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Southern Hemisphere winter sea ice concentration simulated by HadCM3 to best explain the early last interglacial Antarctic isotope peak

The file contains Southern Hemisphere winter (September) sea ice concentration (sic) from a simulation performed using the isotope-enabled HadCM3 climate model forced with early last interglacial boundary conditions, centred approximately 128,000 years ago. The resulting sic represents a reduction in winter sea ice area of approximately 54% relative to pre-industrial and is proposed as the best explanation for the Antarctic ice core data from 128,000 years ago. The spatial pattern of sea ice retreat was determined using a large ensemble of model experiments and a pattern search optimization approach to match the last interglacial ice core isotope peak. Further details can be found in the published manuscript (https://doi.org/10.1002/2017GL074594).

This work was funded by NERC grants NE/P009271/1, NE/P013279/1, and NE/K004514/1.

Simple

Date (Creation)
2018-05-23
Date (Revision)
2018-05-23
Date (Publication)
2018-05-23
Date (released)
2018-05-23
Edition
None
Unique resource identifier
https://doi.org/10.5285/0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d
Codespace
doi
Unique resource identifier
GB/NERC/BAS/PDC/01084
Codespace
https://data.bas.ac.uk/
Unique resource identifier
NE/P009271/1
Codespace
award
Unique resource identifier
NE/P013279/1
Codespace
award
Unique resource identifier
NE/K004514/1
Codespace
award
Other citation details
Please cite this item as: Holloway, M. (2018). Southern Hemisphere winter sea ice concentration simulated by HadCM3 to best explain the early last interglacial Antarctic isotope peak (Version None) [Data set]. Polar Data Centre, Natural Environment Research Council, UK Research & Innovation, UK. https://doi.org/10.5285/0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d
Credit
No credit.
Status
completed Completed
Author
  British Antarctic Survey - Sime, Louise ( Researcher )
Author
  British Antarctic Survey - Holloway, Max ( Researcher )
Point of contact
  NERC EDS UK Polar Data Centre
British Antarctic Survey, High Cross, Madingley Road , Cambridge , Cambridgeshire , CB3 0ET , United Kingdom
+44 (0)1223 221400
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
Global Change Master Directory (GCMD) Science Keywords
  • EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
  • EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
  • EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes
  • EARTH SCIENCE > Paleoclimate > Paleoclimate Reconstructions
Theme
  • Antarctic
  • Ice core
  • Isotope
  • Last interglacial
  • Southern Hemisphere sea ice
Place
  • Southern Ocean Antarctica
GEMET - INSPIRE themes, version 1.0
  • Oceanographic geographical features
  • Geology
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
This data is governed by the NERC data policy and supplied under Open Government Licence v3
Use constraints
otherRestrictions Other restrictions
Other constraints

No restrictions apply to this dataset.

Access to the Met Office Unified Model source code is available under license from the Met Office at http://www.metoffice.gov.uk/ research/collaboration/um-collaboration. The climate model data are available on request from http://www.bridge.bris.ac.uk/resources/simulations.

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
  • Climatology, meteorology, atmosphere
  • Environment
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S
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W
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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.
Date (Publication)
2008-11-12
Publisher
  European Petroleum Survey Group
https://www.epsg-registry.org/
Unique resource identifier
urn:ogc:def:crs:EPSG::3031
Version
6.18.3

Distributor

Distributor
  NERC EDS UK Polar Data Centre
British Antarctic Survey, High Cross, Madingley Road , Cambridge , Cambridgeshire , CB3 0ET , United Kingdom
+44 (0)1223 221400
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
Units of distribution
bytes
Transfer size
1
OnLine resource
Get Data ( WWW:LINK-1.0-http--link )

Download data

Hierarchy level
dataset Dataset
Statement

Methodology:

This is output from a simulation using the isotope-enabled HadCM3 climate model forced with early last interglacial boundary conditions (orbital configuration and greenhouse-gas concentrations), centred approximately 128,000 years ago. Sea ice concentration has been re-gridded from the native global model grid to a higher resolution latitude-longitude grid covering the latitude range from 52.5 to 80.5 deg S. Further details can be found in the published manuscript (https://doi.org/10.1002/2017GL074594).

Data quality:

Masked NaN values represent grid points that are land.

The grid is 1445x113 in longitude, latitude.

File identifier
0f3d9228-2f4a-4f2c-bbe6-ee8a123db58d XML
Metadata language
engEnglish
Character set
utf8 UTF8
Hierarchy level
dataset Dataset
Hierarchy level name
dataset
Date stamp
2018-05-23
Metadata standard name
ISO 19115 Geographic Information - Metadata
Metadata standard version
ISO 19115:2003(E)
Point of contact
  NERC EDS UK Polar Data Centre
British Antarctic Survey, High Cross, Madingley Road , Cambridge , Cambridgeshire , CB3 0ET , United Kingdom
+44 (0)1223 221400
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

Antarctic Ice core Isotope Last interglacial Southern Hemisphere sea ice
GEMET - INSPIRE themes, version 1.0
Geology Oceanographic geographical features
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration EARTH SCIENCE > Paleoclimate > Ice Core Records > Isotopes EARTH SCIENCE > Paleoclimate > Paleoclimate Reconstructions

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