Date (Creation)

2025-01-07

Date (Revision)

2025-01-07

Date (Publication)

2025-01-07

Date (released)

2025-01-07

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/d093b7b9-f590-48dd-8206-74d239cdbf30

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01973

Codespace

https://data.bas.ac.uk/

Unique resource identifier

NE/T00939X/1

Codespace

award

Other citation details

Please cite this item as: Lowery, K., Dutrieux, P., Holland, P., Hogg, A., Gourmelen, N., & Wallis, B. (2025). Digital Elevation Models and Basal Melt Maps of Pine Island Glacier Ice Shelf using CryoSat-2 Surface Elevation data, 2011-2023 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/d093b7b9-f590-48dd-8206-74d239cdbf30

Credit

No credit.

Status

completed Completed

Maintenance and update frequency

asNeeded As needed

Maintenance note

completed Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
• EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance
• EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers
• EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Growth/Melt
• EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
• EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Mass Balance/Ice Sheet Mass Balance
• EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers
• EARTH SCIENCE > Hydrosphere > Snow/Ice > Ice Growth/Melt

Theme

• CryoSat-2
• Pine Island Glacier
• ice shelf melting
• ice shelves
• remote sensing

Place

• Pine Island Glacier, Amundsen Sea Antarctica

GEMET - INSPIRE themes, version 1.0

• Elevation
• Meteorological geographical features
• Hydrography

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

Data supplied under Open Government Licence v3.0

Use constraints

otherRestrictions Other restrictions

Other constraints

No restrictions apply.

Unique resource identifier

url

Codespace

url

Association Type

crossReference Cross reference

Unique resource identifier

doi

Codespace

doi

Association Type

crossReference Cross reference

Unique resource identifier

url

Codespace

url

Association Type

largerWorkCitation Larger work citation

Spatial representation type

textTable Text, table

Metadata language

engEnglish

Character set

utf8 UTF8

Topic category

• Elevation
• Environment
• Imagery base maps earth cover
• Inland waters
• Oceans

Begin date

2011-07-01

End date

2023-07-31

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

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

dataset Dataset

Statement

Methodology:

DEMs were created using a time-centering method applied to CryoSat-2 SARIn swath processed surface elevation measurements. The dataset contains monthly DEMs, though data within 6 months of the posted month have been used. DEMs have a spatial resolution of 250 m. Elevation is given as height above the WGS84 ellipsoid. Basal melt maps have been calculated using the Lagrangian method. Advection and divergence in this equation were taken from ITS_LIVE annual datasets and surface mass balance changes from RACMO model outputs. Melt maps are also at a 250 m spatial resolution.

CryoSat-2 SARIn data was accessed in March 2023.

ITS_LIVE velocity data prior to 2019 was downloaded in October 2023, using v1. Datasets from 2019 were downloaded in June 2024 and v2 are used.

RACMO2.3p2 output forced the IMAU-FDM v1.2A firn model.

Data quality:

Although the data is posted monthly, each DEM contains a years worth of CryoSat-2 elevation observations which have been time centred on the given month. Each melt map contains a combination of 3 year's worth of elevation data.

In the earlier parts (prior to 2014) of the dataset, some areas of the ice shelf are missing. This is because of a lack of accurate velocity data in these areas.

Missing values are expressed as NaN in the netCDF files.

File identifier

d093b7b9-f590-48dd-8206-74d239cdbf30 XML

Metadata language

engEnglish

Character set

utf8 UTF8

Hierarchy level

dataset Dataset

Hierarchy level name

dataset

Date stamp

2025-01-07

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)