Original ResearchPublished 21 July 2026Global assessment of merged multi-sensor ocean-colour chlorophyll-a productsSilvia Pardo · Gavin H. Tilstone · Giorgio Dall’Olmo · Thomas M. Jordan · Robert J. W. Brewin · Tania G. D. CasalFrontiers in Remote Sensingdoi 10.3389/frsen.2026.1825086