Intermagnet Reference Data Set (IRDS) 2018 – Definitive Magnetic Observatory Data

DOI

Definitive digital values of the Earth's mangetic field recorded during 1991..2018 at INTERMAGNET observatories around the world. Data includes minute, hourly and daily vector values, along with observatory baseline values for quality control. Annual means are also included. All data is included on the single downloadable archive files. This is the 28th annual publication in the series. Some national data institutions may have related DOIs that describe subsets of the data. These DOIs are shown under "Related DOIs to be quoted".

Beginning with the publication of the definitive data for 2015, INTERMAGNET stopped publishing individual years of data and started publishing the entire, cumulative definitive data set since INTERMAGNET’s first recorded definitive data in 1991. This data set is known as the "INTERMAGNET Reference Data Set" (IRDS). The IRDS comprises all INTERMAGNET one-minute definitive data since 1991 and is annually updated with a new year and occasional corrections to previous releases. Some national data institutions may have related DOIs that describe subsets of the data. These DOIs are shown under "Related DOIs to be quoted".

File names for IRDS data are formatted in the form mag_def.zip. The mag section of the filename describes the year in which the data was recorded. The def section of the filename describes the most recent annual INTERMAGNET publication in which the data was updated. Files where mag = def have had no corrections since their original publication. For example, "mag2015_def2016" indicates that this file is different from the first release "mag2015_def2015".

For more information on the data formats used in this publication and the technical standards used to create the data, please refer to the INTERMAGNET Technical Manual.

Geomagnetic data is recorded and quality controlled at the institutions responsible for each observatory. Before becoming a member of INTERMAGNET, institutes must make a detailed submission for each observatory that is to join. This submission is verified by a committee in INTERMAGNET before the observatory is admitted. Only data from INTERMAGNET members is published by INTERMAGNET. Each annual definitive data set is checked for quality by a team of data checkers in INTERMAGNET before the data is admitted to the series for that year.

The International Real-time Magnetic Observatory Network (INTERMAGNET) is the global network of observatories, monitoring the Earth's magnetic field. The INTERMAGNET programme exists to establish a global network of cooperating digital magnetic observatories, adopting modern standard specifications for measuring and recording equipment, in order to facilitate data exchange and the production of geomagnetic products in close to real time. INTERMAGNET also coordinates the publication of quality-controlled, definitive geomagnetic data from its affiliated observatories.

Identifier
DOI https://doi.org/10.5880/INTERMAGNET.1991.2018
Related Identifier http://www.intermagnet.org
Related Identifier https://doi.org/10.48440/INTERMAGNET.2020.001
Related Identifier https://doi.org/10.5880/BFO
Related Identifier https://doi.org/10.18715/BCMT.MAG.DEF
Related Identifier https://doi.org/10.2205/SPG2015min-def
Related Identifier https://doi.org/10.2205/SPG2016min-def
Related Identifier https://doi.org/10.2205/SPG2017min-def
Related Identifier https://doi.org/10.7914/sn/nt
Metadata Access http://doidb.wdc-terra.org/oaip/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:doidb.wdc-terra.org:7258
Provenance
Creator INTERMAGNET; Altay-Sayan Branch of Geophysical Survey of Siberian Branch of Russian Academy of Sciences (Russia); Bureau Central de Magnétisme Terrestre, BCMT (France); Beijing Ming Tombs Geomagnetic Observatory Center, Institute of Geology and Geophysics, Chinese Academy of Sciences (China); Bogaziçi University, Kandilli Observatory and Earthquake Research Institute (Turkey); British Antarctic Survey (United Kingdom); British Geological Survey (United Kingdom); Centre de Recherche en Astronomie Astrophysique et Géophysique (Algeria); Department of Geophysics, Faculty of Science, University of Zagreb (Croatia); Dirección Meteorológica de Chile (Chile); École et Observatoire des Sciences de la Terre (France); Finnish Meteorological Institute (Finland); Fundació Observatori de l'Ebre (Spain); Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences (Hungary); Geological and Geophysical Institute of Hungary (Hungary); Geological Institute of Romania (Romania); Geological Survey of Sweden (Sweden); Geophysical Center of the Russian Academy of Sciences (Russia); Geophysical Institute of Slovak Academy of Sciences; Geophysical Institute of the Bulgarian Academy of Sciences (Bulagaria); Geoscience Australia (Australia); GFZ German Research Centre for Geosciences (Germany); Government of South Georgia and the South Sandwich Islands; Halliburton Sperry Drilling (United States of America); Indian Institute of Geomagnetism (India); Institut de Physique du Globe de Paris (France); Institut de Recherche pour le Développement (France); Institut Polaire Français Paul Émile Victor (France); Institute of Cosmophysical Researches and Radio Wave Propagation FEB RAS (Russia); Institute of Geology and Geophysics, Chinese Academy of Sciences (China); Institute of Geophysics of the Vietnamese Academy of Science and Technology (Vietnam); Institute of Geophysics, Academy of Sciences of Czech Republic (Czech Republic); Institute of Geophysics, National Academy of Sciences of Ukraine (Ukraine); Institute of Geophysics, Polish Academy of Sciences (Poland); Institute of Geophysics, Ural Branch of the Russian Academy of Sciences (Russia); Institute of Solar-Terrestrial Physics of Siberian Division of Russian Academy of Science (Russia); Institute of the Ionosphere, National Center of Space Researches and Technologies (Kazakhstan); Instituto Geofísico del Perú (Peru); Instituto Geográfico Nacional (Spain); Irish Meteorological Service (Ireland); Japan Meteorological Agency (Japan); Karlsruhe Institute of Technology (Germany); Korea Meteorological Administration (South Korea); Lanzhou Institute of Seismology of the China Earthquake Administration (China); Ludwig Maximilians University Munich (Germany); National Antarctic Scientific Center, Ministry of Education and Science of Ukraine (Ukraine); National Geophysical Research Institute (India); National Meteorological Service of Argentina (Argentina); National Space Institute, Technical University of Denmark (Denmark); Natural Resources of Canada / Geological Survey of Canada (Canada); Real Instituto y Observatorio de la Armada (Spain); Royal Meteorological Institute (Belgium); Schmidt Institute of Physics of the Earth of Russian Academy of Sciences (Russia); South African National Space Agency (South Africa); Swedish Institute of Space Physics (Sweden); The Institute of Geological & Nuclear Sciences Ltd (New Zealand); The Ministry of Natural Resources, Environment and Meteorology (Samoa); U.S. Geological Survey (USA); Universidad Nacional de La Plata (Argentina); University of Oulu (Finland); University of Stuttgart (Germany); Yu. G. Shafer Institute of Cosmophysical Research and Aeronomy, Siberian Branch of the Russian Academy of Sciences (Russia); Institute of Geology and Mineral Exploration-IGME (Greece); National Institute of Geophysics, Geodesy and Geography of the Bulgarian Academy of Sciences (NIGGG-BAS)(Bulgaria); National Center for Geophysical Research of Lebanon (Lebanon); Institut et Observatoire Geophysique d'Antananarivo IOGA (Madagascar); Universidad Nacional Autonoma de Mexico, Instituto de Geofisica (Mexico); Eotvos Lorand Geophysical Institute of Hungary (Hungary); Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (Russia); Alfred-Wegener-Institut AWI (Germany); Arctic and Antarctic Research Institute AARI (Russia); Observatorio Nacional (Brazil); ZAMG - Zentralanstalt fuer Meteorologie und Geodynamik (Austria); Bundesamt fuer Seeschiffahrt und Hydrographie (Germany); Republic Geodetic Institute (Serbia); Geomagnetic Institute Grocka Serbia); Addis Ababa University AAU (Ethiopia); Ecole et Observatoire des Sciences de la Terre EOST (France); Istituto Nazionale di Geofisica e Vulcanologia INGV (Italy); Danish Meteorological Institute DMI (Denmark); Institut Polaire Francais Paul Emile Victor IPEV (France); Maldives Meteorological Service (Republic of Maldives); China Earthquake Administration of Guangdong province (China); Directorate General of Telecommunications DGT MOTC (Taiwan); National Research Institute of Astronomy and Geophysics NRIAG (Egypt); Saint Petersburg branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences IZMIRAN SpB branch (Russia)
Publisher GFZ Data Services
