Version:2.5.0
NumericalData
ResourceID
spase://IUGONET/NumericalData/RISH/misc/KTB/MWradar/mwr_ktb_mpd
ResourceHeader
ResourceName
Observation data of meteor traces in the equatorial mesosphere and lower thermosphere taken by the meteor wind radar at Kototabang (text format)
ReleaseDate
2016-07-21 16:51:00
Description
The original observation data of meteor trails and its radial velocity in the equatorial mesosphere and lower thermosphere (70-110 km) taken by the meteor wind radar at Kototabang, Indonesia (0.20S, 100.32E, 865m MSL). The data are stored in the text filenamed mp(year)(month)(day).kototabang.mpd. The lines 1-29 represent the file header which contains the site location (latitude, longitude), height resolution, the number of range gate number and radar status (operation frequency, antenna coordinate, record length and phase offset etc.). The line 30 is each parameter name ('Date', 'Time', 'File', 'Rge', 'Ht', 'Vrad', 'delVr', 'Theta', 'Phi0', 'Ambig', 'Delphase', 'ant pair', 'IREX', 'amax', 'Tau', 'vmet', and 'snrdb') while the lines 31 and below are date, time (universal time) and observation data.
Acknowledgement
If you would like to use the following data for scientific purpose, please read and follow the DATA USE POLICY (http://database.rish.kyoto-u.ac.jp/arch/iugonet/pon_mf/png/daily/data_policy/Data_Use_Policy_e.html).
Contacts
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
Meteor Wind and Medium Frequency Radar Data over Indonesia
URL
Language
English
Format
Text.ASCII
ProviderVersion
Data version 1.0
InstrumentIDs
MeasurementType
Profile
TemporalDescription
TimeSpan
StartDate
2002-11-15 11:51:48
RelativeStopDate
-P1D
Cadence
PT1S
SpectralRange
RadioFrequency
ObservedRegion
Earth.NearSurface.EquatorialRegion
ObservedRegion
Earth.NearSurface.Mesosphere
ObservedRegion
Earth.NearSurface.Thermosphere
SpatialCoverage
CoordinateSystem
CoordinateRepresentation
Spherical
CoordinateSystemName
WGS84
NorthernmostLatitude
-0.204
SouthernmostLatitude
-0.204
EasternmostLongitude
100.320
WesternmostLongitude
100.320
MinimumElevation
30.7
MaximumElevation
118.1
Keywords
EARTH SCIENCE Atmosphere Atmospheric Winds Wind Profiles
Parameter #1
Name
Date
Description
The date of the detection CCYY/MM/DD relative to UTC
Units
day
Support
Parameter #2
Name
Time
Description
The time of the detection HH:MM:SS.XYZ in UTC where XYZ is the millisecond of the detection. (Note that this represents the relative accuracy of the detection, not the absolute accuracy which, in the normal mode of operation, is +/- 1 second).
Units
millisecond
Support
Parameter #3
Name
File
Description
The file name extension used to store the raw data for this detection (VWXYZ characters from [0-9,A-Z]).
Units
1
Support
Parameter #4
Name
Rge
Description
The range of the detection in km to one decimal place (WXY.Z).
Units
km
Support
SupportQuantity
Positional
Parameter #5
Name
Ht
Description
The corrected height above ground of the detection in km (WXY.Z).
Units
km
Support
SupportQuantity
Positional
Parameter #6
Name
Vrad
Description
The radial drift velocity of the trail in m/s (WX.YZ).
Units
m/s
Support
Parameter #7
Name
delVr
Description
The standard deviation of the radial velocity measurement obtained from the 5 antenna pairs in the interferometer. Note that the analysis rejects data with delVr > 5.5 m/s so that this represents a limiting value for this field in the MPD file.
Units
m/s
Support
Parameter #8
Name
Theta
Description
The zenith angle of the detection in degrees (XY.Z).
Units
degree
Support
Parameter #9
Name
Phi0
Description
The azimuth angle of the detection in degrees measured anticlockwise from East (WXY.Z).
Units
degree
Support
Parameter #10
Name
Ambig
Description
The number of locations this detection could have originated from (X).
Units
1
Support
Parameter #11
Name
Delphase
Description
The worst phase error between antennas if the measured azimuth and zenith of the detection are correct (XY.Z). Measured in degrees.
Units
degree
Support
Parameter #12
Name
ant pair
Description
The antenna pair with the worst phase error (XY).
Units
1
Support
Parameter #13
Name
IREX
Description
The receive channel used in the analysis for certain single-channel data quality tests. This is always "1" during normal operation.
Units
1
Support
Parameter #14
Name
amax
Description
The peak value of the amplitude of the meteor echo in digitizer units. This may be greater than 32767 if channel saturation has occurred (VWXYZ).
Units
1
Support
Parameter #15
Name
Tau
Description
The decay time of the meteor in seconds. This is a half-life, not a 1/e time constant (.XYZ).
Units
second
Support
Parameter #16
Name
vmet
Description
The entrance speed of the meteor in km/s. Bad values are characterized with "-9.99" (WX.YZ).
Units
1
Support
Parameter #17
Name
snrdb
Description
The signal-to-noise ratio for this meteor (X.YZ).
Units
dB
Wave
WaveType
Electromagnetic
WaveQuantity
Intensity