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OSTM/Jason-2 Ancillary Files

Entry ID: gov.noaa.class.J2-ANC

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Summary

Abstract: ABSTRACT: This collection of data contains OSTM/Jason-2 Ancillary data files. OSTM/JASON-2 is a follow-on mission continuing the TOPEX/Poseidon and Jason-1, and is designed to ensure continuity of high quality measurements for ocean science and to provide operational products for assimilation and forecasting applications. The Jason-2 satellite was launched on 20 June 2008 and reached its nominal ... repetitive orbit on 4 July 2008. These data are archived at the National Oceanographic Data Center (NODC) as accession 0044982 (http://www.nodc.noaa.gov/cgi-bin/search/prod/accessionsView.pl/deta...) and distributed through the NOAA/NESDIS Comprehensive Large Array-data Stewardship System (CLASS, http://www.class.noaa.gov).

SUPPLEMENTAL INFORMATION: The available datatypes are: 1) XDF_ORBIT_REV_FILE; 2) XDF_PPF_MOE; 3) XDF_PPF _POE; 4) XDF_DORIS_USO_DRIFT; 5) XDF_AMR_BT_AVG_COEF; 6) XDF_AMR_MAIN_BEAM_BT_COEF; 7) XDF_CHAR_P3; 8) XDF_LTM

CURRENTNESS REFERENCE: ground condition

SPATIAL DATA ORGANIZATION INFORMATION
Indirect Spatial Reference: Jason-2's orbit is identical to that of Jason-1 (and that of Topex/Poseidon previously). It is optimized to study large-scale ocean variability and to provide coverage of 90% of the world's oceans over a ten-day cycle. Jason-2's high altitude (1,336 kilometres) reduces interactions with the Earth's atmosphere and gravity field to a minimum, thus making orbit determination easier and more precise. The orbit inclination of 66 degrees North and South enables the satellite to cover most of the globe's unfrozen oceans. The orbit's repeat cycle is just under 10 days (9.9156 days to be precise, i.e., 10 days minus two hours) - in other words, the satellite passes over the same point on the Earth's surface (to within one kilometre) every ten days. This cycle is a trade-off between spatial and temporal resolution designed for the study of large-scale ocean variability. The fact that the orbit is prograde and not sun-synchronous also avoids aliasing of different tidal components at the same frequency. The orbit is also designed to pass over two dedicated ground calibration sites: Cap Senetosa in Corsica and the Harvest oil rig platform in California, USA.
Direct Spatial Reference: Point
SDTS Point and Vector Object Type: Point

NATIVE: Static tabular data files and dynamic files which change/grow over time. Ancillary files are mission specific files used in the production of Level-2 products.

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.

Purpose: PURPOSE: Ancillary data files used to generate Level-2 products. Includes both static tabular data files and dynamic files which change/grow over time. Ancillary files are mission specific files used in the production of Level-2 products.

Related URL

Link: GET DATA

Description: The Comprehensive Large Array-data Stewardship System (CLASS) is an electronic library of NOAA environmental data. The web site provides capabilities for finding and obtaining those data.

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 66.0

S: -66.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: FR/CNES > Centre National d'Etudes Spatiales, France

Dataset Title: OSTM/Jason-2 Ancillary Files

Dataset Release Date: 2008-12-15

Dataset Release Place: World Wide Web

Dataset Publisher: CNES (Centre National d'Etudes Spatiales)

Data Presentation Form: static tabular data files and dynamic files

Other Citation Details: JPL provides files XDF_AMR_LEVEL1_COEFF and XDF_AMR_ANTENNA_TEMP_COEFF; all other ancillary files by CNES.

Online Resource: ftp://avisoftp.cnes.fr/AVISO/pub/jason-2/

Temporal Coverage

Start Date: 2008-06-20

Location Keywords

GEOGRAPHIC REGION > GLOBAL OCEAN

Science Keywords

OCEANS > COASTAL PROCESSES > SEA SURFACE HEIGHT

OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

ELEVATION

OCEANS

Platform

OSTM/JASON-2

Instrument

DORIS > Doppler Orbitography and Radiopositioning Integrated by Satellite

POSEIDON-3 > JASON-2 RADAR ALTIMETER

AMR > Advanced Microwave Radiometer

Project

ESIP > Earth Science Information Partners Program

Quality ATTRIBUTE ACCURACY REPORT: Please see the Jason-2 User Handbook online at http://www.class.ncdc.noaa.gov/release/data_available/jason/userhan...

LOGICAL CONSISTENCY REPORT: For each file sent, the Archive performs file validation of the following: file name, file size, and file checksum. CLASS currently performs file name validation. CLASS performs checksum ...

Access Constraints ACCESS CONSTRAINTS: None

DISTRIBUTION LIABILITY: While NESDIS makes every effort to ensure that its databases are error-free, errors do occur. We ask that you notify us immediately of any errors that you discover in our data. We will make every effort to correct them. With respect to documents available from this server, neither the United States Government nor any of its ...

Use Constraints None

Ancillary Keywords

orbit

ephemeris

Data Set Progress

IN WORK

Data Center

Comprehensive Large Array-data Stewardship System, NOAA, U.S. Department of Commerce

Data Center URL: http://www.class.noaa.gov/
Dataset ID: OSTM/Jason-2 Ancillary data

Data Center Personnel
Name: NOAA'S CLASS HELP DESK Email: info at class.noaa.gov Contact Address: 151 Patton Avenue City: Asheville Province or State: NC Postal Code: 28801-5001 Country: USA

Distribution

Distribution Size: 1260

Distribution Format: ASCII

Fees: FTP is free. Optical disks = $25.00, magnetic tape = $100 + service and handling

Personnel

YONGSHENG ZHANG

Role: TECHNICAL CONTACT

Role: DIF AUTHOR

Phone: 301-713-3272 x126

Fax: 301-713-3302

Email: yongsheng.zhang at noaa.gov

Contact Address:

NOAA National Oceanographic Data Center

E/OC1 SSMC3, 4th floor, Room 4701

1315 East-West Highway

City: Silver Spring

Province or State: MD

Postal Code: 20910

Country: USA

SHERI PHILLIPS

Role: DIF AUTHOR

Phone: 301-713-3280 x127

Fax: 301-713-3302

Email: sheri.phillips at noaa.gov

Contact Address:

1315 East-West Highway, E/OC1, SSMC3, 4th Floor

City: Silver Spring

Province or State: MD

Postal Code: 20910

Country: U.S.A.

Creation and Review Dates

DIF Creation Date: 2010-01-07

Last DIF Revision Date: 2011-11-06

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