[PDF] Top 20 Calibration of a numerical ionospheric model with EISCAT observations
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Calibration of a numerical ionospheric model with EISCAT observations
... HWM model, ...the observations. No simultaneous FPI observations were available for the considered period, but such an amplitude for the meridional wind is a very reasonable value when compared to ... See full document
16
Relationships between GPS-signal propagation errors and EISCAT observations
... The ionospheric contribution is pro- portional to the total electron content (TEC) along the ray path between satellite and ...ionosphere, EISCAT observations may help to study the influence of ... See full document
8
An extended TRANSCAR model including ionospheric convection: simulation of EISCAT observations using inputs from AMIE
... Galand (2001) and associated special issue). However, ion precipitation will not be considered in the present study. In the terrestrial ionosphere, precipitating electrons or pri- mary photoelectrons move along the ... See full document
13
ANGEO - Effect of the IMF By component on the ionospheric flow overhead at EISCAT: observations and theory
... These results can be compared quantitatively with the observed IMF B y -related gradients for v E shown in Fig. 4a. It can be seen that a reasonable measure of agreement has been achieved, concerning the sense of the ... See full document
20
EISCAT verification in the development of ionospheric tomography
... IRI-90 model gave a reconstruction which correctly re- produced a trough above 65°N; however, it overestimated the densities at the layer peak and on the ...the EISCAT observations ...the ... See full document
9
Range imaging observations of PMSE using the EISCAT VHF radar: Phase calibration and first results
... International EISCAT Workshop” Abstract. A novel phase calibration technique for use with the multiple-frequency Range IMaging (RIM) technique is introduced based on genetic ...The EISCAT receiver ... See full document
14
A numerical model of the ionospheric signatures of time-varying magnetic reconnection: I. ionospheric convection
... the ionospheric field is approximately con- stant at B i = 5×10 −5 T, this means that the area poleward of the two boundaries must always be the ...the EISCAT-AMPTE data discussed in ... See full document
19
Numerical simulation of mid-latitude ionospheric -region based on SEEK and SEEK-2 observations
... Fig. 2. Same as top and middle panels of Fig. 1 but for the upleg of the SEEK-2. background E s -layer during the SEEK-2 rocket experiment. The E s -layer is then located at 103 km and the plasma den- sity is set to ... See full document
8
Low-frequency electrostatic waves in the ionospheric E-region: a comparison of rocket observations and numerical simulations
... the observations and the simulations, it can be argued that the most important nonlinear dynamics can be accounted for in a 2-D numerical model, referring to a plane perpendic- ular to a locally ... See full document
21
ANGEO - A comparison of EISCAT and HF Doppler observations of a ULF wave
... the EISCAT UHF radar, the IMAGE network of ground magnetometers and the Tromsù dynasonde, it has been possible fully to characterise the signature of a magnetospheric ULF wave both in the ionosphere and at the ... See full document
10
Calibration of numerical model output using nonparametric spatial density functions
... 1 Introduction Environmental research increasingly uses deterministic model outputs to understand and predict the behavior of complex physical processes, particularly in the area of air quality. As opposed to ... See full document
29
Calibration of Numerical Model Output using Nonparametric Spatial Density Functions.
... statistical calibration approach that models the distributional discrepancy between model outputs and historical ...climate model outputs are assumed to be ... See full document
86
Numerical simulation of mid-latitude ionospheric <i>E</i>-region based on SEEK and SEEK-2 observations
... The E s -layer is then located at 103 km and the plasma den- sity is set to satisfy the critical frequency f o E s = 7.2 MHz and the blanketing frequency f b E s = 2.2 MHz, which were de- rived from the simultaneous ... See full document
9
ANGEO - Electric field effects on ionospheric and thermospheric parameters above the EISCAT station for summer conditions
... aged EISCAT observations for this period under study except for the evening to night-time ...above EISCAT have shown a qualitative agreement already for the ®rst model ... See full document
12
EISCAT CRRES observations: nightside ionospheric ion outflow and oxygen-rich substorm injections
... combined observations made near midnight by the EISCAT radar, all-sky cameras and the combined released and radiation efects satellite (CRRES) shortly before and during a ...the EISCAT radar and is ... See full document
12
EISCAT Svalbard radar observations of ionospheric signatures of magnetopause reconnection during a changing IMF polarity
... Conclusions Observations by the ESR radar have been presented with ionospheric signatures of magnetospheric processes active during a period of about 1 hour when the clock angle of the IMF rotated through a ... See full document
10
ANGEO - Combined CUTLASS, EISCAT and ESR observations of ionospheric plasma flows at the onset of an isolated substorm
... scatter ionospheric radars, ground magnetometers and the Polar UVI imager has allowed the electrodynamics of the impulsive substorm electrojet region during its ®rst few minutes of evolution at the expansion phase ... See full document
15
Types of pulsating aurora: Comparison of model and EISCAT electron density observations
... Figure 6 shows the keogram, ewogram, and electron densities on January 13, 2016 between 5 and 6 UT. From the ASC, a very slowly drifting and persistently stable structure of pulsating aurora is seen over the whole ASC ... See full document
14
Ionospheric composition measurement by EISCAT using a global fit procedure
... B. Cabrit, W. Kofman CEPHAG ENSIEG, URA 346 CNRS, Grenoble, France Received: 4 March 1996/Revised: 17 June 1996/Accepted: 3 July 1996 Abstract. The aim of this paper is to show the gain of the global fit procedure ... See full document
10
Statistical characteristics of PMWE observations by the EISCAT VHF radar
... of EISCAT VHF PMWE observations were analyzed with focus on spec- tral properties like spectral width, doppler shift and spectral ...of observations with weak and strong polar mesosphere winter echo ... See full document
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