Results 31 to 40 of about 231 (137)

Changes in and Modelling of Hydrological Process for a Semi-Arid Catchment in the Context of Human Disturbance

open access: yesFrontiers in Earth Science, 2021
Hydrological modelling is of critical importance to flood control. However, flood forecasting in semi-arid region is a great challenge to hydrologists, particularly in a changing environment. Taking the Zhulong River catchment located in north China as a
Yue Liu   +12 more
doaj   +1 more source

Comparison of hydrological model ensemble forecasting based on multiple members and ensemble methods

open access: yesOpen Geosciences, 2021
Ensemble hydrologic forecasting which takes advantages of multiple hydrologic models has made much contribution to water resource management. In this study, four hydrological models (the Xin’anjiang model (XAJ), Simhyd, GR4J, and artificial neural ...
Wang Jie   +6 more
doaj   +1 more source

Comparative performance of regionalization methods for model parameterization in ungauged Himalayan watersheds

open access: yesJournal of Hydrology: Regional Studies, 2023
Study region: The study region is 23 different watersheds across Nepal. Study focus: This study aims at assessing the strengths and weaknesses of widely used regionalization methods for simulating daily hydrograph and flow duration curve in a ...
Nischal Karki   +5 more
doaj   +1 more source

Regionalization of hydrological models for flow estimation in ungauged catchments in Ireland

open access: yesJournal of Hydrology: Regional Studies, 2021
Study Region: The study area consists of 44 catchments across Ireland. Study Focus: We regionalize two hydrological models (GR4J and GR6J) to produce continuous discharge simulations and compare performance in simulating high, median and low flow ...
Saeed Golian   +2 more
doaj   +1 more source

Tutorial for using hydroPSO to calibrate the GR4J model

open access: yes, 2020
This tutorial shows how to use the hydroPSO R package (version >= 0.6-0) to calibrate and verify the GR4J hydrological model included in the airGR package, and to perform a basic uncertainty analysis.
openaire   +5 more sources

Why Does Runoff From Some Catchments Not Recover After a Prolonged Drought?

open access: yesHydrological Processes, Volume 40, Issue 7, July 2026.
This study investigates the hydrological non‐stationarity in the Victorian state of Australia, using water balance analysis and a modelling experiment with observed hydroclimate and remotely sensed data over 1982–2020 from 120 catchments. The hydrological non‐stationarity is much more significant in North‐West Victoria.
Zaved Khan   +3 more
wiley   +1 more source

Improving Daily Runoff Prediction Using a Novel Two‐Step Post‐Processing Method of Frequency Distribution Curve Correction

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Offsets and distributional discrepancies between runoff simulations and observations were two important error sources which remarkably degraded runoff prediction performance of hydrological models. However, traditional single post‐processing correction methods were difficult to reduce these two error sources simultaneously due to their ...
Xiaochuan Luo   +7 more
wiley   +1 more source

Can State‐Dependant Residual Modeling Improve Legacy Hydrological Model Simulations?

open access: yesWater Resources Research, Volume 62, Issue 7, July 2026.
Abstract Traditional residual post‐processing methods have demonstrated substantial improvements in simulated hydrological response; however, they typically aggregate multiple sources of uncertainty into a single lumped residual and apply uniform statistical treatment across all hydrologic conditions.
Muhammad Hammad   +2 more
wiley   +1 more source

Water and carbon balances in a hemi-boreal forest

open access: yesMetsanduslikud Uurimused, 2023
The carbon and water fluxes and their inter-relations are key aspects of ecosystem dynamics. In this study, regionalization was used in transferring parameters from the GR4J-Cemaneige model calibrated in Reola hydrographic basin to predict daily flows in
Mercuri Emílio Graciliano Ferreira   +2 more
doaj   +1 more source

Assessment of the suitability of rainfall–runoff models by coupling performance statistics and sensitivity analysis

open access: yesHydrology Research, 2017
Conceptual rainfall–runoff models are widely used to understand the hydrologic responses of catchments of interest. Modellers calculate the model performance statistics for the calibration and validation periods to investigate whether these models serve ...
Mun-Ju Shin, Chung-Soo Kim
doaj   +1 more source

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