Abstract
During the first decade of the 21st century, approximately 6000 Argo floats have been launched over the World Ocean, gathering temperature and salinity data of the top 2000 m, at a 10-day or so sampling period. Meanwhile their deep displacements over 8 or 9 days can be used to map the ocean circulation at their drifting depth (mostly around 1000 m). A comprehensive processing of the Argo data collected has been done to produce a world atlas (named ANDRO) of deep displacements fully checked and corrected for possible errors found in the public Argo data files (due to wrong decoding or instrumental failure). So far, 75% (to be updated soon) of the world data has been processed to generate the present ANDRO displacements (which are based only on Argos surface locations). In a future version, improved deep displacement estimates will be based on float surfacing and diving estimated positions.
Link to PDF article :
ANDRO : An Argo-Based Deep Displacement Atlas - Ollitrault & al. 1.04 MB