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UARS High Resolution Doppler Imager (HRDI) Level 3AT

Federal Geographic Data Committee (FGDC) Metadata:

Identification_Information
Data_Quality_Information
Spatial_Reference_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Unknown

Publication_Date: Unknown

Title: UARS High Resolution Doppler Imager (HRDI) Level 3AT

Edition: 001

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name:
Issue_Identification:

Publication_Information:

Publication_Place:
Publisher:

Other_Citation_Details:

Online_Linkage: http://mirador.gsfc.nasa.gov/cgi-bin/mirador/presentNavigation.pl?tree=project&project=UARS&dataGroup=HRDI&dataset=HR3AT

Description:

Abstract:: The High Resolution Doppler Imager (HRDI) on NASA's Upper Atmosphere Research Satellite (UARS) measures winds and other parameters in the mesosphere and lower thermosphere by primarily observing the Doppler shift of emitted light, and in the stratosphere by observing the Doppler shift of atmospheric absorption features. The HRDI instrument views the atmosphere in two different directions, and obtains the horizontal wind vector by combing information from the observations. Measurements are made with a triple-etalon, high-precision Fabry-Perot interferometer, viewing the atmosphere through a two-axis gimbaled telescope. The HRDI 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 HRDI 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 approximately 495 km along the tangent track. Level 3AL files are profiles at the intersection of the tangent track spaced at intervals of 4 degrees latitude. There are 4 subtypes or parameters for each Level 3AT and 3AL data product, for a total of 8 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. MERWIN_P - meridional winds (m/s) on pressure surfaces 3. ZONWIN_A - zonal winds (m/s) on altitude surfaces 4. ZONWIN_P - zonal winds (m/s) on pressure surfaces The horizontal resolution is 495 km along-track for the Level 3AT files, and 4 degrees latitude for Level 3AL files. The vertical resolution for the UARS profiles on UARS Pressure Surfaces is defined as: P(i) = 1000*10^(-i/6) millibars, for i = 0,1,2,... which gives approximately 2.5 km increments between pressure surfaces. Here &i& is the index of the data array. The UARS altitude surfaces are defined as: z(i) = 5*i km, for i<=12 z(i) = 60 + (i-12)*3 km, for 13 <= i <= 32 z(i) = 120 + (i-32)*5 km, for 33 <= i <= 88
Purpose:: Not Available
Supplemental_Information:: REFERENCE: Reber, Carl A., Trevathan, Charles E., The Upper Atmosphere Research Satellite, J. Geophys. Res., Vol. 98, No. D6, pp 10643-10647 June 20, 1993. Hays, Paul B., et al., The High-Resolution Doppler Imager on the Upper Atmosphere Research Satellite, J. Geophys. Res., Vol. 98, No. D6, pp 10713-10723, June 20, 1993.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19911106
Ending_Date: 19990130

Currentness_Reference:Unknown

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 80.0
South_Bounding_Coordinate: -80.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > U WIND COMPONENT
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS > V WIND COMPONENT
Theme_Keyword: EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > WIND PROFILES
Theme_Keyword: UARS > UPPER ATMOSPHERE RESEARCH SATELLITE
Theme_Keyword: HRDI > HIGH RESOLUTION DOPPLER IMAGER
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: UARS > UPPER ATMOSPHERE RESEARCH SATELLITE
Theme_Keyword: CWIC > CEOS WGISS INTEGRATED CATALOG
Theme_Keyword: Daily Data
Theme_Keyword: Eosdis
Theme_Keyword: Idn_node Gsfc_daac
Theme_Keyword: Meridional Wind
Theme_Keyword: Middle Atmosphere
Theme_Keyword: Southerly Wind Component
Theme_Keyword: Thermosphere
Theme_Keyword: U Wind
Theme_Keyword: Upper Atmosphere
Theme_Keyword: V Wind
Theme_Keyword: Westerly Wind Component
Theme_Keyword: Wind Profiles
Theme_Keyword: Zonal Wind
Theme_Keyword: CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > GLOBAL
Place_Keyword: VERTICAL LOCATION > MESOSPHERE

Temporal:

Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Daily
Temporal_Keyword: Daily - < Weekly

Access_Constraints: Not Available

Use_Constraints:

Not Available

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: VINCENT J. ABREU

Contact_Position: INVESTIGATOR

Contact_Address:

Address_Type: Mailing and Physical Address
Address: The University of Michigan
Address: Space Physics Research Laboratory
Address: 2455 Hayward
City: Ann Arbor
State_or_Province: MI
Postal_Code: 48109-2143
Country: USA

Contact_Voice_Telephone: (313) 747-3640

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:: Not Available
Process_Date: Unknown

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 4 Degrees
Longitude_Resolution: 4 Degrees
Geographic_Coordinate_Units: Decimal degrees

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: Not Available
Altitude_Resolution: 2.5 km
Altitude_Distance_Units: Not Available
Altitude_Encoding_Method: Implicit coordinate

Depth_System_Definition:

Depth_Datum_Name: Not Available
Depth_Resolution: 2.5 km
Depth_Distance_Units: Not Available
Depth_Encoding_Method: Implicit coordinate

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: NASA/GSFC/SED/ESD/GCDC/GESDISC > 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
Contact_Person: GES DISC HELP DESK SUPPORT GROUP

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address
Address: Goddard Earth Sciences Data and Information Services Center
Address: Code 610.2
Address: NASA Goddard Space Flight Center
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA

Contact_Voice_Telephone: 301-614-5224

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: gsfc-help-disc@lists.nasa.gov

Resource_Description: HRDI 3AL

Resource_Description: HRDI 3AT

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: http://disc.gsfc.nasa.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: http://mirador.gsfc.nasa.gov/cgi-bin/mirador/colle...

Access_Instructions:

Access UARS HRDI Data Products.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93...

Access_Instructions:

Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20070226

Metadata_Review_Date: 20090821

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: JAMES EDWARD JOHNSON

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address
Address: NASA Goddard Space Flight Center
Address: Code 610.2
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA

Contact_Voice_Telephone: 301-614-5121

Contact_Electronic_Mail_Address: James.Johnson@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

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