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Meteor wind radar at Shigaraki MU Observatory

ResourceID
spase://IUGONET/Instrument/RISH/misc/SGK/MWradar

Description

The meteor wind radar at Shigaraki MU Observatory in Shiga Prefecture, Japan (34.86N, 136.11E, 385m MSL) was operated during 1977-1986, and measures the reflected VHF radio wave from an ionized meteor trail at 70-110 km altitude produced by interaction between a meteorite and the neutral atmosphere. Since the meteor trail drifts following the motion of the ambient neutral atmosphere, radial wind velocity can be determined by using a Doppler signal. Basic parameters of this meteor radar system consist of operating frequency (31.57 MHz), beam directions (45 degrees off the zenith), transmitter of peak power (~10 kW), and pulse width (280 micro sec). One and three five-element Yagi antennas were employed for transmitting and receiving antennas, respectively, where the latter compose an interferometer for accurate determination of echo arrival angle. Details of the meteor wind radar at Shigaraki MU Observatory have been found in the paper [Aso et al., JATP, 41, 517-525, 1979].

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Details

Version:2.5.0

Instrument

ResourceID
spase://IUGONET/Instrument/RISH/misc/SGK/MWradar
ResourceHeader
ResourceName
Meteor wind radar at Shigaraki MU Observatory
ReleaseDate
2016-07-21 16:31:00
Description

The meteor wind radar at Shigaraki MU Observatory in Shiga Prefecture, Japan (34.86N, 136.11E, 385m MSL) was operated during 1977-1986, and measures the reflected VHF radio wave from an ionized meteor trail at 70-110 km altitude produced by interaction between a meteorite and the neutral atmosphere. Since the meteor trail drifts following the motion of the ambient neutral atmosphere, radial wind velocity can be determined by using a Doppler signal. Basic parameters of this meteor radar system consist of operating frequency (31.57 MHz), beam directions (45 degrees off the zenith), transmitter of peak power (~10 kW), and pulse width (280 micro sec). One and three five-element Yagi antennas were employed for transmitting and receiving antennas, respectively, where the latter compose an interferometer for accurate determination of echo arrival angle. Details of the meteor wind radar at Shigaraki MU Observatory have been found in the paper [Aso et al., JATP, 41, 517-525, 1979].

Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://IUGONET/Person/Toshitaka.Tsuda
2.MetadataContactspase://IUGONET/Person/RISH.Metadata.Management.Group
InformationURL
InstrumentType
Radar
InvestigationName
RISH MWR at Shigaraki (regular operation)
ObservatoryID