14 March, 2002
Sunny, High 28, Low -8
The Science Behind Density
As explained before, there are four sections used to
collect snow samples from Jalpertia pond. Heat flow is
a function of thermal conductivity and temperature
gradient. In order to find thermal conductivity, we
need to calculate snow density. We will discuss
temperature gradient later.
Below are mean (average) density values from Jalpertia
pond-notice the slight fluctuation.
3/5/02 = .1567203
3/7/02 = .1480379
3/9/02 = .1649073
3/12/02 = .1729894
3/14/02 = .1692460
Temperatures are expected to increase within the next
few days, which may impact the snow cover. What is
your prediction for March 16th?
So, What Do You Think?
Ice break up times on the Tanana River near Fairbanks
have been documented since 1917. Which week do you
think ice will break up this year?
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