Contributor INTERMAGNET Secretariat
Publication Year 2021
Rights The data made available through INTERMAGNET are provided for your use and are not for commercial use or sale or distribution to third parties without the written permission of the institute operating the observatory. Publications making use of the da; http://intermagnet.org/data-donnee/data-eng.php#conditions
OpenAccess true
Contact INTERMAGNET Secretariat
Representation
Resource Type Dataset
Discipline Geophysics
Spatial Coverage (-180.000W, -90.000S, 180.000E, 90.000N); AAA (Alma Ata) maintained by: Institute of the Ionosphere, National Center of Space Researches and Technologies; AAE (Addis Ababa) maintained by: Addis Ababa University (AAU); ABG (Alibag) maintained by: Indian Institute of Geomagnetism; ABK (Abisko) maintained by: Geological Survey of Sweden; AIA (Argentine Islands, Akademik Vernadsky base) maintained by: National Antarctic Scientific Center, Ministry of Education and Science of Ukraine; ALE (Alert) maintained by: Geological Survey of Canada; AMS (Amsterdam Island) maintained by: Ecole et Observatoire des Sciences de la Terre (EOST); API (Apia) maintained by: The Ministry of Natural Resources, Environment and Meteorology; AQU (L'Aquila) maintained by: Istituto Nazionale di Geofisica e Vulcanologia (INGV); ARS (Arti) maintained by: Institute of Geophysics, Ural Branch of the Russian Academy of Sciences and Geophysical Center of the Russian Academy of Sciences; ASC (Ascension Island) maintained by: British Geological Survey; ASP (Alice Springs) maintained by: Geoscience Australia; BDV (Budkov) maintained by: Institute of Geophysics, Academy of Sciences of Czech Republic; BEL (Belsk) maintained by: Institute of Geophysics, Polish Academy of Sciences; BFE (Brorfelde) maintained by: Danish Meteorological Institute (DMI); BFO (Black Forest Observatory) maintained by: Karlsruhe Institute of Technology and University of Stuttgart; BLC (Baker Lake) maintained by: Natural Resources of Canada / Geological Survey of Canada; BMT (Beijing Ming Tombs) maintained by: Beijing Ming Tombs Geomagnetic Observatory Center, Institute of Geology and Geophysics, Chinese Academy of Sciences; BNG (Bangui) maintained by: Institut de Recherche pour le Developpement (IRD) and the IPGP - Institut de Physique du Globe de Paris; BOU (Boulder) maintained by: U.S. Geological Survey; BOX (Borok) maintained by: Geophysical Center of the Russian Academy of Sciences; Bureau central de Magnétisme Terrestre, BCMT; BRD (Brandon) maintained by: Natural Resources of Canada / Geological Survey of Canada; BRW (Point Barrow) maintained by: U.S. Geological Survey; BSL (Stennis Space Center) maintained by: U.S. Geological Survey; CBB (Cambridge Bay) maintained by: Natural Resources of Canada / Geological Survey of Canada; CKI (Cocos-Keeling Islands) maintained by: Geoscience Australia; CLF (Chambon la Foret) maintained by: Bureau Central de Magnétisme Terrestre, BCMT; CMO (College) maintained by: U.S. Geological Survey; CNB (Canberra) maintained by: Geoscience Australia; CPL (Choutuppal) maintained by: National Geophysical Research Institute NGRI; CSY (Casey Station) maintained by: Geoscience Australia; CTA (Charters Towers) maintained by: Geoscience Australia; CYG (Cheongyank) maintained by: Korea Meteorological Administration; CZT (Port Alfred) maintained by: Bureau Central de Magnétisme Terrestre, BCMT; DED (Deadhorse) maintained by: U.S. Geological Survey; DLR (Del Rio) maintained by: U.S. Geological Survey; DLT (Dalat) maintained by: Institute of Geophysics of the Vietnamese Academy of Science and Technology; Bureau Central de Magnétisme Terrestre, BCMT; DMC (Dome C / Concordia) maintained by: the Ecole et Observatoire des Sciences de la Terre (EOST) and Istituto Nazionale di Geofisica e Vulcanologia (INGV); DOU (Dourbes) maintained by: Royal Meteorological Institute; DRV (Dumont d'Urville) maintained by: Ecole et Observatoire des Sciences de la Terre (EOST); DUR (Duronia) maintained by: Istituto Nazionale di Geofisica e Vulcanologia; EBR (Ebro) maintained by: Fundació Observatori de l'Ebre; ESK (Eskdalemuir) maintained by: British Geological Survey; EYR (Eyrewell) maintained by: The Institute of Geological & Nuclear Sciences Ltd; FCC (Fort Churchill) maintained by: Natural Resources of Canada / Geological Survey of Canada; FRD (Fredericksburg) maintained by: U.S. Geological Survey; FRN (Fresno) maintained by: