Date (Creation)

2024-10-23

Date (Revision)

2024-10-23

Date (Publication)

2024-10-23

Date (released)

2024-10-23

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/af80c82c-b6a0-4978-92e0-efe063c390af

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01923

Codespace

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

Other citation details

Please cite this item as: Gerrish, L., & Ireland, L. (2024). Land cover of Signy Island, consisting of rock outcrop, moraine, lakes, permanent ice and streams, digitised from February 2020 satellite imagery (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/af80c82c-b6a0-4978-92e0-efe063c390af

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
British Antarctic Survey	Gerrish, Laura		Author
British Antarctic Survey	Ireland, Louise		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Land Surface > Land Use/Land Cover > Land Cover
• EARTH SCIENCE > Land Surface > Land Use/Land Cover
• EARTH SCIENCE > Solid Earth > Rocks/Minerals

Theme

• Signy Island

• South Orkney Islands

• lakes

• land cover

• rock outcrop

Place

• South Orkney Islands Antarctica

• Signy Island Antarctica

GEMET - INSPIRE themes, version 1.0

• Land cover
• Geology

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

Data supplied under Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

None

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Larger work citation

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Environment
• Geoscientific information
• Imagery base maps earth cover

Begin date

2020-02-10

End date

2020-02-10

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.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

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

Version

6.18.3

Hierarchy level

Dataset

Statement

Methodology:

The data were manually digitised from a VHR (very high resolution) satellite image acquired on the 10th February 2020. WorldView-2 satellite image (c) 2020 Maxar Technologies. The VHR image was licensed from Maxar with 4 bands. In ArcGIS Pro v3.3.0, an RGB composite was created and this was pansharpened using the higher spatial resolution (50 cm) panchromatic band. This pansharpened composite was then orthorectified to a 5 m Digital Elevation Model extracted from stereo VHR imagery acquired in March 2015. WorldView-3 satellite image (c) 2015 Maxar Technologies.

Also in ArcGIS Pro, the land cover was manually digitised from the orthorectified, pansharpened image. The data creator's interpretation was used in this process and the accuracy cannot be guaranteed for all areas. Moraine and rock outcrop is particularly difficult to distinguish in certain locations. Some of the lakes are ephemeral and will not be present at all times of year or in every year. The streams were digitised in the same way and should always originate from either a lake or an area of permanent ice. The land cover and streams are clipped to a coastline of Signy Island, selected from the Antarctic Digital Database high resolution vector polygons of the Antarctic coastline, https://doi.org/10.5285/9b4fab56-4999-4fe1-b17f-1466e41151c4

The coordinate reference system of the data is UTM Zone 23S, EPSG 32723.

The land cover dataset has an attribute field named 'surface' detailing the type of surface it is showing (rock, ice, lake, moraine) and another field named 'Name' which gives the name of the Lake, if named, with these selected from the UK Antarctic Place-names Committee gazetteer, accessed 20th June 2024.

Data collection:

Processing done using ArcGIS Pro (version 3.3.0)

Data quality:

The data has been manually interpreted and may contain misinterpretations. The data creator used their best knowledge of the island and with some assistance from those who have visited the island in recent years, but there may still be some errors.

Metadata

File identifier

af80c82c-b6a0-4978-92e0-efe063c390af XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2024-10-23

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact