A Swedish physicist called V. Walfrid Ekman has come back to haunt the Illawarra's early morning swimmers, with the ocean effect that takes his name making summer seem a long time gone.

Diurnal amplitude estimates of CCMP 6-hourly wind speed (m s −1) based on data from 2010–2019 during (A) December to January (DJ) and (B) July to August (JA). Vertical profiles of hydrographic ...