Simulated sea surface temperatures around New Zealand from 1982-2015 compared to three ground truth datasets

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Authors

Jonny Williams 

Abstract

In this brief note, I show the extent of global warming, as exemplified by sea surface temperature - SST - around New Zealand from 1982-2015. We use 16 members of the UKESM historical simulations from the sixth Assessment Report of the Intergovernmental Panel On Climate Change. These model data are compared to ground truth data from three observational datasets. All data is plotted with respect to the values at the beginning of 1982 for each dataset considered, the date from which all three observational products are available. All data used in this work is freely and publicly available. The three datasets show noticeably different results in the magnitude of their respective warming signals and this has important ramifications for how model-data comparisons are assessed for island nations with a predominantly maritime climate.

DOI

https://doi.org/10.31223/X54H63

Subjects

Earth Sciences, Physical Sciences and Mathematics

Keywords

climate, IPCC, New Zealand, ocean

Dates

Published: 2024-04-23 02:02

Last Updated: 2024-04-23 08:10

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License

CC-By Attribution-NonCommercial-NoDerivatives 4.0 International