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Jeonghoon Lee, Jeonghyeon Choi, Jiyu Seo, Jeongeun Won and Sangdan Kim
In the context of hydrological model calibration, observational data play a central role in refining and evaluating model performance and uncertainty. Among the critical factors, the length of the data records and the associated climatic conditions are p...
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Jean Bergeron, Robert Leconte, Mélanie Trudel and Sepehr Farhoodi
An important step when using some data assimilation methods, such as the ensemble Kalman filter and its variants, is to calibrate its parameters. Also called hyper-parameters, these include the model and observation errors, which have previously been sho...
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Chounghyun Seong, Younggu Her and Brian L. Benham
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Chounghyun Seong, Younggu Her and Brian L. Benham
Hydrologic Simulation Program-Fortran (HSPF) model calibration is typically done manually due to the lack of an automated calibration tool as well as the difficulty of balancing objective functions to be considered. This paper discusses the development a...
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Margaret W. Gitau and Indrajeet Chaubey
There has been a steady shift towards modeling and model-based approaches as primary methods of assessing watershed response to hydrologic inputs and land management, and of quantifying watershed-wide best management practice (BMP) effectiveness. Watersh...
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Majid Taie Semiromi, Sorush Omidvar and Bahareh Kamali
Robust calibration of hydrologic models is critical for simulating water resource components; however, the time-consuming process of calibration sometimes impedes the accurate parameters? estimation. The present study compares the performance of two appr...
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Narayanan Kannan, Chinnasamy Santhi, Michael J. White, Sushant Mehan, Jeffrey G. Arnold and Philip W. Gassman
This study is a part of the Conservation Effects Assessment Project (CEAP) aimed to quantify the environmental and economic benefits of conservation practices implemented in the cultivated cropland throughout the United States. The Soil and Water Assessm...
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Thomas Poméon, Bernd Diekkrüger and Rohini Kumar
The prediction of freshwater resources remains a challenging task in West Africa, where the decline of in situ measurements has a detrimental effect on the quality of estimates. In this study, we establish a series of modeling routines for the grid-based...
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Anwar A. Adem, Yihun T. Dile, Abeyou W. Worqlul, Essayas K. Ayana, Seifu A. Tilahun and Tammo S. Steenhuis
Comprehensive spatially referenced soil data are a crucial input in predicting biophysical and hydrological landscape processes. In most developing countries, these detailed soil data are not yet available. The objective of this study was, therefore, to ...
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Ratino Sith and Kazuo Nadaoka
In this study, two hydrologic models, the Gridded Surface Subsurface Hydrologic Analysis (GSSHA) and the Soil and Water Assessment Tool (SWAT), were applied to predict stream flow and suspended sediment concentration (SSC) in a small agricultural watersh...
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Randika K. Makumbura, Miyuru B. Gunathilake, Jayanga T. Samarasinghe, Remegio Confesor, Nitin Muttil and Upaka Rathnayake
Hydrologic models are indispensable tools for water resource planning and management. Accurate model predictions are critical for better water resource development and management decisions. Single-site model calibration and calibrating a watershed model ...
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Ji-Hong Jeon, Kyoung Jae Lim and Bernard A. Engel
Estimating surface runoff for ungauged watershed is an important issue. The Soil Conservation Service Curve Number (SCS-CN) method developed from long-term experimental data is widely used to estimate surface runoff from gaged or ungauged watersheds. Man...
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Juan Carlos Jaimes-Correa, Francisco Muñoz-Arriola and Shannon Bartelt-Hunt
Changing water supplies and demands, inherent to climate fluctuations and human activities, are pushing for a paradigm shift in water management worldwide. The occurrence of extreme hydrometeorological and climate events such as extended wet periods and ...
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Ahmed Naseh Ahmed Hamdan, Suhad Almuktar and Miklas Scholz
It has become necessary to estimate the quantities of runoff by knowing the amount of rainfall to calculate the required quantities of water storage in reservoirs and to determine the likelihood of flooding. The present study deals with the development o...
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Wendso Awa Agathe Ouédraogo, James Messo Raude and John Mwangi Gathenya
The Mkurumudzi River originates in the Shimba hills and runs through Kwale County on the Kenyan Coast. Study on this river has been informed by the many economic activities that the river supports, which include sugarcane plantations, mining, tourism and...
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Markus C. Casper, Zoé Salm, Oliver Gronz, Christopher Hutengs, Hadis Mohajerani and Michael Vohland
The land-use-specific calibration of evapotranspiration parameters in hydrologic modeling is challenging due to the lack of appropriate reference data. We present a MODIS-based calibration approach of vegetation-related evaporation parameters for two mes...
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Seyed Ghaneeizad, Athanasios (Thanos) Papanicolaou, Benjamin Abban, Christopher Wilson, Christos Giannopoulos, Dayton Lambert, Forbes Walker and Shawn Hawkins
Previous land surface modeling efforts to predict and understand water budgets in the U.S. Southeast for soil water management have struggled to characterize parts of the region due to an extensive presence of fragipan soils for which current calibration...
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Supria Paul, Michaela A. Cashman, Katelyn Szura, Soni M. Pradhanang
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Nonpoint source nitrogen pollution is difficult to effectively model in groundwater systems. This study aims to elucidate anthropogenic nonpoint source pollution discharging into Potowomut Pond and ultimately Narragansett Bay. Hydrologic modeling with So...
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Supria Paul, Michaela A. Cashman, Katelyn Szura and Soni M. Pradhanang
Nonpoint source nitrogen pollution is difficult to effectively model in groundwater systems. This study aims to elucidate anthropogenic nonpoint source pollution discharging into Potowomut Pond and ultimately Narragansett Bay. Hydrologic modeling with So...
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Adina Moraru, Michal Pavlícek, Oddbjørn Bruland and Nils Rüther
Flash floods can cause great geomorphological changes in ephemeral fluvial systems and result in particularly severe damages for the unprepared population exposed to it. The flash flood in the Storelva river in Utvik (western Norway) on 24 July 2017 was ...
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