Simulated impacts of climate change on Lake Simcoe water quality

Inland Waters ◽  
2021 ◽  
pp. 1-17
Author(s):  
Hadiseh Bolkhari ◽  
Leon Boegman ◽  
Ralph E. H. Smith
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Lake Simcoe ◽  
Impacts Of Climate Change

Impacts of Climate Change on Water Quality

1996 ◽  
pp. 70-105
Author(s):  
Gerald T. Orlob ◽  
Gabriela K. Meyer ◽  
László Somlyódy ◽  
Danuta Jurak ◽  
Karolý Szesztay
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Impacts Of Climate Change

scholarly journals Climate change adaptation: a pragmatic approach for assessing vulnerability

2018 ◽  
Vol 14 (1) ◽  
pp. 172-177
Author(s):  
M. Carvalho ◽  
B. Martins ◽  
J. P. Coelho ◽  
N. Brôco ◽  
A. K. Ribeiro ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Water Supply ◽  
Climate Change Adaptation ◽  
Climate Extremes ◽  
Mediterranean Area ◽  
Wastewater Management ◽  
Water Sector ◽  
Events Data ◽  
Impacts Of Climate Change

Abstract The impacts of climate change on society are becoming increasingly evident. The water sector is sensitive to variations in climatic patterns as it is expected that major changes in flows will occur, along with increased risks of water quality degradation and flooding. According to published climate scenarios the Mediterranean area will become dryer. As a leading group operating in the water sector in Portugal, AdP decided to develop a strategic plan for climate change adaptation with the aim of establishing a strategy for reducing business vulnerability and increasing systems resilience. In developing the plan, a pragmatic method was adopted for characterizing current vulnerabilities. This was founded on the bottom-up approach and supported with past events data, including evaluating their impacts, and the adaptive capacity of systems and utilities to climate extremes. In water supply, the effects of more severe and frequent extreme events are being felt with respect to water quality and availability, representing as much as 80% of the events studied, whereas, in terms of sanitation, floods account for about 90% of events identified. Globally, 78% and 21% of the measures adopted in water supply and wastewater management, respectively, were effective.

Impacts of climate change and socio-economic scenarios on flow and water quality of the Ganges, Brahmaputra and Meghna (GBM) river systems: low flow and flood statistics

2015 ◽  
Vol 17 (6) ◽  
pp. 1057-1069 ◽  
Author(s):  
P. G. Whitehead ◽  
E. Barbour ◽  
M. N. Futter ◽  
S. Sarkar ◽  
H. Rodda ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Economic Change ◽  
Low Flow ◽  
River Systems ◽  
Area Of Interest ◽  
The Ganges ◽  
Impacts Of Climate Change

The potential impacts of climate change and socio-economic change on flow and water quality in rivers worldwide is a key area of interest.

Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec

2015 ◽  
Vol 95 (4) ◽  
pp. 337-358 ◽  
Author(s):  
C. Gombault ◽  
C. A. Madramootoo ◽  
A. R. Michaud ◽  
I. Beaudin ◽  
M. F. Sottile ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Regional Climate Model ◽  
Climate Model ◽  
Initial Conditions ◽  
Regional Climate ◽  
Fourth Generation ◽  
Nutrient Losses ◽  
River Watershed ◽  
Impacts Of Climate Change

Gombault, C., Madramootoo, C. A., Michaud, A. R., Beaudin, I., Sottile, M. F., Chikhaoui, M. and Ngwa, F. F. 2015. Impacts of climate change on nutrient losses from the Pike River watershed of southern Québec. Can. J. Soil Sci. 95: 337–358. The impacts of climate change on water quality in the Pike River watershed, an important contributor of nutrient loads into the northern arm of Lake Champlain, were simulated for the time horizon 2041–2070. Four water quality scenarios were simulated using a calibrated version of the Soil and Water Assessment Tool (SWAT) customized to Québec agroclimatic conditions. Three of the scenarios were generated using climate data simulated with the Fourth-generation Canadian Regional Climate Model (CRCM4). The fourth scenario was generated using the climate simulated with the Arpege Regional Climate Model. Potential mean climate-induced changes in sediment, phosphorus, and nitrogen yield projected by these scenarios were then analyzed for the 2050 horizon. In addition, the impacts of the different sources of climate projection uncertainty were assessed by comparing climate model initial conditions, and climate model physical structure effects on the hydrochemical projections. Only one climate scenario projected a significant increase in mean annual total phosphorus [10 metrics tons (t) yr−1 or 14%] and total nitrogen (260 t yr−1 or 17%) loads. However, when shorter time spans (seasonal and monthly scales) were considered, several significant changes were detected, especially in winter. Sediment and nutrient loadings, in winter, were predicted to become three to four times higher than current levels. These increases were attributed to a greater vulnerability of soils to erosion in winter due to the decrease in the snowpack, early onset of spring snowmelt, a greater number of rainfall events, and snowmelt episodes caused by higher winter and spring temperatures.

