
Metadata: 
   Identification Information: 
      Dataset Identifier: 
         gov.noaa.class:J2-XGDR
      Citation: 
         Citation Information: 
            Originator: 
               DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and 
               Distribution, NESDIS, NOAA, U.S. Department of Commerce
            Originator: 
               EUMETSAT > European Meteorological Satellite Organisation
            Originator: 
               FR/CNES > Centre National d'Etudes Spatiales, France
            Publication Date: 
               Unpublished material
            Title: 
               OSTM/Jason-2: Level-2 Geophysical Data Records
            Online Linkage: 
               http://www.class.noaa.gov/
            CI Online Resource: 
               Linkage: 
                  http://www.class.noaa.gov/
               Name: 
                  OSTM/Jason-2: Level-2 Geophysical Data Records
               Description: 
                  Information about Level-2 Geophysical Data Records from JASON-2 
                  satellite archived and distributed at CLASS.
               Function: 
                  information
            CI Online Resource: 
               Linkage: 
                  http://www.class.noaa.gov/
               Name: 
                  OSTM/Jason-2: Level-2 Geophysical Data Records
               Description: 
                  Search Level-2 Geophysical Data Records from JASON-2 satellite 
                  archived and distributed at CLASS.
               Function: 
                  search
            Citation Identifier: 
               gov.noaa.class:J2-XGDR
      Description: 
         Abstract: 
            The level 2 geophysical data records derived from instruments aboard 
            the JASON-2 satellite and are available as 3 datatypes: 
            Operational Geophysical Data Records (OGDR), Interim Geophysical 
            Data Records (IGDR) and final Geophysical Data Records (GDR). The 
            OGDRs are near-real-time records and are generated every 3-5 
            hours. They are based on orbits from DORIS propagator and forecast 
            meteorological fields for the geophysical corrections. The IGDRs 
            are based on preliminary DORIS ephemeris, analyzed meteorological 
            grids, and preliminary auxiliary data files. They have a data 
            latency of 1 - 2 days. The S-IGDR is a superset of the IGDR, 
            containing the original radar echo "waveform" data. The GDRs are 
            based on final high-precision DORIS (perhaps combined with GPS) 
            ephemeris, final meteorological grids, ancillary and auxiliary 
            data files. S-GDR is a superset of the GDR, containing the 
            waveform data. They are generated every 10 days. Sea Surface 
            Height Anomaly (SSHA) files are available for IGDR and GDR. All 
            files are available in NetCDF format and the OGDR is also 
            available in BUFR format.
         Purpose: 
            To ensure operational continuity for the collection and distribution 
            of high-resolution data on ocean currents and their variations, as 
            well as sea surface height measurements.
      Time Period of Content: 
         Time Period Information: 
            Range of Dates/Times: 
               Beginning Date: 
                  200807
               Ending Date: 
                  Unknown
         Currentness Reference: 
            ground condition
      Status: 
         Progress: 
            Planned
         Maintenance and Update Frequency: 
            Every 3 hours, daily and every 10 days.
      Spatial Domain: 
         Bounding Coordinates: 
            West Bounding Coordinate: 
               -180
            East Bounding Coordinate: 
               180
            North Bounding Coordinate: 
               66
            South Bounding Coordinate: 
               -66
      Processing Level: 
         Processing Level Identifier: 
            NOAA Level 2
         Processing Level Authority: 
            Citation Information: 
               Originator: 
                  Standards Working Group, Federal Geographic Data Committee
               Publication Date: 
                  20021009
               Title: 
                  Content Standard for Digital Geospatial Metadata: Extensions 
                  for Remote Sensing Metadata - Appendix B, NOAA Data Product 
                  Levels
               Edition: 
                  FGDC-STD-012-2002
               Publication Information: 
                  Publication Place: 
                     590 National Center
                     Reston, VA 20192
                  Publisher: 
                     Federal Geographic Data Committee Secretariat
                     c/o U.S. Geological Survey
               Online Linkage: 
                  http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf
               CI Online Resource: 
                  Linkage: 
                     http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf
                  Protocol: 
                     http
                  Application Profile: 
                     PDF
                  Name: 
                     Content Standard for Digital Geospatial Metadata: Extensions 
                     for Remote Sensing Metadata, FGDC-STD-012-2002
                  Description: 
                     The purpose of this standard is to provide extensions to the 
                     Federal Geographic Data Committee (FGDC) Content Standard 
                     for Digital Geospatial Metadata for describing geospatial 
                     data obtained from remote sensing.
