IAGLR Day 2: Lowdown on Great Lakes water levels

Posted June 4th, 2013 in Water Resource Economics
IISG’s science writer, Anjanette Riley, is at the 2013 International Association for Great Lakes Research conference at Purdue University. She’ll be blogging from the sessions all week providing an inside look at the newest research on the health of the Great Lakes. Here’s today’s post: 
 
“It was during a presentation today on the impacts of climate change to water levels that I learned a startling fact: Lake Erie’s water level trends have in essence made a 180 degree turn. Historically, water levels in the Great Lakes are at their highest in summer when increased rain and stormwater runoff add more water to the lakes than they lose to evaporation, and levels are lowest in the winter months. In recent decades, though, this trend has been reversing, leaving water levels higher in January than they are in June. 
 
According to data collected by the Great Lakes Environmental Research Lab (GLERL), one of the biggest driving forces behind this shift is increased evaporation over the lake during the hot summer months. 
 
Evaporation is also a primary culprit in Lake Superior’s falling water levels. Here, though, warmer water temperatures that mean less ice in winter are causing greater evaporation across seasons. And less water is entering the lake from rain and stormwater runoff.
The story is different still in Lakes Michigan and Huron, where water levels reached an all-time low in the 1990s and have largely stayed there since. 
 
Of course, there is still some variation in water levels year over year. The water in Lake Erie, in fact, rose by almost 3 feet over the course of just four months in 2011. But these jumps, as the presentation attendees were told, appear to be the exception to the rule. In these three lakes, water levels are trending down.”

IISG Instagram

Join us this Thursday for a seminar on the latest fish biology, ecology, and fisheries science happening in Lake Michigan.

Speaker will include:
-Anna Hill (Purdue) with an update on alewife diet and growth rates in Lake Michigan
-Charlie Roswell (INHS) with an update on Lake Michigan and Calumet River smallmouth bass movement
-Dan Makauska (IL DNR) with an update from the Illinois Department of Natural Resources

Learn more and register at the link in bio.

12 0
Open
Join us this Thursday for a seminar on the latest fish biology, ecology, and fisheries science happening in Lake Michigan. Speaker will include: -Anna Hill (Purdue) with an update on alewife diet and growth rates in Lake Michigan-Charlie Roswell (INHS) with an update on Lake Michigan and Calumet River smallmouth bass movement-Dan Makauska (IL DNR) with an update from the Illinois Department of Natural ResourcesLearn more and register at the link in bio.

Calling all heroes! IISG, @iBioIllinois, and @UrbanaParkDistrict are joining forces to protect the realm from harmful invasive species - will you be brave enough to join us? Attendees will learn about managing and preventing the spread of invasive species through fun and interactive roleplaying activities designed by UIUC researchers and students.

When: April 12, 1-5pm
Where: Anita Purves Nature Center in Urbana, IL

Open to all ages-cosplay encouraged!

10 1
Open
Calling all heroes! IISG, @iBioIllinois, and @UrbanaParkDistrict are joining forces to protect the realm from harmful invasive species - will you be brave enough to join us? Attendees will learn about managing and preventing the spread of invasive species through fun and interactive roleplaying activities designed by UIUC researchers and students.When: April 12, 1-5pmWhere: Anita Purves Nature Center in Urbana, ILOpen to all ages-cosplay encouraged!

Only 2 days left to apply to be an IISG grad student scholar! Graduate student applicants can request up to $10,000 to support research expenses, graduate student stipends, travel, or other activities that help expand the scholarly or societal impact of their research.

One of IISG’s long-term goals is to help build a community of researchers and outreach professionals focused on critically important Lake Michigan issues. The IISG Scholars programs are designed to help build this community by introducing researchers to the issues and the individuals, organizations, and communities that are affected by them.

Applications due April 9th.

Learn more about this opportunity at the link in bio.

7 0
Open
Only 2 days left to apply to be an IISG grad student scholar! Graduate student applicants can request up to $10,000 to support research expenses, graduate student stipends, travel, or other activities that help expand the scholarly or societal impact of their research.One of IISG’s long-term goals is to help build a community of researchers and outreach professionals focused on critically important Lake Michigan issues. The IISG Scholars programs are designed to help build this community by introducing researchers to the issues and the individuals, organizations, and communities that are affected by them.Applications due April 9th.Learn more about this opportunity at the link in bio.
Skip to content