Version:2.5.0
NumericalData
ResourceID
spase://IUGONET/NumericalData/RISH/misc/SGK/MUradar/mur_sgk_mesostd_netcdf
ResourceHeader
ResourceName
Mesospheric observation data taken by the MU radar at Shigaraki (netCDF format)
ReleaseDate
2013-07-22 00:00:00
Description
The observation data in the mesosphere (60-100 km) taken by the MU radar at Shigaraki in Shiga Prefecture, Japan (34.86N, 136.11E, 385m MSL), which has been operated in the standard observation mode of the mesosphere. The data are stored in the netCDF (network Common Data Form) file named (year)(month)(day).wnd.nc (wind data) and (year)(month)(day).nc (other data). The azimuth and zenith angles of beam 1, 2, 3, 4 and 5 are (0, 0), (0, 10), (90, 10), (180, 10) and (270, 10), respectively, in unit of degree. The time interval of data is the same as that of the original data, but the wind data are 1 hour average. The value of 999 contained in the wind data means missing value. The information of condition code and flag can be found in the README (http://www.rish.kyoto-u.ac.jp/mu/mesosphere/note/README_mur_mesosphere_data.html and http://www.rish.kyoto-u.ac.jp/mu/mesosphere/note/README_mur_mesosphere_wind_data.html).
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.
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
MU Mesosphere Observation
URL
Language
English
Format
NetCDF
InstrumentIDs
MeasurementType
Profile
TemporalDescription
TimeSpan
StartDate
1986-03-16 23:08:29
RelativeStopDate
-P7D
Cadence
PT3M
SpectralRange
RadioFrequency
ObservedRegion
Earth.NearSurface.Mesosphere
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
WGS84
NorthernmostLatitude
34.856
SouthernmostLatitude
34.856
EasternmostLongitude
136.106
WesternmostLongitude
136.106
MinimumElevation
58.61
MaximumElevation
97.61
Keywords
EARTH SCIENCE Atmosphere Atmospheric Winds Wind Profiles
Parameter #1
Name
lat
Description
Latitude of radar location
Units
degree_north
Support
SupportQuantity
Positional
Parameter #2
Name
lon
Description
Longitude of radar location
Units
degree_east
Support
SupportQuantity
Positional
Parameter #3
Name
sealvl
Description
Mean sea level of radar location
Units
m
Support
SupportQuantity
Positional
Parameter #4
Name
bmwdh
Description
Radar beam width in one-way half-power full width
Units
degree
Support
Parameter #5
Name
az
Description
Azimuth angle of each radar beam
Units
degree
Support
Parameter #6
Name
ze
Description
Zenith angle of each radar beam
Units
degree
Support
Parameter #7
Name
date
Description
Observation date
Units
year, month, day
Support
Parameter #8
Name
time
Description
Seconds since midnight of every day. Local time (UT + 09:00:00) is used for time data.
Units
second
Support
Parameter #9
Name
height_v
Description
Height in vertical beam
Units
km
Support
SupportQuantity
Positional
Parameter #10
Name
height_mz
Description
Height in oblique beams
Units
km
Support
SupportQuantity
Positional
Parameter #11
Name
range
Description
Range of radar beam
Units
km
Support
SupportQuantity
Positional
Parameter #12
Name
uwnd
Description
Zonal wind (eastward is positive).
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #13
Name
vwnd
Description
Meridional wind (northward is positive).
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #14
Name
wind
Description
Vertical wind (Upflow is positive).
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #15
Name
flg_uwnd
Description
Flag of zonal wind. It represents the quality of wind data calculated from 1-hour average of radial Doppler velocity for radar beam 1-5, and this value is the integer of 0 and 1. For 1-hour average, only the data satisfied with the above screening condition are used. If the wind data are missing value (999.0), the flag value is also 999. The flag 1 of zonal and meridional wind means that magnitude of the sum of 1-hour average of radial Doppler velocity of beam 2 and 4 or 3 and 5 used for caluculation of wind data is more than 5.0 at each altitude. The flag 1 of vertical wind means that magnitude of 1-hour average of radial Doppler velocity of vertical beam is more than 5.0. These wind data strongly effect on the contamination of radio interference or are not satisfied with the assumption that horizontal wind is uniform in the observation region of the MU radar. If you want to analyze the wind data with high quality in the mesosphere, you should select the data with flag 0.
Units
1
Support
Parameter #16
Name
flg_vwnd
Description
Flag of meridional wind. It represents the quality of wind data calculated from 1-hour average of radial Doppler velocity for radar beam 1-5, and this value is the integer of 0 and 1. For 1-hour average, only the data satisfied with the above screening condition are used. If the wind data are missing value (999.0), the flag value is also 999. The flag 1 of zonal and meridional wind means that magnitude of the sum of 1-hour average of radial Doppler velocity of beam 2 and 4 or 3 and 5 used for caluculation of wind data is more than 5.0 at each altitude. The flag 1 of vertical wind means that magnitude of 1-hour average of radial Doppler velocity of vertical beam is more than 5.0. These wind data strongly effect on the contamination of radio interference or are not satisfied with the assumption that horizontal wind is uniform in the observation region of the MU radar. If you want to analyze the wind data with high quality in the mesosphere, you should select the data with flag 0.
Units
1
Support
Parameter #17
Name
flg_wwnd
Description
Flag of vertical wind. It represents the quality of wind data calculated from 1-hour average of radial Doppler velocity for radar beam 1-5, and this value is the integer of 0 and 1. For 1-hour average, only the data satisfied with the above screening condition are used. If the wind data are missing value (999.0), the flag value is also 999. The flag 1 of zonal and meridional wind means that magnitude of the sum of 1-hour average of radial Doppler velocity of beam 2 and 4 or 3 and 5 used for caluculation of wind data is more than 5.0 at each altitude. The flag 1 of vertical wind means that magnitude of 1-hour average of radial Doppler velocity of vertical beam is more than 5.0. These wind data strongly effect on the contamination of radio interference or are not satisfied with the assumption that horizontal wind is uniform in the observation region of the MU radar. If you want to analyze the wind data with high quality in the mesosphere, you should select the data with flag 0.
Units
1
Support
Parameter #18
Name
pwr
Description
Echo power for beam 1-5.
Units
dB
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #19
Name
wdt
Description
Spectral width for beam 1-5.
Units
m/s
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth
Parameter #20
Name
dpl
Description
Radial Doppler velocity away from the radar for beam 1-5.
Units
m/s
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #21
Name
if_cond
Description
This parameter is the condition code showing the quality of the original data calculated from nonlinear least-square fitting by the Gauss-Newton method, and this value is the integer from 0 to 4. When this value becomes large, the quality of the original data decreases. Moreover, in this data set, for the data not satisfied with the screening condition shown below, this value is replaced by the original condition code plus 10000. If you want to analyze the screening data in the mesosphere, you should exclude the data with condition code of 10000 or more.
Units
1
Support
Parameter #22
Name
pnoise
Description
Noise level for beam 1-5.
Units
dB
Support