Lagrangian trajectory dataset for AMOC lower limb

(2023) Lagrangian trajectory dataset for AMOC lower limb. Zenodo doi:10.5281/zenodo.7924420 [Dataset]

Abstract

These Lagrangian trajectory files were generated by TRACMASS, a Lagrangian parcel tracing algorithm, using data from a high-resolution (1/12o) ocean sea-ice hindcast. Two set of experiments were performed to trace the Atlantic Meridional Overturning Circulation (AMOC) lower limb; 1) Initiated only southward trajectories across the Fram Strait (fs) that corresponds to Arctic outflow and 2) traced only northward trajectories across the easten Subpolar North Atlantic (SPNA) Section which corresponds to Atlantic inflow and associated with the North Atlantic Current (nac). _ini.csv = store positions and properties of trajectories at the starting location _run.csv = store positions and properties of trajectories during the trajectory simulation _out.csv = store positions and properties of trajectories at the ending location _rerun.csv = This file is used to select trajectories that have reached a particular ending section. Column 2 in this file contain kill zone flag. Flag 1 means trajectories reaching the surface, 2 indicates trajectories reaching the Fram Strait , 3 means trajectories reaching the eastern SPNA section and finally 4 illustrate trajectories aprroaching the Barents Sea. TRACMASS documentation is available at https://www.tracmass.org/docs.html

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Contributors

Contributor: Sybren Drijfhout

Contributor: Dipanjan Dey

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