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Taking Scientific Measurements17 viewsA ruler measures the ice freeboard, or the height of the ice above the water. Ice draft, on the other hand, is the depth of the ice below the surface of the water. Notice the elongated crystals. Image credit: EWG.
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Taking Scientific Measurements17 viewsNotice the granular structure of this ice, and how large the grains are. The ruler is marked in centimeters. Image credit: EWG.
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113 viewsThese fluffy dendritic snow crystals were photographed during SnowNet 2009.
Image courtesy Andrew Slater, NSIDC.
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86 viewsKelley Elder of the U.S. Forest Service examining depthoar crystals on the northern slope of Alaska during the 2012 SnowNet expedition. --Credit: NSIDC, Mark Serreze
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74 viewsNSIDC Drew Slater and team examining snow crystals on the northern slope of Alaska during the 2012 SnowNet expedition. --Credit: NSIDC, Mark Serreze
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82 viewsCRREL’s Matt Sturm and team examining snow crystals on the northern slope of Alaska during the 2012 SnowNet expedition. --Credit: NSIDC, Mark Serreze
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123 viewsKelley Elder of the U.S. Forest Service and Matt Sturm of the U.S. Army Cold Regions Research and Engineering Laboratory (CRREL) examining snow crystals in a snow pit on the northern slope of Alaska during the 2012 Snownet expedition. --Credit: NSIDC, Mark Serreze
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88 viewsResearchers measure snow/firn grain size, as well as the depth of a snow pit.
Image Credit: Courtesy Ted Scambos and Rob Bauer, NSIDC
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