Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll

Details Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsa23b..02r&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SA23B-02

Other

2415 Equatorial Ionosphere, 2439 Ionospheric Irregularities, 2467 Plasma Temperature And Density, 2471 Plasma Waves And Instabilities, 2494 Instruments And Techniques

Scientific paper

The EQUIS II nighttime E-region rocket and radar measurements were made in order to improve our understanding of the electrodynamics associated with density gradients, neutral wind shear, and enhanced electric fields that develop post-sunset in the near-equatorial region. Four rocket experiments were launched on two separate nights in September, 2004 from Kwajalein Atoll (9.4° N, 167.5° E), while simultaneous E-region radar observations were made with the ALTAIR radar. The focus of this presentation are the electron density profiles measured by two instrumented rockets as they passed through the unstable region on the upleg and downleg. Each rocket used two Langmuir probes and an impedance probe of a new design to measure both the absolute electron density and small-scale density fluctuations with spatial scales on the order of one meter. The impedance probe returned measurements from 7 kHz to 4 MHz, using a new design that excited the plasma using a pseudo-white-noise generator, allowing for an altitude resolution of approximately 40 meters. These impedance curves allow determination of the electron density from the identification of the upper hybrid frequency. In addition, evidence is presented that the impedance probe observed the lower-frequency "series" resonance which is dependent on the electron temperature. Data from the Langmuir probes, a beacon experiment, and the impedance probe are compared and the resulting density profiles are examined to estimate their contribution to the observed electric field irregularities via the gradient-drift and other instabilities.

Affiliated with

Also associated with

No associations

Rating

Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nighttime E-region Electron Density Profiles Measured During the EQUIS II Campaign at Kwajalein Atoll will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1691229