Protecting the lake's natural assets and values through vigilance and science.
The webinar on groundwater presented by Dr. Brian Smerdon of Alberta Geological Survey is posted on the https://alms.ca website: https://youtu.be/fPr27zPKgoQ The groundwater section starts at about 53 mm 13 ss. His presentation was based in part on this 2018 final Sylvan Lake Subbasin Groundwater modeling report by J.E. Liggett and A. Singh. The report graphics …
Continue reading "Groundwater: A Hidden Part of the Lake Ecosystem"
Data to July 4, 2020 Precipitation measured at the Alberta Agriculture weather station at Hespero Lake level on Jul 4 was 936.85 metres above sea level.
Here is 100 years of Sylvan Lake water level data: Most of the data up to 2014 are in the Environment Canada HYDAT database that can now only be accessed offline with great difficulty. The whole HYDAT database must be downloaded then searched using Microsoft Access as a viewer. The 2010-2019 data are from other …
Bob Dylan must have been thinking about Sylvan Lake when he wrote the lyrics to the song “Blowin’ in the Wind”. Because that line answers the question: “Where did all the Sylvan Lake water go?” A lot of it, about 20 million tonnes per year, 4.8% of the lake volume, just evaporated and blew away …
The two main Sylvan Lake tributaries are flowing and carrying the early-season load of water and nutrients into the lake. Here is the video evidence: Golf Course Creek 2020 Spring Runoff on 2020-04-21 From the SLG&CC irrigation pond to Marina Bay. Flow at the Marina Bay Culverts on 2020-04-20 Northwest Creek, west of Sunbreaker Cove, …
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See the lake level history as monitored by Environment Canada at the station in the WatersEdge Marina harbour. The data may be viewed at this website too: https://rivers.alberta.ca/ The lake level dropped about 0.18 metres over the lake area of about 42 square kilometres. That is a volume decrease of 7.6 million cubic metres, although …
This slideshow presents three decades of water quality history in pictures. It shows the concentrations of the dissolved and suspended inorganic ions and some organics that are sampled and analyzed in laboratories using standard protocols. Concentrations range over six orders of magnitude, from the key nutrients nitrogen and phosphorus that are measured and reported …
Continue reading "Water Composition and Water Quality of Sylvan Lake"
The official Alberta Agriculture weather data recorded at Hespero west of the Sylvan Lake watershed is a reasonable indicator of wind on the lake. The following slideshow compiles and presents about 6500 hourly measurements of wind speed and direction for the period January to September 2019. It includes an expanded record of the two days …
Continue reading "Wind Speed History of Sylvan Lake in 2019"
https://trca.ca/news/new-tool-stormwater-management-planning-design-practices/ Traditional stormwater practices were designed to convey water as quickly as possible to the outlet, either through natural or built water courses, to prevent flooding especially during larger storms. However, urbanization intensified upstream quickly and widely with increased impervious surfaces and sources of pollution, to a point where the additional water volume and pollution load could not be managed …
Continue reading "A new tool for stormwater management planning and design practices"
