The TIMED Doppler Interferometer, TIDI, instrument is a Fabry-Perot interferometer designed to measure zonal and meridional winds in the mesosphere and lower thermosphere.
This TIMED TIDI data product contains neutral gas doppler temperature estimates and vector wind velocities estimated from line of sight inverted wind profiles based on rotational line measurements of molecular Oxygen, O₂, (0,0) by using the TIDI P9 763.78 nm filter. This Level 3 data set of wind vectors contains that are mapped onto fixed angle-along-the-track grids. Vertical resolution is ~2 km at the lower altitudes and 25 km at the thermosphere, with an accuracy that approaches approximately 3 m/sec. Each profile is annotated with ancillary data including profile position and processing status.
Users of TIMED data are asked to respect the following guidelines:
TIMED TIDI data are available from the following access URLs but the linked data are not stored by using the Common Data Format, CDF. Note that this SPASE Numerical Description only describes the MESSENGER Magnetometer data stored in Common Data Files.
+------------------------------------------------------------------------------------------------+
| Data Source | Data Access URL |
|------------------------------------------------------------------------------------------------|
| University of Michigan | ftp://tidi.engin.umich.edu/tidi/ |
| High Altitude Observatory, HAO | http://download.hao.ucar.edu/archive/tidi/plots/winds/zonave/ |
+------------------------------------------------------------------------------------------------+
Version:2.3.1
The TIMED Doppler Interferometer, TIDI, instrument is a Fabry-Perot interferometer designed to measure zonal and meridional winds in the mesosphere and lower thermosphere.
This TIMED TIDI data product contains neutral gas doppler temperature estimates and vector wind velocities estimated from line of sight inverted wind profiles based on rotational line measurements of molecular Oxygen, O₂, (0,0) by using the TIDI P9 763.78 nm filter. This Level 3 data set of wind vectors contains that are mapped onto fixed angle-along-the-track grids. Vertical resolution is ~2 km at the lower altitudes and 25 km at the thermosphere, with an accuracy that approaches approximately 3 m/sec. Each profile is annotated with ancillary data including profile position and processing status.
Users of TIMED data are asked to respect the following guidelines:
TIMED TIDI data are available from the following access URLs but the linked data are not stored by using the Common Data Format, CDF. Note that this SPASE Numerical Description only describes the MESSENGER Magnetometer data stored in Common Data Files.
+------------------------------------------------------------------------------------------------+
| Data Source | Data Access URL |
|------------------------------------------------------------------------------------------------|
| University of Michigan | ftp://tidi.engin.umich.edu/tidi/ |
| High Altitude Observatory, HAO | http://download.hao.ucar.edu/archive/tidi/plots/winds/zonave/ |
+------------------------------------------------------------------------------------------------+
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Timothy.L.Killeen |
| 2. | MetadataContact | spase://SMWG/Person/Robert.M.Candey |
| 3. | MetadataContact | spase://SMWG/Person/Lee.Frost.Bargatze |
TIDI data and experiment home page hosted by National Center for Atmospheric Research, NCAR
TIDI data and experiment home page hosted by University of Michigan, UM
TIMED Mission Data Center hosted by the Johns Hopkins University, Applied Physics Laboratory, JHU/APL
General information concerning the TIMED, TIMED Doppler Interferometer, TIDI, instrument
Access to Data in CDF Format via ftp from SPDF
Access to Data in CDF Format via http from SPDF
Access to ASCII, CDF, and Plots via NASA/GSFC CDAWeb
Altitude, grid point values
Epoch Time Tags, ascending orbit phase, cold side
Zonal Wind Velocity from 75 km to 100 km at 5 km intervals, ascending orbit phase, cold side
Zonal Wind Velocity from 75 km to 100 km at 5 km intervals, ascending orbit phase, warm side
Zonal Wind Velocity from 75 km to 100 km at 5 km intervals, descending orbit phase, cold side
Zonal Wind Velocity from 75 km to 100 km at 5 km intervals, descending orbit phase, warm side
Meridional Wind Velocity from 75 km to 100 km at 5 km intervals, ascending orbit phase, cold side
Meridional Wind Velocity from 75 km to 100 km at 5 km intervals, ascending orbit phase, warm side
Meridional Wind Velocity from 75 km to 100 km at 5 km intervals, descending orbit phase, cold side
Meridional Wind Velocity from 75 km to 100 km at 5 km intervals, descending orbit phase, warm side
Zonal Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, ascending orbit phase, cold side
Zonal Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, ascending orbit phase, warm side
Zonal Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, descending orbit phase, cold side
Zonal Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, descending orbit phase, warm side
Variance, Zonal Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Variance, Zonal Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Variance, Zonal Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Variance, Zonal Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Meridional Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, ascending orbit phase, cold side
Meridional Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, ascending orbit phase, warm side
Meridional Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, descending orbit phase, cold side
Meridional Wind Profile from 75 km to 100 km at 5 km intervals, velocity as function of time and altitude, descending orbit phase, warm side
Variance, Meridional Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Variance, Meridional Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Variance, Meridional Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Variance, Meridional Wind Velocity, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Geodetic Latitude, ascending orbit phase, cold side
Geodetic Latitude, ascending orbit phase, warm side
Geodetic Latitude, descending orbit phase, cold side
Geodetic Latitude, descending orbit phase, warm side
Geodetic East Longitude, ascending orbit phase, cold side
Geodetic East Longitude, ascending orbit phase, warm side
Geodetic East Longitude, descending orbit phase, cold side
Geodetic East Longitude, descending orbit phase, warm side
Solar Zenith Angle, SZA, ascending orbit phase, cold side
Solar Zenith Angle, SZA, ascending orbit phase, warm side
Solar Zenith Angle, SZA, descending orbit phase, cold side
Solar Zenith Angle, SZA, descending orbit phase, warm side
Local Solar Time, LST, ascending orbit phase, cold side
Local Solar Time, LST, ascending orbit phase, warm side
Local Solar Time, LST, descending orbit phase, cold side
Local Solar Time, LST, descending orbit phase, warm side
Magnetic Latitude, ascending orbit phase, cold side
Magnetic Latitude, ascending orbit phase, warm side
Magnetic Latitude, descending orbit phase, cold side
Magnetic Latitude, descending orbit phase, warm side
Magnetic Longitude, ascending orbit phase, cold side
Magnetic Longitude, ascending orbit phase, warm side
Magnetic Longitude, descending orbit phase, cold side
Magnetic Longitude, descending orbit phase, warm side
Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Variance, Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Estimated Variance, Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, cold side
Measurement Universal Time Year and Day of Year, YYYYdoy format, ascending orbit phase, cold side
Date and Time since GPS Measurement Epoch, ascending orbit phase, cold side
Millisecond of the Measurement Time, ascending orbit phase, cold side
Universal Time of the Measurement, ascending orbit phase, cold side
Record Index Number of the Current Record in the File, ascending orbit phase, cold side
Data Quality Flag, T=OK, F=Not OK, ascending orbit phase, cold side
Lunar Zenith Angle, LZA, assigned to the profile, ascending orbit phase, cold side
Track Angle, assigned to the profile, ascending orbit phase, cold side, equal to 360° at the first ascending node
Table ID, identifier of the scan table controlling the measurement, ascending orbit phase, cold side
Measure Track, the side of the spacecraft observed, ascending orbit phase, cold side, C=Cold, W=Warm
Flight Direction, ascending orbit phase, cold side, F=Front, B=Back
South Atlantic Anomaly, SAA, Flag, T=In SAA, F=Not in SAA, ascending orbit phase, cold side
Epoch Time Tags, descending orbit phase, cold side
Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Variance, Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Estimated Variance, Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, cold side
Measurement Universal Time Year and Day of Year, YYYYdoy format, descending orbit phase, cold side
Date and Time since GPS Measurement Epoch, descending orbit phase, cold side
Millisecond of the Measurement Time, descending orbit phase, cold side
Universal Time of the Measurement, descending orbit phase, cold side
Record Index Number of the Current Record in the File, descending orbit phase, cold side
Data Quality Flag, T=OK, F=Not OK, descending orbit phase, cold side
Lunar Zenith Angle, LZA, assigned to the profile, descending orbit phase, cold side
Track Angle, assigned to the profile, descending orbit phase, cold side, equal to 360° at the first descending node
Table ID, identifier of the scan table controlling the measurement, descending orbit phase, cold side
Measure Track, the side of the spacecraft observed, descending orbit phase, cold side, C=Cold, W=Warm
Flight Direction, descending orbit phase, cold side, F=Front, B=Back
South Atlantic Anomaly, SAA, Flag, T=In SAA, F=Not in SAA, descending orbit phase, cold side
Epoch Time Tags, ascending orbit phase, warm side
Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Variance, Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Estimated Variance, Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, ascending orbit phase, warm side
Measurement Universal Time Year and Day of Year, YYYYdoy format, ascending orbit phase, warm side
Date and Time since GPS Measurement Epoch, ascending orbit phase, warm side
Millisecond of the Measurement Time, ascending orbit phase, warm side
Universal Time of the Measurement, ascending orbit phase, warm side
Record Index Number of the Current Record in the File, ascending orbit phase, warm side
Data Quality Flag, T=OK, F=Not OK, ascending orbit phase, warm side
Lunar Zenith Angle, LZA, assigned to the profile, ascending orbit phase, warm side
Track Angle, assigned to the profile, ascending orbit phase, warm side, equal to 360° at the first ascending node
Table ID, identifier of the scan table controlling the measurement, ascending orbit phase, warm side
Measure Track, the side of the spacecraft observed, ascending orbit phase, warm side, C=Cold, W=Warm
Flight Direction, ascending orbit phase, warm side, F=Front, B=Back
South Atlantic Anomaly, SAA, Flag, T=In SAA, F=Not in SAA, ascending orbit phase, warm side
Epoch Time Tags, descending orbit phase, warm side
Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Variance, Volume Emission Rate, VER, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Estimated Variance, Inverted Doppler Temperature, O₂ atmospheric Oxygen, (O,O) airglow emissions, P9 line, averaged, descending orbit phase, warm side
Measurement Universal Time Year and Day of Year, YYYYdoy format, descending orbit phase, warm side
Date and Time since GPS Measurement Epoch, descending orbit phase, warm side
Millisecond of the Measurement Time, descending orbit phase, warm side
Universal Time of the Measurement, descending orbit phase, warm side
Record Index Number of the Current Record in the File, descending orbit phase, warm side
Data Quality Flag, T=OK, F=Not OK, descending orbit phase, warm side
Lunar Zenith Angle, LZA, assigned to the profile, descending orbit phase, warm side
Track Angle, assigned to the profile, descending orbit phase, warm side, equal to 360° at the first descending node
Table ID, identifier of the scan table controlling the measurement, descending orbit phase, warm side
Measure Track, the side of the spacecraft observed, descending orbit phase, warm side, C=Cold, W=Warm
Flight Direction, descending orbit phase, warm side, F=Front, B=Back
South Atlantic Anomaly, SAA, Flag, T=In SAA, F=Not in SAA, descending orbit phase, warm side
Epoch Time Tags, cold side
Epoch Time Tags, warm side
Epoch Time Tags, complete
Ascending/Descending or Warm/Cold Flags, flag variable stating whether variable is ascending/descending or warm/cold