a777e89c-ffcc-4ff4-981c-8f37e5ca84c2 eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2023-07-05 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Sentinel2 satellite imagery and derived geographic locations of emperor penguin colonies in the central and eastern Bellingshausen Sea between October and December, 2022 2023-07-05 creation 2023-07-05 revision 2023-07-05 publication 2023-07-05 released 1.0 https://doi.org/10.5285/a777e89c-ffcc-4ff4-981c-8f37e5ca84c2 doi GB/NERC/BAS/PDC/01756 https://data.bas.ac.uk/ Please cite this item as: Fretwell, P. (2023). Sentinel2 satellite imagery and derived geographic locations of emperor penguin colonies in the central and eastern Bellingshausen Sea between October and December, 2022 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/a777e89c-ffcc-4ff4-981c-8f37e5ca84c2 This dataset comprises Sentinel2 satellite imagery and derived geographic locations of five emperor penguin colonies located in the central and eastern Bellingshausen Sea, between October to December 2022. Medium-resolution satellite data was monitored for the presence of emperor penguin colonies, and when colonies were found, imagery was digitised and downloaded from Copernicus playground. Satellite data indicate early sea ice break-up at three of the four colonies, and the disappearance of the fourth colony. Digitisation and annotation of satellite imagery was carried out by the British Antarctic Survey, and supported by NERC core funding and WWF grant NEB 2181. No credit. completed Fretwell, Peter British Antarctic Survey Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Oceans > Marine Biology > Marine Birds theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Emperor penguin breeding success climate change fast ice sea ice theme Bellinghausen Sea Antarctica Rothschild Island Antarctica Verdi Inlet Antarctica Smyley Island Antarctica Bryant Coast Antarctica Pfogner Point Antarctica place Oceanographic geographical features theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions Data supplied under Open Government Licence v3.0 Satellite data should be credited to Modified Copernicus Sentinel data [2022]/Sentinel Hub otherRestrictions No restrictions apply. url url crossReference textTable eng utf8 biota -89.90583 -72.22934 -73.24911 -69.52092 2022-10-01 2022-12-31 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. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor application/vnd.shp image/jpeg bytes 10217325 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=a777e89c-ffcc-4ff4-981c-8f37e5ca84c2 WWW:LINK-1.0-http--link Get Data Download data download bytes 10217325 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=a777e89c-ffcc-4ff4-981c-8f37e5ca84c2 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Colony locations have been found by medium resolution satellite from over the last ten years. Selected sentinel2 satellite data was visualized and downloaded from Copernicus Sentinel playground as jpeg files. Selection was based on cloud cover and time of year (between October and late December 2022). The shapefiles of colony locations were made by firstly locating colonies within the jpeg digitised imagery, and subsequently retrieving their geographic coordinates by using Antarctic coastline data from the Antarctic Digital Database and freely available satellite mosaics from ESRI WORLD IMAGERY. No populations or size estimates were made from this imagery. Data collection: Copernicus Sentinel2 visualized using Sentinel Playground ArcGIS desktop 10.6 (ESRI 2023) Data quality: Quality of the count data should be regarded as approximate as the methodology of counting numbers of birds from VHR imagery is unproven and although counters get agreement within 5-20 percentage any bias to as yet untested. See related paper. The following jpeg's imagery is only partially loaded. This has not affected the quality of the dataset and associated locations of emperor penguin colonies. asNeeded completed