Sprites and lightning in Venus: constraints for observations by the Planet-C mission

Details Sprites and lightning in Venus: constraints for observations by the Planet-C mission Sprites and lightning in Venus: constraints for observations by the Planet-C mission

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmae31a0042t&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #AE31A-0042

Statistics

Methodology

0343 Planetary Atmospheres (5210, 5405, 5704), 3324 Lightning, 6295 Venus

Scientific paper

Lightning activity in Venus has been mystery for long period, although many studies based on observations both by spacecrafts and by ground-based telescope have been carried out. This situation may be attributed to the ambiguity of these evidential measurements. In order to conclude this controversial subject, we are developing a new type of lightning detector, LAC (Lightning and Airglow Camera), which will be onboard Planet-C (Venus Climate Orbiter: VCO). PLanet-C will be launched in 2010 by JAXA. To distinguish optical lightning flash from other pulsing noises, high-speed sampling at 50kHz for each pixel, that enables us to investigate the time variation of each lightning flash phenomenon, is adopted. On the other hand, spatial resolution is not first priority. For this purpose we developed new type of APD (avalanche photo diode) array with a format of 8 x 8. Narrow band interference filter at wavelength of 777.4 nm (OI), which is expected lightning color based on laboratory discharge experiment, is chosen for lightning measurement. LAC detects lightning flash with an optical intensity of average of Earth's lightning or less at a distance of 3 Rv. We also present results of theoretical calculations of the expected occurrance heights and emissions of sprites above thunderstorms in the CO2 atmosphere of Venus and the Hydrogen-Helium atmospheres of Jupiter and Saturn. General detection methodology of sprites/lightning in planetary atmospheres by orbiting spacecraft will be discussed.

Affiliated with

Also associated with

No associations

Rating

Sprites and lightning in Venus: constraints for observations by the Planet-C mission 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 Sprites and lightning in Venus: constraints for observations by the Planet-C mission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sprites and lightning in Venus: constraints for observations by the Planet-C mission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1409068