                  Function: 
                     information
      Keywords: 
         Theme: 
            Theme Keyword Thesaurus: 
               ISO 19115 Topic Category
            Theme Keyword: 
               climatologyMeteorologyAtmosphere
            Theme Keyword: 
               oceans
            Theme Keyword: 
               elevation
         Theme: 
            Theme Keyword Thesaurus: 
               NASA/GCMD Earth Science Keywords
            Theme Keyword: 
               Earth Science > Oceans > Coastal Processes > Sea Surface Height
            Theme Keyword: 
               Earth Science > Oceans > Sea Surface Topography > Sea Surface Height
            Theme Keyword: 
               Earth Science > Oceans > Ocean Waves > Significant Wave Height
            Theme Keyword: 
               Earth Science > Oceans > Ocean Winds > Surface Winds
         Theme: 
            Theme Keyword Thesaurus: 
               None
            Theme Keyword: 
               altimetry
            Theme Keyword: 
               sea surface height anomaly
         Place: 
            Place Keyword Thesaurus: 
               NASA/GCMD Location Keywords
            Place Keyword: 
               Geographic Region > Global Ocean
            Place Keyword: 
               Vertical Location > Sea Surface
      Platform and Instrument Identification: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Platform Full Name: 
            JASON-2
         Instrument Full Name: 
            Poseidon-3
      Platform and Instrument Identification: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Platform Full Name: 
            JASON-2
         Instrument Full Name: 
            Advanced Microwave Radiometer
         Instrument Short Name: 
            AMR
      Platform and Instrument Identification: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Platform Full Name: 
            JASON-2
         Instrument Full Name: 
            Doppler Orbitography and Radiopositioning Integrated by Satellite
         Instrument Short Name: 
            DORIS
      Platform and Instrument Identification: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Platform Full Name: 
            JASON-2
         Instrument Full Name: 
            Global Positioning System Payload
         Instrument Short Name: 
            GPSP
      Platform and Instrument Identification: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Platform Full Name: 
            JASON-2
         Instrument Full Name: 
            Laser Retroreflector Array
         Instrument Short Name: 
            LRA
      Access Constraints: 
         None
      Use Constraints: 
         None
      Point of Contact: 
         Contact Information: 
            Contact Organization Primary: 
               Contact Organization: 
                  NOAA/NESDIS/STAR/SOCD/LSA
               Contact Person: 
                  John Lillibridge
            Contact Position: 
               NOAA OSTM Project Scientist
            Contact Address: 
               Address Type: 
                  Mailing
               Address: 
                  NOAA/NESDIS/STAR: E/RA31; 1335 East-West Hwy. #5344
               City: 
                  Silver Spring
               State or Province: 
                  MD
               Postal Code: 
                  20910
               Country: 
                  USA
            Contact Voice Telephone: 
               (301)713-2857 x 121
            Contact Facsimile Telephone: 
               (301)713-3136
            Contact Electronic Mail Address: 
               john.lillibridge@noaa.gov
            Hours of Service: 
               TBD
   Data Quality Information: 
      Attribute Accuracy: 
         Attribute Accuracy Report: 
            The sea surface height shall be provided with a global and ultimate 
            rms accuracy of 3.4 cm (1 sigma) over 1 second averages along 
            JASON-1 ground-tracks for typical sea-state conditions of 2 m SWH 
            and 11 dB sigma-naught. The accuracy on wind speed in IGDR 
            products shall be 1.6 m/s.
      Logical Consistency Report: 
         Instrument calibrations and product quality shall be monitored at least 
         weekly throughout the life of the mission.
      Completeness Report: 
         TBD
      Positional Accuracy: 
         Horizontal Positional Accuracy: 
            Horizontal Positional Accuracy Report: 
               TBD
         Vertical Positional Accuracy: 
            Vertical Positional Accuracy Report: 
               The accuracy on Sea Wave Height in OGDR products shall be 
               respectively 10% or 0.5 m (whichever is greater).
      Lineage: 
         Source Information: 
            Source Citation: 
               Citation Information: 
                  Originator: 
                     TBD
                  Publication Date: 
                     Unknown
                  Title: 
                     Level 1b data from JASON?
            Type of Source Media: 
               satellite data
            Source Time Period of Content: 
               Time Period Information: 
                  Range of Dates/Times: 
                     Beginning Date: 
                        2008
                     Ending Date: 
                        Present
               Source Currentness Reference: 
                  ground condition
            Source Citation Abbreviation: 
               J2_Level1b
            Source Contribution: 
               Satellite data from which the GDRs are derived.
         Process Step: 
            Process Description: 
               Data is processed from Level 1b to Level 2 XGDRs and SSHA.
            Source Used Citation Abbreviation: 
               TBD
            Process Date: 
               Not complete
            Source Produced Citation Abbreviation: 
               gov.noaa.class:J2_XGDR
            Process Contact: 
               Contact Information: 
                  Contact Organization Primary: 
                     Contact Organization: 
                        CNES
                     Contact Person: 
                        Nicolas Picot
                  Contact Position: 
                     OSTM Measurement System Engineer
                  Contact Address: 
                     Address Type: 
                        Mailing
                     Address: 
                        DCT/PO/AL BPI 2002; 18, Av. Edouard Belin
                     City: 
                        Toulouse
                     State or Province: 
                        Cedex 9
                     Postal Code: 
                        31401
                     Country: 
                        FRANCE
                  Contact Voice Telephone: 
                     (011) 33-5-61-28-32-53
                  Contact Facsimile Telephone: 
                     (011) 33-5-61-28-25-95
                  Contact Electronic Mail Address: 
                     nicolas.picot@cnes.fr
   Spatial Data Organization Information: 
      Direct Spatial Reference Method: 
         Raster
   Entity and Attribute Information: 
      Overview Description: 
         Entity and Attribute Overview: 
            List of Datatypes and their contents TBD.
         Entity and Attribute Detail Citation: 
            TBD
   Distribution Information: 
      Distributor: 
         Contact Information: 
            Contact Organization Primary: 
               Contact Organization: 
                  DOC/NOAA/CLASS > Comprehensive Large Array-data Stewardship 
                  System, NOAA, U.S. Department of Commerce
            Contact Address: 
               Address Type: 
                  mailing and physical
               Address: 
                  151 Patton Avenue
               City: 
                  Asheville
               State or Province: 
                  NC
               Postal Code: 
                  28801-5001
            Contact Voice Telephone: 
               (828) 271-4850 x3183
            Contact Facsimile Telephone: 
               (828) 271-4328
            Contact Electronic Mail Address: 
               info@class.noaa.gov
            Hours of Service: 
               9 - 5 EST
      Resource Description: 
         File naming convention: TBD See CLASS Help pages for more information 
         (www.class.noaa.gov).
      Distribution Liability: 
         Disclaimer - While every effort has been made to ensure that these data 
         are accurate and reliable within the limits of the current state of 
         the art, NOAA cannot assume liability for any damages caused by any 
         errors or omissions in the data, nor as a result of the failure of 
         the data to function on a particular system. NOAA makes no warranty, 
         expressed or implied, nor does the fact of distribution constitute 
         such a warranty.
      Standard Order Process: 
         Digital Form: 
            Digital Transfer Information: 
               Format Name: 
                  NetCDF
               Format Information Content: 
                  Off-line datatypes (GDR, S-GDR, GDR-SSHA, IGDR, S-IGDR, 
                  IGDR-SSHA) are pass-based, containing 1 full pass per file.
            Digital Transfer Option: 
               Online Option: 
                  Computer Contact Information: 
                     Network Address: 
                        Network Resource Name: 
                           http://www.class.noaa.gov/
                        CI Online Resource: 
                           Linkage: 
                              http://www.class.noaa.gov/
                           Name: 
                              OSTM/Jason-2: Level-2 Geophysical Data Records
                           Description: 
                              Download options for OSTM/Jason-2: Level-2 
                              Geophysical Data Records archived and 
                              distributed at CLASS.
                           Function: 
                              download
         Digital Form: 
            Digital Transfer Information: 
               Format Name: 
                  BUFR
               Format Information Content: 
                  OGDR only
            Digital Transfer Option: 
               Online Option: 
                  Computer Contact Information: 
                     Network Address: 
                        Network Resource Name: 
                           http://www.class.noaa.gov/
                        CI Online Resource: 
                           Linkage: 
                              http://www.class.noaa.gov/
                           Name: 
                              OSTM/Jason-2: Level-2 Geophysical Data Records
                           Description: 
                              Download options for OSTM/Jason-2: Level-2 
                              Geophysical Data Records archived and 
                              distributed at CLASS.
                           Function: 
                              download
         Fees: 
            Electronic download (FTP) of the data is free. There is a fee for 
            copies of data on physical media. Optical disks are $25.00 per 
            unit and magnetic tape is $100 per unit. Price does not include 
            additional service and handling costs.
         Ordering Instructions: 
            The option to order data for shipping will occur at the order 
            checkout stage, from which you will then proceed to another NOAA 
            site to provide shipping and billing addresses and credit card 
            information. Contact the CLASS Help Desk (info@class.noaa.gov) for 
            instructions for payment by other means.
         Turnaround: 
            Delivery of physical media occurs within 1 to 2 weeks, but may take 
            longer for large orders.
