Article
Geosciences, Multidisciplinary
Zulfaqar Sa'adi, Ahmad Zuhdi Ismail, Zulkifli Yusop, Zainab Mohamad Yusof
Summary: This study aimed to map the flood event in Kota Tinggi in 2006/2007 and found the Generalized Extreme Value model to be the best fit for flood simulation. The study also considered the tidal effect in the modeling.
Article
Environmental Sciences
Sean J. Zeiger, Jason A. Hubbart
Summary: The study conducted model performance assessment using observed data and found the potential usefulness of coupling SWAT and HEC-RAS using an integrated modeling approach. Calibration results demonstrated the accuracy of the system under specific conditions, while validation results showed the model's adaptability in different scenarios.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Agronomy
Muhammad Kamran, Wasif Yousaf, R. L. H. L. Rajapakse, Wakas Kareem Awan, Muhammad Riaz, Nayyar Minhaj Asif, Muhammad Umar, Usman Tehsin Shah
Summary: The Punjab Irrigation System, one of the world's largest contiguous systems, faces challenges in canal operations and water shortage issues. To address these problems, a HEC-RAS model has been developed to simulate flow situations, showing a good fit with field data and proving to be an effective tool for canal operation.
IRRIGATION AND DRAINAGE
(2021)
Article
Environmental Sciences
Rolando Ariel Martinez Socas, Michael Alvarez Gonzalez, Yoandy Rodriguez Marin, Carlos Lazaro Castillo-Garcia, Jorge Jimenez, Luciana das Dores de Jesus da Silva, Lisdelys Gonzalez-Rodriguez
Summary: This research developed a hydraulic simulation model for urban rivers in Santa Clara, Cuba. The results showed a high risk of flooding near the control section 2 + 87. The flood limit map could be an important tool for risk assessment, evacuation planning, and flood mitigation strategies.
Article
Environmental Sciences
Mahmoud Omer Mahmoud Awadallah, Ana Juarez, Knut Alfredsen
Summary: This study compares flood inundation maps generated from topographic and bathymetric LiDAR data for 11 sites in Norway, aiming to investigate the accuracy of flood inundations from topographic LiDAR, the relationship between inaccuracies and geomorphic features, and the potential of using corrections to improve accuracy. The results show that the difference between topographic and bathymetric LiDAR models decreases with increasing flood size and is correlated with the amount of embankments. Additionally, the magnitude of inundation error is related to sinuosity, embankment coverage, and bank angle.
Article
Meteorology & Atmospheric Sciences
Thomas Foken
Summary: This article examines temperature gradients and inversions by comparing and analyzing measurement data from the Caspian Sea and Antarctica. In the first case, decoupling tests are used to explain the phenomena, while in the second case, inversions can be explained by counter-gradient fluxes and turbulent Prandtl numbers greater than one.
BOUNDARY-LAYER METEOROLOGY
(2022)
Article
Environmental Sciences
Daniel Philippus, Jordyn M. Wolfand, Reza Abdi, Terri S. Hogue
Summary: This study introduces the development of Raspy-Cal, an automatic HEC-RAS calibration program based on a genetic algorithm and implemented in Python, which can achieve accuracy comparable to manual calibrations in a shorter time. The open-source software enables fast and precise calibration of HEC-RAS models, and could potentially serve as a foundation for future software development.
Article
Green & Sustainable Science & Technology
Joseph Rendall, Ahmad Abu-Heiba, Kyle Gluesenkamp, Kashif Nawaz, William Worek, Ahmed Elatar
Summary: Studies on thermally stratified storage tanks have been conducted for over 50 years to improve thermal storage efficiency and predict outlet temperature accurately, focusing on flow phenomena, instabilities, and numerical models. Mixing in these tanks is driven by Kelvin-Helmholtz and Rayleigh-Taylor instabilities, with the combination of Reynolds and convection numbers used for accurate one-dimensional modeling.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Environmental Sciences
Aqil Tariq, Hong Shu, Alban Kuriqi, Saima Siddiqui, Alexandre S. Gagnon, Linlin Lu, Nguyen Thi Thuy Linh, Quoc Bao Pham
Summary: This paper characterizes the 2014 flood of the Indus River in Pakistan using the HEC-RAS model integrated with GIS and Landsat-8 satellite images. It found that the flood primarily affected crop/agricultural land.
Article
Environmental Sciences
Guillaume G. Chevalier, Florent Locatelli, Eric Masson, Olivier Blanpain
Summary: The canal of Chantilly in France is experiencing sediment accumulation leading to algae proliferation, negatively impacting visitor experience. The study used HEC-RAS software to model sediment accumulation and highlighted areas of high susceptibility.
Article
Environmental Sciences
Elena Sava, Guido Cervone, Alfred Kalyanapu
Summary: This study presents a new data fusion multiscale observation product (MOP) for flood emergencies. The MOP integrates open-source data with remote sensing imagery to provide high-resolution flood inundation maps. The study focuses on the 2015 Memorial Day floods in Dallas and validates the accuracy of the MOP using the HEC-RAS model.
Article
Ecology
R. Quinn Thomas, Ryan P. McClure, Tadhg N. Moore, Whitney M. Woelmer, Carl Boettiger, Renato J. Figueiredo, Robert T. Hensley, Cayelan C. Carey
Summary: The standardized monitoring program of the US National Ecological Observatory Network (NEON) provides an unprecedented opportunity to compare ecosystem predictability. In this study, we developed a near-term, iterative water temperature forecasting system for all six NEON lakes in the conterminous US. Using a process-based hydrodynamic model updated with observations, we generated 1-day-ahead to 35-days-ahead forecasts. The forecast accuracy was positively associated with lake depth and water clarity, while negatively associated with fetch and catchment size.
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Izhar Ahmad, Muhammad Waseem, Ammar Ashraf, Megersa Kebede Leta, Sareer Ahmad, Hira Wahab
Summary: This study conducts an extensive dam breach analysis on the Mangla Dam in Pakistan, employing a hydraulic model and conducting a sensitivity study on breach parameters. The results reveal significant flood risks and potential flooded areas in the downstream vicinity. The study highlights the importance of remote sensing and hydraulic modeling for addressing potential global dam breach catastrophes.
SN APPLIED SCIENCES
(2023)
Article
Environmental Sciences
Saurabh Prajapati, Pouya Sabokruhie, Markus Brinkmann, Karl-Erich Lindenschmidt
Summary: The South Saskatchewan River is a crucial water source for residents, industries, and power plants in Saskatchewan and Canada. Using a 1D modeling approach coupled with the HEC-RAS system and the WASP-TOXI module, this study analyzed the concentrations of copper and nickel at different sites along the river. The model successfully estimated the concentrations in water samples and performed reasonably well for sediment samples, providing valuable insights for future studies on water quality in the Canadian prairies.
Article
Construction & Building Technology
Lu Feng, Yan Wu, Yi Zhao, Ruibin Li, Song Dong, Naiping Gao
Summary: This study investigated the influence of human movement on indoor temperature stratification and proposed concepts to evaluate the robustness of such thermal stratification. The results showed that the degree of temperature destratification and the recovery time of temperature stratification were related to the Richardson number and indoor air change rate.
BUILDING AND ENVIRONMENT
(2023)