Analysis of factors affecting the ecological status of the large water bodies on the basis of monitoring and integrated 3D models

Abstract

Abstract. The paper presents water monitoring methods used to determine and predict the ecological status of large water bodies based on calibrated 3D water quality models. State monitoring system of quality of water was discussed and critically reviewed. Mobile measurements technique to collect vast number of measuring points across the large water body during one day cruise to make maps of pollutants distributions was described. Maps of water quality parameters show dynamic changes of spatial distributions of pollutants both in time and along the length of the lake which proves that one point measurements cannot be representative for the large water body. Critical evaluation of calibration principles and accuracy of the most frequently used water quality models, WASP and GEMSS are presented. On the basis of CFD calculations, close correlation between water quality and hydrodynamics in large water bodies regarding the physicochemical aspects and biological production was proved. Neglecting the effect of hydrodynamic on eutrophication process introduce large element of uncertainty in determination of nutrients flow in the large water bodies. An example of scenarios for improving the ecological potential of dam reservoirs to obtain significant reduction of selected nutrients concentration in the lake is discussed.

Advancements and trends in ecological models for lake ecosystems: A bibliometric analysis (2002–2022)

“…Various water bodies such as estuaries, lakes, rivers and coastal waters (Zbiciński & Ziemińska-Stolarska, 2017;Zouiten et al, 2013) hydrodynamics, ECOLAB, and substrate. These models are utilised for the evaluation of eutrophication processes and the prediction of aquatic ecosystem dynamics (Lessin & Raudsepp, 2007).…”

Thermal functioning of a tropical reservoir assessed through three-dimensional modelling and high-frequency monitoring

“…Wu et al (2013) highlighted the need to investigate the influence of short-term hydrodynamics on cyanobacteria in shallow lakes, as the complex cyanobacteria motion in natural water bodies is poorly understood. Thus, understanding hydrodynamics and its interference on water quality bears great importance and needs to be investigated (Li-Kun et al, 2017;Qin et al, 2015;Wu et al, 2015;Zbiciński & Ziemińska-Stolarska, 2017).…”

“…Due to the complex interplay between ecological and hydrodynamic processes in lakes, with high heterogeneity in space and time, three-dimensional models help in better understanding the processes involved (Gong et al, 2016;Soulignac et al, 2017Soulignac et al, , 2018Zbiciński & Ziemińska-Stolarska, 2017). Usually in hydrodynamic three-dimensional models, hydrodynamic processes are represented in a sub-model that provides water temperature and velocity in time and space to an ecological sub-model.…”