f0149848-bd81-4a3e-ac20-67d347e7d480 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 2020-03-04 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 Ionospheric vorticity across the northern polar ionosphere determined from SuperDARN velocity data - 2000 to 2005 inclusive 2020-03-04 creation 2020-03-04 revision 2020-03-04 publication 2020-03-04 released 1.0 https://doi.org/10.5285/f0149848-bd81-4a3e-ac20-67d347e7d480 doi GB/NERC/BAS/PDC/01313 https://data.bas.ac.uk/ Please cite this item as: Chisham, G. (2020). Ionospheric vorticity across the northern polar ionosphere determined from SuperDARN velocity data - 2000 to 2005 inclusive (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/f0149848-bd81-4a3e-ac20-67d347e7d480 The data set comprises of ionospheric vorticity estimates determined from measurements of ionospheric velocity made by the Super Dual Auroral Radar Network (SuperDARN). The vorticity estimates have been determined across the whole of the northern hemisphere polar ionosphere. The data cover the interval from 2000 to 2005 inclusive. No credit. completed Chisham, Gareth 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 > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Electric Fields/Electric Currents EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Magnetic Fields/Magnetic Currents EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics > Solar Wind EARTH SCIENCE > Sun-earth Interactions > Ionosphere/Magnetosphere Dynamics 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 SuperDARN ionosphere vorticity theme Canada, USA, and Iceland Ionosphere place Atmospheric conditions 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 This data is supplied under Open Government Licence v3.0 url url largerWorkCitation doi doi crossReference url url largerWorkCitation url url crossReference textTable eng utf8 climatologyMeteorologyAtmosphere environment geoscientificInformation -150.0 -20.0 50.0 90.0 2000-01-01 2005-12-31 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 text/plain bytes 336592896 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=f0149848-bd81-4a3e-ac20-67d347e7d480 WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: The vorticity estimates are determined by identifying SuperDARN velocity measurements around spatially closed loops determined by the geometry of the SuperDARN beam look directions. The vorticity at the centre of these closed loops is determined from the velocity around the loops by using Stokes' theorem. The vorticity determination methodology is outlined in Chisham et al. (2009). Data collection: The analysis uses SuperDARN data from the Kodiak, Prince George, Saskatoon, Kapuskasing, Stokkseyri and Goose Bay SuperDARN radars. The raw data were analysed using the SuperDARN FitACF v2.5. The data were mapped using the Chisham et al.(2008) virtual height model. The data are presented in Altitude-Adjusted Corrected GeoMagnetic (AACGM) co-ordinates. Data quality: The overall quality of the vorticity estimates is highly dependent on the raw SuperDARN velocity data that provide the primary data source. These are generally of high quality with low errors. The quality of the vorticity estimates is mostly affected by missing velocity data. To mitigate this the vorticity estimates are only determined when adequate SuperDARN velocity data are available. See Chisham et al. (2009) for full details regarding data quality. asNeeded completed