Ocean bottom pressure variability in the Antarctic Divergence Zone off Lützow-Holm Bay, East Antarctica

► We analyzed bottom pressure in the Antarctic Divergence Zone off Lützow-Holm Bay. ► Seasonal property is attributed to change of Ekman drift by the easterly wind. ► Non-seasonal variation is related to Ekman divergence by the westerly wind. ► Shift in the balance of two prevailing winds causes the bottom pressure change.