Looking seaward over the last week from almost all points along the coasts of Norton Sound, folks have been dazzled by bright blue horizons colored by open water.
The “thermal curtain” is another expression for “cold pool” that acts as a barrier to keep some species—pollock and Pacific cod, for example — from migrating across the eastern Bering Sea shelf and northward toward the Bering Strait. For the first time in 37 years of surveying the Bering Sea, we could not find the cold water barrier.
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