The mysterious appearance and disappearance of the Weddell Polynya, a giant hole in the sea ice cover, has long puzzled scientists. Recent work reveals that the polynya is initiated and maintained by gigantic and formidable atmospheric currents: atmospheric rivers! Read on to find out more… Each year, approximately 15 million square kilometers of ice forms in the Southern Ocean around Antarctica d ...[Read More]
Atmospheric Rivers: A blanket for Antarctic winter sea ice

Figure 1: The Weddell Polynya in the Weddell Sea as seen from space on 25 September 2017, a few days after the initial opening on 14 September 2017. Figure credits: NASA.