[PDF] Top 20 First assimilations of COSMIC radio occultation data into the Electron Density Assimilative Model (EDAM)
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First assimilations of COSMIC radio occultation data into the Electron Density Assimilative Model (EDAM)
... of COSMIC RO data into EDAM 359 5 Conclusions EDAM assimilations have been run for three time periods representing quiet, moderate and disturbed geomagnetic con- ...three data sets have been ... See full document
7
Electron density profiles probed by radio occultation of FORMOSAT-7/COSMIC-2 at 520 and 800 km altitude
... FORMOSAT-7/COSMIC-2 electron density profiles that the electron density profiles retrieved by the satellite at 500 km tend to be smaller than those at 800 km altitude in the EIA region ... See full document
6
Electron density in the F region derived from GPS/MET radio occultation data and comparison with IRI
... GPS/MET radio occultation data of 2–3 weeks in June/July 1995 and sort the occultation profiles (occurring between 10–14 LT and 22–2 LT) as function of geomagnetic ...of electron ... See full document
8
A new empirical model of NmF2 based on CHAMP, 3 GRACE and COSMIC radio occultation
... Remote Sens. 2019, 11, 1386 5 of 21 electron density are annual and semiannual components [40,46]. Thus, a two-order trigonometric function of DOY was used in F 4 . To improve the computational efficiency ... See full document
21
Comparison of high latitude electron density profiles obtained with the GPS radio occultation technique and EISCAT measurements
... powerful radio occul- tation technique for sounding the ionosphere on a routine ...for radio occultation studies so far, CHAMP has a very low or- bit height that is even slowly decreasing during the ... See full document
8
Plasmaspheric Electron Content contribution inferred from ground and radio occultation derived Total Electron Content
... sensing data globally distributed for the sounding of the atmosphere of the Earth and, in particular, the ...study, electron density profiles derived using the Improved Abel transform inversion in ... See full document
6
Evaluation of E Layer Dominated Ionosphere Events Using COSMIC/FORMOSAT-3 and CHAMP Ionospheric Radio Occultation Data
... the first step, we divided the original profile into two parts, namely an E layer part ranging from 80 to 150 km and an F2 layer part starting from 150 ...maximum electron density “NmE” and its ... See full document
15
A perspective on the fundamental quality of GPS radio occultation data
... path-related first-order correc- tion error is ...local electron density around the tangent ...the data processing carried out in this study, measured phases are kept intact ex- cept for the ... See full document
14
Comparison of ionospheric radio occultation CHAMP data with IRI 2001
... empirical model of the most important parameters of the ionospheric plasma such as the electron density, electron and ion temperature, and ion ...IRI model is de- veloped as a joint ... See full document
5
Ionospheric electron density observed by FORMOSAT-3/COSMIC over the European region and validated by ionosonde data
... of COSMIC and ground-based data for the European region shows that COSMIC RO profiles are in generally good agreement with ionosonde profiles both in the F2 layer peak electron density ... See full document
16
Ionospheric assimilation of radio occultation and ground-based GPS data using non-stationary background model error covariance
... Ionospheric data assimilation is a powerful ap- proach to reconstruct the 3-D distribution of the iono- spheric electron density from various types of ...a data assimilation model for ... See full document
12
A three-dimensional regional assimilative model of the ionospheric electron density
... of electron density NmF2 (Spalla and Ciraolo 1994; Krankowski et ...the electron density and the domain goes from the base of the ionosphere to the GPS satellite height) and the absolute ... See full document
215
Assessment of COSMIC radio occultation retrieval product using global radiosonde data
... wetPrf, radio occultation observation, and background, ...different data filtration used in this ...humidity data of radiosonde or wet- Prf, or to the differences in the rate of decrease in ... See full document
11
Error analysis of Abel retrieved electron density profiles from radio occultation measurements
... Horizontal electron density gradients in the zonal direction also can result in errors in the Abel retrieval ...the occultation events with zonal LEO-GPS rays are used in the retrieval, but the ... See full document
6
On the possible use of radio occultation middle latitude electron density profiles to retrieve thermospheric parameters
... CHAMP satellite was launched into a near polar orbit (I = 87, h = 450 km) by a Russian COSMOS rocket on 15 July 2000 (Reigber et al. 2000). Due to the high inclination, the radio occultation measurements ... See full document
16
High-order ionospheric effects on electron density estimation from Fengyun-3C GPS radio occultation
... ionospheric electron density ...The occultation tangent point height of the peak value in the high-order ionospheric effect agrees with the height of the peak value of the electron den- sity ... See full document
9
Modelling the main ionospheric trough using the Electron Density Assimilative Model (EDAM) with assimilated GPS TEC
... to model the trough and other features with steep gradients covered in this paper, and the vast database of GPS observations, opens up the possibility of broader statis- tical studies of ionospheric large-scale ... See full document
14
Analysis of GPS radio occultation data from the FORMOSAT-3/COSMIC and Metop/GRAS missions at CDAAC
... Correspondence to: W. Schreiner ([email protected]) heights that is marginally significant. The observed mean difference between the F3C and Metop/GRAS bending an- gles of ∼0.02–0.03 µrad is quite small and illustrates ... See full document
18
Estimation and evaluation of COSMIC radio occultation excess phase using undifferenced measurements
... the COSMIC POD processing is used to accurately determine the position and velocity of the satellite mass centre and the receiver off- set based on the PANDA ...setting occultation events indicate that the ... See full document
9
Assimilation of GPS radio occultation data at DWD
... where radio occultations were blacklisted south of 65 ◦ S, these biases clearly decreased to the level of the op- erational ...covariance model which had been taken over from the previ- ous forecast ... See full document
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