U.S. Geological Survey; FUR (Furstenfeldbruck) maintaned by: Ludwig Maximilians University Munich; GAN (Gan) maintained by: Maldives Meteorological service and ETH Zurich and GFZ German Research Centre for Geosciences; GCK (Grocka) maintained by: Geomagnetic Institute Grocka, Republic Geodetic Institute; GDH (Qeqertarsuaq/ Godhavn) maintained by: National Space Institute, Technical University of Denmark; GLN (Glenlea) maintained by: Geological Survey of Canada; GNA (Gnangara) maintained by: Australian Geological Survey Organisation (AGSO), Geoscience Australia; GNG (Gingin) maintained by: Geoscience Australia; GUA (Guam) maintained by: U.S. Geological Survey; GUI (Guimar) maintained by: Instituto Geográfico Nacional; GZH (Zhaoqing) maintained by: Earthquake Administration of Guangdong Province; HAD (Hartland) maintained by: British Geological Survey; HBK (Hartebeesthoek) maintained by: South African National Space Agency; HER (Hermanus) maintained by: South African National Space Agency; HLP (Hel) maintained by: Institute of Geophysics, Polish Academy of Sciences; HON (Honolulu) maintained by: U.S. Geological Survey; HRB (Hurbanovo) maintained by: Geophysical Institute of Slovak Academy of Sciences; HRN (Hornsund) maintained by: Institute of Geophysics, Polish Academy of Sciences; HUA (Huancayo) maintained by: Instituto Geofísico del Perú; HYB (Hyderabad) maintained by: National Geophysical Research Institute(NGRI),GFZ Potsdam; IPM (Isla de Pascua Mataveri, Easter Island) maintained by: Dirección Meteorológica de Chile; Bureau Central de Magnétisme Terrestre, BCMT; IQA (Iqaluit) maintained by: Natural Resources of Canada / Geological Survey of Canada; IRT (Irkutsk) maintained by: Institute of Solar-Terrestrial Physics of Siberian Division of Russian Academy of Science; IZN (Iznic) maintained by: Bogaziçi University, Kandilli Observatory and Earthquake Research Institute; JAI (Jaipur) maintained by: Indian Institute of Geomagnetism; JCO (Jim Carrigan Observatory) maintained by: British Geological Survey and Halliburton Sperry Drilling; KAK (Kakioka) maintained by: Japan Meteorological Agency; KDU (Kakadu) maintained by: Geoscience Australia; KEP (King Edward Point) maintained by: British Geological Survey; KHB (Khabarovsk) maintained by: Institute of Cosmophysical Researches and Radio Wave Propagation FEB RAS; KIV (Kiev) maintained by: Institute of Geophysics, National Academy of Sciences of Ukraine; KMH (Keetmanshoop) maintained by: South African National Space Agency; GFZ German Research Centre for Geosciences; KNY (Kanoya) maintained by: Japan Meteorological Agency; KOU (Kourou) maintained by: Bureau Central de Magnétisme Terrestre, BCMT; LER (Lerwick) maintained by: British Geological Survey; LNP (Lunping) maintained by: Directorate General of Telecommunications (DGT),; LON (Lonjsko Polje Nature Park) maintained by: Department of Geophysics, Faculty of Science, University of Zagreb; LOV (Lovoe) maintained by: Geological Survey of Sweden (SGU); LRM (Learmonth) maintained by: Geoscience Australia; LVV (Lviv) maintained by: Institute of Geophysics, National Academy of Sciences of Ukraine; LYC (Lycksele) maintained by: Geological Survey of Sweden; LZH (Lanzhou) maintained by: Lanzhou Institute of Seismology of the China Earthquake Administration; Bureau Central de Magnétisme Terrestre, BCMT; MAB (Manhay) maintained by: Royal Meteorological Institute; MAW (Mawson) maintained by: Geoscience Australia; MBC (Mould Bay) maintained by: Geological Survey of Canada; MBO (Mbour) maintained by: Bureau Central de Magnétisme Terrestre, BCMT; Institut de Recherche pour le Développement; MCQ (Macquarie Island) maintained by: Geoscience Australia; MEA (Meanook) maintained by: Natural Resources of Canada / Geological Survey of Canada; MGD (Magadan) maintained by: Institute of Cosmophysical Researches and Radio Wave Propagation FEB RAS; MID (Midway) maintained by: U.S. Geological Survey; MLT (Misallat) maintained by: National Research Institute of Astronomy and Geophysics (NRIAG); MMB (Memambetsu) maintained by: Japan Meteorological Agency; NAQ (Narsarsuaq) maintained by: National Space Institute, Technical University of Denmark; NCK (Nagycenk) maintained by: Geodetic and Geophysical Research Institute of the Hungarian Academy of Sciences; NEW (Newport) maintained by: U.S. Geological Survey; NGK (Niemegk) maintained by: GFZ German Research Centre for Geosciences; NUR (Nurmijarvi) maintained by: Finnish Meteorological Institute; NVS (Novosibirsk) maintained by: Altay-Sayan Branch of Geophysical Survey of Siberian Branch of Russian Academy of Sciences; OTT (Ottawa) maintained by: Natural Resources of Canada / Geological Survey of Canada; PAF (Port-Aux-Francais) maintained by: Ecole et Observatoire des Sciences de la Terre (EOST); PAG (Panagjurishte) maintained by: Geophysical Institute of the Bulgarian Academy of Sciences; GFZ German Research Centre for Geosciences; PBQ (Poste-de-la-Baleine) maintained by: Geological Survey of Canada; PEG (Pedeli) maintained by: Institute of Geology and Mineral Exploration-IGME; PET (Paratunka) maintained by: Institute of Cosmophysical Researches and Radio Wave Propagation FEB RAS; PHU (Phuthuy) maintained by: Institute of Geophysics of the Vietnamese Academy of Science and Technology; Bureau Central de Magnétisme Terrestre, BCMT; PIL (Pilar) maintained by: National Meteorological Service of Argentina; PPT (Pamatai) maintained by: Bureau Central de Magnétisme Terrestre, BCMT (France); PST (Port Stanley) maintained by: British Geological Survey; QSB (Qsaybeh) maintained by: National Center for Geophysical Research-CNRS; RES (Resolute Bay) maintained by: Natural Resources of Canada / Geological Survey of Canada; SBA (Scott Base) maintained by: The Institute of Geological & Nuclear Sciences Ltd; SBL (Sable Island) maintained by: British Geological Survey; SFS (San Fernando) maintained by: Real Instituto y Observatorio de la Armada; SHE (Saint Helena) maintained by: GFZ German Research Centre for Geosciences; SHU (Shumagin) maintained by: U.S. Geological Survey; SIT (Sitka) maintained by: U.S. Geological Survey; SJG (San Juan) maintained by: U.S. Geological Survey; SOD (Sodankyla) maintained by: University of Oulu; SPG (Saint Petersburg) maintained by: Saint Petersburg branch of Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation of the Russian Academy of Sciences (IZMIRAN SpB branch) and Geophysical Center of the Russian Academy of Sciences (GC RAS); SPT (San Pablo-Toledo) maintained by: Instituto Geográfico Nacional; STJ (St John's) maintained by: Natural Resources of Canada / Geological Survey of Canada; SUA (Surlari) maintained by: Geological Institute of Romania; GFZ German Research Centre for Geosciences; TAM (Tamanrasset) maintained by: Centre de Recherche en Astronomie Astrophysique et Géophysique; Bureau Central de Magnétisme Terrestre, BCMT; TAN (Antananarivo) maintained by: Institut et Observatoire Geophysique d' Antananarivo (IOGA); TDC (Tristan da Cunha) maintained by: GFZ German Research Centre for Geosciences; National Space Institute, Technical University of Denmark; TEO (Toloyucan) maintained by: Universidad Nacional Autonoma de Mexico (UNAM); Royal Meteorological Institute, Centre de Physique du Globe; THL (Qaanaaq/Thule) maintained by: National Space Institute, Technical University of Denmark; THY (Tihany) maintained by: Geological and Geophysical Institute of Hungary; TIK (Tixie Bay) maintained by: Geomagnetic Variation Laboratory IZMIRAN Troitsk; TRW (Trelew) maintained by: Universidad Nacional de La Plata; Royal Meteorological Institute; TSU (Tsumeb) maintained by: South African National Space Agency; TTB (Tatuoca) maintained by: Brazil Observatorio Nacional and GFZ German Research Centre for Geosciences; TUC (Tucson) maintained by: U.S. Geological Survey; UPS (Uppsala) maintained by: Geological Survey of Sweden; VAL (Valentia) maintained by: Irish Meteorological Service; VIC (Victoria) maintained by: Natural Resources of Canada / Geological Survey of Canada; VNA (Neumayer Station III) maintained by: Alfred-Wegener-Institut (AWI) and GFZ German Research Centre for Geosciences; VOS (Vostok) maintained by: Station "VOSTOK", Arctic and Antarctic Research Institute (AARI) St.Petersburg; VSS (Vassouras) maintained by: Brazil Observatorio Nacional and GFZ German Research Centre for Geosciences; WIC (Conrad) maintained by: ZAMG - Zentralanstalt fuer Meteorologie und Geodynamik; WNG (Wingst) maintained by: Federal Maritime and Hydrographic Agency Hamburg, GFZ German Research Centre for Geosciences; YAK (Yakutsk) maintained by: Yu. G. Shafer Institute of Cosmophysical Research and Aeronomy SB RAS; YKC (Yellowknife) maintained by: Natural Resources of Canada / Geological Survey of Canada
Temporal Coverage Begin 1991-01-01T00:00:00Z
Temporal Coverage End 2018-12-31T00:00:00Z