Water Level

[noelH]

This past May the water level on L. Superior was on the low side.  Lowest I can remember of any Spring over the past 7.  Bit of rain has fallen locally since then.  Old "normal" Spring precipitation.  Last couple years have been way too dry.  Noticed that water level at the ramp is back to almost normal.  Guessing a significant amount of rain has drained into the Lake from most regions of the L. Superior drainage.

Lake Superior Now, a Detroit Public Television program IIRC noted to raise L. Superior one inch requires ?1.5 trillion gallons.  Sort of makes sense. 1 gal will cover ~1.5 square feet with an inch of water. Lake Superior is ~32,000 square miles of surface area.

Remember a few seasons ago all the erosion from too high water levels. Normal drainage downhill to the other Great Lakes, no ice winter evaporation, low annual precipitation..... All change things relatively fast.  Maybe something to consider regarding ocean coastline water levels?

Next rambling thought this AM. How many gallons of water is needed to raise the Oceans of the world 1"?  Beyond my comprehension.  Just imagining what a trillion gallons looks, feels like is mind bending. There was an interesting article in Nature about the Earth's rotation slowing down a fraction of a second every x number of years due to the additional mass of water at the equatorial latitudes.  Another mind bending bit of info. 

[Noemi - Ensenada 20]

It's interesting how much coastlines can change.  Yet human beings WANT to live right on the water.  We are drawn to it, even when we know that it could be dangerous.