Global thermosphere‐ionosphere response to onset of 20 November 2003 magnetic storm

Crowley, G.; Hackert, Chris L.; Meier, R. R.; Strickland, D. J.; Paxton, L. J.; Pi, Xiaoqing; Mannucci, A. J.; Christensen, A. B.; Morrison, D.; Bust, G. S.; Roble, R. G.; Curtis, N.; Wene, G. P.

doi:10.1029/2005ja011518

Cited by 116 publications

(147 citation statements)

References 23 publications

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“…ASTRA runs the Assimilative Mapping of Ionospheric Electrodynamics (AMIE) to drive the Thermosphere Ionosphere Mesosphere Electrodynamic General Circulation Model (TIMEGCM) to develop an estimate of the disturbance dynamo contribution, and an assimilative model called Ionospheric Data Assimilation Algorithm 4-Dimensional (IDA4D) that ingests many different kinds of electron density-related data (Bust et al 2004) to produce the 3-D electron density distributions. The model output provides a framework for the interpretation of the DICE data (Crowley et al 2003). AMIE and IDA4D run both with and without the DICE data, for comparison.…”

Section: Mission Operations and Data Managementmentioning

confidence: 99%

Design, Development, Implementation, and On-orbit Performance of the Dynamic Ionosphere CubeSat Experiment Mission

et al. 2014

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Funded by the NSF CubeSat and NASA ELaNa programs, the Dynamic Ionosphere CubeSat Experiment (DICE) mission consists of two 1.5U CubeSats which were launched into an eccentric low Earth orbit on October 28, 2011. Each identical spacecraft carries two Langmuir probes to measure ionospheric in-situ plasma densities, electric field probes to measure in-situ DC and AC electric fields, and a science grade magnetometer to measure in-situ DC and AC magnetic fields. Given the tight integration of these multiple sensors with the CubeSat platforms, each of the DICE spacecraft is effectively a "sensorsat" capable of comprehensive ionospheric diagnostics. The use of two identical sensor-sats at slightly different orbiting velocities in nearly identical orbits permits the de-convolution of spatial and temporal ambiguities in the observations of the ionosphere from a moving platform. In addition to demonstrating nanosat-based constellation science, the DICE mission is advancing a number of groundbreaking CubeSat technologies including miniaturized mechanisms and high-speed downlink communications.

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Section: Mission Operations and Data Managementmentioning

confidence: 99%

Design, Development, Implementation, and On-orbit Performance of the Dynamic Ionosphere CubeSat Experiment Mission

et al. 2014

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“…It should be mentioned that several other workers (e.g. Meier et al, 2005;Bruinsma et al, 2006;Crowley et al, 2006) have also investigated the response of thermosphere and/or ionosphere to this superstorm.…”

Section: Introductionmentioning

confidence: 99%

The ionospheric response in the Brazilian sector during the super geomagnetic storm on 20 November 2003

et al. 2007

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Abstract.A very intense geomagnetic storm (superstorm) began with storm sudden commencement (SSC) at 08:03 UT on 20 November 2003, as a result of the coronal mass ejection (CME) by sunspot 484 hurled into space on 18 November 2003. The geomagnetic storm attained |D st | max =472 nT at 20:00 UT (20 November). In this paper we present the simultaneous ionospheric sounding observations, using the Canadian Advanced Digital Ionosondes (CADIs), carried out from Palmas (PAL; 10.2 • S, 48.2 • W; dip latitude 5.5 • S; a near equatorial station) and São José dos Campos (SJC; 23.2 • S, 45.9 • W; dip latitude 17.6 • S; station located under the crest of equatorial ionospheric anomaly), Brazil. In addition, total electron content (TEC) measurements from several GPS receiving stations in the Brazilian sector during this storm are presented. The simultaneous ionospheric sounding observations carried out at SJC and PAL, and TEC observations on 3 consecutive days viz., 19 November (quiet), 20 November (disturbed) and 21 November (recovery phase) are presented. Salient features from the ionospheric observations in the Brazilian sector during the superstorm are discussed. The difference in the observed ionospheric response at the two stations (PAL and SJC) is considerable. This is not surprising given that PAL is close to the magnetic equator and SJC is near the crest of the equatorial ionospheric anomaly (EIA). It should be pointed out that soon after the SSC (about 4 h later), the F-region critical frequency (foF2), the F-region peak height (hpF2), and variations of virtual heights at different frequencies (iso-frequency plots) all show Correspondence to: F. Becker-Guedes (fabio@univap.br) wavelike oscillations of the F-region during daytime at both the ionospheric sounding stations. Unusual rapid uplifting of F-region at PAL was observed during both the main and recovery phases of the storm.

