Intercomparison and improvement of two-stream shortwave radiative transfer schemes in Earth system models for a unified treatment of cryospheric surfaces

Dang, Cheng; Zender, Charles S.; Flanner, Mark G.

doi:https://doi.org/10.5194/tc-13-2325-2019

Articles | Volume 13, issue 9

https://doi.org/10.5194/tc-13-2325-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-13-2325-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 13, issue 9

Research article

|

06 Sep 2019

Research article |

| 06 Sep 2019

Intercomparison and improvement of two-stream shortwave radiative transfer schemes in Earth system models for a unified treatment of cryospheric surfaces

Cheng Dang, Charles S. Zender, and Mark G. Flanner

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Final revised paper (published on 06 Sep 2019)
Preprint (discussion started on 20 Feb 2019)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review: Solid research but unclear in critical parts', Anonymous Referee #1, 14 Mar 2019
- AC1: 'Reply to the RCs: Inter-comparison and improvement of two-stream shortwave radiative transfer models for a unified treatment of cryospheric surfaces in ESMs', Cheng Dang, 15 May 2019
RC2: 'Review of Dang et al.', David Bailey, 18 Mar 2019
- AC1: 'Reply to the RCs: Inter-comparison and improvement of two-stream shortwave radiative transfer models for a unified treatment of cryospheric surfaces in ESMs', Cheng Dang, 15 May 2019

Peer-review completion

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

ED: Reconsider after major revisions (21 May 2019) by Dirk Notz

AR by Anna Wenzel on behalf of the Authors (24 May 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (29 May 2019) by Dirk Notz

RR by David Bailey (10 Jun 2019)

RR by Anonymous Referee #1 (27 Jun 2019)

Suggestions for revision or reasons for rejection

I have examined the manuscript by Dang et al. and my assessment is that the paper would be suitable for publication in The Cryosphere after minor corrections.

The authors have taken away most of the issues raised by the reviewers, and clarified and expanded the paper in a few critical sections.

Remaining minor issues:

line 12: Following reviewer 2, please change "large parts of the Earth" to "mid- and high latitudes."

line 74: ungrammatical: please change to: "... ice is much more absorptive, so that the broadband (or: near-infrared) snow albedo is lower than the visible albedo".

line 96: in the literature list, you use Kuipers Munneke et al, but here you use Munneke et al.. Please make consistent.

line 114: multi-year snowpack -> a multi-year snowpack

line 146: at representing -> for representing

line 193: matter of taste but I would say: "where mu is the cosine of the zenith angle"

line 226: their algorithms -> its algorithms

line 354: to snowpack -> to the snowpack

line 433: Please change the order of figure 1 and 2. In the text you present first figure 2 and then 1. Also, Figure 2 would be a more introductory figure, so better to make it figure 1.

line 524: suggest: "Although the differences between algorithms are small, they can have a notable impact on snowpack melt. For example, ..."

line 531: self-compensating -> compensating

line 569: please avoid this construction with opposing arguments in brackets. It is very confusing. Better: "two-stream models underestimate the column solar absorptions for new snow, and they overestimate them for old snow. ..."

line 594: within snowpack -> within the snowpack

line 595: among three two-stream models -> among the three two-stream models.

line 603: Break up this sentence into two sentences.

line 624: I assume that this correction is applied only for theta > 75 degrees. Please add this in the formula (for theta>75 deg)

line 654: surface of snowpack -> surface of the snowpack

line 663: suggest "Although the errors of direct near-IR albedos...."

line 666: can be important at/for high latitudes.

line 667: remains large -> is large

line 672: broader band-averaged. Please use consisten terms. Replace by "narrowband-averaged" or "band-averaged".

line 755: Replace the term "discussion" by "proposal for" or "requirements for" or "towards" or "designing".

line 787: suggest "Third, in a cryospheric radiative transfer model, one should prefer ..."

line 839: Adopting dEdd-AD radiative core -> Adopting the dEdd-AD radiative core

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ED: Publish subject to minor revisions (review by editor) (28 Jun 2019) by Dirk Notz

AR by Cheng Dang on behalf of the Authors (15 Jul 2019) Author's response Manuscript

ED: Publish as is (17 Jul 2019) by Dirk Notz