Version:2.5.0
NumericalData
ResourceID
spase://IUGONET/NumericalData/RISH/misc/SGK/LTradar/ltr_sgk_csv
ResourceHeader
ResourceName
Observation data of the lower troposphere taken by the LTR at Shigaraki (CSV format)
ReleaseDate
2016-07-21 17:00:00
Description
The 10-minute average observation data in the troposphere (0.9-10 km) taken by the lower troposphere radar (LTR) at Shigaraki in the Shiga prefecture, Japan (34.86N, 136.11E, 385m MSL). The data are stored in the CSV (Comma Separated Values) file named (year)(month)(day).(variable).csv. The variable abbreviations are uwnd, vwnd, wwnd, pwr1, pwr2, pwr3, pwr4, pwr5, wdt1, wdt2, wdt3, wdt4, and wdt5, which mean zonal, meridional and vertical wind velocities, echo power and spectral width for beam 1-5, respectively. The azimuth and zenith angles of beam 1, 2, 3, 4 and 5 are (0, 0), (0, 10), (180, 10), (90, 10), and (270, 10), respectively, in unit of degree. The numbers of the first line of each file represent altitudes, and the second and below are observational date and time (year/month/day hour:minute) which corresponds to the center time of averaging period and data at each altitude. The value of 999 means missing data. The observation data have not been open since April 2006 because the LTR is used for special campaign observations at various sites.
Acknowledgement
If you acquire Shigaraki-LTR data, we ask that you acknowledge us in your use of the data. This may be done by including text such as Shigaraki-LTR 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
Boundary Layer Radar (BLR) / Lower Troposphere Radar (LTR) / LQ7 Observation Data
URL
Language
English
Format
Text.ASCII
ProviderVersion
02.0212
InstrumentIDs
MeasurementType
Profile
TemporalDescription
TimeSpan
StartDate
1999-07-06 15:00:00
StopDate
2006-03-29 08:50:00
Cadence
P10M
SpectralRange
RadioFrequency
ObservedRegion
Earth.NearSurface.Troposphere
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
WGS84
NorthernmostLatitude
34.856
SouthernmostLatitude
34.856
EasternmostLongitude
136.106
WesternmostLongitude
136.106
MinimumElevation
0.9
MaximumElevation
10.0
Keywords
EARTH SCIENCE Atmosphere Atmospheric Winds Wind Profiles
Parameter #1
Name
date
Description
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).
Support
Parameter #2
Name
time
Description
Time in the form hh:mm where hh = hour of day (00-23) and mm = minute of hour. Local time (UT + 09:00:00) is used for time data.
Support
Parameter #3
Name
altitude
Description
Altitude (above sea level)
Units
km
ValidMin
0.9
ValidMax
10.0
Support
SupportQuantity
Positional
Parameter #4
Name
uwnd
Description
Zonal wind (eastward wind is positive.)
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
FillValue
999.0
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #5
Name
vwnd
Description
Meridional wind (northward wind is positive.)
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
FillValue
999.0
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #6
Name
wind
Description
Vertical wind (upflow is positive.)
Units
m/s
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
GEO
FillValue
999.0
Particle
ParticleType
Molecule
ParticleQuantity
Velocity
Parameter #7
Name
pwr1
Description
Echo intensity (arbitrary unit) for beam 1 (azimuth angle:0, zenith angle:0)
Units
dB
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #8
Name
pwr2
Description
Echo intensity (arbitrary unit) for beam 2 (azimuth angle:0, zenith angle:15 before 2000; azimuth angle:0, zenith angle:10 after 2000)
Units
dB
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #9
Name
pwr3
Description
Echo intensity (arbitrary unit) for beam 3 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:180, zenith angle:10 after 2000)
Units
dB
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #10
Name
pwr4
Description
Echo intensity (arbitrary unit) for beam 4 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:90, zenith angle:10 after 2000)
Units
dB
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #11
Name
pwr5
Description
Echo intensity (arbitrary unit) for beam 5 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:270, zenith angle:10 after 2000)
Units
dB
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity
Parameter #12
Name
wdt1
Description
Spectral width (half power full width) for beam 1 (azimuth angle:0, zenith angle:0)
Units
m/s
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth
Parameter #13
Name
wdt2
Description
Spectral width (half power full width) for beam 2 (azimuth angle:0, zenith angle:15 before 2000; azimuth angle:0, zenith angle:10 after 2000)
Units
m/s
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth
Parameter #14
Name
wdt3
Description
Spectral width (half power full width) for beam 3 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:180, zenith angle:10 after 2000)
Units
m/s
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth
Parameter #15
Name
wdt4
Description
Spectral width (half power full width) for beam 4 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:90, zenith angle:10 after 2000)
Units
m/s
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth
Parameter #16
Name
wdt5
Description
Spectral width (half power full width) for beam 5 (azimuth angle:90, zenith angle:15 before 2000; azimuth angle:270, zenith angle:10 after 2000)
Units
m/s
FillValue
999.0
Wave
WaveType
Electromagnetic
WaveQuantity
EquivalentWidth