During a drought like we had this summer, definitely yes. Again related to drainage area.What I'm not overly familiar with is how far the watershed of the GL goes into Canada. Is it the same narrow band as in the US?RonWild CheriC&C 30STL
--- On Thu, 10/4/12, Stevan Plavsa <stevanpla...@gmail.com> wrote: From: Stevan Plavsa <stevanpla...@gmail.com> Subject: Re: Stus-List Great Lakes Water Levels To: cnc-list@cnc-list.com Date: Thursday, October 4, 2012, 8:19 AM What about water use? Irrigation, municipal, etc? Is that a factor? SteveC&C 32Toronto On Thu, Oct 4, 2012 at 12:40 AM, Ronald B. Frerker <rbfrer...@yahoo.com> wrote: Mostly makes sense. However, flow through the Chicago canal to the Mississippi by way of the Illinois doesn't ever cause much more than flushing a toilet in MPLS. The Chicago was diverted to the Illinois to keep Chicago sewage out of Lake Michigan. The canal just allows for traffic between the river and the lake given the river course change. Also, I believe someone mentioned the dredging earlier, but IIRC, flow rate would not be as related to river depth as to the drop rate of the river bottom and the height of water column of the upper lakes. If only a section was dredged and not the entire river, I would think the flow rate would not be significantly different due to dredging. I'm not overly familiar with that section of the country, but it does sound more like a weather problem than a man-made one.RonWild CheriC&C 30STL --- On Wed, 10/3/12, Alex Giannelia <a...@airsensing.com> wrote: From: Alex Giannelia <a...@airsensing.com> Subject: Stus-List Great Lakes Water Levels To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> Date: Wednesday, October 3, 2012, 5:31 PM Stu is right to point this out. We need to listen and to do something. Here is my background based on what I do for a living and who I do it for. This issue is always going to be a difficult one. I am in the aerial mapping business and we have seen projects come out either because the lake levels were too high and caused property damaging erosion (1988-1990 comes to mind) that needed to be mapped for? The IJC. So they are looking at this. There are four drain plugs in the system that I know of, 1 Jackfish River to divert to hydro power in the James Bay 1) Chicago Canal to flood the Mississippi for shipping 2) Oswego to flood the Hudson 3) St. Lawrence which also drives shipping and hydroelectric These are supposed to balanced, and if the scientists were running the show, they probably would be, but politicians are, so the squeaky hinge gets the flow, so the St. Clair River deal just put a kibosh on everything because it accelerates the flown to Erie which due to its shallow nature is a great evaporator. No one figured on losing ice the way we have on all the lakes. I photographed Lake Ontario in Feb 1978, the last time it had more than 50% cover. Counting on this evaporation to create more snow is a nice wish, but as one guy on this list pointed out, Superior is upwind of everything, so don't count on it. WE ARE THE REASON. AND WHEN WE EITHER CHANGE OUR WAYS, OR GET POLITICIANS TO CHANGE THEM FOR US, THE SITUATION WILL CHANGE FOR THE BETTER, BUT IF WE DO NOTHING, THE WATER WILL EVAPORATE AND DUMP DOWNWIND INTO THE OCEAN EITHER AS SNOW OR RAIN. My .02 worth. ALEX GIANNELIA CC 35-II (1974) WILL BE RENAMED ON THE HARD SINCE NOV. 2006 and if the lake levels drop more, may be there forever ;>} Toronto Ontario _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com -----Inline Attachment Follows----- _______________________________________________ This List is provided by the C&C Photo Album http://www.cncphotoalbum.com CnC-List@cnc-list.com
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