Here is a scientific riddle... héhéhé!
Today I went on the field to see how the Eagle Creek looked like in January....
I drove on the 56th street which cut the reservoir on the middle... and I've been surprised to see that the northen part of the reservoir was full of ice and snow and the southern part didn't have almost any...
Why?
Here is the northern part:
the water intake in the middle:
and the southen part:
plus... a little track under the snow... ;-)
Do you have any idea?
3 comments:
Dear corentin,
According to any websites, there is a couple of explanations:
- the dynamic of atmospheric and aquatic currents and the heat flux that they can transport. http://ice-glaces.ec.gc.ca/WsvPageDsp.cfm?ID=11680&Lang=fre
- the bathimetry of your reservoir will directly influence the distribution and the thickness of the icing-cap.
http://forums.infoclimat.fr/index.php?showtopic=25381
- In northern hemisphere and during winter season, the sun-rays's warming will be more efficient in the South than in the North because of the obliquity of the rays due to the inclinaison of the Earth's rotation axis (only small local effect, i guess)...
So in first order, i suggest you to check if the lower-bathymetry areas of the Eagle Creek Reservoir fits well with the frozen zones that you observed.
Results which could be in good agreement with the Google picture of the lake, showing in the north of the little house:
- First, the area of deltaic sedimentation (see mud tracks) giving an explanation a low-bathymetry in the river's mouth (but also with high hydrolic energy).
- Second, northerly a low hydrolic energy zone preserved from the river's mouth.
Congratulation to Jamie and Fred!
These guys are Moult!
The explanation come from the bathymetry...
The southern part of the reservoir is deeper than the northern.
Then, in winter, it takes more time for the southern reservoir to get cold and in summer this part will be colder than the northern one which is shallow then get warm faster!
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