The Unexploited Treasures of Hydrological Observations Beyond Streamflow for Catchment Modeling

Wiley Interdisciplinary Reviews Water, Год журнала: 2025, Номер 12(2)

Опубликована: Март 1, 2025

ABSTRACT While measured streamflow is commonly used for hydrological model evaluation and calibration, an increasing amount of data on additional variables available. These have the potential to improve process consistency in modeling consequently predictions under change, as well data‐scarce or ungauged regions. Here, we show how these beyond are currently calibration. We consider storage flux variables, namely snow, soil moisture, groundwater level, terrestrial water storage, evapotranspiration, altimetric level. aim at summarizing state‐of‐the‐art providing guidance use Based a review current literature, summarize observation methods uncertainties available sets, challenges regarding their implementation, benefits consistency. The focus catchment studies with study areas ranging from few km 2 ~500,000 . discuss implementing alternative that related differences spatio‐temporal resolution observations models, variable‐specific features, example, discrepancy between observed simulated variables. further advancements required deal integrate multiple, potentially inconsistent datasets. increased improvement shown by most reviewed often come cost slight decrease performance.

Язык: Английский

Evidence of Groundwater Seepage and Mixing at the Vicinity of a Knickpoint in a Mountain Stream

Geophysical Research Letters, Год журнала: 2024, Номер 51(17)

Опубликована: Сен. 8, 2024

Abstract Streamflow generation and biochemical hotspots are significantly influenced by groundwater contributions distributed along the drainage network. However, identifying geomorphic landscape features that drive groundwater‐surface water interactions remains challenging. In this study, we investigate role of knickpoints in controlling these a mountainous stream Switzerland. We employ combination synoptic sampling environmental tracers, endmember mixing calculations, flow simulations. Our findings reveal substantial seepage concentrated near knickpoint main river stem. Using parsimonious modeling, validate hypothesis topographical shape enhances local discharge rates. quantify approximately 20% total catchment streamflow originates from around knickpoint. These results indicate significant for physicochemical mixing, providing clear method major localized sources generation.

Язык: Английский

Are regional groundwater models suitable for simulating wetlands, rivers and intermittence? The example of the French AquiFR platform

Journal of Hydrology, Год журнала: 2024, Номер 644, С. 132019 - 132019

Опубликована: Сен. 23, 2024

Язык: Английский