Abstract
Landsat imagery of TM, ETM+ and L8 were taken as data source and the partial least-squares regression was conducted to investigate the response of dynamics of Ross Ice Shelf and Ronne-Flchner Ice Shelf belonging to rift-opening calving dominant ice shelves to the natural environmental factors. The results show that, these two ice shelves have been extending to the ocean at nearly uniform speed along each coastline. The factors influence the dynamics of ice shelves via affecting the glacier movement. Surface air temperature and surface wind velocity facilitate the extension of ice shelves. Sea surface temperature, near-surface current velocity and atmospheric precipitable water are negatively correlated with the areal changes of ice shelves along each coastline. Salinity of the ocean is influenced by the ice shelves, and is positively correlated to the areal changes.
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