      Available Time Period: 
         Time Period Information: 
            Range of Dates/Times: 
               Beginning Date: 
                  200807
               Ending Date: 
                  Unknown
   Metadata Reference Information: 
      Metadata Date: 
         20080709
      Metadata Review Date: 
         20080225
      Metadata Future Review Date: 
         20080701
      Metadata Contact: 
         Contact Information: 
            Contact Organization Primary: 
               Contact Organization: 
                  DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, 
                  NESDIS, NOAA, U.S. Department of Commerce
               Contact Person: 
                  Anna Milan
            Contact Address: 
               Address Type: 
                  Mailing and Physical Address
               Address: 
                  325 Broadway, Mail Code E/GC4
               City: 
                  Boulder
               State or Province: 
                  CO
               Postal Code: 
                  80305-3328
               Country: 
                  USA
            Contact Voice Telephone: 
               (303) 497-5099
            Contact Facsimile Telephone: 
               (303) 497-6513
            Contact Electronic Mail Address: 
               Anna.Milan@noaa.gov
            Hours of Service: 
               9:00 - 5:00 Mountain
      Metadata Standard Name: 
         Content Standard for Digital Geospatial Metadata: Extensions for Remote 
         Sensing Metadata
      Metadata Standard Version: 
         FGDC-STD-012-2002
      Metadata Extensions: 
         Online Linkage: 
            http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html
         Profile Name: 
            NGDC Extensions to FGDC Metadata
   Platform and Mission Information: 
      Mission Information: 
         Mission Name: 
            OSTM > Ocean Surface Topography Mission
         Mission Description: 
            OSTM is a cooperation between the space agencies CNES and NASA and 
            the operational agencies EUMETSAT and NOAA. The OSTM organisation 
            focuses on the transition towards operational applications. 
            Therefore, the four partners of the OSTM have agreed on a natural 
            cooperation and division of responsibilities. Project management 
            is still in the hands of NASA and CNES, but now with the support 
            of NOAA and EUMETSAT. CNES provides the PROTEUS bus of Jason-2, 
            including the altimeter and the DORIS receiver, while NASA 
            delivers the radiometer, the GPS Receiver, and the Laser 
            Retroreflector Array. NASA procures the launcher and launch 
            services and CNES will be in charge of the overall system 
            integration. EUMETSAT and NOAA provide earth terminals and part of 
            the ground network. In addition, they are responsible for 
            near-real-time product processing, archiving, product 
            dissemination and user support.
      Platform Information: 
         Platform Full Name: 
            JASON-2
         Platform Start Date: 
            Single Date/Time: 
               Calendar Date: 
                  2008
         Platform Sponsor: 
            EUMETSAT > European Meteorological Satellite Organisation
         Platform Sponsor: 
            DOC/NOAA > National Oceanic & Atmospheric Administration
         Platform Sponsor: 
            FR/CNES > Centre National d'Etudes Spatiales, France
         Platform Sponsor: 
            NASA > National Aeronautics and Space Administration
         Platform Description: 
            JASON-2
            * Instruments: Poseidon-3 Altimeter, Advanced Microwave Radiometer 
            (AMR), Doppler orbitography and radiopositioning integrated from 
            space (DORIS), and Global Positioning System Space Receiver (GPSP).
            * Intended launch date: June 2008.
            * Orbit: Altitude: 1336 km, Circular, non-sun-synchronous, 66 degrees 
            inclination, Global data coverage between 66 degrees N and 66 
            degrees S latitude, 10-day repeat of ground track (+/- 1 km 
            accuracy), and coverage of 95% of ice-free oceans every 10 days.
            * Mission Duration: Jason-2 has a designed lifetime of about 5 years.
   Instrument Information: 
      Instrument Full Name: 
         Poseidon-3
      Instrument Description: 
         Instrument Type: 
            radar altimeter
         Collection Type: 
            Fixed nadir-pointing beam
         Other Collector Description: 
            Poseidon-3 emits pulses at two frequencies (13.6 and 5.3 GHz, the 
            second frequency is used to determine electron content in the 
            atmosphere) and analyzes the return signal reflected by the 
            surface. The signal round-trip time is estimated very precisely to 
            calculate the range, after applying corrections. It measures sea 
            level, wave heights and wind speed. It is also able to estimate 
            atmospheric electron content. Poseidon-3 will be coupled with 
            DORIS, in order to improve measurements over coastal areas, inland 
            waters and ice
         Instrument Properties Description: 
            Poseidon-3, or SSALT (for Solid State ALTimeter), uses solid-state 
            amplification techniques. * Emitted Frequency (GHz): 
            Dual-frequency (Ku, C) - 13.575 and 5.3, * Pulse Repetition 
            Frequency (Hz): 2060 interlaced {3Ku-1C-3Ku}, * Pulse duration 
            (microseconds): 105, * Bandwidth (MHz): 320 (Ku and C), * Antenna 
            diameter (m): 1.2, * Antenna beamwidth (degrees): 1.28 (Ku), 3.4 
            (C), * Power (W): 7, * Redundancy: Yes, * Specific features: 
            Solid-State Power Amplifier, Dual-frequency for ionospheric 
            correction, and High resolution in C band (320 MHz).
