At Barrow, Alaska, local Iñupiat whaling crews annually construct a network of semipermanent trails through the landfast ice during the spring hunting season. These trails originate at predictable locations along the coast and pass through (or circumnavigate) a range of diverse ice features before terminating at the landfast ice edge where whaling camps are established. The Barrow sea ice trail maps show the location of the trails for years 2007 through 2011. Continuous ice thickness and topography measurements using electromagnetic induction sounding and DGPS are being made along these trails. Ice thickness maps are available for years 2008, 2010, and 2011. These maps are provided as information resources to the hunting community throughout the whaling season.
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