Understanding the Contribution of Ozone Changes in the Historical Sea Level Change ...
<!--!introduction!--> Changes in sea level are mostly driven by internal climate variability, and anthropogenic forcing. Moreover, changes in stratospheric and tropospheric Ozone during the second-half of the 20 th century also cause significant changes in ocean heat uptake. A recent study has...
| Main Authors: | , , , , |
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| Format: | Conference Object |
| Language: | unknown |
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GFZ German Research Centre for Geosciences
2023
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| Online Access: | https://dx.doi.org/10.57757/iugg23-2976 https://schema.datacite.org/meta/kernel-4.0/index.html |
| Summary: | <!--!introduction!--> Changes in sea level are mostly driven by internal climate variability, and anthropogenic forcing. Moreover, changes in stratospheric and tropospheric Ozone during the second-half of the 20 th century also cause significant changes in ocean heat uptake. A recent study has shown that both stratospheric and tropospheric ozone have contributed to the Southern Ocean warming in the deep ocean. This study has shown that the 30% of Southern Ocean warming during 1955-2000 is driven by ozone in the upper 2000 m of the ocean. Of this 30%, 60% is attributed to stratospheric and 40% to tropospheric ozone changes. Changes in ocean heat uptake consequently affect sea level and we assess these changes due to ozone. From the analysis of four CMIP6 models with a total of 28 ensemble members, we find that thermosteric sea level increases between 40-60 S and decreases between 60 S and the Antarctic peninsula. Hence, there is a gradient in thermosteric sea level established around 60 S with higher ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
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