scholarly journals A framework for ensemble modelling of climate change impacts on lakes worldwide: the ISIMIP Lake Sector

2022 ◽  
Author(s):  
Malgorzata Golub ◽  
Wim Thiery ◽  
Rafael Marcé ◽  
Don Pierson ◽  
Inne Vanderkelen ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Thermal Structure ◽  
Climate Change Impacts ◽  
Climate Change Scenarios ◽  
Lake Water Quality ◽  
Intergovernmental Panel ◽  
Simulation Protocol ◽  
Global Grid ◽  
Impacts Of Climate Change

Abstract. Empirical evidence demonstrates that lakes and reservoirs are warming across the globe. Consequently, there is an increased need to project future changes in lake thermal structure and resulting changes in lake biogeochemistry in order to plan for the likely impacts. Previous studies of the impacts of climate change on lakes have often relied on a single model forced with limited scenario-driven projections of future climate for a relatively small number of lakes. As a result, our understanding of the effects of climate change on lakes is fragmentary, based on scattered studies using different data sources and modelling protocols, and mainly focused on individual lakes or lake regions. This has precluded identification of the main impacts of climate change on lakes at global and regional scales and has likely contributed to the lack of lake water quality considerations in policy-relevant documents, such as the Assessment Reports of the Intergovernmental Panel on Climate Change (IPCC). Here, we describe a simulation protocol developed by the Lake Sector of the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) for simulating climate change impacts on lakes using an ensemble of lake models and climate change scenarios. The protocol prescribes lake simulations driven by climate forcing from gridded observations and different Earth system models under various Representative Greenhouse Gas Concentration Pathways, all consistently bias-corrected on a 0.5° × 0.5° global grid. In ISIMIP phase 2, 11 lake models were forced with these data to project the thermal structure of 62 well-studied lakes where data were available for calibration under historical conditions, and for nearly 17,500 lakes using uncalibrated models and forcing data from the global grid where lakes are present. In ISIMIP phase 3, this approach was expanded to consider more lakes, more models, and more processes. The ISIMIP Lake Sector is the largest international effort to project future water temperature, thermal structure, and ice phenology of lakes at local and global scales and paves the way for future simulations of the impacts of climate change on water quality and biogeochemistry in lakes.

Traffic and Climate Change Impacts on Water Quality

2011 ◽  
pp. 147-167 ◽  
Author(s):  
Parvez Mahbub ◽  
Godwin Ayoko ◽  
Prasanna Egodawatta ◽  
Tan Yigitcanlar ◽  
Ashantha Goonetilleke
Keyword(s):  
Climate Change ◽  
Heavy Metals ◽  
Water Quality ◽  
Urban Traffic ◽  
Gold Coast ◽  
Total Petroleum Hydrocarbons ◽  
Sample Collection ◽  
Traffic Characteristics ◽  
Coast Region ◽  
Impacts Of Climate Change

Understanding the impacts of traffic and climate change on water quality helps decision makers to develop better policy and plans for dealing with unsustainable urban and transport development. This chapter presents detailed methodologies developed for sample collection and testing for heavy metals and total petroleum hydrocarbons, as part of a research study to investigate the impacts of climate change and changes to urban traffic characteristics on pollutant build-up and wash-off from urban road surfaces. Cadmium, chromium, nickel, copper, lead, iron, aluminium, manganese and zinc were the target heavy metals, and selected gasoline and diesel range organics were the target total petroleum hydrocarbons for this study. The study sites were selected to encompass the urban traffic characteristics of the Gold Coast region, Australia. An improved sample collection method referred to as ‘the wet and dry vacuum system’ for the pollutant build-up, and an effective wash-off plan to incorporate predicted changes to rainfall characteristics due to climate change, were implemented. The novel approach to sample collection for pollutant build-up helped to maintain the integrity of collection efficiency. The wash-off plan helped to incorporate the predicted impacts of climate change in the Gold Coast region. The robust experimental methods developed will help in field sample collection and chemical testing of different stormwater pollutants in build-up and wash-off. 

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