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Apparent Periodic and Long-Term Changes in AAIW and UCDW Properties at Fixed Depths in the Southwest Pacific, With Indications of a Regime Shift in the 1930s

Thresher, Ronald E; Fallon, Stewart

Description

Metal/calcium ratios in two long-lived deep-sea gorgonian corals (Lepidisis and Corallium spp.) in the Southwest Pacific evidence periodic decadal variability at depths that correspond to Antarctic Intermediate Water (AAIW) and shallow Upper Circumpolar Deep Water, and a shift in the mid-1930s to late-1930s in mean ambient temperatures, barium/silicate concentrations and possibly pH, the rate at which these properties change over time, and the relationship between temperatures at fixed depth...[Show more]

CollectionsANU Research Publications
Date published: 2021
Type: Journal article
URI: http://hdl.handle.net/1885/276800
Source: Geophysical Research Letters
DOI: 10.1029/2020GL092329
Access Rights: Open Access

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