What's draining two Great Lakes?, page 1
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Topic started on 12-3-2006 @ 02:13 PM by loam
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What's draining two Great Lakes? Sinking levels of Huron and Michigan, rising Erie concern U.S. Army Corps, environmentalists.

The U.S. Army Corps of Engineers is disputing some key findings of a controversial report that claims the levels of lakes Michigan and Huron have been on a permanent decline for at least 44 years.

But the Corps is also calling for a detailed study of the apparent drop in those two lakes -- which scientists consider one lake system -- and a corresponding rise in Lake Erie over time.

Environmentalists are sounding alarms, and the International Joint Commission, a U.S.-Canadian governmental group charged with stewardship of the Great Lakes, also is pledging a thorough review.

Michigan and Huron have been steadily draining since a Corps of Engineers dredging project deepened the St. Clair River in 1962 -- and perhaps over a much longer period. So claimed the authors of the 2005 report.

More...



A great article....Surprising, too!


[edit on 12-3-2006 by loam]


reply posted on 12-3-2006 @ 02:38 PM by Tranceopticalinclined
Its the Mississippi River that the Great Lakes are begining to drain from, I Dunno Why or how, but i do know that in this Book on Edgar Cayce "Modern Prophet" one of his readings was about the Great Lakes Draining Via the Mississippi River an that having to do with some major earth changes and so forth, I checked the Drainage routes an Bam its certainly possible,


"Watch New York, Connecticut and the like. Many portions of the east coast will be disturbed, as well as many portions of the west coast, as well as the central portion of the United States. Los Angeles, San Francisco, most of all these will be among those that will be destroyed before New York, or New York City itself, will in the main disappear. This will be another generation though, here; while the southern portions of Carolina, Georgia, these will disappear. This will be much sooner. The waters of the Great Lakes will empty into the Gulf of Mexico."

www.crystalinks.com...

this is the best link of the scripted part of the book i have as i cant find it anywhere else that discribes it further as the Mississippi being the channel as to which the great lakes drain from.


Drainage Map of the Mississippi River and its Tributaries. Some Facts and Figures

www.greatriver.com...


Great Lakes Basin map

atlas.gc.ca...


"Everyone get ready becuz this an our favorite other events are Flagging a Huge changing / Turning Point in Everything as we know it. " - Shane

[edit on 12-3-2006 by Tranceopticalinclined]

[edit on 12-3-2006 by Tranceopticalinclined]



reply posted on 12-3-2006 @ 03:09 PM by KhieuSamphan
Seemingly, a similar situation exists for Lake Chad -


In the 1960s it had an area of more than 26,000 km², making it the fourth largest lake in Africa. By 2000 its extent had fallen to less than 1,500 km². This is due to reduced rainfall combined with greatly increased amounts of irrigation water being drawn from the lake and the rivers which feed it, the largest being the Chari/Logon system, which originates in the mountains of the Central African Republic. It seems likely that the lake will shrink further and perhaps even disappear altogether in the course of the 21st century.

Taken from Wikipedia.


However, given the local meteorological conditions, it's average depth of 1.5 metres and the proximity of such a large population without access to a more advanced water supply infrastructure, the depletion of Lake Chad is unsuprising really.

Loam, could groundwater extraction in a location(s) far removed from the Great Lakes area contribute to these level reductions, do you think? Or are aquifers generlly held to be individual, closed systems...I think I may have read that somewhere.

Having said that, the Earth is a dynamic old soul, so these things may be pefectly natural!!!!


reply posted on 19-9-2006 @ 08:57 AM by masqua
I'm beside Lake Huron and the water levels here are definitely below what has been seen since the mid-sixties. The current thinking is that it is the result of milder dryer winters and summers.

But, compared to 1926 and 1964, the levels are relatively high, if you decide to click on the link below and review the graph for Lake Huron...


chswww.bur.dfo.ca...

Fluctuations in water levels in non-tidal areas are the result of several natural factors and may also be influenced by human activities. These factors operate on a time-scale that varies from hours to years. The levels of the Great Lakes depend on their storage capacity, outflow characteristics of the outlet channels, operating procedures of the regulatory structures, and the amount of water supply received by each lake. The primary natural factors affecting lake levels include precipitation on the lakes, run-off from the drainage basin, evaporation from the lake surface, inflow from upstream lakes, and outflow to the downstream lakes. Man-made factors include diversions into or out of the basin, consumption of water, dredging of outlet channels and the regulation of outflows.



reply posted on 19-9-2006 @ 10:37 AM by masqua
Originally posted by LordBaskettIV
Interesting, thanks for the link. This may be a wierd question, but have there been any new bottled water companys in your area lately( such as dasani,ect)? It seems that there may be a slight connection on why some lakes seem to be lower while others(such as Erie) have had little change.


Good point, LordBaskettIV, we do have a company near us which draws from the aquifer, the underground water systems which are, imo, a seperate source from groundwater (to a degree, considering that rainfall does add to it).

But the company in the town of Teeswater is tiny in comparison to others drawing from springs further away. Overall, the amount of water being taken from this source is immense, as this 8 year old study confirms;

The fastest growing segment of the beverage industry is in the individual-size plastic bottles of water. Industry statistics for 1998 show sales of 996 billion gallons of water via these little bottles, representing 25 per cent of the total market, and reflecting an annual growth rate of 25 to 30 per cent. In dollars, bottled water sales in North America posted revenues of nearly $5 billion in 1998 -- not bad for an industry that was an infant 20 years ago.

LINK


...and that was 8 years ago. The strange thing is the lack of direct information available on the internet. A few PDF files and governmental hansard compilations which are so voluble it takes skilled skimming to pick out relevant bits.

What the contemporary figures would be for drawing water and selling it at a 'buck a bottle' (or more), I have no idea, but I'd like to find out.



~~~~~~~~~~~~~~~~~
Edit to add....

by V Kaminski

I've seen lower Lake levels in Lake Huron back in the mid-seventies but not by much...


Check out the tables in the link provided in my post previous the my last one...they show the Lake Huron/Michigan levels for an entire century. Especially note the levels for 1926 and 1964.

Good to see you posting again, V *waves*

[edit on 19-9-2006 by masqua]
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