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Volume 58 Supplement 6

Special Issue: Ground Magnetic Observations: New technologies and the role in understanding the Earth System

Geomagnetic survey and geomagnetic model research in China

Earth, Planets and Space volume 58, pages 741–750 (2006)Cite this article

Abstract

The geomagnetic survey at 135 stations in China were carried out in 2003. These stations are with better environmental condition and small magnetic field gradient (<5 nT/m). In the field survey, the geomagnetic declination D, the inclination I and the total intensity F were measured. Ashtech ProMark2 differential GPS (Global Positioning System) was used in measuring the azimuth, the longitude, the latitude and the elevation at these stations. The accuracy of the azimuth is 0.1′. The geomagnetic survey data were reduced using the data at geomagnetic observatories in China. The mean standard deviations of the geomagnetic reduced values are: <1.5 nT for F, <0.5′ for D and I. Using the geomagnetic data which include the data at 135 stations and 35 observatories in China, and the data at 38 IGRF (International Geomagnetic Reference Field) calculation points in China’s adjacent regions, the Taylor polynomial model and the spherical cap harmonic model were calculated for the geomagnetic field in China. The truncation order of the Taylor polynomial model is 5, and its original point is at 36.0°N and 104.5°E. Based on the geomagnetic anomalous values and using the method of spherical cap harmonic (SCH) analysis, the SCH model of the geomagnetic anomalous field was derived. In the SCH model, the pole of the spherical cap is at 36.0°N and 104.5°E, and the half-angle is 30°, the truncation order K= 8 is determined according to the mean square deviation between the model calculation value and the observation value, the AIC (Akaike Information Criterion) and the distribution of geomagnetic field.

References

  • Akaike, H., A new look at the statiscal model identification, IEEE transactions on Automatic Control, 19(6), 716–723, 1974.

    Article  Google Scholar 

  • Alldredge, L., On regional magnetic charts, J. Geomag. Geoelectr., 39, 723–738, 1987.

    Article  Google Scholar 

  • An, Z., Review on geomagnetic survey, geomagnetic chart and model in China, Chinese J. Geophys., 44 (supplement), 45–50, 2001.

    Google Scholar 

  • An, Z., Y. Xu, and Y. Wang, Derivation and analysis of the main geomagnetic field model in China for 1950–1980, Chinese J. Geophys. (ACTA Geophysica Sinica), 34, 585–593, 1991 (in Chinese).

    Google Scholar 

  • Barton, C., Global and regional geomagnetic reference fields, Exploration Geophysics, 19, 401–416, 1988.

    Article  Google Scholar 

  • Chen, P., A detailed geomagnetic survey of Pehpei District, Szechuan, China, Chinese, J. Geophys. (Acta Geophysica Sinica), 1, 177–186, 1948.

    Google Scholar 

  • Chen, Z., Review of geomagnetic surveys in China, Science Bulletin, 1, 99–120, 1944.

    Google Scholar 

  • Chen, Z. and C. Liu, Preliminary report on the results of geomagnetic survey in China, 1946–1947, Chinese J. Geophys. (Acta Geophysica sinica), 1, 78–87, 1948.

    Google Scholar 

  • Gao, J., Z. An, Z. Gu, W. Han, Z. Zhan, and T. Yao, Selection of geomagnetic normal field and calculation of geomagnetic anomalous field, Chinese J. Geophys., 48(1), 66–73, 2005.

    Article  Google Scholar 

  • Gu, Z., Z. An, J. Gao, W. Han, and Z. Zhan, Spherical cap harmonic analysis on the geomagnetic field in Beijing-Tianjin-Hebei region, Chinese J. Geophys., 47(6), 1128–1134, 2004.

    Article  Google Scholar 

  • Gu, Z., Z. Zhan, J. Gao, T. Yao, and W. Han, Application of GPS in geomagnetic survey, Earth Planets Space, 58, this issue, 721–727, 2006.

