10.5880/Kp.0001 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2021-03-15 urn:ogc:def:crs:EPSG:4326 Geomagnetic Kp index 2021-03-15 revision doi:10.5880/Kp.0001 Matzka, Jürgen GFZ German Research Centre for Geosciences, Potsdam, Germany author Bronkalla, Oliver GFZ German Research Centre for Geosciences, Potsdam, Germany author Tornow, Katrin GFZ German Research Centre for Geosciences, Potsdam, Germany author Elger, Kirsten GFZ German Research Centre for Geosciences, Potsdam, Germany author Stolle, Claudia GFZ German Research Centre for Geosciences, Potsdam, Germany author Geomagnetic Observatory Canberra (CNB) maintained by: Geoscience Australia (Australia) Geoscience Australia, Canberra, Australia originator Geomagnetic Observatory Brorfelde (BFE) maintained by: Technical University of Denmark (Denmark) Technical University of Denmark, Lyngby, Denmark originator Geomagnetic Observatory Eskdalemuir (ESK) maintained by: British Geological Survey (UK) British Geological Survey, Edinburg, UK originator Geomagnetic Observatory Eyrewell (EYR) maintained by: GNS Science (New Zealand) The Institute of Geological & Nuclear Sciences Ltd, Lower Hutt, New Zealand originator Geomagnetic Observatory Fredericksburg (FRD) maintained by: U.S. Geological Survey (US) U.S. Geological Survey, US originator Geomagnetic Observatory Hartland (HAD) maintained by: British Geological Survey (UK) British Geological Survey, UK originator Geomagnetic Observatory Lerwick (LER) maintained by: British Geological Survey (UK) British Geological Survey, UK originator Geomagnetic Observatory Meanook (MEA) maintained by: Natural Resources Canada (Canada) Natural Resources Canada, Canada originator Geomagnetic Observatory Niemegk (NGK) maintained by: GFZ German Research Centre for Geosciences (Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany originator Geomagnetic Observatory Ottawa (OTT) maintained by: Natural Resources Canada (Canada) Natural Resources Canada, Canada originator Geomagnetic Observatory Sitka (SIT) maintained by: U.S. Geological Survey (US) U.S. Geological Survey, US originator Geomagnetic Observatory Uppsala (UPS) maintained by: Geological Survey of Sweden (Sweden) Geological Survey of Sweden, Sweden originator Geomagnetic Observatory Wingst (WNG) maintained by: GFZ German Research Centre for Geosciences (Germany) GFZ German Research Centre for Geosciences, Potsdam, Germany originator GFZ Data Services publisher This data publication includes the IAGA-endorsed Kp index of geomagnetic activity as well as the derived indices ap, Ap, Cp and C9 in their definitive and nowcast version and the International Quiet and Disturbed Days. This dataset is provided by GFZ and derived from indices or near real-time geomagnetic observatory data provided by 13 contributing observatories. The Kp index and the derived products are distributed by GFZ and they are redistributed by various data centers and databases. When using the Kp index or any of the derived products of this dataset, please cite this data publication as well as the accompanying publication Matzka et al. (2021), which serves as a contemporary reference for users and describes the dataset and the state of the Kp index 70 years after its introduction. The Kp index The Kp index was introduced by Bartels (1949). We follow here generally the notation of Bartels (1957). A comprehensive list of references on the Kp index is provided in Matzka et al. (2021), which also describes the near real-time distribution of the indices. DOI and versioning With the introduction of the DOI ‘https://doi.org/10.5880/Kp.0001’ for the dataset, the DOI landing page and the associated FTP server linked to this DOI become the dataset's primary archive (while the other established index distribution mechanisms at GFZ will be maintained in parallel). With the DOI, the dataset can grow with time, but a change of the data, once published, is not possible. If necessity arises in the future to correct already published values, then the corrected dataset will be published with a new DOI. Older DOIs and data sets will then still be available. For each DOI, an additional versioning mechanism will be available to document changes to the files such as format changes, which do not affect the integrity of the data. The DOI 10.5880/Kp.0001 identifies the current version. Complete Matzka, Jürgen GFZ German Research Centre for Geosciences, Potsdam, Germany jmat@gfz-potsdam.de pointOfContact Stolle, Claudia GFZ German Research Centre for Geosciences, Potsdam, Germany claudia.stolle@gfz-potsdam.de pointOfContact Bronkalla, Oliver GFZ German Research Centre for Geosciences, Potsdam, Germany bronki@gfz-potsdam.de pointOfContact Kp Kp index ap index Ap index Cp index C9 index International Quiet and Disturbed Days definitive index nowcast index geomagnetism space weather space physics EARTH SCIENCE > SOLID EARTH > GEOMAGNETISM > GEOMAGNETIC INDICES > KP INDEX EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > GEOMAGNETIC INDICES EARTH SCIENCE > SUN-EARTH INTERACTIONS > IONOSPHERE/MAGNETOSPHERE DYNAMICS > MAGNETIC FIELDS/MAGNETIC CURRENTS NASA/GCMD Earth Science Keywords publication CC BY 4.0 CC BY 4.0 10.1029/2020SW002641 DOI IsDocumentedBy http://isgi.unistra.fr/IAGABulletins/IATME_Bulletin_12b_Herbert_Weisman_Bartels_1949.pdf URL References 10.1016/B978-1-4832-1304-0.50007-5 DOI References eng geoscientificInformation BFE (Brorfelde) maintained by: Technical Universtiy of Denmark (DTU) 11.67 11.67 55.63 55.63 CNB (Canberra) maintained by: Geoscience Australia 149.36 149.36 -35.32 -35.32 ESK (Eskdalemuir) maintained by: British Geological Survey -3.2 -3.2 55.32 55.32 EYR (Eyrewell) maintained by: GNS Sciences Limited 172.393 172.393 -43.474 -43.474 FRD (Fredericksburg) maintained by: U.S. Geological Survey -77.37 -77.37 38.2 38.2 HAD (Hartland) maintained by: British Geological Survey -4.48 -4.48 51 51 LER (Lerwick) maintained by: British Geological Survey -1.18 -1.18 60.13 60.13 MEA (Meanook) maintained by: Natural Resources of Canada / Geological Survey of Canada -113.347 -113.347 54.616 54.616 NGK (Niemegk) maintained by: GFZ German Research Centre for Geosciences 12.68 12.68 52.07 52.07 OTT (Ottawa) maintained by: Natural Resources of Canada / Geological Survey of Canada -75.552 -75.552 45.403 45.403 SIT (Sitka) maintained by: U.S. Geological Survey -135.33 -135.33 57.06 57.06 UPS (Uppsala) maintained by: Geological Survey of Sweden 17.353 17.353 59.903 59.903 WNG (Wingst) maintained by: Federal Maritime and Hydrographic Agency Hamburg, GFZ German Research Centre for Geosciences 9.073 9.073 53.743 53.743 Global coverage of the kp index -180 180 -90 90 1932-01-01 http://doi.org/10.5880/Kp.0001 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information