Metadata details
AAS_4537_DSS1617_Bubble_Free_Layers
All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).
- Citation
- Vance, T.R., Zhang, L., Fraser, A., Jong, L.M. and Thompson, S.S. (2023) Bubble free layers in a Law Dome ice core (DSS1617), East Antarctica, Ver. 1, Australian Antarctic Data Centre - doi:10.26179/5vnb-zc56, Accessed: 2026-06-16
- Title
- Bubble free layers in a Law Dome ice core (DSS1617), East Antarctica
- Data Centre
- Australian Antarctic Data Centre, Australia
- DOI
- doi:10.26179/5vnb-zc56
- Created Date
- 2023-09-12
- Revision Date
- 2025-01-15
- Parent record
- DSS_2k_data_compilation
Datasets and documents
Related links
Description
This collection describes the identification of bubble free layers from ultra high resolution ice core images of the DSS1617 ice core from Law Dome, East Antarctica. The compilation comprises 30 image files from Intermediate Layer Ice Core scanning of the DSS1617 ice cores, as well as three text files.
The first text file, "DSS1617_Annual_Horizons.txt", provides the annual layer horizon depths (age-by-depth chronology) of a surface core from the Dome Summit South site, DSS1617. Column 1 is the annual horizon year, and column 2 is the depth (in metres) of this annual horizon in the DSS1617 core.
The second text file, named "DSS1617_BFL_depths.txt", is a single column of the depths in metres of all bubble free layers identified in Zhang et al. (2023).
The third text file, named "DSS1617_ice_core_images_details.txt" provides all the information to be able to find the bubble free layers and assign their depth and age from the DSS1617 chronology. This file has four columns of information. Column 1 is the name of each image file, column 2 is the name of the ice core shown in the image file, column 3 is the top depth (metres) of that ice core shown in the image, and column 4 is the bottom depth (metres) of the ice core shown in the image.
The three text files used in combination with the 30 ILCS ice core image files enable the user to compile all stratigraphic information (such as bubble free layers) by age and depth in the DSS1617 ice core, according to the chronology developed in Jong et al. (2022).
Purpose
This dataset enables the user to compile all stratigraphic information (such as bubble free layers) by age and depth in the DSS1617 ice core, according to the chronology developed in Jong et al. (2022).
Access
These data are publicly available for download from the provided URL.
Temporal Coverages
- Start date: 2017-01-01 - Stop date: 2017-03-01
Spatial Coverages
Science Keywords
- EARTH SCIENCE > CLIMATE INDICATORS > PALEOCLIMATE INDICATORS > ICE CORE RECORDS > ICE CORE AIR BUBBLES
- EARTH SCIENCE > PALEOCLIMATE > ICE CORE RECORDS > ICE CORE AIR BUBBLES
- EARTH SCIENCE > CLIMATE INDICATORS > PALEOCLIMATE INDICATORS > ICE CORE RECORDS
Additional Keywords
- None
Locations
- GEOGRAPHIC REGION > POLAR
- CONTINENT > ANTARCTICA > LAW DOME
Platforms
- FIELD SURVEYS
- LABORATORY
Instruments
- CORING DEVICES
- CAMERAS
Researchers
- vance, tessa (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
- zhang, lingwei (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
- fraser, alexander (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)
- jong, lenneke (INVESTIGATOR,DIF AUTHOR)
- thompson, sarah (INVESTIGATOR)
Use Constraints
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/).
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4537_DSS1617_Bubble_Free_Layers when using these data.
