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Bulletin of Chinese Academy of Sciences (Chinese Version)

Keywords

earth's interior, geospace environment, Tanlu-Dabie tectonic belt, middle and upper atmosphere, ionosphere

Document Type

CAS Field Station

Abstract

The main objectives of the Mengcheng National Geophysical Observatory are to conduct various geophysical observations and researches, including seismic, gravity, strain, electromagnetic and other means, and also perform geospace environment observations and researches, mainly focusing on the middle and upper atmosphere and ionosphere regions. The integrated geophysical observations from the Earth's interior to the space is essential for understanding the structure, formation, and evolution of the Earth itself and the geospace environment, and also the generation mechanisms, early warning, and forecasting of various natural disasters. By using observation data from geophysical arrays of different scales, we have obtained the multi-scale structures, deformation, and characteristics of seismogenic structures of the Tanlu-Dabie tectonic belt. From the observation data of the geospace environment, we have revealed the high temporal and spatial resolution phenomena and the related mechanisms within the middle and upper atmosphere and ionosphere. These researches provide important bases for regional earthquake monitoring, earthquake hazard investigation, geospace environment monitoring, and space weather study.

First page

846

Last Page

855

Language

Chinese

Publisher

Bulletin of Chinese Academy of Sciences

References

1 孟亚锋, 姚华建, 王行舟, 等. 基于背景噪声成像方法研究郯庐断裂带中南段及邻区地壳速度结构与变形特征. 地球物理学报, 2019, 62(7):2490-2509.

Meng Y F, Yao H J, Wang X Z, et al. Crustal velocity structure and deformation features in the central-southern segment of Tanlu fault zone and its adjacent area from ambient noise tomography. Chinese Journal of Geophysics, 2019, 62(7):2490-2509. (in Chinese)

2 Luo S, Yao H J, Li Q S. et al. High-resolution 3D crustal S-wave velocity structure of the Middle-Lower Yangtze River Metallogenic Belt and implications for its deep geodynamic setting. Science China Earth Sciences, 2019, 62(9):1361- 1378.

3 Bem T S, Yao H J, Luo S, et al. High-resolution 3-D crustal shear-wave velocity model reveals structural and seismicity segmentation of the central-southern Tanlu fault zone, Eastern China. Tectonophysics, 2020, 778:228372.

4 Bem T S, Liu C M, Yao H J, et al. Azimuthally anisotropic structure in the crust and uppermost mantle in central East China and its significance to regional deformation around the Tan-Lu Fault zone. Journal of Geophysical Research:Solid Earth, 2022, 127(3):e2021JB023532.

5 Li L L, Shen W S, Sui S Y, et al. Crustal thickness beneath the Tanlu fault zone and its tectonic significance based on twolayer H-κ stacking. Earthquake Science, 2021, 34(1):47-63.

6 Gu N, Wang K D, Gao J, et al. Shallow crustal structure of the Tanlu fault zone near Chao Lake in Eastern China by direct surface wave tomography from local dense array ambient noise analysis. Pure and Applied Geophysics, 2019, 176(3):1193- 1206.

7 Li C, Yao H J, Yang, Y, et al. 3-D shear wave velocity structure in the shallow crust of the Tanlu fault zone in Lujiang, Anhui, and adjacent areas and its tectonic implications. Earth and Planetary Physics, 2020, 4(2):1-12.

8 Luo S, Yao H J. Multistage tectonic evolution of the Tanlu fault:Insights from upper crustal azimuthal anisotropy of the Chao Lake segment. Tectonophysics, 2021, 806:228795.

9 Li L L, Yao H J, Luo S, et al. A multi-scale 3-D crust velocity model in the Hefei-Chao Lake area around the southern segment of Tanlu fault zone. Earthquake Science, 2021, 34(4):274-287.

10 Yi W, Reid I M, Xue X, et al. High- and middle-latitude neutral mesospheric density response to geomagnetic storms. Geophysical Research Letters, 2018, 45(1):436-444.

11 Yi W, Xue X H, Reid I M, et al. Climatology of the mesopause relative density using a global distribution of meteor radars. Atmospheric Chemistry and Physics, 2019, 19(11):7567- 7581.

12 Yu B K, Xue X H, Yue X A, et al. The global climatology of the intensity of the ionospheric sporadic E layer. Atmospheric Chemistry and Physics, 2019, 19(6):4139-4151.

13 Yu B K, Xue X H, Scott C J, et al. Interhemispheric transport of metallic ions within ionospheric sporadic E layers by the lower thermospheric meridional circulation. Atmospheric Chemistry and Physics, 2021, 21(5):4219-4230.

14 Huang F Q, Lei J H, Dou X K. Daytime ionospheric longitudinal gradients seen in the observations from a regional BeiDou GEO receiver network. Journal of Geophysical Research:Space Physics, 2017, 122(6):6552-6561.

15 Lei J H, Huang F Q, Chen X T, et al. Was magnetic storm the only driver of the long-duration enhancements of daytime total electron content in the Asian-Australian sector between

7 and 12 September 2017?. Journal of Geophysical Research:Space Physics, 2018, 123(4):3217-3232.

16 Huang F Q, Lei J Q, Dou X K, et al. Nighttime medium-scale traveling ionospheric disturbances from airglow imager and global navigation satellite systems observations. Geophysical Research Letters, 2018, 45(1):31-38.

17 Huang F Q, Lei J H, Zhang R L, et al. Prominent daytime TEC enhancements under the quiescent condition of January 2017.

Geophysical Research Letters, 2020, 47(14):e2020GL088398.

18 王宝善, 曾祥方, 宋政宏, 等. 利用城市通信光缆进行地震观测和地下结构探测. 科学通报, 2021, 66(20):2590-2595.

Wang B S, Zeng X F, Song Z H, et al. Seismic observation and subsurface imaging using an urban telecommunication opticfiber cable. Chinese Science Bulletin, 2021, 66(20):2590- 2595. (in Chinese)

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