Articles | Volume 15, issue 11
Research article
03 Nov 2021
Research article |  | 03 Nov 2021

Eighteen-year record of circum-Antarctic landfast-sea-ice distribution allows detailed baseline characterisation and reveals trends and variability

Alexander D. Fraser, Robert A. Massom, Mark S. Handcock, Phillip Reid, Kay I. Ohshima, Marilyn N. Raphael, Jessica Cartwright, Andrew R. Klekociuk, Zhaohui Wang, and Richard Porter-Smith

Data sets

Circum-Antarctic landfast sea ice extent, 2000-2018, Ver. 2.2 A. D. Fraser and R. Massom

NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3 W. N. Meier, F. Fetterer, M. Savoie, S. Mallory, R. Duerr, and J. Stroeve

Short summary
Landfast ice is sea ice that remains stationary by attaching to Antarctica's coastline and grounded icebergs. Although a variable feature, landfast ice exerts influence on key coastal processes involving pack ice, the ice sheet, ocean, and atmosphere and is of ecological importance. We present a first analysis of change in landfast ice over an 18-year period and quantify trends (−0.19 ± 0.18 % yr−1). This analysis forms a reference of landfast-ice extent and variability for use in other studies.