Data Access
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).
Version:2.5.0
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).
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://IUGONET/Person/Takuji.Nakamura | |||
| 2. | TechnicalContact | spase://IUGONET/Person/Noriko.Hashiguchi | |||
| 3. | GeneralContact | spase://IUGONET/Person/MU.Radar.Management.Group | |||
| 4. | MetadataContact | spase://IUGONET/Person/RISH.Metadata.Management.Group |
Date in the form YYYY-MM-DD where YYYY= Gregorian Year AD, MM = month of year (01-12), and DD = day of month (01-31).
Time in the form hh where hh = hour of day (0-23). Local time (UT+09:00:00) is used for time data.
Height (above the mean sea level)
Zonal wind (eastward wind is positive.)
Meridional wind (northward wind is positive.)
Standard deviation of the zonal wind
Standard deviation of the meridional wind
Number of meteors used for the weighted average of the horizontal wind