@article{8ddf93799b004bbd954afd5140be846f,
title = "Extending the Arctic sea ice freeboard and sea level record with the Sentinel-3 radar altimeters",
abstract = "In February 2016 and April 2018 the European Space Agency launched the Sentinel-3A and 3B satellites respectively, as part of the European Commission's multi-satellite Copernicus Programme. Here we process Sentinel-3A waveform data to estimate Arctic sea level anomaly and radar freeboard from November 2017 to April 2018. We compare our results to those from the CryoSat-2 satellite, and find an intermission bias on sea-level anomaly of 2 cm. We also find a mean radar freeboard difference of 1 cm, which we attribute to the use of empirical retrackers to retrieve lead and floe elevations. Ahead of Sentinel-3B waveform data being made available, we use orbit files to estimate the improvement in sampling resolution afforded by the addition of Sentinel-3A and 3B data to the CryoSat-2 dataset. By combining data from the three satellites, grid resolution or time-sampling can be almost tripled compared with using CryoSat-2 data alone.",
keywords = "CryoSat-2, Radar altimetry, Radar freeboard, Sea ice, Sea-level anomaly, Sentinel-3",
author = "Lawrence, {Isobel R.} and Armitage, {Thomas W.K.} and Tsamados, {Michel C.} and Stroeve, {Julienne C.} and Salvatore Dinardo and Ridout, {Andy L.} and Alan Muir and Tilling, {Rachel L.} and Andrew Shepherd",
note = "Funding information: I. Lawrence was funded by the London National Environmental Research Council Doctoral Training Partnership grant (NE/L002485/1). T. Armitage was supported at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. M. Tsamados acknowledges support from the European Space Agency Project project “Polarice” under Grant ESA/AO/1-9132/17/NL/MP. The authors wish to thank Jose Manuel Delgado Blasco and Giovanni Sabatino and the entire ESA-ESRIN RSS GPOD Team for carrying out the L0 to L1B processing. Users of the GPOD/SARvatore family of altimetry processors are supported under the coordination of J{\'e}r{\^o}me Benveniste (ESA-ESRIN) with ESA funding. CryoSat-2 and Sentinel-3A L0 data were provided by the European Space Agency as input to the GPOD/SARvatore service. Sea ice concentration data were provided by the National Snow and Ice Data Center. Sea ice type masks were provided by the Ocean and Sea Ice Satellite Application Facilities. Funding Information: I. Lawrence was funded by the London National Environmental Research Council Doctoral Training Partnership grant ( NE/L002485/1 ). T. Armitage was supported at the Jet Propulsion Laboratory , California Institute of Technology , under contract with the National Aeronautics and Space Administration. M. Tsamados acknowledges support from the European Space Agency Project project “Polarice” under Grant ESA/AO/1-9132/17/NL/MP . The authors wish to thank Jose Manuel Delgado Blasco and Giovanni Sabatino and the entire ESA-ESRIN RSS GPOD Team for carrying out the L0 to L1B processing. Users of the GPOD/SARvatore family of altimetry processors are supported under the coordination of J{\'e}r{\^o}me Benveniste (ESA-ESRIN) with ESA funding. CryoSat-2 and Sentinel-3A L0 data were provided by the European Space Agency as input to the GPOD/SARvatore service. Sea ice concentration data were provided by the National Snow and Ice Data Center. Sea ice type masks were provided by the Ocean and Sea Ice Satellite Application Facilities. Publisher Copyright: {\textcopyright} 2019 COSPAR",
year = "2021",
month = jul,
day = "15",
doi = "10.1016/j.asr.2019.10.011",
language = "English",
volume = "68",
pages = "711--723",
journal = "Advances in Space Research",
issn = "0273-1177",
publisher = "Elsevier",
number = "2",
}