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 | Time-height plot of horizontal wind data in the mesosphere and lower thermosphere estimated from the meteor wind observation of the MU radar at Shigaraki (gif format)
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| Description: |
| The time-height plot of horizontal wind data in the mesosphere and lower thermosphere (70-110 km) estimated from the meteor wind observation of the MU radar at Shigaraki MU Observatory in Shiga Prefecture, Japan (34.86N, 136.11E, 385m MSL). File name of each plot is composed of date and variable abbreviation: W(year)(month)(day).(resolution).gif (daily plot), W(year)(month).(resolution).gif (monthly plot) and W(year).(resolution).gif (yearly plot). The resolution abbreviations are h1t60min00, h1t60min30, h2t60min00 and h2t60min30 (please refer to the readme file of text or netCDF data for details of the resolution abbreviations). These plots are made using the netCDF data of each resolution in time and height. For yearly plot, only the h2t60min00 and h4t60min00 data are used and averaged for each day. The daily average is done if there are more than one valid data in all of the four time zones (0-5, 6-11, 12-17 and 18-24 h). The sensitivity of the MU radar was significantly enhanced because of the change of the meteor observation mode from 4 to 25 channels after April 2006, and the number of observed meteor trails increased. For this reason, the color range of gif (display) data was also changed after April 2006. (for example, from 5-55 to 50-550 for the meteor trail number). |
| Acknowledgement: If you acquire MU radar data, we ask that you acknowledge us in your use of the data. This may be done by including text such as MU radar data provided by Research Institute for Sustainable Humanosphere of Kyoto University. We would also appreciate receiving a copy of the relevant publications. |
| ReleaseDate: 2022-04-02T00:00:00 |
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Contact
(PrincipalInvestigator):
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| Takuji Nakamura, National Institute of Polar Research, Japan, nakamura.takuji [at] nipr.ac.jp |
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Contact
(TechnicalContact):
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| Noriko Hashiguchi, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, nhashi(at)rish.kyoto-u.ac.jp |
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Contact
(GeneralContact):
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| MU Radar Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, mu(at)rish.kyoto-u.ac.jp |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
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| AccessInformation: |
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URL: http://www.rish.kyoto-u.ac.jp/radar-group/mu/meteor/ |
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Availability: Online |
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Access
Rights: Open |
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Format: GIF |
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| Measurement
Type: Profile |
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| Time
Span: |
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StartDate: 1990-05-18T08:00:00 |
| StopDate: -P1Y |
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| Observed
Region: Earth.NearSurface.Mesosphere |
| Observed
Region: Earth.NearSurface.Thermosphere |
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| Keywords: EARTH SCIENCE Atmosphere Atmospheric Winds Wind Profiles |
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| Instrument: |
| Name: Middle and Upper Atmosphere (MU) Radar |
| Description: The Middle and Upper atmosphere (MU) radar is a large Doppler radar built for atmospheric observation at Shigaraki MU Observatory located at Shigaraki in the Shiga prefecture, Japan (34.86N, 136.11E, 385m MSL) in the middle latitude. The construction was completed in November 1984. The MU radar has a circular antenna array of 103 m in diameter, which consists of 475 three-element Yagis. It is an active phased array system with each Yagi driven by a solid-state transceiver module. This system configuration makes it possible to direct the antenna beam by electronic control up to 2500 times per second. The MU radar transmits an intense radio wave of 46.5 MHz to the sky and receives extremely weak echoes scattered back by atmospheric and ionospheric turbulences. It can observe winds and turbulence in the altitude range from 2 km to 500 km including the troposphere, stratosphere, mesosphere, thermosphere and ionosphere. |
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Contact
(GeneralContact):
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| MU Radar Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, mu(at)rish.kyoto-u.ac.jp |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
| InstrumentType: Radar |
| InvestigationName: RISH Middle and Upper atmosphere (MU) radar at Shigaraki (regular operation) |
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| Observatory: |
| Name: Shigaraki Middle and Upper atmosphere (MU) Observatory |
| Description: The Shigaraki Middle and Upper atmosphere (MU) Observatory is located at Shigaraki in the Shiga prefecture, Japan (34.86N, 136.11E, 385m MSL) in the middle latitude. In this site, various kinds of instruments (for example, middle and upper (MU) atmosphere radar, boundary layer radar (BLR), meteor wind (MW) radar and ionosonde) have been installed, which measure the middle-latitude atmosphere including the troposphere, stratosphere, mesosphere, thermosphere and ionosphere. |
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Contact
(MetadataContact):
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| RISH Metadata Management Group, Research Institute for Sustainable Humanosphere (RISH), Kyoto University, iugonet(at)rish.kyoto-u.ac.jp |
| Location: |
| ObservatoryRegion: Earth.Surface |
| CoordinateSystemName: WGS84 |
| Latitude: 34.856 |
| Longitude: 136.106 |
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Observed
Data:
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Original
Metadata Files:
mur_sgk_mwspc_gif.xml:
Time-height plot of horizontal wind data in the mesosphere and lower thermosphere estimated from the meteor wind observation of the MU radar at Shigaraki (gif format)
(Observatory)
SGK.xml:
Shigaraki Middle and Upper atmosphere (MU) Observatory
(Instrument)
MUradar.xml:
Middle and Upper Atmosphere (MU) Radar
(Person)
Takuji.Nakamura.xml:
Takuji Nakamura
(Person)
Noriko.Hashiguchi.xml:
Noriko Hashiguchi
(Person)
MU.Radar.Management.Group.xml:
MU Radar Management Group
(Person)
RISH.Metadata.Management.Group.xml:
RISH Metadata Management Group
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