Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Erling, Nielsen"'
Publikováno v:
Earth and Planetary Physics, Vol 4, Iss 4, Pp 408-419 (2020)
Profiles of the Martian dayside ionosphere can be used to derive the neutral atmospheric densities at 130 km, which can also be obtained from the Mars Climate Database (MCD) and spacecraft aerobraking observations. In this research, we explain the me
Externí odkaz:
https://doaj.org/article/70fb0bbda47b4f87a719bb414351bf34
Publikováno v:
Earth and Planetary Physics. 4:1-12
Profiles of the Martian dayside ionosphere can be used to derive the neutral atmospheric densities at 130 km, which can also be obtained from the Mars Climate Database (MCD) and spacecraft aerobraking observations. In this research, we explain the me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0eb0f5cfb3dafeb72a1e0c8d905f459
https://doi.org/10.26464/epp2020038
https://doi.org/10.26464/epp2020038
Publikováno v:
Journal of Geophysical Research: Planets. 124:602-616
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb48be4021b57b13bb1b48c245224f69
https://doi.org/10.1029/2018je005864
https://doi.org/10.1029/2018je005864
Autor:
YuGuang Ye, JinSong Wang, Yoshifumi Futaana, Hong Zou, Erling Nielsen, Yongqiang Hao, JunFeng Qin
Publikováno v:
Geophysical Research Letters. 48
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a7d3b93a24f1432415509ba3280c713
https://doi.org/10.1029/2021gl092662
https://doi.org/10.1029/2021gl092662
It has been clear that the main cause of Martian deep-nightside ionosphere is electron precipitation, which is dominated by Martian crustal magnetic field. In this research, the dependence of deep-nightside Martian ionosphere TEC (Total Electron Cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14fd677a88719e49a8826c236b9c5102
https://doi.org/10.5194/egusphere-egu2020-13746
https://doi.org/10.5194/egusphere-egu2020-13746
Denne oppgaven tar for seg Powels nye program kalt «Ledningsfornyelse» som de ønsker å teste opp mot dagens metode kalt DiVA til ledningsnettet i Ålesund kommune. Dette programmet har blitt implementert mot datasettet til Ålesund kommune, for s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______537::fef8e59afa660193e69e522ae6e8b5d6
https://hdl.handle.net/11250/2613435
https://hdl.handle.net/11250/2613435
Publikováno v:
Journal of Geophysical Research: Space Physics. 121:3464-3475
A method to estimate the neutral atmospheric density near the ionospheric main peak of Mars is introduced in this study. The neutral densities at 130 km can be derived from the ionospheric and atmospheric measurements of the Radio Science experiment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e460b4da46421f66681814573ee99866
https://doi.org/10.1002/2015ja022304
https://doi.org/10.1002/2015ja022304
Autor:
Erling Nielsen
Publikováno v:
Annales Geophysicae, Vol 22, Iss 10, Pp 3531-3536 (2004)
Annales Geophysicae, Vol 22, Pp 3531-3536 (2004)
Annales Geophysicae, Vol 22, Pp 3531-3536 (2004)
It was recently observed that double-pulse measurements of the mean velocities of a wide asymmetric spectrum are a function of the time lag between the pulses (Uspensky et al., 2004). Here we demonstrate that the observed relationship probably is inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c1df9017711c5ee293d27a5eb5cb353
https://www.ann-geophys.net/22/3531/2004/
https://www.ann-geophys.net/22/3531/2004/
Publikováno v:
Radio Science. 48:197-207
[1] We here present a manual for the reduction of data from ionograms obtained from the Mars Express MARSIS Active Ionospheric Sounding topside radar sounder. Sample data are presented with the procedure for processing them explained as simply as pos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f36c40a13fb25b76a6c923bb66c5d24c
https://doi.org/10.1002/rds.20023
https://doi.org/10.1002/rds.20023
Publikováno v:
Planetary and Space Science. 58:1391-1399
One of the problems in reconstructing the real ionosphere from an ionogram is the occurrence of a ‘valley,’ where electron density decreases with altitude and make a non-monotonic profile. For the case of the Earth ionosphere, the ordinary and ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c87f476f39ae326c3e7b48fe1221d780
https://doi.org/10.1016/j.pss.2010.06.011
https://doi.org/10.1016/j.pss.2010.06.011