Figure 1
From: Natural cycles in South Pacific Gyre strength and the Southern Annular Mode
Regional Trends in Southwest Pacific Gyre Oceanography. (A) The trend in South Pacific Gyre sea level height anomalies (SLA) for the 1993-2016CE period. Trends are calculated using weekly values of sea level height anomalies (SLA). Data are from AVISO Ssalto/Duacs altimeter products, the delayed time multi-mission project produced and distributed by the Copernicus Marine and Environment Monitoring Service (CMEMS) (http://www.marine.copernicus.eu). Red areas indicate a positive SLA trend, blue areas indicate a negative SLA trend. Red arrows indicate warm subtropical tropical currents and blue arrows indicate cool subtropical currents; EAC—East Australian Current; TF—Tasman Front; EAC Ext.—East Australian Current Extension; EAuC—East Auckland Current; STW – Subtropical Water; STF—Subtropical Front. Colored dots indicate the coral locations in the study. (B) The trend in Southwest Pacific Gyre Sea Level Height Anomalies for the 1993–2016CE period. The trend (red line) is calculated using a linear fit for each grid point and then constructing a spatial average over the selected region (red box in Panel A) and values are plotted as function of time (blue line). Seasonality is not removed.
