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On the possibility of producing definitive magnetic observatory data within less than one year

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Wybrane pełne teksty z tego czasopisma
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Języki publikacji
EN
Abstrakty
EN
Geomagnetic observatory data are fundamental in geomagnetic field studies and are widely used in other applications. Often they are combined with satellite and ground survey data. Unfortunately, the observatory definitive data are only available with a time lag ranging from several months up to more than a year. The reason for this lag is the annual production of the final calibration values, i.e. baselines that are used to correct preliminary data from continuously recording magnetometers. In this paper, we will show that the preparation of definitive geomagnetic data is possible within a calendar year and presents an original method for prompt and automatic estimation of the observatory baselines. The new baselines, obtained in a mostly automatic manner, are compared with the baselines reported on INTERMAGNET DVDs for the 2009–2011 period. The high quality of the baselines obtained by the proposed method indicates its suitability for data processing in fully automatic observatories when automated absolute instruments will be deployed at remote sites.
Czasopismo
Rocznik
Strony
275--286
Opis fizyczny
Bibliogr. 17 poz.
Twórcy
autor
  • Department of Geophysics, Faculty of Science, University of Zagreb, Zagreb, Croatia
autor
  • Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Potsdam, Germany
Bibliografia
  • 1. Clarke E, Baillie O, Reay SJ, Turbitt CW (2013) A method for the near real-time production of quasi-definitive magnetic observatory data. Earth Planets Space 65(11):1363–1374. doi:10.5047/eps.2013.10.001
  • 2. De Boor C (1978) A practical guide to splines. Springer, New York
  • 3. De Boor C (2003) Spline toolbox for use with MATLAB, The MathWorks, Inc
  • 4. Friis-Christensen E, Lühr H, Hulot G (2006) Swarm: a constellation to study the Earth’s magnetic field. Earth Planets Space 58(4):351–358. doi:10.1186/BF03351933
  • 5. Gonsette A, Rasson J, Marin JL (2013) AUTODIF: automatic absolute DI measurements. In: Proceedings 15th IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing, Boletin ROA, No. 03/13, 16–19
  • 6. Jankowski J, Sucksdorff C (1996) Guide for magnetic measurements and observatory practice. International Association of Geomagnetism and Aeronomy, Boulder
  • 7. Korte M, Mandea M, Linthe HJ, Hemshorn A, Kotzé P, Ricaldi E (2009) New geomagnetic field observations in the South Atlantic Anomaly region. Ann Geophys Italy 52(1):65–81
  • 8. Korte M, Brunke HP, Bronkalla HP, Pulz E (2013), Status of the geomagnetic automated system GAUSS. In: Proceedings 15th IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing, Boletin ROA, No. 03/13, 20–23
  • 9. Lesur V, Macmillan S, Thomson AWP (2006) Deriving main field and secular variation models from synthetic Swarm satellite and observatory data. Earth Planets Space 58(4):409–416. doi:10.1186/BF03351937
  • 10. Macmillan S, Olsen N (2013) Observatory data and the Swarm mission. Earth Planets Space 65(15):1355–1362. doi:10.5047/eps.2013.07.011
  • 11. Mandea M, Korte M (2011) Geomagnetic Observations and Models, IAGA Special Sopron Book Series, Springer, Dordrecht, DOI: 10.1007/978-90-481-9858-0
  • 12. Mandić I, Vujić E, Heilig B, Pelajić I, Herak D (2016) Recent efforts toward the establishment of the Lonjsko Polje geomagnetic observatory. Acta Geophys 64(5):1311–1339. doi:10.1515/acgeo-2016-0051
  • 13. Matzka J (2013) Preparation of quasi definitive (QD) data for the observatories Narsarsuaq, Qeqertarsuaq and Tristan Da Cunha. In: Proceedings 15th IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing, Boletin ROA, No. 03/13, 50–53
  • 14. Olsen N, Haagmans R, Sabaka TJ, Kuvshinov A, Maus S, Purucker ME, Rother M, Lesur V, Mandea M (2006) The swarm end-to-end mission simulator study: a demonstration of separating the various contributions to Earth’s magnetic field using synthetic data. Earth Planets Space 58(4):359–370. doi:10.1186/BF03351934
  • 15. Peltier A, Chulliat A (2010) On the feasibility of promptly producing quasi-definitive magnetic observatory data. Earth Planets Space 62(2):e5–e8. doi:10.5047/eps.2010.02.002
  • 16. Steiner F (1988) Most frequent value procedures. Geophys Trans 34(2–3):139–260
  • 17. St-Louis B (2012) Intermagnet technical reference manual (Version 4.6)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-3c7067b3-b2b5-478d-afc4-f6c33c694bbe
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