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6k North Atlantic Sea-Surface Temperatures Entry ID: 6K_N_ATLANTIC_SST |
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Summary
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Abstract:
The 6k data are based on two types of data: 1) alkenones, a geochemical proxy, and 2) transfer function estimates of sea-surface temperature based on faunal assemblages of planktic foraminifers. All alkenone data have previously been compiled within the GHOST project (Kim et al., 2004a,b) (http://www.pangaea.de/Projects/GHOST/). For the foraminiferal data, raw census data were composed and two different transfer function techniques (Maximum Likelihood (ML) and the Modern Analog Technique (MAT)) were used to calculate the sea-surface temperatures to illustrate, at least to some extent, the magnitude of the differences in estimated SST that are related to the choice of calculation method. Hence, in the data set you will find both the two separate calculations for the foraminifers as well as the average 6k value combining data from the two different techniques. When it comes to errors of different SST estimation techniques, it is fair to say that most methods operate with a statistical error close to +- 1 degree C. However, due to the geographical autocorrelation these types of data possess, the assumption of data independence is violated and the errors are most likely underestimated. There are 17 alkenone records and 12 foraminiferal records in the data set. From a few of the cores present in the data set have both alkenone and foraminiferal data have been derived. The data set is presented on three work sheets in an Excel workbook. The fist page contains average values for 6k, as well as modern atlas data for the selected sites, whereas the second and third sheets contain the actual Holocene time series of alkenone and planktic foraminiferal data, respectively. |
Related URL
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Link:
GET DATA
Description: Access to 6k North Atlantic sea-surface temperatures data and documentation Link: VIEW PROJECT HOME PAGE Description: Paleoclimate Modelling Intercomparison Project Phase II home page Link: VIEW RELATED INFORMATION Description: Additional paleogeographic databases at the University of Bristol Link: VIEW RELATED INFORMATION Description: Global Holocene Spatial and Temporal Climate Variability (GHOST) Note: site is in German. Data is also available for Holocene SST data and 10ka SST data |
Geographic Coverage
| N: 90.0 | S: -90.0 | E: 180.0 | W: -180.0 |
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Data Set Citation
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Dataset Originator/Creator:
Kim, J.-H. and R.R. Schneider
Dataset Title: 6k North Atlantic sea-surface temperatures Dataset Series Name: Paleoclimate Modelling Intercomparison Project (PMIP) Phase II Dataset Release Place: France Dataset Publisher: PMIP 2 Online Resource: http://www-lsce.cea.fr/pmip2/synth/northatlantic6ksst.shtml |
Paleo_Temporal_Coverage
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Paleo Start Date:
6000 ybp
Paleo Stop Date: 0 ybp Chrono Unit: |
Location Keywords
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GEOGRAPHIC REGION
> GLOBAL OCEAN
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Science Keywords
| OCEANS >OCEAN TEMPERATURE >SEA SURFACE TEMPERATURE [Definition] |
| PALEOCLIMATE >OCEAN/LAKE RECORDS >MICROFOSSILS [Definition] |
| PALEOCLIMATE >PALEOCLIMATE RECONSTRUCTIONS >SEA SURFACE TEMPERATURE RECONSTRUCTION [Definition] |
| BIOLOGICAL CLASSIFICATION >PROTISTS >AMOEBOIDS >FORAMINIFERS [Definition] |
ISO Topic Category
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CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION OCEANS |
Project
| IPCC >Intergovernmental Panel on Climate Change [Information] |
| PMIP >Paleoclimate Modelling Intercomparison Project [Information] |
| GHOST >Global Holocene Spatial and Temporal Climate Variability [Information] |
Access Constraints
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In order to download the data you will need a password. You can obtain the password by contacting Carin Andersson (carin dot andersson at bjerknes dot uib dot no). |
Use Constraints
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If you wish to use these data as a diagnostic, please cite Kim et al., (2004a,b) , and this website (http://www.bridge.bris.ac.uk/resources/databases.htm) as the source. |
Keywords
| SST reconstruction |
| alkenones |
| planktic foraminifers |
| GHOST project |
Data Set Progress
| IN WORK |
Originating Center
| U. Bristol |
Data Center
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Paleoclimate Modelling Intercomparison Project
[Information]
Data Center URL: http://pmip.lsce.ipsl.fr/
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Distribution
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Distribution_Media:
online
Distribution_Size: 273 kb Distribution_Format: Excel Fees: none |
Personnel
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SANDY
P.
HARRISON Role: TECHNICAL CONTACT Phone: +44 (0)117 33 17223 Fax: +44 (0)117 928 7878 Email: sandy.harrison at bristol.ac.uk Contact Address: BRIDGE School of Geographical Sciences University of Bristol University Road City: Bristol Postal Code: BS8 1SS Country: United Kingdom |
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MARK
CREIGHTON Role: TECHNICAL CONTACT Email: mark.creighton at bristol.ac.uk Contact Address: BRIDGE School of Geographical Sciences University of Bristol University Roa City: Bristol Postal Code: BS8 1SS Country: United Kingdom |
Publications/References
Kim, J.-H. and R.R. Schneider (2004a), A GHOST global database for alkenone-derived 6ka sea-surface temperatures., http://www.pangaea.de/Projects/GHOST/
Kim, J.-H. and R.R. Schneider (2004b), GHOST global database for alkenone-derived Holocene sea-surface temperature records, http://www.pangaea.de/Projects/GHOST/
Kim, J.-H. and R.R. Schneider (2004), GHOST global database for alkenone-derived 10ka sea-surface temperatures, http://www.pangaea.de/Projects/GHOST/.
Kim, J.-H. and R.R. Schneider (2004b), GHOST global database for alkenone-derived Holocene sea-surface temperature records, http://www.pangaea.de/Projects/GHOST/
Kim, J.-H. and R.R. Schneider (2004), GHOST global database for alkenone-derived 10ka sea-surface temperatures, http://www.pangaea.de/Projects/GHOST/.
Creation and Review Dates
DIF Creation Date:
2006-10-18
Last DIF Revision Date:
2011-04-07
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