (OPTA) to: (a) delin…
View article: Integrating Data into the Hydrogeophysical Model: A Case Study of the Orgeval Critical Zone Observatory
Integrating Data into the Hydrogeophysical Model: A Case Study of the Orgeval Critical Zone Observatory Open
Quantifying the water and heat fluxes at the interface between surface water (SW) and groundwater (GW) is a key issue for hydrogeologists to consider for safe yield and good water quality. However, such quantification with field measuremen…
View article: Exploring the landscape heterogeneity and the hydrological diversity in three contrasted observatories of the French critical zone research infrastructure OZCAR
Exploring the landscape heterogeneity and the hydrological diversity in three contrasted observatories of the French critical zone research infrastructure OZCAR Open
The French OZCAR critical zone network offers the opportunity to conduct multi-site studies and to explore the critical zone functioning under contrasted climate, geology, vegetation and land use. In this study, an integrated modeling of t…
View article: Impacts of hydrofacies geometry designed from seismic refraction tomography on estimated hydrogeophysical variables
Impacts of hydrofacies geometry designed from seismic refraction tomography on estimated hydrogeophysical variables Open
Understanding the critical zone processes related to groundwater flows relies on subsurface structure knowledge and its associated parameters. We propose a methodology to draw the patterns of the subsurface critical zone at the catchment s…
View article: Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal Systems - Supplementary Datasets
Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal Systems - Supplementary Datasets Open
These datasets comprise the supplementary datasets found in Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal…
View article: Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal Systems - Supplementary Datasets
Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal Systems - Supplementary Datasets Open
These datasets comprise the supplementary datasets found in Sims et al. A Tale of Two Pools: The Dynamic Influence of Subsurface Geological Processes on the Assembly and Diversification of Thermophilic Microbial Communities in Hydrothermal…
View article: Exploring the Critical Zone Heterogeneity and the Hydrological Diversity Using an Integrated Ecohydrological Model in Three Contrasted Long‐Term Observatories
Exploring the Critical Zone Heterogeneity and the Hydrological Diversity Using an Integrated Ecohydrological Model in Three Contrasted Long‐Term Observatories Open
An integrated ecohydrological modeling approach was deployed in three long‐term critical zone (CZ) observatories of the French CZ network (CZ Observatories—Application and Research) to better understand how the CZ heterogeneity modulates t…
View article: Main water pathways in cultivated clayey calcisols in molassic hills in southwestern France: Toward spatialization of soil waterlogging
Main water pathways in cultivated clayey calcisols in molassic hills in southwestern France: Toward spatialization of soil waterlogging Open
Local waterlogging often occurs on the steep slopes of clayey–calcareous soils in southwestern France, causing nutrients and pollutants transfer to the river bodies and reduced ecosystems services. These soils developed in the Miocene mola…
View article: Seasonal dynamics of marly badlands illustrated by field records of hillslope regolith properties, Draix–Bléone Critical Zone Observatory, South‐East France
Seasonal dynamics of marly badlands illustrated by field records of hillslope regolith properties, Draix–Bléone Critical Zone Observatory, South‐East France Open
Sparsely vegetated badlands are loci of intense erosion that is sufficiently rapid to have observable effects on human timescales. Characterizing and understanding the physical weathering processes in these settings are key to predicting t…
View article: Geophysical data collected at Obsidian Pool Thermal Area, Yellowstone National Park, in 2015-2016
Geophysical data collected at Obsidian Pool Thermal Area, Yellowstone National Park, in 2015-2016 Open
Geophysical data (EMI, GTEM, Seismic, Resistivity) collected over Obsidian Pool Thermal Area, Yellowstone National Park, in 2015 and 2016.
View article: Geophysical data collected at Obsidian Pool Thermal Area, Yellowstone National Park, in 2015-2016
Geophysical data collected at Obsidian Pool Thermal Area, Yellowstone National Park, in 2015-2016 Open
Geophysical data (EMI, GTEM, Seismic, Resistivity) collected over Obsidian Pool Thermal Area, Yellowstone National Park, in 2015 and 2016.
View article: Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term observatories
Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term observatories Open
These files provide useful data and supplementary material associated with the publication 'Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term ob…
View article: Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term observatories
Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term observatories Open
These files provide useful data and supplementary material associated with the publication 'Exploring the critical zone heterogeneity and the hydrological diversity using an integrated ecohydrological model in three contrasted long-term ob…
View article: Impacts of aquifer's geometry estimated from seismic refraction tomography on hydrogeophysical variables
Impacts of aquifer's geometry estimated from seismic refraction tomography on hydrogeophysical variables Open
Understanding the critical zone processes related to groundwater flows relies on subsurface structure knowledge and its associated parameters. We propose a methodology to draw the patterns of the subsurface critical zone at the catchment s…
View article: Editorial: Critical zone geophysics
Editorial: Critical zone geophysics Open
International audience
View article: Catchment‐Scale Architecture of the Deep Critical Zone Revealed by Seismic Imaging
Catchment‐Scale Architecture of the Deep Critical Zone Revealed by Seismic Imaging Open
Weathering and erosion processes are crucial to Critical Zone (CZ) evolution, landscape formation and availability of natural resources. Although many of these processes take place in the deep CZ (∼10–100 m), direct information about its a…
View article: Geophysical imaging of the deep critical zone architecture reveals the complex interplay between hydrological and weathering processes in a volcanic tropical catchment
Geophysical imaging of the deep critical zone architecture reveals the complex interplay between hydrological and weathering processes in a volcanic tropical catchment Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Geophysical Research Letters. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn mo…
View article: New insights on water storage dynamics in a mountainous catchment from superconducting gravimetry
New insights on water storage dynamics in a mountainous catchment from superconducting gravimetry Open
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 especia…
View article: EMI Prospection at Tabbel El-Guesh (Saqqara Plateau, Egypt)
EMI Prospection at Tabbel El-Guesh (Saqqara Plateau, Egypt) Open
– Specific EMI instrumental drift compensation processing.– High-resolution EMI in-phase mapping highlights buried archaeological structures.– EMI quadrature component mostly delineates local geological variability.