Error of rate of surface elevation change in meters per year.

=== Original Data Source ===
1992-2020 Greenland surface elevation change from ERS-1, ERS-2, ENVISAT, Cryosat-2, and Sentinel-3 data, at 5-years means

Data are based on the European Space Agency's Ku-band radar
satellite level-2 data products. Given the longer time span of
operation of the satellites, the data are provided at a five-year
mean.

The algorithms used to derive the product are explained in detail in
Simonsen and Sørensen (2017), and Sørensen et al. (2018). The
approach used here is the most optimal combination of the XO-, TR-,
and PF-algorithm; the data are corrected for both backscatter and
leading-edge width, and solved at 1 km grid resolution and averaged
in the post-processing to 5 km grid resolution by ordinary kriging.

Reference:
Simonsen, S. B., and Sørensen, L. S. (2017) ‘Implications
of changing scattering properties on Greenland ice sheet volume
change from Cryosat-2 altimetry’, Remote Sensing of Environment.
Elsevier Inc., 190, pp. 207–216. DOI: 10.1016/j.rse.2016.12.012 .

Sørensen, L. S., Simonsen, S. B., Forsberg, R., Khvorostovsky, K.,
Meister, R., and Engdahl, M. E. (2018) '25 years of elevation
changes of the Greenland Ice Sheet from ERS, Envisat, and CryoSat-2
radar altimetry', Earth and Planetary Science Letters, 495, pp.
234-241 DOI: 10.1016/j.epsl.2018.05.015 .

Citation:
ESA. (2020) 1992-2020 Greenland SEC from ERS-1, ERS-2,
ENVISAT, Cryosat-2, and Sentinel-3 data, at 5-year means.
Greenland Ice Sheet CCI Products.

Citation URL:
http://products.esa-icesheets-cci.org/products/details/cci_sec_2020.tar.gz/