Results 21 to 30 of about 56,308 (175)

Data quality control and tools in passive seismic experiments exemplified on the Czech broadband seismic pool MOBNET in the AlpArray collaborative project [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2017
This paper focuses on major issues related to the data reliability and network performance of 20 broadband (BB) stations of the Czech (CZ) MOBNET (MOBile NETwork) seismic pool within the AlpArray seismic experiments.
L. Vecsey, J. Plomerová, P. Jedlička, H. Munzarová, V. Babuška, the AlpArray working group   +5 more
doaj   +1 more source

Modelling solar cycle length based on Poincaré maps for Lorenz-type equations [PDF]

Annales Geophysicae, 2010
Two systems of Lorenz-type equations modelling solar magnetic activity are studied: Firstly a low order dynamic system in which the toroidal and poloidal fields are represented by x- and y-coordinates respectively, and the hydrodynamical information ...
H. Lundstedt, T. Persson
doaj   +1 more source

Complexity Phenomena and ROMA of the Magnetospheric Cusp, Hydrodynamic Turbulence, and the Cosmic Web [PDF]

, 2014
Dynamic Complexity is a phenomenon exhibited by a nonlinearly interacting system within which multitudes of different sizes of large scale coherent structures emerge, resulting in a globally nonlinear stochastic behavior vastly different from that could ...
Chang, Tom, Echim, Marius, Hernquist, Lars, Lamy, Herve, Sijacki, Debora, Vogelsberger, Mark, Wu, Cheng-chin   +6 more
core   +2 more sources

Analysis and reduction of the geomagnetic gradient influence on aeromagnetic compensation in a towed bird [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2021
Aeromagnetic exploration is an important method of geophysical exploration. We study the compensation method of the towed bird system and establish the towed bird interference model.
Z. Zhou, Z. Zhou, Z. Liu, Z. Liu, W. Li, W. Li, Y. Wang, Y. Wang, C. Wang, C. Wang   +9 more
doaj   +1 more source

In situ evidence for the structure of the magnetic null in a 3D reconnection event in the Earth's magnetotail [PDF]

, 2006
Magnetic reconnection is one of the most important processes in astrophysical, space and laboratory plasmas. Identifying the structure around the point at which the magnetic field lines break and subsequently reform, known as the magnetic null point, is ...
A Balogh, A. Balogh, A. Korth, ATY Lui, B Filippov, BUO Sonnerup, C Garth, C. J. Xiao, C. P. Escoubet, CE Parnell, CJ Xiao, CP Escoubet, DI Pontin, DS Cai, EN Parker, ER Priest, ER Priest, FS Mozer, G Aulanier, G Chanteur, H Reme, H Zhao, H. Reme, H. Zhao, HE Petschek, HU Frey, J Birn, J Buchner, J Wang, J. X. Wang, JM Greene, JM Greene, JM Greene, JW Dungey, JW Dungey, JW Dungey, K Galsgaard, K Schindler, K. H. Glassmeier, KK Khurana, L Fletcher, M Øieroset, M. G. Kivelson, Q. G. Zong, RG Giovanelli, S Hu, S. Y. Fu, SWH Cowley, TD Phan, VI Arnold, WX Ding, X. G. Wang, XG Wang, XG Wang, XG Wang, XH Deng, Y-T Lau, Y-T Lau, Z. W. Ma, Z. X. Liu, Z. Y. Pu   +60 more
core   +2 more sources

Auroral ASCAPLOT at Syowa Station in 1959 and 1960

Antarctic Record, 1962
Auroral ASCAPLOTs at Syowa Station in 1959 (from Feb. 11 to Oct. 26) and in 1960 (from Feb. 12 to Oct. 6) were presented.
Junji NAKAMURA, Taiichi KITAMURA, Shin FUKUSHIMA   +2 more
doaj   +1 more source

Localized fast flow disturbance observed in the plasma sheet and in the ionosphere [PDF]

Annales Geophysicae, 2005
An isolated plasma sheet flow burst took place at 22:02 UT, 1 September 2002, when the Cluster footpoint was located within the area covered by the Magnetometers-Ionospheric Radars-All-sky Cameras Large Experiment (MIRACLE).
R. Nakamura, O. Amm, H. Laakso, N. C. Draper, M. Lester, A. Grocott, B. Klecker, I. W. McCrea, A. Balogh, H. Rème, M. André   +10 more
doaj   +1 more source

Longitudinal, seasonal and solar cycle variation in lunar tide influence on the equatorial electrojet [PDF]

Annales Geophysicae, 2017
It has been well documented that the lunar tidal waves can modulate the ionospheric electrodynamics and create a visible influence on the equatorial electrojet (EEJ). The lunar tide influence gets intensified around noon, primarily during new and full
E. Yizengaw, B. A. Carter
doaj   +1 more source

Detection of 6 November 1997 ground level event by Milagrito [PDF]

, 2000
Solar Energetic Particles (SEPs) with energies exceeding 10 GeV associated with the 6 November 1997 solar flare/CME (coronal mass ejection) have been detected with Milagrito, a prototype of the Milagro Gamma Ray Observatory. While SEP acceleration beyond
Atkins, R, Benbow, W, Berley, D, Chen, M L, Coyne, D G, Dingus, B L, Dorfan, D E, Ellsworth, R W, Evans, D, Falcone, A, Fleysher, L, Fleysher, R, Gisler, G, Goodman, J A, Haines, T J, Hoffman, C M, Hugenberger, S, Kelley, L A, Leonor, I, Macri, John R, McConnell, Mark L, McCullough, J F, McEnery, J E, Miller, R S, Mincer, A I, Morales, M F, Nemethy, P, Ryan, James M., Shen, B, Shoup, A, Sinnis, G, Smith, A J, Sullivan, G W, Tumer, O T, Wang, K, Wascko, M O, Westerhoff, S, Williams, D A, Yang, T, Yodh, G B   +39 more
core   +2 more sources

Model results for the ionospheric lower transition height over mid-latitude [PDF]

Annales Geophysicae, 2004
Theoretical calculations of the ionospheric lower transition height (LTH), a level of equal O+ and molecular ion densities, were performed and compared with empirical models by Zhang et al. (1996). This paper represents a substantial extension of
J. Lei, J. Lei, L. Liu, W. Wan, S.-R. Zhang   +4 more
doaj   +1 more source