Mechanical and microstructural data from ice deformation experiments with a change in temperature partway

This dataset contains data collected during and after a series of ice deformation experiments. Seven of the experiments are controls, run at a constant temperature of either -2, -7 or -10 degrees celsius, and four involve a change in temperature partway through the experiment. Vertical displacement and temperature data were collected during the experiments, and microstructural data (fabric analyser thin sections) were collected at the conclusion of each experiment.

The experimental methods and our interpretations are described thoroughly in Craw, et al. (in prep).


In folder mechanical_data:

- One .csv file for each experiment containing a header with information on experimental conditions, and columns of data corresponding to time (hours), vertical displacement (mm), and temperature (degrees celsius) throughout the experiment. This is raw data, there will be points recorded from before weights were added at the beginning of the experiment, and after the temperature was lowered at the end.


in folder microstructural_data:

- One .mat file for each experiment, containing microstructural data (spatially indexed Euler orientations) formatted to be read by the MTEX toolbox ( https://mtex-toolbox.github.io/). There is also a file for an example of the starting material, "standard" laboratory ice. These data are converted from the .cis files which are generated by the G50 fabric analyser.

- One .m script (plot_microstructural_data.m) containing commands for plotting spatial maps, histograms of grain size distribution and pole figures of c-axis orientation from the .mat files in this directory.

Simple

Identification info

Alternate title
Mechanical and microstructural data from ice deformation experiments with a change in temperature partway
Date (Publication)
2021-03-11
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/58eedf0d72be9

Originator

Craw, L., Treverrow, A., Fan, S. and Peternell, M.

Publisher

Australian Antarctic Data Centre

Principal investigator

CRAW, LISA
Institute for Marine and Antarctic Studies,
20 Castray Esplanade
Hobart
Tasmania
7004
Australia

Principal investigator

TREVERROW, ADAM

Principal investigator

FAN, SHENG
University of Otago
362 Leith Street
North Dunedin
Dunedin
9016
New Zealand

Principal investigator

PETERNELL, MARK

Collaborator

CRAW, LISA
Institute for Marine and Antarctic Studies,
20 Castray Esplanade
Hobart
Tasmania
7004
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/AAS_4289_temp_change

Purpose
The purpose of this dataset is to establish if there are any lasting effects of previous deformation at higher temperatures on the strain rate and microstructural behaviour of deforming ice.
Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Climatology, meteorology, atmosphere
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2014-07-01 2019-06-30
Title
The temperature change shortcut : effects of mid-experiment temperature changes on the deformation of polycrystalline ice.
Date (Publication)
2020
Citation identifier
https://doi.org/10.5194/tc-2020-318

Author

Craw, L., Treverrow, A., Fan, S., Peternell, M., Cook, S., McCormack, F., and Roberts, J.
Name
The Cryosphere Discuss
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > CRYOSPHERE > SEA ICE > ICE DEFORMATION
  • EARTH SCIENCE > OCEANS > SEA ICE > ICE DEFORMATION
Keywords
  • ICE MICROSTRUCTURE
  • ICE RHEOLOGY
NASA/GCMD Earth Science Keywords
  • ACFA > Automatic C-Axis Fabric Analyzer
NASA/GCMD Earth Science Keywords
  • LABORATORY
NASA/GCMD Earth Science Keywords
  • AMD
  • AMD/AU
  • ACE/CRC
  • CEOS
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN
  • CONTINENT > ANTARCTICA
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other 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_4289_temp_change when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
Free
Planned available datetime
2021-03-11T00:00:00
Units of distribution
MB
Transfer size
395
Distribution format
  • csv, matlab

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download the dataset.

OnLine resource
PROJECT HOME PAGE

Public information for AAS project 4289

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset.

Resource lineage

Statement
Mechanical data contains sudden "steps" in displacement due to increases in applied load every few days during the experiments. These can be removed to avoid sudden spikes in strain rate. Microstructural data collected with a fabric analyser tend to contain artefacts at grain boundaries due to poor data quality. We removed these by filtering out very fine grains (less than 30 μm ), and elongated small grains (those with an aspect ratio less than 3 and equivalent radius less than 100 μm ), and artificially grew grains to fill the empty space. The fine-scale structure of grain boundaries therefore may not be accurate. Dates provided in temporal coverage correspond to the start and end of the project. Values provided in spatial coverage are approximate.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2020-10-26 - record created by Lisa Craw. 2021-03-11 - record updated by Dave Connell to publicly release the data. 2022-04-26 - record updated by Dave Connell for ISO compliance.

Metadata

Metadata identifier
string/AAS_4289_temp_change

Language
English
Character encoding
UTF8

Author

CRAW, LISA
Institute for Marine and Antarctic Studies,
20 Castray Esplanade
Hobart
Tasmania
7004
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
cc4593c6-3860-4002-aa5c-39f8ebcaf61f

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2022-04-26T14:58:42

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/AAS_4289_temp_change

Point of truth for the metadata record

Date info (Creation)
2020-10-26T00:00:00
Date info (Last Update)
2022-04-26

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
S
E
W


Keywords


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