Coldspot of decelerated sea-level rise on the Pacific coast of North America
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Date
2016
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Wydział Nauk Geograficznych i Geologicznych Uniwersytetu im. Adama Mickiewicza
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Abstract
We show here the presence of significant “coldspot” of sea level rise along the West Coast of the United States
and Canada (including Alaska). The 30-years sea level for the area are mostly falling also at subsiding locations as San
Francisco and Seattle where subsidence is responsible for a long term positive rate of rise. The 20 long term tide gauges
of the area of length exceeding the 60-years length have a naïve average rate of rise –0.729 mm/year in the update 30-
Apr-2015, down from –0.624 mm/year in the update 14-Feb-2014. Therefore, along the West Coast of the United States
and Canada the sea levels are on average falling, and becoming more and more negative.
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Keywords
sea level, measurements, tide gauges, West Coast of North America
Citation
Quaestiones Geographicae vol. 35 (3), 2016, pp. 31-37