Synoptic variability in satellite altimeter‐derived radar freeboard of Arctic sea ice

C Nab, R Mallett, W Gregory, J Landy… - Geophysical …, 2023 - Wiley Online Library
Satellite observations of sea ice freeboard are integral to the estimation of sea ice thickness.
It is commonly assumed that radar pulses from satellite‐mounted Ku‐band altimeters …

Retrieval of snow depth on Arctic sea ice from surface‐based, polarimetric, dual‐frequency radar altimetry

R Willatt, JC Stroeve, V Nandan… - Geophysical …, 2023 - Wiley Online Library
Snow depth on sea ice is an Essential Climate Variable and a major source of uncertainty in
satellite altimetry‐derived sea ice thickness. During winter of the MOSAiC Expedition, the …

High-resolution repeat topography of drifting ice floes in the Arctic Ocean from terrestrial laser scanning

D Clemens-Sewall, C Polashenski, IA Raphael… - Scientific Data, 2024 - nature.com
Snow and ice topography impact and are impacted by fluxes of mass, energy, and
momentum in Arctic sea ice. We measured the topography on approximately a 0.5 km2 …

Airborne investigation of quasi-specular Ku-band radar scattering for satellite altimetry over snow-covered Arctic sea ice

C de Rijke-Thomas, J Landy, R Mallett… - … on Geoscience and …, 2023 - ieeexplore.ieee.org
Surface-based Ku-band radar altimetry investigations indicate that the radar signal is
typically backscattered from well above the snow–sea ice interface. However, this would …

Improving Arctic sea-ice thickness estimates with the assimilation of CryoSat-2 summer observations

C Min, Q Yang, H Luo, D Chen, T Krumpen… - Ocean-Land …, 2023 - spj.science.org
Rapidly shrinking Arctic sea ice has had substantial impacts on the Earth system. Therefore,
reliably estimating the Arctic sea-ice thickness (SIT) using a combination of available …

Spatio-temporal variability of small-scale leads based on helicopter maps of winter sea ice surface temperatures

L Thielke, G Spreen, M Huntemann… - Elementa: Science of …, 2024 - online.ucpress.edu
Observations of sea ice surface temperature provide crucial information for studying Arctic
climate, particularly during winter. We examined 1 m resolution surface temperature maps …

Arctic freeboard and snow depth from near‐coincident CryoSat‐2 and ICESat‐2 (CRYO2ICE) observations: A first examination of winter sea ice during 2020–2022

RM Fredensborg Hansen, H Skourup… - Earth and Space …, 2024 - Wiley Online Library
In the summer of 2020, ESA changed the orbit of CryoSat‐2 to align periodically with NASA's
ICESat‐2 mission, a campaign known as CRYO2ICE, which allows for near‐coincident …

C and K band microwave penetration into snow on sea ice studied with off-the-shelf tank radars

A Jutila, C Haas - Annals of Glaciology, 2023 - cambridge.org
Snow cover on sea ice poses a challenge for radar measurements as microwave
penetration into snow is not yet fully understood. In this study, the aim is to investigate …

Arctic Freeboard and Snow Depth From Near-Coincident CryoSat-2 and ICESat-2 (CRYO2ICE) Observations: A First Examination of Winter Sea Ice During 2020 …

RMF Hansen, H Skourup, E Rinne, KV Høyland… - Earth and Space …, 2024 - orbit.dtu.dk
In the summer of 2020, ESA changed the orbit of CryoSat-2 to align periodically with NASA's
ICESat-2 mission, a campaign known as CRYO2ICE, which allows for near-coincident …

Arctic Surface Snow Interactions with the Atmosphere: Spatio-Temporal Isotopic Variability During the MOSAiC Expedition

M Mellat, AR Macfarlane, CF Brunello… - …, 2024 - egusphere.copernicus.org
The Arctic Ocean's snow cover is crucial in moderating interactions between sea-ice and the
atmosphere, yet fully grasping its isotopic composition and the processes shaping it …