On the Factors Driving Upper-Ocean Salinity Variability at the Western Edge of the Eastern Pacific Fresh Pool

Abstract

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Subfootprint Variability of Sea Surface Salinity Observed during the SPURS-1 and SPURS-2 Field Campaigns

“…The central mooring data in SPURS-2 [33] were similar to SPURS-1. Quality control of the upper sensor, the one used in this paper, was described by [33].…”

“…The central mooring data in SPURS-2 [33] were similar to SPURS-1. Quality control of the upper sensor, the one used in this paper, was described by [33]. It suffered sensor drift during the deployment due to biofouling, which has not been corrected in the dataset used in this paper.…”

“…There are no velocity data publicly available for either central mooring as of the writing of this paper. However, time series of surface-layer velocity for SPURS-2 was published in [33] (their Figure 6 lower panels). The author of this paper has indicated (pers.…”

“…Large scale fronts form and traverse the region seasonally [44]. The presence of the North Equatorial Current and North Equatorial Countercurrent [45] makes advection the largest term in the upper-ocean salinity balance [33]. These currents pull the eastern Pacific fresh pool back and forth in the zonal direction [46].…”

Effects of Rainfall on the Atmosphere and the Ocean During SPURS-2

“…The NASA SPURS-2 campaign was conducted in the tropical eastern Pacific Ocean beneath the meandering ITCZ from late August of 2016 to early November of 2017. R/V Revelle deployed the central surface mooring at 10°N, 125°W on August 23, 2016 (Farrar and Plueddemann, 2019, in this issue). After…”