A first approach towards dual-hemisphere sea ice reference measurements from multiple data sources repurposed for evaluation and product intercomparison of satellite altimetry

Olsen, Ida Lundtorp; Skourup, Henriette; Sallila, Heidi; Hendricks, Stefan; Fredensborg Hansen, Renée Mie; Kern, Stefan; Paul, Stephan; Bocquet, Marion; Fleury, Sara; Divine, Dmitry; Rinne, Eero

doi:10.5194/essd-18-2469-2026

Articles | Volume 18, issue 3

https://doi.org/10.5194/essd-18-2469-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-18-2469-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 3

Data description article

|

02 Apr 2026

Data description article |

| 02 Apr 2026

A first approach towards dual-hemisphere sea ice reference measurements from multiple data sources repurposed for evaluation and product intercomparison of satellite altimetry

Ida Lundtorp Olsen, Henriette Skourup, Heidi Sallila, Stefan Hendricks, Renée Mie Fredensborg Hansen, Stefan Kern, Stephan Paul, Marion Bocquet, Sara Fleury, Dmitry Divine, and Eero Rinne

Data sets

Climate Change Initiative sea ice thickness Round Robin Data Package (CCI SIT RRDP) Ida Lundtorp Olsen and Henriette Skourup https://doi.org/10.11583/DTU.24787341

Model code and software

ESA-CCI-RRDP-code Ida Lundtorp Olsen and Henriette Skourup https://doi.org/10.5281/zenodo.14808968

Short summary

Discover the latest advancements in sea ice research with our comprehensive Climate Change Initiative (CCI) sea ice thickness (SIT) Round Robin Data Package (RRDP). This pioneering collection contains reference measurements from 1960 to 2024 from airborne sensors, buoys, visual observations and sonar and covers the polar regions from 1993 to 2024, providing crucial reference measurements for validating satellite-derived sea ice thickness.