关键词: 南极, 区域潮汐, 表面流速, 模型, 冰架

Abstract:

The Antarctic regional tide is the main influential factor in estimations of the Antarctic ice sheet mass balance and ice shelf surface velocity, which makes it of considerable importance for research on ice shelf collapse and global warming. Methods for determining the Antarctic tide have developed from real-time measurement into techniques based on satellite altimetry, remote sensing monitoring, and model predictions. Recent research has demonstrated a correlation between the tidal cycle and ice shelf surface velocity. For example, the surface velocities of the Filcher-Ronne and Ross ice shelves reach maxima during spring tides and minima during neap tides. This paper summarizes the association of tidal characteristics with the surface velocity and elevation changes of typical Antarctic ice shelves. It provides a basis for future studies focusing on the tidal variations of West Antarctica, the Antarctic Peninsula, and the data-sparse areas of East Antarctica, which are vital for building an Antarctic tidal database and for increasing model accuracy.

Key words: Antarctic, regional tide, surface velocity, model, ice shelf