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Volume 11, issue 4
The Cryosphere, 11, 1781–1795, 2017
https://doi.org/10.5194/tc-11-1781-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 11, 1781–1795, 2017
https://doi.org/10.5194/tc-11-1781-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 01 Aug 2017

Research article | 01 Aug 2017

Impact of MODIS sensor calibration updates on Greenland Ice Sheet surface reflectance and albedo trends

Kimberly A. Casey et al.

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Adams, J. B. and Filice, A. L.: Spectral reflectance 0.4 to 2.0 microns of silicate rock powders, J. Geophys. Res., 72, 5705–5715, https://doi.org/10.1029/JZ072i022p05705, 1967.
Alexander, P. M., Tedesco, M., Fettweis, X., van de Wal, R. S. W., Smeets, C. J. P. P., and van den Broeke, M. R.: Assessing spatio-temporal variability and trends in modelled and measured Greenland Ice Sheet albedo (2000–2013), The Cryosphere, 8, 2293–2312, https://doi.org/10.5194/tc-8-2293-2014, 2014.
Barnes, W. L., Pagano, T. S., and Salomonson, V. V.: Prelaunch characteristics of the Moderate Resolution Imaging Spectroradiometer (MODIS) on EOS-AM1, IEEE T. Geosci. Remote, 36, 4, 1088–1100, https://doi.org/10.1109/36.700993, 1998.
Bøggild, C. E., Brandt, R. E., Brown, K. J., and Warren, S. G.: The ablation zone in northeast Greenland: ice types, albedos and impurities, J. Glaciol., 56, 101–113, 2010.
Box, J. E., Fettweis, X., Stroeve, J. C., Tedesco, M., Hall, D. K., and Steffen, K.: Greenland ice sheet albedo feedback: thermodynamics and atmospheric drivers, The Cryosphere, 6, 821–839, https://doi.org/10.5194/tc-6-821-2012, 2012.
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Short summary
We analyzed Greenland Ice Sheet (GrIS) average summer surface reflectance and albedo (2001–2016). MODIS Collection 6 data show a decreased magnitude of change over time due to sensor calibration corrections. Spectral band maps provide insight into GrIS surface processes likely occurring. Correctly measuring albedo and surface reflectance changes over time is crucial to monitoring atmosphere–ice interactions and ice mass balance. The results are applicable to many long-term MODIS studies.
We analyzed Greenland Ice Sheet (GrIS) average summer surface reflectance and albedo...
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