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“…The deep low-density region (trough) existing poleward of the Florida enhancement is prominent compared to the November 2003 superstorm [Crowley et al, 2006]. This trough region of the plasma has lower TEC than the typical nighttime TEC.…”

Section: Ionospheric Behaviormentioning

confidence: 94%

Space Weather Quarterly Volume 11, Issue 1, 2014

2014

Space Weather Quarterly

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In memoriam of Robert D. Hunsucker, an authority on radio propagation, radio sensing of the ionosphere, and the effects of AGWs on the ionosphere. Effects of solar cycle 24 activity on WAAS navigationBy Seebany Datta-Barua, Todd Walter, Gary S. Bust, and William WannerThe effects of geomagnetic activity of solar cycle 24 on WAAS navigation service. Meeting ReportA spacecraft immersed in an energetic plasma environment can experience significant charging. Typically driven by electrons with energies between a few tens of eV to ~100 keV, the charge can build up externally and, depending on surface properties, produce potential differences of near the ambient electron temperature (~100 V to 10 kV). At higher energies, electrons between 100 keV and ~10 MeV can penetrate a typical spacecraft surface and deposit charge internally on isolated conductors or in dielectrics. Again, the buildup of this charge can lead to large potential differences. Ultimately potential differences on or internal to the spacecraft can lead to arc discharges and other deleterious effects. Spacecraft charging/arcing is recognized as one of the main concerns for designing survivable spacecraft.Since about 1974 engineers and scientist who study charging have met to review the latest technologies, flight results, and modeling efforts. These meetings have evolved into a biennial international conference that provides the opportunity for the world's spacecraft charging experts and persons new to the discipline to meet and to discuss the latest issues in the field. The thirteenth Spacecraft Charging Technology Conference (SCTC) will be hosted by the California Institute of Technology's Jet Propulsion Laboratory with the support of NASA and the domestic and international spacecraft charging community.Topics of interest to the conference include the following: (1) Charging and arcing testing, (2) Charging and arcing mitigation, (3) Material aging effects, (4) Space Weather: Cause and effect, (5) Charging simulation, (6) Internal charging, (7) On-orbit investigations, (8) Plasma propulsion and tethers, (9) Materials characterization, (10) Electrostatic discharge test standardization, (11) Radiation effects, and (12) Other relevant charging topics.Papers and posters addressing all aspects of charging in the space environment are solicited for the conference. Abstracts for the conference are due by 22 February 2014. The website for registering for the meeting and submitting abstracts is http:// sctc.jpl.nasa.gov. Points News NOAA will host a workshop in Boulder, Colorado, on the comparison and intercalibration of solar energetic particle measurements. It will take place on the afternoon of Friday, 11 April 2014, at the Millennium Harvest House, following the annual Space Weather Workshop. Solar energetic particles (SEPs) consist of ions (protons, helium nuclei, and heavier ions), electrons, and even energetic neutral atoms emitted by the Sun in association with solar flares and coronal mass ejections. Of long-standing scientific interest since the...

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Global thermosphere‐ionosphere response to onset of 20 November 2003 magnetic storm

Cited by 116 publications

References 23 publications

Design, Development, Implementation, and On-orbit Performance of the Dynamic Ionosphere CubeSat Experiment Mission

Design, Development, Implementation, and On-orbit Performance of the Dynamic Ionosphere CubeSat Experiment Mission

The ionospheric response in the Brazilian sector during the super geomagnetic storm on 20 November 2003

Space Weather Quarterly Volume 11, Issue 1, 2014

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