Articles | Volume 19, issue 8
https://doi.org/10.5194/tc-19-2855-2025
https://doi.org/10.5194/tc-19-2855-2025
Research article
 | 
07 Aug 2025
Research article |  | 07 Aug 2025

New radar altimetry datasets of Greenland and Antarctic surface elevation, 1991–2012

Maya Raghunath Suryawanshi, Malcolm McMillan, Jennifer Maddalena, Fanny Piras, Jérémie Aublanc, Jean-Alexis Daguzé, Clara Grau, and Qi Huang

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Cited articles

Aublanc, J., Boy, F., Borde, F., and Féménias, P.: A facet-based numerical model to retrieve ice sheet topography from Sentinel-3 altimetry, The Cryosphere, 19, 1937–1954, https://doi.org/10.5194/tc-19-1937-2025, 2025. 
Bamber, J. L.: Ice sheet altimeter processing scheme, Int. J. Remote Sens., 15, 925–938, https://doi.org/10.1080/01431169408954125, 1994. 
Bamber, J. L., Gomez-Dans, J. L., and Griggs, J. A.: A new 1 km digital elevation model of the Antarctic derived from combined satellite radar and laser data – Part 1: Data and methods, The Cryosphere, 3, 101–111, https://doi.org/10.5194/tc-3-101-2009, 2009. 
Bamber, J. L., Griggs, J. A., Hurkmans, R. T. W. L., Dowdeswell, J. A., Gogineni, S. P., Howat, I., Mouginot, J., Paden, J., Palmer, S., Rignot, E., and Steinhage, D.: A new bed elevation dataset for Greenland, The Cryosphere, 7, 499–510, https://doi.org/10.5194/tc-7-499-2013, 2013. 
Brockley, D. J., Baker, S., Femenias, P., Martinez, B., Massmann, F., Otten, M., Paul F., Picard B., Prandi P., Roca M., Rudenko S., Scharroo R. and Visser, P.: REAPER: Reprocessing 12 years of ERS-1 and ERS-2 altimeters and microwave radiometer data, IEEE T. Geosci. Remote, 55, 5506–5514, https://doi.org/10.1109/tgrs.2017.2709343, 2017. 
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Short summary
Increasing melting rates of the polar ice sheets are contributing more and more to sea level rise. Due to the remoteness and expanse of ice sheets, these changes are mainly observed using satellites. However, the accuracy of these measurements depends on the processing of these datasets. Here we use advanced algorithms to provide improved historical ice sheet elevation measurements, derived from satellite altimeters flying between 1991 and 2012, which will benefit cryospheric applications.
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