Mathew Wells
@efdtoronto.bsky.social
Prof. University of Toronto Scarborough
🌊 ❄️ 💧 🐟
Great Lakes - Limnology - Fluid Dynamics
Sediment Transport - Ice - Fish
🌊 ❄️ 💧 🐟
Great Lakes - Limnology - Fluid Dynamics
Sediment Transport - Ice - Fish
Join us for an exciting session on physical limnology at the ASLO-SIL Joint Meeting, May 12–16, 2026, in Montréal, Canada
www.aslo.org/aslo-sil-2026/
We are convening Special Session SS004: Physical Limnology—Dynamics, Drivers, and Change in Inland Waters.
🌊
www.aslo.org/aslo-sil-2026/
We are convening Special Session SS004: Physical Limnology—Dynamics, Drivers, and Change in Inland Waters.
🌊
November 14, 2025 at 1:36 PM
Join us for an exciting session on physical limnology at the ASLO-SIL Joint Meeting, May 12–16, 2026, in Montréal, Canada
www.aslo.org/aslo-sil-2026/
We are convening Special Session SS004: Physical Limnology—Dynamics, Drivers, and Change in Inland Waters.
🌊
www.aslo.org/aslo-sil-2026/
We are convening Special Session SS004: Physical Limnology—Dynamics, Drivers, and Change in Inland Waters.
🌊
The Halifax wave 🌊
November 9, 2025 at 7:19 PM
The Halifax wave 🌊
Science communication sign in Halifax with pictures of secchi disk
November 9, 2025 at 8:27 AM
Science communication sign in Halifax with pictures of secchi disk
Nibi =water
Street sign to waters of Toronto
Street sign to waters of Toronto
November 1, 2025 at 1:39 PM
Nibi =water
Street sign to waters of Toronto
Street sign to waters of Toronto
The horseshoe falls look like a massive wave cresting over and breaking with an incredible roar
October 19, 2025 at 8:25 PM
The horseshoe falls look like a massive wave cresting over and breaking with an incredible roar
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....
Open access link at aslopubs.onlinelibrary.wiley.com/doi/full/10....
October 6, 2025 at 4:14 PM
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....
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!
October 5, 2025 at 3:58 PM
It’s October and the water is still warm at beach in Toronto with swimming still possible!
Hundreds of canoes ready to go
September 27, 2025 at 12:33 PM
Hundreds of canoes ready to go
Large Algoma freight ship in Toronto
September 27, 2025 at 12:09 PM
Large Algoma freight ship in Toronto
A salmon on Don River inToronto
September 22, 2025 at 10:10 PM
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/...
“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/...
September 8, 2025 at 9:44 PM
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/...
“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...
www.openwaterdata.com/site/woodbin...
September 1, 2025 at 9:35 AM
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...
www.openwaterdata.com/site/woodbin...
Large ship near Toronto harbour
August 31, 2025 at 11:25 AM
Large ship near Toronto harbour
A whole lot of buoys at RAEOn getting ready for field deployments
August 28, 2025 at 9:21 PM
A whole lot of buoys at RAEOn getting ready for field deployments
New park at mouth of Don River open, now possible to kayak around Villers island.
July 19, 2025 at 11:59 AM
New park at mouth of Don River open, now possible to kayak around Villers island.
The Physical Processes in Natural waters (PPNW) meeting was a great success, with ~70 excellent talks and posters.
July 11, 2025 at 6:10 PM
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!
July 9, 2025 at 10:05 AM
The PPNW conference is live and going well!
Preparing mooring lines to measure the movements of thermocline in lake Simcoe
June 27, 2025 at 3:42 PM
Preparing mooring lines to measure the movements of thermocline in lake Simcoe
Lake current monitoring system at Harris water treatment plant in Toronto
June 24, 2025 at 9:51 AM
Lake current monitoring system at Harris water treatment plant in Toronto
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...
Open Access link = www.sciencedirect.com/science/arti...
June 19, 2025 at 6:55 PM
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...
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.
"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.
June 19, 2025 at 6:55 PM
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.
"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.
Instrument recovered after long winter- hopefully it recorded ice thickness and water currents!
June 12, 2025 at 10:19 AM
Instrument recovered after long winter- hopefully it recorded ice thickness and water currents!
Red sun at dawn - the smoke from the prairie fires had reached Toronto
June 3, 2025 at 10:46 AM
Red sun at dawn - the smoke from the prairie fires had reached Toronto
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!
❄️🧊🌊
❄️🧊🌊
May 30, 2025 at 8:48 PM
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.
May 28, 2025 at 7:31 PM
A picture from 1960s of drouges used to measure water currents in Lake Ontario.