Mapping sea ice concentration using Nimbus-5  ESMR and local dynamical tie points

Tellefsen, Emil Haaber; Tonboe, Rasmus Tage; Kolbe, Wiebke Margitta

doi:10.5194/essd-18-2891-2026

Articles | Volume 18, issue 4

https://doi.org/10.5194/essd-18-2891-2026

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

https://doi.org/10.5194/essd-18-2891-2026

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

Articles | Volume 18, issue 4

Data description article

|

27 Apr 2026

Data description article |

| 27 Apr 2026

Mapping sea ice concentration using Nimbus-5 ESMR and local dynamical tie points

Emil Haaber Tellefsen, Rasmus Tage Tonboe, and Wiebke Margitta Kolbe

Data sets

ESA Sea Ice Climate Change Initiative (Sea_Ice_cci): Nimbus-5 ESMR Sea Ice Concentration, version 1.1 Rasmus Tage Tonboe et al. https://doi.org/10.5285/8978580336864f6d8282656d58771b32

Model code and software

EHTellefsen/N5ESMR-SIC-processing: N5ESMR SIC v1.1.0 (v1.1.0) Emil Haaber Tellefsen https://doi.org/10.5281/zenodo.19676225

Short summary

The Electrically Scanning Microwave Radiometer, the first spaceborne microwave instrument to map global sea ice, was launched aboard the NIMBUS 5 satellite in December 1972 and remained operational until May 1977. As part of the European Space Agency's Climate Change Initiative, this dataset has been reprocessed and validated to provide a nearly complete global record of sea ice concentration, with only a few data gaps in 1973 and 1975.