Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature
Atmospheric desert-dust aerosol, primarily from north Africa, causes negative biases in remotely sensed climate data records of sea surface temperature (SST). Here, large-scale bias adjustments are deduced and applied to the v2 climate data record of SST from the European Space Agency Climate Change...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/12/16/2554 |
| _version_ | 1827710875499233280 |
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| author | Christopher J. Merchant Owen Embury |
| author_facet | Christopher J. Merchant Owen Embury |
| author_sort | Christopher J. Merchant |
| collection | DOAJ |
| description | Atmospheric desert-dust aerosol, primarily from north Africa, causes negative biases in remotely sensed climate data records of sea surface temperature (SST). Here, large-scale bias adjustments are deduced and applied to the v2 climate data record of SST from the European Space Agency Climate Change Initiative (CCI). Unlike SST from infrared sensors, SST measured in situ is not prone to desert-dust bias. An in-situ-based SST analysis is combined with column dust mass from the Modern-Era Retrospective analysis for Research and Applications, Version 2 to deduce a monthly, large-scale adjustment to CCI analysis SSTs. Having reduced the dust-related biases, a further correction for some periods of anomalous satellite calibration is also derived. The corrections will increase the usability of the v2 CCI SST record for oceanographic and climate applications, such as understanding the role of Arabian Sea SSTs in the Indian monsoon. The corrections will also pave the way for a v3 climate data record with improved error characteristics with respect to atmospheric dust aerosol. |
| first_indexed | 2024-03-10T17:45:57Z |
| format | Article |
| id | doaj.art-851b2515b6ce44939e44c77a2671bd8b |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T17:45:57Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-851b2515b6ce44939e44c77a2671bd8b2023-11-20T09:32:29ZengMDPI AGRemote Sensing2072-42922020-08-011216255410.3390/rs12162554Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface TemperatureChristopher J. Merchant0Owen Embury1Department of Meteorology, University of Reading, Reading RG6 6BB, UKDepartment of Meteorology, University of Reading, Reading RG6 6BB, UKAtmospheric desert-dust aerosol, primarily from north Africa, causes negative biases in remotely sensed climate data records of sea surface temperature (SST). Here, large-scale bias adjustments are deduced and applied to the v2 climate data record of SST from the European Space Agency Climate Change Initiative (CCI). Unlike SST from infrared sensors, SST measured in situ is not prone to desert-dust bias. An in-situ-based SST analysis is combined with column dust mass from the Modern-Era Retrospective analysis for Research and Applications, Version 2 to deduce a monthly, large-scale adjustment to CCI analysis SSTs. Having reduced the dust-related biases, a further correction for some periods of anomalous satellite calibration is also derived. The corrections will increase the usability of the v2 CCI SST record for oceanographic and climate applications, such as understanding the role of Arabian Sea SSTs in the Indian monsoon. The corrections will also pave the way for a v3 climate data record with improved error characteristics with respect to atmospheric dust aerosol.https://www.mdpi.com/2072-4292/12/16/2554sea surface temperatureclimate data recordEuropean Space Agency Climate Change Initiativemineral aerosoldesert dustremote sensing |
| spellingShingle | Christopher J. Merchant Owen Embury Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature Remote Sensing sea surface temperature climate data record European Space Agency Climate Change Initiative mineral aerosol desert dust remote sensing |
| title | Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature |
| title_full | Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature |
| title_fullStr | Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature |
| title_full_unstemmed | Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature |
| title_short | Adjusting for Desert-Dust-Related Biases in a Climate Data Record of Sea Surface Temperature |
| title_sort | adjusting for desert dust related biases in a climate data record of sea surface temperature |
| topic | sea surface temperature climate data record European Space Agency Climate Change Initiative mineral aerosol desert dust remote sensing |
| url | https://www.mdpi.com/2072-4292/12/16/2554 |
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