A new tracking algorithm for sea ice age distribution estimation

Korosov, Anton Andreevich; Rampal, Pierre; Pedersen, Leif Toudal; Saldo, Roberto; Ye, Yufang; Heygster, Georg; Lavergne, Thomas; Aaboe, Signe; Girard-Ardhuin, Fanny

doi:https://doi.org/10.5194/tc-12-2073-2018

Articles | Volume 12, issue 6

https://doi.org/10.5194/tc-12-2073-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-12-2073-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 6

Research article

|

15 Jun 2018

Research article |

| 15 Jun 2018

A new tracking algorithm for sea ice age distribution estimation

Anton Andreevich Korosov, Pierre Rampal, Leif Toudal Pedersen, Roberto Saldo, Yufang Ye, Georg Heygster, Thomas Lavergne, Signe Aaboe, and Fanny Girard-Ardhuin

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Final revised paper (published on 15 Jun 2018)
Preprint (discussion started on 15 Nov 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'review of TC-2017-250', Anonymous Referee #1, 20 Dec 2017
RC2: 'Review of "A new tracking algorithm for sea ice age distribution estimates"', Anonymous Referee #2, 07 Mar 2018
AC1: 'Author final response', Anton Korosov, 22 Mar 2018

Peer-review completion

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

AR by Anton Korosov on behalf of the Authors (26 Mar 2018) Author's response Manuscript

ED: Referee Nomination & Report Request started (05 Apr 2018) by Jennifer Hutchings

RR by Anonymous Referee #2 (12 Apr 2018)

RR by Anonymous Referee #3 (12 May 2018)

ED: Publish subject to minor revisions (review by editor) (21 May 2018) by Jennifer Hutchings

Dear Anton, Pierre, Leif, Roberto, Yufang, Georg, Thomas, Signe and Fanny,

Thank you for the submission of your manuscript to The Cryosphere Discussions. I have recieved two reviews of the paper, and there are very minimal corrections suggested. I hope you can consider these and take the opportunity for one last proof read of the paper. The paper is well written, thank you for your effort here, it really does improve the review process. I have a few specific comments on grammar for you to consider.

page 3, line 31: A suggeston to reword "The initial MYI concentrations are corrected by two correction schemes": Two correction schemes were applied to initial MYI concentration. This is a purely stylistic suggestion.

page 4, line 23: "Such case" -> "Such a case"

page 5, line 2: "details below" -> "detail below"

page 7, line 15: "increases risk to consider" -> "increases risk of considering".

page 7, line 16: "also" is not required in this sentance

page 10, line 2: "The developed advection scheme". Reference the section or paper where this is introduced.

page 10, line 12-13: "Finally, we have used the new advection scheme, the
OSI SAF ice drift and fully accounting for SIC." Rephrase, this sentance does not make complete sense. Should the "and" be removed?

page 16, line 4: " allows to draw an outline". There are several examples of grammar mistakes like this throughout the paper. You could either phrase this as "allows one to draw an outline" or "allows drawing of an outline".

page 17, line 15-17: Consider rephrasing " Although it happens later - maybe after 5 years of propagation - but a higher number of initial points still leads to undersampling when the Lagrangian propagation"
scheme is used." Perhaps "With a higher number of initial points, undersampling is still experienced after 5 years of Lagrangian propagation". Also, it would help to quantify what "higher number of points" is.

Very best regards,
Jenny

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AR by Anton Korosov on behalf of the Authors (22 May 2018) Author's response Manuscript

ED: Publish as is (25 May 2018) by Jennifer Hutchings

AR by Anton Korosov on behalf of the Authors (25 May 2018)

Short summary

A new algorithm for estimating sea ice age in the Arctic is presented. The algorithm accounts for motion, deformation, melting and freezing of sea ice and uses daily sea ice drift and sea ice concentration products. The major advantage of the new algorithm is the ability to generate individual ice age fractions in each pixel or, in other words, to provide a frequency distribution of the ice age. Multi-year ice concentration can be computed as a sum of all ice fractions older than 1 year.