English
norskArtikler, rapporter og annet (fysikk og teknologi): Nye registreringer
Viser treff 981-1000 av 1057
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First estimates of volume distribution of HF-pump enhanced emissions at 6300 and 5577 Å : a comparison between observations and theory
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008)We present bi-static observations of radio-wave induced optical emissions at 6300 and 5577 Å from a night-time radio-induced optical emission ionospheric pumping experiment at the HIPAS (Fairbanks) facility in Alaska. The optical observations were made at HIPAS and from HAARP located 285 km south-east. From these observations the altitude distribution of the emissions is estimated with tomography-like ... -
A study of fine structure of diffuse aurora with ALIS-FAST measurements
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008)We present results of an investigation of the fine structure of the night sector diffuse auroral zone, observed simultaneously with optical instruments (ALIS) from the ground and the FAST electron spectrometer from space 16 February 1997. Both the optical and particle data show that the diffuse auroral zone consisted of two regions. The equatorward part of the diffuse aurora was occupied by a pattern ... -
F-region electron heating by X-mode radiowaves in underdense conditions
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009) -
A stochastic theory for temporal fluctuations in self-organized critical systems
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Spatial scaling of optical fluctuations during substorm-time aurora
(Journal article; Tidsskriftartikkel; Peer reviewed, 2007) -
Frequencies of wave packets of whistler-mode chorus inside its source region : a case study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
A novel code for numerical 3-D MHD studies of CME expansion
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009) -
Sorting of polystyrene microspheres using a Y-branched optical waveguide
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005) -
Mesospheric dust and its secondary effects as observed by the ESPRIT payload
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009) -
Multi-instrument observations of a large scale Pc4 pulsation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Longitudinal development of a substorm brightening arc
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009) -
Dielectric microsphere manipulation and chain assembly by counter-propagating waves in a channel waveguide
(Journal article; Tidsskriftartikkel; Peer reviewed, 2007) -
Velocity distribution of Gold nanoparticles trapped on an optical waveguide
(Journal article; Tidsskriftartikkel; Peer reviewed, 2005) -
Crash and recovery of the potential in a toroidal plasma column, as observed by generalized conditional sampling
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Nordområdeprosjektet EISCAT
(Chronicle; Kronikk, 2011) -
First simultaneous measurements of waves generated at the bow shock in the solar wind, the magnetosphere and on the ground
(Journal article; Tidsskriftartikkel; Peer reviewed, 2009) -
Particle precipitations during NEIAL events : simultaneous ground based observations at Svalbard
(Journal article; Tidsskriftartikkel; Peer reviewed, 2007)In this paper we present Naturally Enhanced Ion Acoustic Lines (NEIALs) observed with the EISCAT Svalbard Radar (ESR). For the first time, long sequences of NEIALs are recorded, with more than 50 events within an hour, ranging from 6.4 to 140 s in duration. The events took place from ~08:45 to 10:00 UT, 22 January 2004. We combine ESR data with observations of optical aurora by a meridian scanning ... -
Ion-dispersion and rapid electron fluctuations in the cusp : a case study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2008) -
Non-Gaussian Clustering of SAR images for Glacier Change Detection
(Conference object; Konferansebidrag, 2010) -
Time Series Investigation of Land Subsidence Using a Weighted Least Squares Adjustment Based on Image Mode Interferometric Data
(Conference object; Konferansebidrag, 2010)This study presents the weighted least squares method based on Interferometric Synthetic Aperture Radar (InSAR) images to retrieve spatial-temporal evolution of land subsidence in Mashhad Valley, northeast Iran. Using the analysis of a few interferograms covering the 2003-2005 period, Motagh et al (GJI 2006) presented a preliminary analysis of the subsidence in this area. Here we extend this study ...
