Estimations are made from the lakes depths, sizes and flow rates. Superior is fed by 200+ sources, but less so for the downflow lakes. Several are only fed by the uphill lake. This gives better accuracy when making estimates on how long it would take to replace all the water contained or travel time of the water itself.
Here’s another: According to fossil evidence, the Grest Lakes used to flow towards the Pacific, but an object, thought to be a comet, struck Lake Ontario (Charity Shoals) and changed the flow to the Atlantic.
Okay, one more: The Great Lakes are tilting over time. The Lawrentian ice sheet depressed the crust of the earth so much by its weight that it is still rebounding. I believe it is Lake Huron that they can see the tilt level changing about a tenth of an inch a year to the south.
What? How the heck does that make any sense? Also, how would you even track that with high accuracy?
Estimations are made from the lakes depths, sizes and flow rates. Superior is fed by 200+ sources, but less so for the downflow lakes. Several are only fed by the uphill lake. This gives better accuracy when making estimates on how long it would take to replace all the water contained or travel time of the water itself.
Here’s another: According to fossil evidence, the Grest Lakes used to flow towards the Pacific, but an object, thought to be a comet, struck Lake Ontario (Charity Shoals) and changed the flow to the Atlantic.
Okay, one more: The Great Lakes are tilting over time. The Lawrentian ice sheet depressed the crust of the earth so much by its weight that it is still rebounding. I believe it is Lake Huron that they can see the tilt level changing about a tenth of an inch a year to the south.
The Great Lakes are truly a marvel of nature.