24 January, 2002
Weather High ~20, Low ~37 Bitter cold!
I saw my first Sundog (Parhelia) today. This stunning ice crystal halo, observed from the Geophysical Institute looked like a vertical cylindrical rainbow. Often found in Antarctica, these light phenomena also appear in other areas with similar climates. Ice crystals formed in air retract light in various degrees portraying rainbow-like colors in cylindrical or arc shapes. For more information on Parhelia:
As explained yesterday, Sandra (previous TEAntarctic teacher) is visiting from Seattle to consult with Martin (Dr. Jeffries) on one of his projects. This afternoon, Sandra and I worked together calculating raw data from Aurora pond. I've been here for almost two weeks and I still find data calculation the most difficult but rewarding experience of this project.
Topic of the Day
What is a hot-wire ice thickness gauge? To review, a hot-wire gauge is an instrument used to measure ice thickness in a non- destructive manner (as opposed to drilling). See diagrams below.
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