Towards a long-term global aerosol optical depth record: applying a consistent aerosol retrieval algorithm to MODIS and VIIRS-observed reflectance

Levy, R. C.; Munchak, L. A.; Mattoo, S.; Patadia, F.; Remer, L. A.; Holz, R. E.

doi:https://doi.org/10.5194/amt-8-4083-2015

Articles | Volume 8, issue 10

https://doi.org/10.5194/amt-8-4083-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-4083-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 10

Research article

|

07 Oct 2015

Research article |

| 07 Oct 2015

Towards a long-term global aerosol optical depth record: applying a consistent aerosol retrieval algorithm to MODIS and VIIRS-observed reflectance

R. C. Levy, L. A. Munchak, S. Mattoo, F. Patadia, L. A. Remer, and R. E. Holz

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Final revised paper (published on 07 Oct 2015)
Preprint (discussion started on 08 Jul 2015)

Interactive discussion

Status: closed

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

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- Supplement

RC C2383: 'Thorough analysis and discussion of needs for multi-sensor Climate Data Record from MODIS and VIIRS', Anonymous Referee #1, 03 Aug 2015
RC C2608: 'Comments on “Towards a long-term global aerosol optical depth record: applying a consistent aerosol retrieval algorithm to MODIS and VIIRS-observed reflectance” by R. C. Levy et al.', Anonymous Referee #2, 17 Aug 2015
AC C2931: 'Response to Reviews of amt-2015-157', Robert Levy, 11 Sep 2015

Short summary

Aerosol optical depth (AOD) is an essential climate variable, so we seek to create a long-term AOD record. From MODIS, we have 15+ years, which we want to continue with VIIRS. Accounting for instrumental difference, we have developed a MODIS-like algorithm for VIIRS, and applied it to overlapping 2-year time period. In general, the two data sets are similar, except for VIIRS being high-biased over ocean. We discuss the impacts of calibration, resolution, and sampling on the results.