Spectral attenuation coefficients from measurements of light transmission in bare ice on the Greenland Ice Sheet

Cooper, Matthew G.; Smith, Laurence C.; Rennermalm, Asa K.; Tedesco, Marco; Muthyala, Rohi; Leidman, Sasha Z.; Moustafa, Samiah E.; Fayne, Jessica V.

doi:https://doi.org/10.5194/tc-15-1931-2021

Articles | Volume 15, issue 4

https://doi.org/10.5194/tc-15-1931-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-15-1931-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 4

Research article

|

21 Apr 2021

Research article |

| 21 Apr 2021

Spectral attenuation coefficients from measurements of light transmission in bare ice on the Greenland Ice Sheet

Matthew G. Cooper, Laurence C. Smith, Asa K. Rennermalm, Marco Tedesco, Rohi Muthyala, Sasha Z. Leidman, Samiah E. Moustafa, and Jessica V. Fayne

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Final revised paper (published on 21 Apr 2021)
Supplement to the final revised paper
Preprint (discussion started on 17 Mar 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review for Cooper et al. (TCD)', Anonymous Referee #1, 30 May 2020
- AC2: 'Response to Reviewer 1', Matthew Cooper, 15 Dec 2020
- AC4: 'Response to Reviewer 1 (see revised attachment)', Matthew Cooper, 19 Dec 2020
RC2: 'Referee comment of Cooper et al.', Anonymous Referee #2, 23 Jul 2020
- AC1: 'Response to Reviewer 2', Matthew Cooper, 15 Dec 2020
- AC3: 'Response to Reviewer 2 (revised attachment)', Matthew Cooper, 15 Dec 2020
- AC5: 'Response to Reviewer 2 (see revised attachment)', Matthew Cooper, 19 Dec 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to revisions (further review by editor and referees) (30 Dec 2020) by Mark Flanner

AR by Matthew Cooper on behalf of the Authors (26 Feb 2021) Author's response Author's tracked changes Manuscript

ED: Publish as is (01 Mar 2021) by Mark Flanner

AR by Matthew Cooper on behalf of the Authors (03 Mar 2021) Manuscript

Short summary

We measured sunlight transmitted into glacier ice to improve models of glacier ice melt and satellite measurements of glacier ice surfaces. We found that very small concentrations of impurities inside the ice increase absorption of sunlight, but the amount was small enough to enable an estimate of ice absorptivity. We confirmed earlier results that the absorption minimum is near 390 nm. We also found that a layer of highly reflective granular "white ice" near the surface reduces transmittance.