Melt Season Arctic Sea Ice Type Separability Using Fully and Compact Polarimetric C- and L-Band Synthetic Aperture Radar ...

• Main Authors: Tavri, Aikaterini, Scharien, Randall, Geldsetzer, Torsten
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2023
• Subjects: Space Science; Medicine; Environmental Sciences not elsewhere classified; Sociology; FOS Sociology; Biological Sciences not elsewhere classified; Arctic; Canadian Arctic Archipelago; Arctic Archipelago; Sea ice
• Online Access: https://dx.doi.org/10.6084/m9.figshare.24467226; https://tandf.figshare.com/articles/journal_contribution/Melt_Season_Arctic_Sea_Ice_Type_Separability_Using_Fully_and_Compact_Polarimetric_C-_and_L-Band_Synthetic_Aperture_Radar/24467226

Sea ice mapping using Synthetic Aperture Radar (SAR) in the melt season poses challenges, due to wet snow and melt ponds complicating sea ice type separability. To address this, we analyzed fully polarimetric (FP) and simulated compact polarimetric (CP) C- (RADARSAT-2) and L- (ALOS-2 PALSAR-2) band SAR, in the 2018 melt season in the Canadian Arctic Archipelago, for stage-wise separation of first year ice (FYI) and multiyear ice (MYI). SAR scenes at both near- (19.1–28.3°) and far- (35.8–42.1°) range incidence angles and coincident high-resolution optical scenes were used to assess the impact of surface melt ponds on separability within a landfast ice zone of diverse ice thickness. C-band provided better separability between FYI and MYI during pond onset, while L-band was superior during pond drainage due to MYI volumetric scattering. CP parameters matched FP performance across the melt season. HH and HV, commonly offered in ScanSAR mode for both frequencies, presented good separability during pond onset and ...