Copernicus Marine Service Ocean State Report, Issue 5. (20th August 2021) - von Schuckmann, Karina; Le Traon, Pierre-Yves; Smith, Neville; Pascual, Ananda; Djavidnia, Samuel; Gattuso, Jean-Pierre; Grégoire, Marilaure; Aaboe, Signe; Alari, Victor; Alexander, Brittany E.; Alonso-Martirena, Andrés; Aydogdu, Ali; et al.