David Labat
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View article: Topographic-mediated climate-NPP relationships in subtropical mountain heterogeneity units
Topographic-mediated climate-NPP relationships in subtropical mountain heterogeneity units Open
Mountain ecosystems have experienced significant anthropogenic disturbances, resulting in severe degradation. Due to their intricate topography, climatic zonation, and spatial heterogeneity, the spatial and temporal evolution of net produc…
View article: Multi-Scale Wavelet Analysis of Okavango River discharge patterns at the Mohembo station upstream the Okavango Delta, Botswana
Multi-Scale Wavelet Analysis of Okavango River discharge patterns at the Mohembo station upstream the Okavango Delta, Botswana Open
Analysis of temporal variability of Okavango River discharge time series is important in revealing the hydrological processes and processes in a semi-arid system. The aim of analyzing the discharge patterns was to determine periodicities a…
View article: Simulation of Flow and Transport Processes in Karst Systems: LuKARS 3.0 Unveiled
Simulation of Flow and Transport Processes in Karst Systems: LuKARS 3.0 Unveiled Open
Karst water resources play a vital role in global water supply, providing drinking water to 10–25% of the world´s population. Karst systems exhibit complex hydrological behavior, with fast-flow pathways and highly variable stora…
View article: Improvement of the KarstMod modelling platform for a better assessment of karst groundwater resources
Improvement of the KarstMod modelling platform for a better assessment of karst groundwater resources Open
Hydrological models are fundamental tools for the characterization and management of karst systems. We propose an updated version of KarstMod, software dedicated to lumped-parameter rainfall–discharge modelling of karst aquifers. KarstMod …
View article: Karst Water Resources in a Changing World: Review of Solute Transport Modeling Approaches
Karst Water Resources in a Changing World: Review of Solute Transport Modeling Approaches Open
Karst water resources are valuable freshwater sources for around 10% of the world's population. Nonetheless, anthropogenic impacts and global changes have seriously deteriorated karst water quality and dependent ecosystems. Multiscale kars…
View article: Interdependence Between River Aquifer Groundwater Flow and Temperature–Depth Profiles: Type Curves Based on Pi Theorem and Numerical Simulations
Interdependence Between River Aquifer Groundwater Flow and Temperature–Depth Profiles: Type Curves Based on Pi Theorem and Numerical Simulations Open
The interaction between surface water and groundwater has been extensively studied due to its water management implications and the potential environmental impacts arising from it. Experimental studies and numerical modeling have supported…
View article: Evaluation of precipitation products for small karst catchment hydrological modeling in data-scarce mountainous regions
Evaluation of precipitation products for small karst catchment hydrological modeling in data-scarce mountainous regions Open
International audience
View article: Evaluating Empirical, Field, and Laboratory Approaches for Estimating the Hydraulic Conductivity in the Kabul Aquifer
Evaluating Empirical, Field, and Laboratory Approaches for Estimating the Hydraulic Conductivity in the Kabul Aquifer Open
The evaluation of saturated hydraulic conductivity (Ks) constitutes an invaluable tool for the management and protection of groundwater resources. This study attempted to estimate Ks in the shallow aquifer of Kabul City, Afghanistan, in re…
View article: Multi-decadal groundwater observations reveal surprisingly stable levels in southwestern Europe
Multi-decadal groundwater observations reveal surprisingly stable levels in southwestern Europe Open
Climate change and human activity are leading to water scarcity in southwestern Europe. Groundwater use is thought to be unsustainable in the region, yet regional assessments using measured data are missing. Here, we evaluate long-term tre…
View article: Karst water resources in a changing world: Review of solute transport modelling approaches
Karst water resources in a changing world: Review of solute transport modelling approaches Open
Karst water resources are valuable freshwater sources for around 10 % of the world population. Nonetheless, anthropogenic factors and global changes have been seriously deteriorating the karst water quality and dependent ecosystems. Solute…
View article: Differences in NPP drivers and response mechanisms in typical subtropical mountain ecosystems in China
Differences in NPP drivers and response mechanisms in typical subtropical mountain ecosystems in China Open
Mountain ecosystems (ME) have experienced significant anthropogenic disturbances, resulting in severe degradation. Due to their intricate topography, climatic zonation, and spatial heterogeneity, the spatial and temporal evolution of net p…
View article: A New Index to Assess the Effect of Climate Change on Karst Spring Flow Rate
A New Index to Assess the Effect of Climate Change on Karst Spring Flow Rate Open
Karstic aquifers, because of their conduit system, are susceptible to climate change. Ten karst springs in the Zagros region were selected to investigate the impact of climate change under three CMIP6 scenarios: SSP1-1.9, SSP2-4.5, and SSP…
View article: Effects of Geometry on Artificial Tracer Dispersion in Synthetic Karst Conduit Networks
Effects of Geometry on Artificial Tracer Dispersion in Synthetic Karst Conduit Networks Open
This paper presents the modeling results of tracer test simulations performed using COMSOL Multiphysics (version 6.1), a powerful software for multiphysics simulation. The simulations consist of the propagation of artificial tracers inject…
View article: Comment on hess-2023-17
Comment on hess-2023-17 Open
Abstract. We propose an updated version of KarstMod, an adjustable platform dedicated to lumped parameter rainfall-discharge modeling of karst aquifers. KarstMod provides a modular, user-friendly modeling environment for educational, resea…
View article: Using continuous electrical conductivity measurements to derive major solute concentrations in karst systems
Using continuous electrical conductivity measurements to derive major solute concentrations in karst systems Open
Hydrochemical data of karst springs provide valuable insights into the internal hydrodynamical functioning of karst systems and support model structure identification. However, the collection of high‐frequency time series of major solute s…
View article: Comment on hess-2023-17
Comment on hess-2023-17 Open
Abstract. We propose an updated version of KarstMod, an adjustable platform dedicated to lumped parameter rainfall-discharge modeling of karst aquifers. KarstMod provides a modular, user-friendly modeling environment for educational, resea…
View article: A Review of the Application of the Soil and Water Assessment Tool (SWAT) in Karst Watersheds
A Review of the Application of the Soil and Water Assessment Tool (SWAT) in Karst Watersheds Open
Karst water resources represent a primary source of freshwater supply, accounting for nearly 25% of the global population water needs. Karst aquifers have complex recharge characteristics, storage patterns, and flow dynamics. They also fac…
View article: Improvement of the KarstMod modeling platform for a better assessment of karst groundwater resources
Improvement of the KarstMod modeling platform for a better assessment of karst groundwater resources Open
We propose an updated version of KarstMod, an adjustable platform dedicated to lumped parameter rainfall-discharge modeling of karst aquifers. KarstMod provides a modular, user-friendly modeling environment for educational, research and op…
View article: How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China?
