Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Hua-Ran Chen"'
Publikováno v:
Data Science Journal, Vol 10 (2011)
Based on the analysis of the Vr index from data from geomagnetic observatories in China and four geomagnetic observatories abroad, temporal-spatial distribution characteristics of Vr index were analyzed. The Vr index showed 27-day solar-cycle recurre
Externí odkaz:
https://doaj.org/article/f882677d3fbb4428b324f6972d18b7d2
Publikováno v:
Chinese Journal of Geophysics. 55:448-455
Based on the SFFT-transform of one second data about H and D components from the Longyao geomagnetic observatory in 2008–2010, the amplitudes of frequency spectrum were obtained. We divided them into 5 parts according to the frequency bands of geom
Publikováno v:
Chinese Journal of Geophysics. 55:184-193
Based on the analysis of the Vr index of H and D (VrH and VrD) from data of 41 geomagnetic observatories in China and 4 geomagnetic observatories abroad in 2008–2010, both temporal and spatial variation characteristics of VrH and VrD were observed.
Publikováno v:
Chinese Journal of Geophysics. 54:273-285
Using the electric field High Frequency (HF) waves recorded by the Instrument Champ Electrique (ICE) onboard the DEMETER spacecraft in a solar low year, the spatial features of the waves from 10 kHz to 3.33 MHz are studied. During the quiet time of t
Autor:
Lian-wang Chen, Hong-sheng Ma, Jie-qing Zhang, Jian-guo Wang, Qiao-yun He, Hua-ran Chen, Yi-qun Li
Publikováno v:
Acta Seismologica Sinica. 17:625-634
Based on the latest achievement about activities of geological structure, a 3-D finite-element model containing four layers of upper crust, lower crust (two layers) and upper mantle is established in the paper. By repeated tests and revisions, the bo
Autor:
Shao-jing Gong, Hua-ran Chen
Publikováno v:
Acta Seismologica Sinica. 14:676-684
Applying 3-dimension finite difference method, the distribution characteristics of horizontal field transfer functions for rectangular conductor have been computed, and the law of distribution for Re-part and Im-part has been given. The influences of
Autor:
Hua-ran Chen, Lian-di Li, Shao-jing Gong, Cheng-zhu Qi, Shu-min He, Zhen-li Tian, Xiao-mei Yan
Publikováno v:
Acta Seismologica Sinica. 14:293-302
In this paper, using the variometer data of Changli station and Baijiatuan station from 1972 to 1997, the inter-station transfer functions of horizontal field and the single-station transfer functions of vertical field have been calculated. With anal
Publikováno v:
Acta Seismologica Sinica. 13:448-453
Extenics was a branch of mathematics for studying the incompatible problems. In this paper, basing on calculating the associative functions of all various indexes, we have obtained the quantitative assessment results of prediction indexes by introduc
Publikováno v:
Acta Seismologica Sinica. 10:61-70
We have collected the data of variometers in period from 1972 through 1984 at Changli and Baijiatuan stations. The results calculated from 19 groups of data show: 1) There are no significant anomalies of A, B at Baijiatuan and that of B at Changli, b
Publikováno v:
Data Science Journal; Vol 10 (2011); IAGA34-IAGA40
Data Science Journal, Vol 10 (2011)
Data Science Journal, Vol 10 (2011)
Based on the analysis of the Vr index from data from geomagnetic observatories in China and four geomagnetic observatories abroad, temporal-spatial distribution characteristics of Vr index were analyzed. The Vr index showed 27-day solar-cycle recurre