reference : Ocean surface temperature variability: Large model–data differences at decadal and longer periods

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/reference/c3d91980-51fe-4764-89fc-8ab52a38afa9
Bibliographic fields
reftype Journal Article
Abstract The variability of sea surface temperatures (SSTs) at multidecadal and longer timescales is poorly constrained, primarily because instrumental records are short and proxy records are noisy. Through applying a new noise filtering technique to a global network of late Holocene SST proxies, we estimate SST variability between annual and millennial timescales. Filtered estimates of SST variability obtained from coral, foraminifer, and alkenone records are shown to be consistent with one another and with instrumental records in the frequency bands at which they overlap. General circulation models, however, simulate SST variability that is systematically smaller than instrumental and proxy-based estimates. Discrepancies in variability are largest at low latitudes and increase with timescale, reaching two orders of magnitude for tropical variability at millennial timescales. This result implies major deficiencies in observational estimates or model simulations, or both, and has implications for the attribution of past variations and prediction of future change.
Author Laepple, Thomas; Huybers, Peter
DOI 10.1073/pnas.1412077111
Date November 25, 2014
Issue 47
Journal Proceedings of the National Academy of Sciences of the United States of America
Pages 16682-16687
Title Ocean surface temperature variability: Large model–data differences at decadal and longer periods
Volume 111
Year 2014
Bibliographic identifiers
.reference_type 0
_record_number 21073
_uuid c3d91980-51fe-4764-89fc-8ab52a38afa9