How did blue and green water resource evolute spatially and temporally in the Meijiang River Basin, China? Open
Water is the source of all life on Earth. Blue water and green water are important for water resource evaluation and are also essential for the efficient use of water resources. By constructing a SWAT model to simulate the spatiotemporal e…
View article: Mobile Sources Mixing Model Implementation for a Better Quantification of Hydrochemical Origins in Allogenic Karst Outlets: Application on the Ouysse Karst System
Mobile Sources Mixing Model Implementation for a Better Quantification of Hydrochemical Origins in Allogenic Karst Outlets: Application on the Ouysse Karst System Open
On the edge of sedimentary basins, karst aquifers can be fed by several water sources from both autogenic and allogenic recharge. In some cases, assessing water origins can be hard and cause some difficulties for water resource management.…
View article: Spatial-temporal evolution of vegetation coverage and its relationship with terrain and human factors in the upper reaches of Ganjiang River Basin, China
Spatial-temporal evolution of vegetation coverage and its relationship with terrain and human factors in the upper reaches of Ganjiang River Basin, China Open
Vegetation coverage is an important indicator for evaluating regional environmental quality. Based on MODIS NDVI and DEM data collected for the upper reaches of the Ganjiang River Basin, China, this study used trend analysis, coefficient o…
View article: The Music of Rivers: The Mathematics of Waves Reveals Global Structure and Drivers of Streamflow Regime
The Music of Rivers: The Mathematics of Waves Reveals Global Structure and Drivers of Streamflow Regime Open
River flows change on timescales ranging from minutes to millennia. These variations influence fundamental functions of ecosystems, including biogeochemical fluxes, aquatic habitat, and human society. Efforts to describe temporal variation…
View article: Heterogeneous spatiotemporal streamflow response to large-scale climate indexes in the Eastern Alps
Heterogeneous spatiotemporal streamflow response to large-scale climate indexes in the Eastern Alps Open
Analyzing temporal and spatial variability of river discharge and the impacts of large-scale climate oscillations on hydrological systems are of particular interest in Alpine catchments, which have been proved to be especially sensitive to…
View article: New insights from an enhancement of hydrogeological archives of a French karst watershed over the last 50 years
New insights from an enhancement of hydrogeological archives of a French karst watershed over the last 50 years Open
Karst aquifers, like most hydrological systems, are sensitive to the influence of changes in land use as well as current and future climate change. To be able to identify the effects of these changes, in particular on the variability of gr…
View article: Impact of Withdrawals on Karst Watershed Water Supply
Impact of Withdrawals on Karst Watershed Water Supply Open
Karst systems consist of heterogeneous aquifers characterized by non-linear hydrogeological behavior. This is intrinsically linked to the coexistence of saturated versus unsaturated, open-channel versus closed-conduit flow and laminar vers…
View article: Temporal Scale‐Dependent Sensitivity Analysis for Hydrological Model Parameters Using the Discrete Wavelet Transform and Active Subspaces
Temporal Scale‐Dependent Sensitivity Analysis for Hydrological Model Parameters Using the Discrete Wavelet Transform and Active Subspaces Open
Global sensitivity analysis is an important step in the process of developing and analyzing hydrological models. Measured data of different variables are used to identify the number of sensitive model parameters and to better constrain the…
View article: The Effects of Exchange Flow on the Karst Spring Hydrograph under the Different Flow Regimes: A Synthetic Modeling Approach
The Effects of Exchange Flow on the Karst Spring Hydrograph under the Different Flow Regimes: A Synthetic Modeling Approach Open
In this study, a synthetic modeling approach is proposed to quantify the effect of the amount and direction of the exchange flow on the karstic spring discharge fluctuations under different hydrologic conditions corresponding to high and l…