Science Keywords>SPECTRAL/ENGINEERING>MICROWAVE>MICROWAVE RADIANCE

TRMM Microwave Imager (TMI) Level 1 Raw and Calibrated Radiance Products (TRMM Product 1A11)

Federal Geographic Data Committee (FGDC) Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: NASA,JAXA, Tropical Rainfall Measuring Mission (TRMM)
Publication_Date: Unknown
Title: TRMM Microwave Imager (TMI) Level 1 Raw and Calibrated Radiance Products (TRMM Product 1A11)
Edition: 7
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=TRMM&dataGroup=Orbital&dataset=1A11%20(Version%20007):%20TMI%20Raw%20Data%20(TMI)&version=007
Description:
Abstract:
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating. TRMM was successfully launched on November 27, at 4:27 PM (EST) from the Tanegashima Space Center in Japan. The TRMM Microwave Imager (TMI) is a nine-channel passive microwave radiometer, which builds on the heritage of the Special Sensor Microwave/Imager (SSM/I) instrument flown aboard the Defense Meteorological Satellite Program (DMSP) platforms. Microwave radiation is emitted by the Earth's surface and by water droplets within clouds. However, when layers of large ice particles are present in upper cloud regions - a condition highly correlated with heavy rainfall - microwave radiation tends to scatter at frequencies above 19 GHz. The TMI detects radiation at five frequencies chosen to discriminate among these processes, thus revealing the likelihood of rainfall. The key to accurate retrieval of rainfall rates by this method is the deduction of cloud precipitation consistent with the radiation measurement at each frequency. The TMI frequencies are 10.65, 19.35, 37 and 85.5 GHz (dual polarization), and 21 GHz (vertical polarization only). The Level 1A product file (1A11) is a concatenation of the Level 0 data with a header record and, as such, is reversible to Level 0. The header record contains information pertaining to orbit times, orbit number, times of the first scan and number of scans, among other things. The Level 0 data contain the actual channel data expressed as "sensor counts." A file contains data for a single orbit with a file size of about 7 MB (uncompressed). There are 16 files of TMI 1A11 data produced per day. Spatial coverage is between 38 degrees North and 38 degrees South owing to the 35 degree inclination of the TRMM satellite. This orbit provides extensive coverage in the tropics and allows each location to be covered at a different local time each day, enabling the analysis of the diurnal cycle of precipitation. File Specifications for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespec.TRMM.V7.pdf Metadata for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespecMeta.TRMM.V7.pdf TRMM V6 vs. V7 Major Data Format Changes: http://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf
Purpose:
Not Available
Supplemental_Information:
REFERENCE: File Specifications for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespec.TRMM.V7.pdf Metadata for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespecMeta.TRMM.V7.pdf TRMM V6 vs. V7 Major Data Format Changes: http://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19971207
Ending_Date: Unknown
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: 38.0
South_Bounding_Coordinate: -38.0
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 > SPECTRAL/ENGINEERING > MICROWAVE > BRIGHTNESS TEMPERATURE
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > MICROWAVE > MICROWAVE RADIANCE
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > MICROWAVE > SENSOR COUNTS
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > PLATFORM CHARACTERISTICS > ATTITUDE CHARACTERISTICS
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > SENSOR CHARACTERISTICS > VIEWING GEOMETRY > SATELLITE LOCAL ZENITH ANGLE
Theme_Keyword: TRMM > TROPICAL RAINFALL MEASURING MISSION
Theme_Keyword: TMI > TRMM MICROWAVE IMAGER
Theme_Keyword: EOS > EARTH OBSERVING SYSTEM
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: TRMM > TROPICAL RAINFALL MEASURING MISSION PROJECT
Theme_Keyword: CWIC > CEOS WGISS INTEGRATED CATALOG
Theme_Keyword: Eosdis
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > TROPICS
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: 16 Orbits Per Day
Temporal_Keyword: Daily - < Weekly
Access_Constraints: None
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GES DISC HELP DESK SUPPORT GROUP
Contact_Person_Primary:
Contact_Person: HYDROLOGY DATA SUPPORT TEAM
Contact_Position: TECHNICAL CONTACT
Contact_Position: TECHNICAL 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_Address:
Address_Type: Mailing and Physical Address
Address: Hydrology Data Support Team, Code 610.2
Address: Goddard Space Flight Center
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: 301-614-5224
Contact_Voice_Telephone: (301) 614-5165
Contact_Facsimile_Telephone: 301-614-5268
Contact_Facsimile_Telephone: (301) 614-5268
Contact_Electronic_Mail_Address: gsfc-help-disc@lists.nasa.gov
Contact_Electronic_Mail_Address: gsfc-help-disc@lists.nasa.gov
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
For the Level 1A TMI product, quality indicators are set indicating whether anomalies have been detected in the decoding of the Attitude Control System (ACS), Housekeeping (HK), and Science data packets.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 5-45 km
Longitude_Resolution: 5-45 km
Geographic_Coordinate_Units: Decimal degrees
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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: TRMM Level 1A Radiance 1A11
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Text
Transfer_Size: Average file size: 6200 KB
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/prese...
Access_Instructions:
Data access for TRMM TMI Raw Data (1A_11)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://mirador.gsfc.nasa.gov/cgi-bin/mirador/homep...
Access_Instructions:
DESCRIPTION = The Mirador Earth Science Data Search Tool includes TRMM 1A11, TRMM Microwave Imager (TMI) Level 1 Raw and Calibrated Radiance Products. Mirador features include location and event gazetteers.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://disc.gsfc.nasa.gov/precipitation/index.shtm...
Access_Instructions:
This URL contains information and data access for all of the Goddard DAAC's hydrology data holdings, including TRMM data from the TMI, Precipitation Radar (PR), and Visible and Infrared Scanner (VIRS) instruments, the Ground Validation (GV) radar data, and ancillary and correlative data products.
Fees: None
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Metadata_Reference_Information:
Metadata_Date: 20110715
Metadata_Review_Date: 20130322
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: HYDROLOGY DATA SUPPORT TEAM
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Hydrology Data Support Team, Code 610.2
Address: Goddard Space Flight Center
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 614-5165
Contact_Facsimile_Telephone: (301) 614-5268
Contact_Electronic_Mail_Address: gsfc-help-disc@lists.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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