Exploring systematic offsets between aerosol products from the two MODIS sensors

Levy, Robert C.; Mattoo, Shana; Sawyer, Virginia; Shi, Yingxi; Colarco, Peter R.; Lyapustin, Alexei I.; Wang, Yujie; Remer, Lorraine A.

doi:https://doi.org/10.5194/amt-11-4073-2018

Articles | Volume 11, issue 7

https://doi.org/10.5194/amt-11-4073-2018

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

https://doi.org/10.5194/amt-11-4073-2018

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

Articles | Volume 11, issue 7

Research article

|

13 Jul 2018

Research article |

| 13 Jul 2018

Exploring systematic offsets between aerosol products from the two MODIS sensors

Robert C. Levy, Shana Mattoo, Virginia Sawyer, Yingxi Shi, Peter R. Colarco, Alexei I. Lyapustin, Yujie Wang, and Lorraine A. Remer

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Final revised paper (published on 13 Jul 2018)
Preprint (discussion started on 15 Feb 2018)

Interactive discussion

Status: closed

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

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- Supplement

SC1: 'Short comment about linear least squares regression results presented', Andrew Sayer, 14 Mar 2018
- AC1: 'Reply to Andrew Sayer's short comment about linear-least squares regression', Robert Levy, 29 May 2018
RC1: 'Reviewer comments', Anonymous Referee #1, 26 Mar 2018
- AC2: 'Response to Anonymous Reviewer #1 Comments', Robert Levy, 29 May 2018
RC2: 'Reviewer comments', Anonymous Referee #2, 19 Apr 2018
- AC3: 'Response to Anonymous Reviewer #2 Comments', Robert Levy, 29 May 2018
RC3: 'Reviewer comments', Pekka Kolmonen, 20 Apr 2018
- AC4: 'Response to Pekka Kolmonen Reviewer #3 Comments', Robert Levy, 29 May 2018

Peer-review completion

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

AR by Robert Levy on behalf of the Authors (31 May 2018) Author's response Manuscript

ED: Publish as is (15 Jun 2018) by Marloes Penning de Vries

AR by Robert Levy on behalf of the Authors (20 Jun 2018) Manuscript

Short summary

Global aerosol data sets are essential for assessing climate-related questions. When comparing data sets derived from twin satellite sensors, we find consistent global offsets between morning and afternoon observations. Applying satellite-like sampling to a global model derives much weaker morning/afternoon offsets, suggesting that the observational differences are due to calibration. However, applying additional calibration corrections appears to reduce (but not remove) the global offsets.