The Amundsen Seas Low (ASL) is a highly dynamic and mobile climatological low pressure system located in the Pacific sector of the Southern Ocean. In this sector, variability in sea-level pressure is greater than anywhere in the Southern Hemisphere making it challenging to isolate local fluctuations in the ASL from larger-scale shifts in atmospheric pressure. Scientists have demonstrated that the position and strength of the ASL are crucial for understanding regional change over the West Antarctic Ice Sheet (WAIS) # Background reading - http://journals.ametsoc.org/doi/abs/10.1175/JCLI-D-12-00813.1 - http://dx.doi.org/10.1002/2015GL067143