      Instrument Reference: 
         Citation Information: 
            Originator: 
               CNES
            Publication Date: 
               Unknown
            Title: 
               Reference to CNES document?
   Instrument Information: 
      Instrument Full Name: 
         AMR > Advanced Microwave Radiometer
      Instrument Description: 
         Instrument Type: 
            radiometer
         Collection Type: 
            microwave
         Other Collector Description: 
            AMR acquires measurements via three separate frequency channels to 
            determine the path delay of the altimeter's radar caused by 
            atmospheric water vapor. This instrument measures radiation from 
            Earth's surface at three frequencies (18, 21 and 37 GHz). 
            Measurements acquired at each frequency are combined to determine 
            atmospheric water vapor and liquid water content. Once the water 
            content is known, we can determine the correction to be applied 
            for radar signal path delays.
      Instrument Reference: 
         Citation Information: 
            Originator: 
               CNES
            Publication Date: 
               Unknown
            Title: 
               Reference to CNES document TBD
   Instrument Information: 
      Instrument Full Name: 
         DORIS > Doppler Orbitography and Radiopositioning Integrated by Satellite
      Instrument Description: 
         Instrument Type: 
            positioning/navigation
         Collection Type: 
            radio
         Other Collector Description: 
            DORIS is based on the accurate measurement of the Doppler shift of 
            radiofrequency signals transmitted from ground-based beacons and 
            received onboard the spacecraft when it passes over. Measurements 
            are made at two frequencies: 2.03625 GHz for precise Doppler 
            measurement and 401.25 MHz for ionospheric correction. The 401.25 
            MHz measurement is also used for time tagging and auxiliary data.
      Instrument Reference: 
         Citation Information: 
            Originator: 
               CNES
            Publication Date: 
               Unknown
            Title: 
               Reference to CNES document TBD
   Instrument Information: 
      Instrument Full Name: 
         GPSP > Global Positioning System Payload
      Instrument Description: 
         Instrument Type: 
            positioning/navigation
         Collection Type: 
            receiver
         Other Collector Description: 
            The GPSP receives dual-frequency navigation signals continuously and 
            simultaneously from 16 GPS satellites. It uses these signals to 
            acquire phase measurements accurate to about one millimeter and 
            pseudo-range measurements accurate to about 10 centimeters.
         Instrument Properties Description: 
            The onboard system consists of two independent receivers operating in 
            cold redundancy, each with an omnidirectional antenna, low-noise 
            amplifier, quartz oscillator, sampling converter, and a baseband 
            digital processor communicating via the bus interface.
      Instrument Reference: 
         Citation Information: 
            Originator: 
               NASA
            Publication Date: 
               Unknown
            Title: 
               Reference to NASA document TBD
   Instrument Information: 
      Instrument Full Name: 
         LRA > Laser Retroreflector Array
      Instrument Description: 
         Instrument Type: 
            reflector
         Collection Type: 
            TBD
         Other Collector Description: 
            The LRA is an array of mirrors that provide a target for laser 
            tracking measurements from the ground. By analyzing the round-trip 
            time of the laser beam, we can locate where the satellite is on 
            its orbit. It is a totally passive reflector designed to reflect 
            laser pulses back to their point of origin on Earth. It is used 
            for the calibration of the Precise Orbit Determination system on 
            the spacecraft.
         Instrument Properties Description: 
            The retroflectors are placed on the nadir face of the satellite. The 
            totally passive unit consists of nine quartz corner cubes arrayed 
            as a truncated cone, with one cube in the centre and the others 
            arranged azimuthally around the cone. This arrangement will allow 
            laser ranging at field-of-view angles of 360 degrees in azimuth 
            and 60 degrees elevation around the perpendicular. The 
            retroreflectors are optimised for a wavelength of 532 nanometers 
            (green), offering a field of view of about 100 degrees.
      Instrument Reference: 
         Citation Information: 
            Originator: 
               NASA
            Publication Date: 
               Unknown
            Title: 
               Reference to NASA document TBD

