The dataset provides Along-track Sea Level Anomalies over 23 zones for 6 temporal time series: TP+J1+J2+J3, TPn+J1n+J2n, ERS1+ERS2+ENV+SRL, GFO, S3A, HY2A. The Sea Level Anomaly time series have been computed with the X-TRACK processing system (developed at LEGOS) starting from the Level 2 Plus (L2P) products distributed by Aviso+. The altimetry corrections applied are those provided in this product. See the details of the L2P processing on the dedicated product page on Aviso+ https://www.aviso.altimetry.fr/en/data/products/sea-surface-height-products/global/along-track-sea-level-anomalies-l2p.html.