On the Annual and Semi-Annual Components of Variations in Extent of Arctic and Antarctic Sea-Ice

• Published in: Geosciences
• Main Authors: Fernando Lopes, Vincent Courtillot, Dominique Gibert, Jean-Louis Le Mouël
• Format: Text
• Language: English
• Published: Multidisciplinary Digital Publishing Institute 2023
• Subjects: sea ice; seasonal forcing; Taylor–Couette flow; Arctic; Antarctic; The Antarctic; Laplace; Chandler; Antarc*; Sea ice
• Online Access: https://doi.org/10.3390/geosciences13010021

In this paper, the 1978–2022 series of northern (NHSI) and southern (SHSI) hemisphere sea ice extent are submitted to singular spectral analysis (SSA). The trends are quasi-linear, decreasing for NHSI (by 58,300 km2/yr) and increasing for SHSI (by 15,400 km2/yr). The amplitude of annual variation in...