UARS Wind Imaging Interferometer (WINDII) Level 3AT V001 (UARWI3AT) at GES DISC
Entry ID: GES_DISC_UARWI3AT_V001

[ Get Data ]
[ Update this Record ]

Summary
Abstract: The Wind Imaging Interferometer (WINDII) on NASA's Upper Atmosphere
Research Satellite (UARS) measures wind, temperature, and emission
rates in the mesosphere and thermosphere (80 to 300 km), by observing
the Doppler shift of visible airglow emissions.

The WINDII instrument is an all-glass field-widened achromatically and
thermally compensated phase-stepping Michelson interferometer, along
with a bare CCD detector that images the airglow limb through the
interferometer. The instrument views the atmosphere simultaneouly in
two perpendicular directions, 45 degrees and 135 degrees from the UARS
velocity vector, to obtain the horizontal wind vector. Measurements
are made day and night.

WINDII Level 3A data products consist of profiles that have been
interpolated both vertically and horizontally from the original
profiles to standard surfaces and locations defined by the UARS
project for all limb-viewing instruments. The Level 3A format is
common to all UARS instruments to allow for intercomparison.

The WINDII Level 3A data products consist of two types: Level 3AT and
3AL, both at standard pressure and altitude surfaces. Level 3AT files
are time-ordered profiles and spaced at intervals of 65.536 seconds,
or about 495 km along the orbital track. Level 3AL files are profiles
at the intersection of the orbital track spaced at intervals of 4
degrees latitude.

There are 3 subtypes or parameters for each Level 3AT and 3AL data
product, for a total of 6 products per day. HRDI measurements are
made on altitude (A), and pressure (P) surfaces for each Level 3AT and
3AL type. The following parameters are measured:

1. MERWIN_A - meridional winds (m/s) on altitude surfaces
2. ZONWIN_A - zonal winds (m/s) on altitude surfaces
3. TEMP - atmospheric temperature (degrees K)

The horizontal resolution is 495 km along the orbital track for Level
3AT files, and 4 degrees latitude for Level 3AL files. The vertical
resolution for the UARS altitude surfaces are defined as:

z(i) = 5*i km, for 1 <= i <= 12
z(i) = 60 + (i-12)*3 km, for 13 <= i <= 32
z(i) = 120 + (i-32)*5 km, for 33 <= i <= 88

where "i" is the index of the data array.

Related URL
Link: GET DATA > MIRADOR
Description: Access UARS UARWI3AT Data Set.


Link: VIEW RELATED INFORMATION > USER'S GUIDE
Description: README


Geographic Coverage
 N: 80.0 S: -80.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Title: UARS Wind Imaging Interferometer (WINDII) Level 3AT
Version: 001
Online Resource: http://mirador.gsfc.nasa.gov/cgi-bin/mirador/presentNavigation.pl?t...


Temporal Coverage
Start Date: 1991-11-04
Stop Date: 1997-08-19


Location Keywords
GEOGRAPHIC REGION > GLOBAL
VERTICAL LOCATION > MESOSPHERE


Science Keywords
ATMOSPHERE >ATMOSPHERIC TEMPERATURE >AIR TEMPERATURE    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >UPPER LEVEL WINDS >MERIDIONAL WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >UPPER LEVEL WINDS    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >VERTICAL WIND MOTION    [Definition]
ATMOSPHERE >ATMOSPHERIC RADIATION >AIRGLOW    [Definition]
ATMOSPHERE >ATMOSPHERIC WINDS >WIND PROFILES    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE


Platform
UARS >Upper Atmosphere Research Satellite    [Information]


Instrument
WINDII >Wind Imaging Interferometer    [Information]


Project
EOSDIS >Earth Observing System Data Information System    [Information]
ESIP >Earth Science Information Partners Program    [Information]
UARS >Upper Atmosphere Research Satellite    [Information]
CWIC >CEOS WGISS Integrated Catalog    [Information]


Keywords
DAILY DATA
EOSDIS
IDN_NODE GSFC/GSFC_DAAC
MERIDIONAL WIND
MIDDLE ATMOSPHERE
SOUTHERLY WIND COMPONENT
THERMOSPHERE
U WIND
UPPER ATMOSPHERE
V WIND
WESTERLY WIND COMPONENT
WIND PROFILES
ZONAL WIND


Originating Center
GSFC_DAAC


Data Center
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA    [Information]
Data Center URL: http://disc.gsfc.nasa.gov/
Dataset ID: WINDII 3AL
Dataset ID: WINDII 3AT

Data Center Personnel
Name: GES DISC HELP DESK SUPPORT GROUP
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


Personnel
JAMES EDWARD JOHNSON
Role: DIF AUTHOR
Phone: 301-614-5121
Email: James.Johnson at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Code 610.2
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA


GORDON G. SHEPHERD
Role: INVESTIGATOR
Phone: (416) 736-5247
Email: gordon at windic.yorku.ca
Contact Address:
Centre for Research in Experimental Space Science
York University
4700 Keele Street
City: North York
Province or State: Ontario
Postal Code: L4J 3N3
Country: CANADA


Publications/References
Reber, Carl A., Trevathan, Charles E., The Upper Atmosphere Research
Satellite, J. Geophys. Res., Vol. 98, No. D6, pp 10643-10647, 1993.

Shepherd, G. G., et al., WINDII, the Wind Imaging Interferometer on
the Upper Atmosphere Research Satellite, J. Geophys. Res., Vol. 98,
No. D6, pp 10725-10750, 1993.

Creation and Review Dates
DIF Creation Date: 2007-02-26
Last DIF Revision Date: 2009-08-21

[ Update this Record ]


Link to Web Site