NERC Data Catalogue Service
Proxy data from the Emerald Lake sediment record on Macquarie Island
The dataset comprises of proxy data from the Emerald Lake sediment record dating back to 12.1ka BP were extracted on Macquarie Island. Three independent methods to reconstruct past changes in Southern Hemisphere Westerly wind (SHW) intensity. Core scanning (ITRAX XRF) and multispectral data (SPECIM) originally published in Saunders et al. (2018) have been updated to the 2020 radiocarbon calibration curve.
This research was funded by NERC Standard grant NE/K004514/1 (D.A.H., S.J.R., L.S.), Swiss National Science Foundation Ambizione Postdoctoral Research Fellowship PZ00P2_136835/1 (K.M.S.), Swiss National Science Foundation Grant 200021_172586 (M.G.) and Australian Antarctic Science grants 3117 and 4156 (K.M.S.). K.M.S. was also supported by PhD funding as part of grant 2663 to A. McMinn, an Australian Postgraduate Award (2004-2008) and an Australian Institute of Nuclear Science and Engineering Postgraduate Research Award.
Simple
- 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 Completed
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Maintenance and update frequency
- asNeeded As needed
- Maintenance note
- completed Completed
- Theme
-
- Lake sediments
- Macquarie Island
- Radiocarbon dating
- Place
-
- Emerald Lake, Macquarie Island Macquarie Island
- GEMET - INSPIRE themes, version 1.0
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations
- Use constraints
- license License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- otherRestrictions 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
- otherRestrictions 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
- otherRestrictions Other restrictions
- Other constraints
- No restrictions apply
- Unique resource identifier
- url
- Codespace
- url
- Association Type
- crossReference Cross reference
- Unique resource identifier
- url
- Codespace
- url
- Association Type
- crossReference Cross reference
- Spatial representation type
- textTable Text, table
- Metadata language
- engEnglish
- Character set
- utf8 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.
Distributor
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Name
- text/csv
- Name
- text/plain
- Name
- application/pdf
- Units of distribution
- bytes
- Transfer size
- 2411725
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Units of distribution
- bytes
- Transfer size
- 2411725
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Units of distribution
- bytes
- Transfer size
- 2411725
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Hierarchy level
- dataset 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.
- File identifier
- 85c30cc3-6ce6-4a3d-be60-0bddbe69e5bb XML
- Metadata language
- engEnglish
- Character set
- utf8 UTF8
- Hierarchy level
- dataset 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)
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
Overviews
Spatial extent
Provided by
