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15 March, 2001

Teachers "Fluxing" Their Muscles

The newly-formed "Poker Flat Gang" suddenly realized that Tuesday's measurements on the lake were only the beginning of the Heat Flux story! Yesterday they put their heads (and calculators) together in order to determine snow mass, snow volume, and snow density. From the density values they were able to calculate thermal conductivities (the ability of the snow to conduct heat) as well as the heat fluxes. Refer to my 1999-2000 journal entries in order to determine how to calclate fluxes.

Woodstock Academy freshman science students may use the data below in order to calculate the fluxes:




			Lake 1A		Lake 1B



mean density		.176g/cc		.175 g/cc



mean surface temperature	-4.1 C		-4.7 C



mean interface temperature	-1.58 C		-1.82 C



mean snow depth		32.55 cm		31.93 cm


Fairbanks teachers determine the masses of their snow samples. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com


Ron at the calculator. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com


Dr. Martin Jeffries discusses heat flux with the teachers. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com

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