GB_NERC_BAS_PDC_01062
English
dataset
British Antarctic Survey
+44 (0)1223 221400
pdc@bas.ac.uk
pointOfContact
2020-01-29
NERC profile of ISO19115:2003
1.0
http://www.antarctica.ac.uk/dms/metadata.php?id=GB/NERC/BAS/PDC/01062
urn:ogc:def:crs:EPSG::4326
OGP
Borehole density profiles reconstructed from calibrated optical televiewer (OPTV) logs from the northern sector of Larsen C Ice Shelf, Antarctica
Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01062
2020-01-29
publication
GB/NERC/BAS/PDC/01062
http://www.antarctica.ac.uk/dms/metadata.php?id=
These are vertical density profiles of snow, firn and ice reconstructed from the vertical luminosity trace of digital optical televiewer (OPTV) logs of five boreholes drilled by hot water to ~100 m depth in Larsen C Ice Shelf, Antarctica. Boreholes were drilled in austral summers of 2014 and 2015 in order to investigate the internal properties of the ice shelf, and specifically the influence of surface melting and melt pond formation on those properties.
These data are part of the NERC-funded MIDAS (''Impact of surface melt and ponding on ice shelf dynamics and stability'') research project, with grant references NE/L006707/1 and NE/L005409/1. The associated borehole OPTV logs and temperature profiles are also available, as are other MIDAS datasets.
British Antarctic Survey
+44 (0)1223 221400
High Cross, Madingley Road
Cambridge
CB3 0ET
UK
pdc@bas.ac.uk
custodian
Hubbard, B., & Ashmore, D.
Polar Data Centre, Natural Environment Research Council, UK
+44 (0)1223 221400
High Cross, Madingley
Cambridge
CB3 0ET
UK
pdc@bas.ac.uk
originator
unknown
NDGO0001
NERC_DDC
NERC OAI Harvesting
2020-01-29
revision
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers
EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Ice Sheets
EARTH SCIENCE > Cryosphere > Snow/Ice > Snow Density
GCMD Parameter Valids
2020-01-29
revision
Antarctica
Ice boreholes
Ice shelf density
Larsen C Ice Shelf
Optical televiewer
BAS Free-text keywords
2020-01-29
revision
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/.
otherRestrictions
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/.
English
climatologyMeteorologyAtmosphere
environment
-64.953
-61.486
-67.5
-66.403
2014-11-01
2015-12-31
Polar Data Centre - British Antarctic Survey
+44 (0)1223 221400
pdc@bas.ac.uk
distributor
https://www.projectmidas.org/
information
dataset
Conformity_001
INSPIRE
INSPIRE Data Specification on unknown theme Guidelines
See the referenced specification
false
Density traces are provided at the same resolution, and subject to the same logging errors, as the field OPTV logs. The OPTV technique is described by Hubbard and others (2008).
Most OPTV logs, and hence density profiles, are at a vertical resolution of 1 mm.