Hurricanes Affect the Sediment and Environment in Lake Okeechobee DOI

Kang‐Ren Jin,

Ni‐Bin Chang,

Zhen‐Gang Ji

et al.

Critical Reviews in Environmental Science and Technology, Journal Year: 2011, Volume and Issue: 41(sup1), P. 382 - 394

Published: Feb. 17, 2011

Three hurricanes (Frances and Jeanne in 2004 Wilma 2005) passed over Lake Okeechobee causing a number of changes its sediment environment. The unconsolidated atop the mud sediments central region lake became thicker due to settling deposition resuspended after passed. increased layer was more easily resuspended, resulted sustained higher solids nutrient concentrations lower light transparency water column for than 4 years Hurricanes Frances disturbed consolidated depth 7–15 cm from surface while Hurricane extended disturbance 25 cm. Concentrations total suspended (TSS) four sixfold hurricanes. high concentration TSS continuous maintained 2–4 times normal situation until present. contributed decrease submerged aquatic vegetation (SAV) density 4–34 g dw/m2 0.1–4 primarily through scouring. SAV recovery very slow increasing turbidity reduced transparency.

Language: Английский

Numerical simulation of the residence time distribution dynamics of a restored agricultural wetland under varying environmental conditions DOI Creative Commons
David I. S. Green, William G. Crumpton

Water Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

This work demonstrates the development, calibration, and use of three-dimensional Environmental Fluid Dynamics Code (EFDC) hydrodynamic mass transport model to simulate mixing patterns study environmental controls on residence time distributions a 1.3 ha agricultural wetland in central Iowa. Incorporating time-varying flow boundary conditions atmospheric forcing, was calibrated against observed state variables, including water temperatures, basin hydraulic characteristics, dye concentrations monitored at outlet for six tracer studies conducted under varying when submersed aquatic vegetation mostly absent from basin. EFDC reasonably reproduced internal hydraulics, dynamics, with mean absolute relative errors ranging 0.02 16.3%. Sensitivity analyses suggest that wind shear exerts greatest control modeled, by extension observed, RTD this system, primarily affecting measures short-circuiting and, lesser degree, basin-wide mixing, particularly absence thermal forcing. Thermal forcing found significantly influence during warmer periods, effect being highly influenced wind. Transient flows nominally most save median times.

Language: Английский

Citations

0

Modeling water quality and cyanobacteria blooms in Lake Okeechobee: II. Dynamics of diurnal cycles and impacts of cyanobacteria diel vertical migration DOI
Mingshun Jiang, Jennifer Cannizzaro, Malcolm McFarland

et al.

Ecological Modelling, Journal Year: 2025, Volume and Issue: 505, P. 111107 - 111107

Published: April 9, 2025

Language: Английский

Citations

0

Predicting lake water quality responses to load reduction: a three-dimensional modeling approach for total maximum daily load DOI
Zhen Wang, Rui Zou, Xuan Zhu

et al.

International Journal of Environmental Science and Technology, Journal Year: 2013, Volume and Issue: 11(2), P. 423 - 436

Published: March 25, 2013

Language: Английский

Citations

42

Simulation-based risk analysis of water pollution accidents combining multi-stressors and multi-receptors in a coastal watershed DOI
Lei Dong, Jing Liu, Xi Du

et al.

Ecological Indicators, Journal Year: 2017, Volume and Issue: 92, P. 161 - 170

Published: June 27, 2017

Language: Английский

Citations

33

Identification of optimal water transfer schemes for restoration of a eutrophic lake: An integrated simulation-optimization method DOI
Chao Dai, Qingkun Tan, W.T. Lu

et al.

Ecological Engineering, Journal Year: 2016, Volume and Issue: 95, P. 409 - 421

Published: July 4, 2016

Language: Английский

Citations

31

Aquatic eutrophication indicators in LCA: Methodological challenges illustrated using a case study in New Zealand DOI
Sandra Payen, S.F. Ledgard

Journal of Cleaner Production, Journal Year: 2017, Volume and Issue: 168, P. 1463 - 1472

Published: Sept. 7, 2017

Language: Английский

Citations

31

Modeling nutrients, oxygen and critical phosphorus loading in a shallow reservoir in China with a coupled water quality – Macrophytes model DOI
Chen Zhang,

Hanan Liu,

Xueping Gao

et al.

Ecological Indicators, Journal Year: 2016, Volume and Issue: 66, P. 212 - 219

Published: Feb. 8, 2016

Language: Английский

Citations

30

An integrated fuzzy-based advanced eutrophication simulation model to develop the best management scenarios for a river basin DOI

Srinivas Rallapalli,

Ajit Pratap Singh

Environmental Science and Pollution Research, Journal Year: 2018, Volume and Issue: 25(9), P. 9012 - 9039

Published: Jan. 14, 2018

Language: Английский

Citations

28

Impacts of wind waves on sediment transport in a large, shallow lake DOI

Zhen‐Gang Ji,

Kang‐Ren Jin

Lakes & Reservoirs Science Policy and Management for Sustainable Use, Journal Year: 2014, Volume and Issue: 19(2), P. 118 - 129

Published: June 1, 2014

Abstract Lake Okeechobee is a large, shallow subtropical lake, located in south Florida. Over the last several decades, has experienced accelerated eutrophication due to excessive phosphorus loads from agricultural run‐off. Recycling of bottom sediments through resuspension critical addressing lake and for water quality management. The present study investigates impacts wind waves on sediment transport Okeechobee, using measured data Environmental Model ( LOEM ). was fully calibrated verified with more than 10 years previous studies. Analysis indicates significant wave height (SWH) suspended concentration are closely correlated speed lake. nonlinear interaction high‐frequency relatively low‐frequency currents boundary layer plays key role deposition/resuspension. Without considering effects waves, shear stress can be greatly underestimated. spatial variations variables modelling, including SWH, depth, orbital velocity, current concentration, discussed. In general, near‐bottom velocity (and associated stress) greater or same order magnitude as near‐bed this system. Although zones were described studies, few published papers discussed its formation mechanisms. findings include that multiyear averaged wind‐wave effect forming patterns zones. results currently being used management developing strategies reducing

Language: Английский

Citations

27

Time scales of external loading and spatial heterogeneity in nutrients-chlorophyll a response: Implication on eutrophication control in a large shallow lake DOI
Tao Xu, Tao Yang, Manling Xiong

et al.

Ecological Engineering, Journal Year: 2019, Volume and Issue: 142, P. 105636 - 105636

Published: Nov. 6, 2019

Language: Английский

Citations

23