Date (Creation)

2022-12-21

Date (Revision)

2022-12-21

Date (Publication)

2022-12-21

Date (released)

2022-12-21

Edition

1

Unique resource identifier

https://doi.org/10.5285/85c30cc3-6ce6-4a3d-be60-0bddbe69e5bb

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01699

Codespace

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

Unique resource identifier

NE/K004514/1

Codespace

award

Other citation details

Please cite this item as: short doi:10/jzr3

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Roberts, Stephen		Author
University of Bern	Saunders, Krystyna		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 > Radiocarbon
• EARTH SCIENCE > Paleoclimate > Land Records > Sediments

Theme

• Lake sediments

• Macquarie Island

• Radiocarbon dating

Place

• Emerald Lake, Macquarie Island Macquarie Island

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., & Saunders, K. (2023). Proxy data from the Emerald Lake sediment record on Macquarie Island (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/85C30CC3-6CE6-4A3D-BE60-0BDDBE69E5BB

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

2006-11-01

End date

2013-11-30

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:

A series of lake sediment cores dating back to c. 12.1 ka BP were extracted from Emerald Lake on the west coast of sub-Antarctic Macquarie Island. We applied three independent methods to reconstruct past changes in Southern Hemisphere Westerly wind (SHW) intensity.

1) To reconstruct past sea salt aerosol inputs, we developed a method to track past changes in lake water conductivity (a function of sea salt aerosol input) using diatom-based inference models.

2) ITRAX XRF core scanning (XRFCS) analysis was used to track inputs of minerogenic aerosols into the lake, focusing on Ti as the most widely used indicator of allochthonous inputs

3) Cores were scanned using a Specim hyperspectral camera, which measures reflected optical properties between wavelengths from 400-1000 nm. The ratio of reflectance between 850 and 900 nm (R850/R900) was used as an additional indicator of minerogenic inputs

We have updated the age depth model in Saunders et al. (2018) and applied this update to these datasets. Recalibration and age depth models have been updated to 2020 calibration curves (Sh20) in the R package BACON v. 2.5 for Bayesian age-depth modelling (Blaauw and Christen, 2011).

Data quality:

Age data includes minimum and maximum 95% confidence interval ranges.

Metadata

File identifier

85c30cc3-6ce6-4a3d-be60-0bddbe69e5bb XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2022-12-21

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