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Understanding the annual cycle of the Arctic Ocean bottom pressure
Author(s) -
PeraltaFerriz Cecilia,
Morison James
Publication year - 2010
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 - 10.1029/2010gl042827
Subject(s) - climatology , precipitation , arctic , spring (device) , evaporation , surface runoff , the arctic , environmental science , geology , structural basin , atmospheric sciences , oceanography , meteorology , physics , geomorphology , ecology , biology , thermodynamics
Ocean bottom pressure (OBP) observations in the Arctic from in situ pressure recorders and the Gravity Recovery and Climate Experiment (GRACE) satellite mission, averaged over the basin, reveal annual oscillations of about 2 cm. The maximum occurs in late summer to early fall and the minimum in late winter to early spring. We derive a simple model of OBP response to runoff and precipitation minus evaporation (P‐E) that agrees in phase with the observations and is 10% larger.