Blar i forfatter "Di Mare, Francesca"

Viser treff 1-4 av 4

    • Electron-neutral collisions effects on Langmuir probe in the lower E-region ionosphere 

      Brask, Steffen Mattias; Marholm, Sigvald; Di Mare, Francesca; Adhikari, Sayan; Spicher, Andres; Takahashi, T.; Miloch, Wojciech Jacek (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-21)
      We present the first set of particle-in-cell simulations including Monte Carlo collisions between charged and neutral particles used to simulate a cylindrical Langmuir probe in the electron saturation regime with a collisional electron sheath. We use a setup focused on the E-region ionosphere; however, the results of these simulations are analyzed in a general sense using dimensionless values. We ...

    • Interferometric Study of Ionospheric Plasma Irregularities in Regions of Phase Scintillations and HF Backscatter 

      Spicher, Andres; LaBelle, James; Bonnell, John W.; Roglans, Roger; Moser, Chrystal; Fuselier, Stephen A.; Bounds, Scott; Clausen, Lasse; Di Mare, Francesca; Feltman, Connor A.; Jin, Yaqi; Kletzing, Craig; Miloch, Wojciech Jacek; Moen, Jøran Idar; Oksavik, Kjellmar; Sawyer, Rhyan; Takahashi, Toru; Yeoman, Tim K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-08)
      We investigate the nature of small-scale irregularities observed in the cusp by the Twin Rockets to Investigate Cusp Electrodynamics-2 (TRICE-2) in regions of enhanced phase scintillations and high-frequency coherent radar backscatter. We take advantage of the fact that the irregularities were detected by spatially separated probes, and present an interferometric analysis of both the observed electron ...

    • Suppression of ionospheric irregularity due to auroral particle impact 

      Takahashi, Toru; Spicher, Andres; Di Mare, Francesca; Rowland, Douglas E.; Pfaff, Robert F.; Collier, Michael R.; Clausen, Lasse; Moen, Jøran Idar (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-12-16)
      The VISIONS-2 35.039 sounding rocket was launched from Ny-Ålesund, Svalbard, on 7 December 2018 at 11:06 UT, and traveled overhead of the cusp aurora. The payload reached an apogee of 806.6 km and provided measurements of the electric field (E) and electron density (N<sub>e</sub> ) with a high sampling rate of 6,250 Hz. The high-sampling-data make it possible to estimate the horizontal structure ...

    • Turbulence and Intermittency in the Winter Cusp Ionosphere Studied With the ICI Sounding Rockets 

      Di Mare, Francesca; Spicher, Andres; Clausen, Lasse; Miloch, Wojciech Jacek; Moen, Jøran Idar (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-15)
      The characteristics of turbulent plasma in the winter cusp ionosphere is studied based on in-situ data from the Investigation of Cusp Irregularities (ICI) sounding rockets. The electron density fluctuations from ICI-2 and ICI-3 missions have been analyzed for the whole flight, using advanced timeseries analysis techniques. The analysis of the autocorrelation scale is indicative of the turbulence ...