Mathew Wells

The horseshoe falls look like a massive wave cresting over and breaking with an incredible roar

How Ice Composition Controls Radiatively Driven Convection Under Lake Ice Numerical simulations show how ice composition influences heating and convection of the under-ice water column in lakes The diffusive boundary and stratified layers near the ice–water interface a...

New winter limnology paper out

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

“How Ice Composition Controls Radiatively Driven Convection Under Lake Ice”

🌊 ❄️

New paper on winter limnology of Lake Ontario now out- “Unique thermal mixing patterns in Lake Ontario revealed by novel year-round observations of thermal stratification”

Open access link at aslopubs.onlinelibrary.wiley.com/doi/full/10....

It’s October and the water is still warm at beach in Toronto with swimming still possible!

Hundreds of canoes ready to go

Large Algoma freight ship in Toronto

A lot of water after thunderstorms

A salmon on Don River inToronto

New winter limnology paper

“Enhancing winter climate simulations of the Great Lakes:
insights from a new coupled lake–ice–atmosphere (CLIAv1)
system on the importance of integrating 3D hydrodynamics
with a regional climate model”

gmd.copernicus.org/articles/18/...

Often September is warm for swimming, but right now the city is reporting 5 °C at the Toronto beaches due to an upwelling of cold water!

www.openwaterdata.com/site/woodbin...

Large ship near Toronto harbour

A whole lot of buoys at RAEOn getting ready for field deployments

The Wetzel limnology videos by SIL are a great resource for teaching

limnology.org/resources/we...

New park at mouth of Don River open, now possible to kayak around Villers island.

Come join the MU Limnology Lab as the new field manager! To apply for this position, please visit the MU web site at hrs.missouri.edu/find-a-job/s... and look for job opening ID 56749.

The Physical Processes in Natural waters (PPNW) meeting was a great success, with ~70 excellent talks and posters.

The PPNW conference is live and going well!

Divergent oxygen trends in ice-covered lakes driven by ice-cover decline and ecological memory | PNAS Dissolved oxygen (DO) is an essential resource in ice-covered lakes, regulating water quality and biodiversity, including the survival of economica...

New winter limnology paper out

doi.org/10.1073/pnas...

Preparing mooring lines to measure the movements of thermocline in lake Simcoe

Lake current monitoring system at Harris water treatment plant in Toronto

Investing in Great Lakes Science is critical for safety and prosperity Scientific research plays a crucial role in supporting the safety and prosperity of tens of millions of people who live, work, and recreate in the Lau…

“Investing in Great Lakes Science is critical for safety and prosperity”

www.sciencedirect.com/science/arti...

Wind drives movements on macroplastics in Toronto Harbour. In some cases the plastics left Toronto harbour travelling over 100 km across Lake Ontario.

Wind drives transport of macroplastics in Toronto Harbour. In some cases the plastics left Toronto harbour travelling over 100 km across Lake Ontario.

Open Access link = www.sciencedirect.com/science/arti...

New paper on plastic waste in Toronto Harbour.

"Wind driven transport of macroplastic debris in a large urban harbour measured by GPS-tracked drifters

Open Access link = www.sciencedirect.com/science/arti...

The video below shows the pathways that floating plastics were driven by the wind.

With the UN Ocean Conference #UNOC3 in its final days, it's worth watching again the Keynote talks of its #OneOceanScienceCongress.
They provide an excellent overview of the issues faced by the ocean, including #fisheries, #carbon and #governance

one-ocean-science-2025.org/programme/li...

Instrument recovered after long winter- hopefully it recorded ice thickness and water currents!

These Toronto public beaches are open for swimming Here's the latest beach water quality report from Toronto Public Health as of June 6 at 7 a.m.

These Toronto public beaches are open for swimming

Red sun at dawn - the smoke from the prairie fires had reached Toronto

Winter thermal structure across the Laurentian Great Lakes The formation of winter stratification and thermal structure in general across the Great Lakes varies in character not just between lakes, but interan…

Winter thermal structure across the Laurentian Great Lakes

#GreatLakes 🧪

www.sciencedirect.com/science/arti...

Our under-ice buoy was successfully recovered from a long deployment in lake Simcoe- soon we’ll know how changes in ice thickness influenced the phytoplankton and dissolved oxygen levels last winter!

❄️🧊🌊

A picture from 1960s of drouges used to measure water currents in Lake Ontario.