Challenges and potential in the interpretation of global temperature proxy data compilations


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emily.richards [ at ] awi.de

Abstract

As the availability of high-resolution proxy records increases, the number of large-scale compilations that are built and analyzed continues to grow. Such datasets allow us to disentangle regional and global climate changes from local and proxy specific effects, to better bridge the spatial scales of local proxy recorders vs. global climate models and they support more objective statistical analyses. However, compilations also often combine data for multiple proxy types and which may record different climate variables (e.g. different seasonal or atmospheric vs. water temperatures). Datasets may also vary in quality, and compilations often ignore the expert knowledge of the authors of the original individual paleoclimate datasets as well as site-specific and proxy-specific effects. Here I review current and recent studies that have used global compilations of temperature related proxy data to infer the glacial and Holocene climate evolution and the temporal and spatial structures of climate variability. I demonstrate how the analysis of large-scale compilations can not only improve our knowledge of the evolution of past climate but also provide insight into the potential and limitations of specific paleoclimate proxies and emphasize the importance of realistic uncertainty estimates.



Item Type
Conference (Invited talk)
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Not peer-reviewed
Publication Status
Published
Event Details
EGU 2019, 07 Apr 2019 - 12 Apr 2019.
Eprint ID
51943
Cite as
Laepple, T. , Ho, S. L. , Münch, T. , Reschke, M. , Rehfeld, K. and Dolman, A. M. (2019): Challenges and potential in the interpretation of global temperature proxy data compilations , EGU 2019, 7 April 2019 - 12 April 2019 .


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info:eu-repo/grantAgreement/EC/H2020/716092


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