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Recent trends in Arctic Ocean mass distribution revealed by GRACE
Author(s) -
Morison James,
Wahr John,
Kwok Ron,
PeraltaFerriz Cecilia
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2006gl029016
Subject(s) - anticyclone , arctic , climatology , oceanography , geology , the arctic , structural basin , canada basin , water mass , spatial distribution , environmental science , geomorphology , remote sensing
Measurements of ocean bottom pressure by the Gravity Recovery and Climate Experiment (GRACE) and new in situ bottom pressure measurements confirm the accuracy and utility of GRACE measurements in the Arctic Ocean. They reveal a declining trend in bottom pressure that corresponds to mass changes due to decreasing upper ocean salinities near the North Pole and in the Makarov Basin. The spatial distribution and magnitude of these trends suggest the Arctic Ocean is reverting from the cyclonic state characterizing the 1990s to the anticyclonic state that was prevalent prior to the 1990s.