Date (Creation)

2023-02-21

Date (Revision)

2023-02-21

Date (Publication)

2023-02-21

Date (released)

2023-02-21

Edition

1

Unique resource identifier

https://doi.org/10.5285/621cf434-1517-4b36-887d-4285315af695

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01716

Codespace

https://data.bas.ac.uk/

Other citation details

Please cite this item as: Short doi: 10/jzr5

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Roberts, Stephen		Author
Newcastle University	Pearson, Emma		Author
Royal Holloway University of London	Gabriel, Imogen		Author
Royal Holloway University of London	Blockley, Simon		Author
British Antarctic Survey	Foster, Louise		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Paleoclimate > Land Records > Stratigraphic Sequence
• EARTH SCIENCE > Paleoclimate > Ocean/Lake Records > Radiocarbon
• EARTH SCIENCE > Paleoclimate > Paleoclimate Reconstructions > Air Temperature Reconstruction

Theme

• South Shetland islands

• radiocarbon dating

• stratigraphy

• temperature reconstruction

• tephra

Place

• Fildes Peninsula, South Shetland Islands South Shetland Islands

GEMET - INSPIRE themes, version 1.0

• Geology

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/

Use constraints

Other restrictions

Other constraints

Roberts, S., Pearson, E., Gabriel, I., Blockley, S., Foster, L.(2023). Reconstructed temperature and tephra deposit age data from Yanou Lake, Fildes Peninsula, South Shetland Islands, northern Antarctic Peninsula.

(Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/621cf434-1517-4b36-887d-4285315af695

Use constraints

Other restrictions

Other constraints

No restrictions apply

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Geoscientific information

Begin date

2007-11-01

End date

2016-11-30

Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

Dataset

Statement

Methodology:

Glycerol dialkyl glycerol tetraether (GDGT) analysis of freshwater-brackish sediments from Yanou Lake dating to c. 6 ka was used to reconstruct mean summer air temperature (MSAT) and MSAT anomaly profiles (relative to the pre-industrial mean 1-0.25 cal. ka BP; RMSE = 2.45 degrees C; Pearson et al., 2011; Foster et al., 2016; Roberts et al., 2017). The published GDGT palaeotemperature reconstructions for Yanou Lake in Roberts et al. (2017) overestimated MSAT for data older than 2000 years due to a lack of data at the upper end of the Foster et al. (2016) Antarctic calibration dataset. Therefore, we constructed a new MSAT anomaly profile by combining GDGT-MSAT data from the global (Pearson et al., 2011) and Antarctic (Foster et al., 2016) GDGT calibration datasets and applied a new regression model based on the same compounds used in both (Juggins pers. comm). This produced a revised mean MSAT anomaly of 0.06 +/- 1.50 degrees C for the last 6,000 years of the Yanou Lake record, which is of a similar magnitude to the James Ross Island ice core mean annual temperature anomaly of 0.01 plus/minus 0.35 degrees C in the same period.

Revised modelled ages for tephra deposits in the Yanou Lake record were produced using 2020 calibration curves and Bayesian age-depth modelling in BACON v. 2.5 in R (Blaauw and Christen, 2011).

Data quality:

RMSE = 2.45±1.44 °C and 1.74±1.44 °C for global calibration temperature reconstructions and Antarctic/revised global+Antarctic calibration temperature reconstructions

Metadata

File identifier

621cf434-1517-4b36-887d-4285315af695 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2023-02-21

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact