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84 results for “Meridion”
TIMED TIMED Doppler Interferometer (TIDI) Zonal and Meridional Winds at 60-180 km, Version 0307, 82.28 s Data
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. * TIMED Rules of the Road * ----------------------- Users of TIMED data are asked to respect the following guidelines: * 1) Mission scientific and model results are open to all. * 2) Users should contact the principal investigator, PI, or designated team member of an instrument or modeling group early in an analysis project to discuss the appropriate use of instrument data or model results. This applies to TIMED mission team members, guest investigators, and other members of the scientific community or general public. * 3) Users that wish to publish the results derived from TIMED data should normally offer co-authorship to the PI or his/her designated team member. Co-authorship may be declined. Appropriate acknowledgement to institutions, personnel, and funding agencies should be given. * 4) Users should heed the caveats of investigators as to the interpretation and limitations of data or model results. Investigators supplying data or models may insist that such caveats be published, even if co-authorship is declined. Data and model version numbers should also be specified. * 5) Pre-prints of publications and conference abstracts should be widely distributed to interested parties within the mission and related projects. 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/ +------------------------------------------------------------------------------------------------+
Atlantic Meridional Transect (AMT) cruises
Measurements taken during Atlantic Meridional Transect (AMT) cruises.
DE 2 Fabry-Perot Interferometer (FPI), Thermospheric Neutral Gas Density, Meridional Wind, and Temperature, 8-sec data
The Fabry-Perot Interferometer, FPI, was a High-Resolution Remote Sensing Instrument designed to measure the Thermospheric Temperature, Meridional Wind, and Density of the following Metastable Atoms: Atomic Oxygen, Singlet S and D, and the 2P State of Ionic Atomic Oxygen. The FPI performed a Wavelength Analysis on the Light detected from the Thermospheric Emission Features by spatially scanning the Interference Fringe Plane with a Multichannel Array Detector. The Wavelength Analysis characterized the Doppler Line Profile of the emitting Species. A Sequential Altitude Scan performed by a Commandable Horizon Scan Mirror provided a Cross-Sectional View of the Thermodynamic and Dynamic State of the Thermosphere below the DE 2 Orbit. The Information obtained from this Investigation was used to Study the Dynamic Response of the Thermosphere to the Energy Sources caused by Magnetospheric Electric Fields and the Absorption of Solar Ultraviolet Light in the Thermosphere. The Instrument was based on the Visible Airglow Experiment, VAE, used in the AE Program. The Addition of a Scanning Mirror, the Fabry-Perot Etalon, an Image Plane Detector, and a Calibration Lamp were the Principal Differences. Interference Filters isolated Lines at 5577, 6300, 7320, 5896, and 5200, in Angstroms. The FPI had a Field of View of 0.53°, Half-Cone Angle. More Details are found in P. B. Hays et al., Space Sci. Instrum., 5(4), 395, 1981. From February 16, 1982 to September 11, 1982 the DE Satellite was inverted and the FPI measured Galactic Emissions. NOTE: Animations of DE2-FPI Science Products have been created as Daily Summary Files. The Animations contain Binned Averages displayed as a Color Code against a Geographic Background. The Bin Sizes are 7.5° Latitude and 24.0° Longitude. The Longitude Bin corresponds to the approximate Separation of adjacent Orbits, assuming that DE2 completed 15 Orbits per Day. The Animations are divided by Day, 06-18 LST, and Night, 18-06 LST, where LST is Local Standard Time. All Summary File Information and Animations employ Spacecraft Orbital Attitude Data. Users should note 1, that the DE2-FPI Experiment acquired Airglow Spectra by imaging the Terrestrial Limb below and ahead of the Spacecraft at an approximate Tangent Altitude of 250 km, 2, All Airglow Spectra were acquired while the DE2 Spacecraft orbited in it's Normal Configuration, which corresponded to Calendar Months August to February in 1981 to 1982 and n 1982 to 1983; 3, The Orbital Inclination of DE2 was 90° implying that DE2-FPI always viewed Ahead along the Meridian; 4, And that DE2 flew in an Elliptical Orbit with Perigee of 305 km and Apogee of 1300 km at Launch ans the Attitude of DE2 for each FPI Measurement is included with each reduced Data Point permitting Users to determine the Tangent Latitude corresponding to the 250 km Terrestrial Airglow Limb. The three GIF Animations are: 1. FPI_brightness.gif, which documents the OI, 630.0 nm,, Column Brightness in Units of log10 Rayleighs. Note different Scales for Day and Night. 2. FPI_temperature.gif, which documents the Neutral Thermosphere Temperature in Units of °Kelvin. 3. FPI_wind.gif, which documents the Line of Sight Neutral Wind Component in Units of m/s. The Wind Direction is positive when the Wind blows away from the approaching Spacecraft.
Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea
<p>This dataset contains velocity and potential temperature data observed by the mooring in the deep channel north of New Guinea. It is supplementary of the paper "<strong>Observed Upper Deep Branch of the Pacific Meridional Overturning Circulation North of New Guinea</strong>" submitted to the <em>Journal of Physical Oceanography</em>. Please let me know if you need any more information.</p>
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OpenNeuro
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