Studying diurnal and secular variations of the Earth's magnetic field using data from Yangibazar magnetic observatory (Uzbekistan)
Abstract and keywords
Abstract (English):
The article provides information about the Yangibazar geomagnetic observatory, managed by the Institute of Seismology of the Academy of Sciences of the Republic of Uzbekistan. The results of the study of magnetic field variations at the Yangibazar magnetic-ionospheric observatory and comparison of the average annual values of the magnetic field absolute magnitude with the main magnetic field of the Earth are demonstrated. A comparison is made between the diurnal variation of the geomagnetic field for four days on June 21–24, 2021 at the Yangibazar observatory and the diurnal variation for the same period at the nearby stations and observatories Alma-Ata (Kazakhstan) and Gyulagarak (Armenia), the absolute values of the magnetic field elements recorded at the observatory in the period 2010–2021 were also studied. The conclusion is made about the expediency of deploying high-precision geomagnetic measurements that meet the international standard on the basis of the Yangibazar observatory.

Keywords:
geomagnetic field, observatory, variations, secular variation
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References

1. Abdullabekov K. N., Maksudov S. K. Variations in the geomagnetic field of seismically active regions. - Tashkent: Fan : UzSSR Academy of Sciences, Institute of Seismology, 1975. - P. 128. - (in Russian).

2. Alken P., Thébault E., Beggan C. D., et al. International Geomagnetic Reference Field: the thirteenth generation // Earth, Planets and Space. - 2021. - Feb. - Vol. 73, no. 1. - P. 49. - DOI:https://doi.org/10.1186/s40623-020-01288-x.

3. Gvishiani A. D., Soloviev A. A., Sidorov R. V., et al. Successes in the organization of geomagnetic monitoring in Russia and neighboring countries // Vestnik ONZ RAS. - 2018. - Vol. 10. - NZ4001. - DOI:https://doi.org/10.2205/2018NZ000357. - (in Russian).

4. Karinen A., Mursula K. Correcting the Dst index: Consequences for absolute level and correlations // Journal of Geophysical Research. - 2006. - Vol. 111, A8. - A08207. - DOI:https://doi.org/10.1029/2005ja011299.

5. Nechaev C. A. Guide to Stationary Geomagnetic Observations / ed. by J. L. Rasson. - Irkutsk : Publishing House of the V. B. Sochava Institute of Geography SB RAS, 2006. - P. 139. - (in Russian).

6. Oganyan M. V., Simonyan A. O., Karapetyan D. K., et al. Peculiarities of the manifestation of seasonal variations of the geomagnetic field in the northern part of the territory of Armenia // Geophysical research. - 2019. - Vol. 20, no. 4. - P. 40-51. - DOI:https://doi.org/10.21455/gr2019.4-3. - (in Russian).

7. Pavón-Carrasco F. J., Marsal S., Campuzano S. A., et al. Signs of a new geomagnetic jerk between 2019 and 2020 from Swarm and observatory data // Earth, Planets and Space. - 2021. - Vol. 73, no. 1. - P. 175. - DOI: 01504-2.

8. Sergeyeva N., Gvishiani A., Soloviev A., et al. Historical 𝐾 index data collection of Soviet magnetic observatories, 1957-1992 // Earth System Science Data. - 2021a. - Vol. 13, no. 5. - P. 1987- 1999. - DOI:https://doi.org/10.5194/essd-13-1987-2021.

9. Sergeyeva N., Gvishiani A., Soloviev A., et al. Historical K index values from observatory TKT (Tashkent (Yangibazar)), 1957-1991 // PANGAEA. - 2021b. - DOI:https://doi.org/10.1594/PANGAEA. 929056.

10. Sokolova O. I. Research and development of Earth’s magnetic field monitoring at the geomagnetic observatory «Alma-Ata» // Bulletin of NNC RK. - 2014. - P. 149-152. - (in Russian).

11. Soloviev A., Smirnov A., Gvishiani A., et al. Quantification of Sq parameters in 2008 based on geomagnetic observatory data // Advances in Space Research. - 2019. - Vol. 64, no. 11. - P. 2305- 2320. - DOI:https://doi.org/10.1016/j.asr.2019.08.038.

12. Soloviev A. A., Smirnov A. G. Accuracy Estimation of the Modern Core Magnetic Field Models Using DMA-Methods for Recognition of the Decreased Geomagnetic Activity in Magnetic Observatory Data // Izvestiya Physics of the Solid Earth. - 2018. - Nov. - Vol. 54, no. 6. - P. 872-885. - DOI:https://doi.org/10.1134/S1069351318060101.

13. Soloviev A., Bogoutdinov S., Nisilevich M. On the Frequency Distribution of Geomagnetic K Indices in the Northwestern Pacific Region Over the 19-24 Solar Cycles // Pure and Applied Geophysics. - 2022. - Vol. 179, no. 11. - P. 4179-4196. - DOI:https://doi.org/10.1007/s00024-021-02862-4.

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