Adding Pietri article

src/data/papers-citing-parcels.ts

@@ -2434,4 +2434,13 @@ export const papersCitingParcels: Paper[] = [
     abstract:
       'The Antarctic Circumpolar Current (ACC) is a hotspot for the generation of small-scale motions that have a key role in cross-frontal exchanges. We present the first analysis of surface currents in the ACC derived from high-resolution sea surface height (SSH) fields provided by the new Surface Water and Ocean Topography (SWOT) satellite. To mitigate the impact of noise and unbalanced SSH, we introduce a two-dimensional fitting kernel method for deriving geostrophic and cyclogeostrophic velocities at different lengthscales. These velocity estimates are evaluated against the low-pass filtered component (1 day) of trajectories from 21 surface drifters that passed through the ACC meander. The SSH is found to be balanced and appropriate for inferring surface velocities at scales as small as 10 km, with an 18 km length scale identified as a trade-off between suppressing residual unbalanced waves and preserving finer-scale balanced signals in SWOT denoised SSH. At this scale, the geostrophic approximation becomes inaccurate, and higher-order terms in the momentum balance contribute up to 20% of the observed drifter velocities. Finally, distance-averaged pair statistics calculated from drifter pairs and virtual particles reveal that SWOT accurately captures dispersion properties over the 10–200 km range, providing observational evidence of the dominant role of balanced motions in particle dispersion within this range. By capturing balanced dynamics with unprecedented accuracy, SWOT SSH offers new opportunities to understand the impact of small scales on tracer exchange in the ACC and the Southern Ocean more broadly.',
   },
+  {
+    title:
+      'Meso- and Submesoscale Circulation Origins for Subsurface Oxygen Intrusions Into the Oxygen Deficient Zone of the Eastern Tropical North Pacific',
+    published_info: 'Journal of Geophysical Research, 130, e2025JC022577',
+    authors: 'Pietri, A, M Altabet, GW Cowles, E D`Asaro (2025)',
+    doi: 'https://doi.org/10.1029/2025JC022577',
+    abstract:
+      'Subsurface oxygen maxima (SOM) are recurrent but poorly understood features within the eastern tropical North Pacific oxygen deficient zone (ODZ). Here, we analyze a subsurface oxygen maximum (SOM) observed during the SR2114 cruise using in situ biogeochemical and physical measurements, satellite remote sensing, and Lagrangian particle tracking. The SOM was detected around the 26.4 isopycnal (∼150–200 m) and spatially associated with elevated oxygen concentrations within an otherwise hypoxic environment. Our results show that intense gap winds in the Gulfs of Tehuantepec and Papagayo generate strong upwelling, vertical mixing, and horizontal advection near the coast, potentially allowing subsurface layers to come into contact with surface waters and become oxygenated. The observed vertical penetration of wind-driven features below the Ekman layer also suggests the influence of eddy-wind interactions that reinforce vertical coherence and enhance the offshore transport of oxygen-rich waters. The offshoreward jets observed down to the SOM layer depth highlight the contribution of such coupled processes to ventilating the ODZ interior. Furthermore, float-based observations along isopycnals indicate progressive oxygen loss over time, likely due to local respiration, pointing to dynamic interplay between physical supply and biogeochemical consumption. Together, these findings underscore the pivotal role of coastal wind forcing and mesoscale dynamics in shaping the subsurface oxygen landscape of the eastern tropical North Pacific. The Lagrangian analysis also highlights distinct pathways for water parcels within the ODZ: south of 14°N, water masses are primarily influenced by equatorial currents, whereas in the northern region, water parcels predominantly originate from coastal sources with extended residency times.',
+  },
 ]