Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science最新文献_第9页

Electrical and electromagnetic investigation for landslide characterisation 滑坡特征的电气和电磁调查

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00070-8

A. Godio, G. Bottino

引用次数: 58

TEC monitoring by GPS - a possible contribution to space weather monitoring 全球定位系统对TEC的监测——对空间天气监测的可能贡献

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00056-3

N. Jakowski, S. Heise, A. Wehrenpfennig, S. Schlüter

{"title":"TEC monitoring by GPS - a possible contribution to space weather monitoring","authors":"N. Jakowski, S. Heise, A. Wehrenpfennig, S. Schlüter","doi":"10.1016/S1464-1917(01)00056-3","DOIUrl":"https://doi.org/10.1016/S1464-1917(01)00056-3","url":null,"abstract":"<div><p>The world-wide use of GPS satellites for navigation and positioning offers a unique chance for permanent monitoring the total electron content (TEC) of the ionosphere on regional/global scale. Using permanent operating GPS ground station networks (e.g. that from IGS) the derived TEC maps may contribute to monitor the actual development of large scale structures in electron content and their dynamics during ionospheric perturbations (e.g.www.kn.nz.dlr.de/ → Ionosphere Impact → Storm). Based on GPS measurements at European IGS ground stations and subsequent TEC estimations and mapping, both individual as well as common features of ionospheric storms shall be discussed for the European ionosphere. The paper demonstrates the power of this new GPS tool to detect and to study the dynamics of large-scale spatial structures (e.g. ionospheric response of solar eclipse on 11 August 1999). Detected TEC-perturbations are closely related to space weather characterizing quantities such as solar radio emission, solar wind and geomagnetic activity indices. Due to close relationships between TEC and space weather parameters a permanent space weather monitoring can help to control the ionospheric impact on operational navigation satellite systems.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 8","pages":"Pages 609-613"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(01)00056-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72217831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 22

Numerical simulation of secondary planetary waves arising from the nonlinear interaction of the normal atmospheric modes 正常大气模式非线性相互作用产生的次级行星波的数值模拟

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00020-4

A.I. Pogoreltsev

引用次数: 23

Wave energy and momentum fluxes coming to the middle and upper atmosphere from tropospheric mesoscale turbulence 对流层中尺度湍流对中高层大气的波能和动量通量

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00029-0

I.N. Drobyazko, N.M. Gavrilov

引用次数: 2

Design of a new prototype of remote station to detect electrical and seismometric parameters in a seismic area of Southern Italy 意大利南部震区电学和地震学参数遥感测控站的新原型设计

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)95026-3

M. Balasco , D. Chianese , V. Cuomo , G. Di Bello , M.R. Gallipoli , V. Lapenna , M. Mucciarelli

{"title":"Design of a new prototype of remote station to detect electrical and seismometric parameters in a seismic area of Southern Italy","authors":"M. Balasco , D. Chianese , V. Cuomo , G. Di Bello , M.R. Gallipoli , V. Lapenna , M. Mucciarelli","doi":"10.1016/S1464-1917(01)95026-3","DOIUrl":"10.1016/S1464-1917(01)95026-3","url":null,"abstract":"<div><p>In this work we describe the main features of a new prototype of remote station able to jointly detect electrical and seismometric parameters. The measuring station has been installed at Tito site on the Southern Apennine chain, one of the most seismic active areas of the Mediterranean region; it combines new technologies for the data acquisition with a robust statistical technique to discriminate anomalous fluctuations from background noise in the recorded signals. The completely automatic station is equipped with sensors able to detect self-potential signals (16 channels, A/D 24 bit, sampling rate of 0.25Hz) and a 1Hz three directional seismometer connected to an acquisition unit having a dynamics of 133 dB. After a preliminary filtering procedure, mainly devoted to remove all the influences due to meteo-climatic parameters and/or cultural electrical noise, a software developed ad hoc to study the possible correlation between anomalous patterns in electrical signals and local microseismic activity was employed. In particular, the instrumental features of the new station allow us to compare the fluctuations of electrical signal, detected at short temporal scales, with seismic events with low magnitude (M<3), that are not revealed by the national seismometric network (National Institute of Geophysics). The analysis of the first results obtained during the 1999 confirms us that the station could be largely used in a geophysical monitoring network operating in seismic active areas.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 10","pages":"Pages 787-791"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(01)95026-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77052390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

The impact of aviation upon the atmosphere 航空对大气的影响

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00046-0

Robert Sausen (Guest Editor)

引用次数: 10

IAGA workshop “lower atmosphere effects on the ionosphere and upper atmosphere” IAGA讲习班“低层大气对电离层和高层大气的影响”

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00017-4

Jan Lastovicka (guest editor)

引用次数: 0

Modeling debris flow propagation and deposition 模拟泥石流的传播和沉积

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00063-0

P. Ghilardi , L. Natale , F. Savi

引用次数: 43

On the mass dependence of transverse ion acceleration by broad-band extremely low frequency waves 宽带极低频波对横向离子加速的质量依赖性

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(00)00102-1

E.J. Lund , E. Möbius , K.A. Lynch , D.M. Klumpar , W.K. Peterson , R.E. Ergun , C.W. Carlson

引用次数: 11

Stability of fast solitary structures on auroral field lines 极光磁场线上快速孤立结构的稳定性

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(00)00103-3

I. Roth, L. Muschietti

{"title":"Stability of fast solitary structures on auroral field lines","authors":"I. Roth, L. Muschietti","doi":"10.1016/S1464-1917(00)00103-3","DOIUrl":"10.1016/S1464-1917(00)00103-3","url":null,"abstract":"<div><p>The stability of the fast solitary structures which were observed onboard several auroral crossing satellites is analyzed as a dynamical system and investigated numerically. These large-amplitude potential spikes are supported by trapped electron populations. For parameters of low and mid-altitude auroral passes with gyro-to-bounce frequency ratios significantly larger than unity, the potential spikes are very resilient, while for lower magnetic fields, at ratios below unity, they develop unstable undulations in the transverse direction. The evolution of the solitary structures is related to changes in the trajectories of the trapped electrons. It is shown here that the coupling of the parallel and perpendicular dynamics is stronger when the above ratio decreases, resulting in a bifurcation of trajectories. The addition of a small perturbation to the large amplitude structure leads to a very different response of the trapped electrons in the two configurations. The electron behavior reflects the lack of spike stability at small gyro-to-bounce frequency ratios.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 1","pages":"Pages 165-168"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(00)00103-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81306729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1