    Google Scholar 

  • Haines, G., Regional magnetic field modeling: a review, J. Geomag. Geo-electr., 42, 1001–1018, 1990.

    Article  Google Scholar 

  • Haines, G. and L. Newitt, Canadian geomagnetic reference field 1985, J. Geomag. Geoelectr., 38(3), 895–921, 1986.

    Article  Google Scholar 

  • IAGA Division V, Working group 8, International Geomagnetic Reference Field 1995 revision, J. Geomag. Geoeletr., 47, 1257–1261, 1996.

    Google Scholar 

  • IAGA Division V, Working Group 8, International Geomagnetic Reference Field 2000, Phys. Earth Planet. Inter., 120, 39–42, 2000.

    Article  Google Scholar 

  • IAGA Division V, Working Group 8, The 9th Generation International Geomagnetic Reference Field, Geophys. J. Int., 155, 1051–1056, 2003.

    Article  Google Scholar 

  • Kote, M, and V. Haok, Modeling European magnetic repeat station and survey data by SCHA in search of time-variation anomalies, Phys. Earth Planet. Inter., 122(3–4), 205–220, 2000.

    Google Scholar 

  • Langel, L., Main field, in Geomagnetism, edited by J. A. Jacobs, Vol. 1, pp. 249–512, Academic Press, London, 1987.

    Google Scholar 

  • Miura, S., S. Ueki, T. Sato, K. Tachibana, and H. Hamaguchi, Crustal deformation associated with the 1998 seismo-volcanic crisis of Iwate Volcano, Northeastern Japan, as observed by a dense GPS network, Earth Planets Space, 52, 1003–1008, 2000.

    Article  Google Scholar 

  • Haines, G., Regional magnetic field modeling: a review, J. Geomag. Geo-electr., 42, 1001–1018, 1990.

    Article  Google Scholar 

  • Newitt, L. B., C. E. Barton, and J. Bitterly, in Guide for Magnetic Repeat Station Surveys, 112 pp., International Association of Geomagnetism and Aeronomy, 1996.

    Google Scholar 

  • Tschu, K., On some advancement of Chinese geomagnetism and aeronomy during 1949–1979, Chinese J. Geophys. (Acta Gephysica sinica), 22, 326–335, 1979 (in Chinese).

    Google Scholar 

  • Xia, G., S. Zheng, L. Wu, F. Zhang, and H. Wei, The geomagnetic field chart of China in 1980.0 and the mathematical model, Chinese J. Geo-phys. (Acta Geophysica Sinica), 31, 82–89, 1988 (in Chinese).

    Google Scholar 

  • Xu, W., G. Xia, Z. An, G. Chen, F. Zhang, Y. Wang, Y. Tian, Z. Wei, S. Ma, and H. Chen, Magnetic survey and China GRF2000, Earth Planets Space, 55, 215–217, 2003.

    Article  Google Scholar 

Download references

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Authors and Affiliations

  1. Institute of Geophysics, China Earthquake Administration, Beijing, 100081, China

    Zuowen Gu, Zhijia Zhan, Jintian Gao, Wei Han, Zhenchang An, Tongqi Yao & Bin Chen

  2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China

    Zhenchang An

Authors
  1. Zuowen Gu
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  2. Zhijia Zhan
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  3. Jintian Gao
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  4. Wei Han
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  5. Zhenchang An
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  6. Tongqi Yao
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  7. Bin Chen
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Correspondence to Zuowen Gu.

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Gu, Z., Zhan, Z., Gao, J. et al. Geomagnetic survey and geomagnetic model research in China. Earth Planet Sp 58, 741–750 (2006). https://doi.org/10.1186/BF03351977

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  • DOI: https://doi.org/10.1186/BF03351977

Key words

  • Geomagnetic survey
  • geomagnetic model
  • Taylor polynomial model
  • spherical cap harmonic model
  • China