Data from the Arctic biomarker IP25 and associated open water and marginal ice zone biomarkers brassicasterol and HBI III from the eastern Bering Sea during the Pleistocene

This data set comprises sea ice-related biomarkers for three time intervals, corresponding to the pre-MPT (1.53-1.36 Ma), the MPT (1.22-0.8 Ma), and the post-MPT (0.5-0.34 Ma) climate cycles from International Ocean Discovery Program (IODP) Site U1343 in the eastern Bering Sea (57deg33.4''N, 176deg49.0''W, 1950 m water depth). The biomarkers are the Arctic sea ice biomarker IP25, together with HBI III and brassicasterol, indicative of open water in the ice marginal zone and general phytoplankton production, respectively.

Funding was provided by the NERC grant NE/L002434/1.

Alternate title: Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01048

Date (Publication): 2020-01-29

Citation identifier: http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01048

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey		pdc@bas.ac.uk	Custodian
Polar Data Centre, Natural Environment Research Council, UK	Detlet, H. et al	pdc@bas.ac.uk	Originator

Maintenance and update frequency: Unknown

Keywords

NDGO0001

NERC OAI Harvesting

NERC_DDC

GCMD Parameter Valids

EARTH SCIENCE > Cryosphere > Sea Ice > Ice Extent
EARTH SCIENCE > Oceans > Marine Sediments > Sediment Chemistry
EARTH SCIENCE > Oceans > Ocean Chemistry > Marine Geochemistry
EARTH SCIENCE > Paleoclimate > Paleoclimate Reconstructions

BAS Free-text keywords

Bering Sea
Biomarker
IP25
Mid-Pleistocene transition
Sea ice

Use limitation: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Access constraints: Other restrictions

Other constraints: This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.

Language: English

Topic category

Climatology, meteorology, atmosphere
Geoscientific information

Begin date: unknown

End date: unknown

Reference system identifier: OGP / urn:ogc:def:crs:EPSG::4326

Distribution format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Polar Data Centre - British Antarctic Survey		pdc@bas.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
http	https://ramadda.data.bas.ac.uk/repository/entry/show/?entryid=9caf74c4-7054-4539-81b8-d4f942afc358	GET DATA

Hierarchy level: Dataset

Domain consistency

Measure identification: INSPIRE / Conformity_001

Conformance result

Title: INSPIRE Data Specification on unknown theme Guidelines

Date

Explanation: See the referenced specification

Pass: No

Statement: A procedural blank was added to each extraction batch to screen for contamination. The 4-year instrumental uncertainty is < 10%.

The average sample resolution for all three time intervals is 5 ka, however, the sample resolution is highly variable.