1. Sea ice freeboard in the Ross Sea from airborne altimetry IcePod 2016–2017 and a comparison with IceBridge 2013 and ICESat 2003–2008 Tan, Liuxi; Xie, Hongjie; Ackley, Stephen F.; Tinto, Kirsteen J.; Bell, Robin E.; Zappa, Christopher J.; Gao, Yongli; Mestas-Nuñez, Alberto M. 2020 Articles Sea iceSea ice--Remote sensingPolynyasMarine geophysicsOceanography