NASA JPL Physical Oceanography Distributed Active Archive Center

nasa-podaac-jason-1_l2_ost_gdr_ver-c_binary

Jason-1 level 2 Altimeter Geophysical Data Record version C binary format

The Jason-1 Geophysical Data Records (GDR) contain full accuracy altimeter data, with a high precision orbit (accuracy ~2.5 cm), provided approximately 35 days after data collection. The instruments on Jason-1 make direct observations of the following quantities: altimeter range, significant wave height, ocean radar backscatter cross-section (a measure of wind speed), ionospheric electron content (derived by a simple formula), tropospheric water content, mean sea surface, and position relative to the GPS satellite constellation. The GDR contain all relevant corrections needed to calculate the Sea Surface Height (SSH) and Anomalies (SSHA). SSH and SSHA calculations and recommended data editing criteria are specified in the Jason-1 I/GDR User Handbook located at ftp://podaac.jpl.nasa.gov/allData/jason1/L2/gdr_c/docs/Handbook_Jason_v4-1.pdf. Version C contain new parameters pseudo datation bias, high frequency fluctuations and mean dynamic topography. The binary GDR is the official and vetted dataset from the Jason-1 project. It is available as 10 day cycles, each containing 254 passes. It is also the most accurate dataset produced by the Jason-1 project.

podaac.jpl.nasa.gov

http://podaac.jpl.nasa.gov/dataset/JASON-1_L2_OST_GDR_Ver-C_Binary

Identified by : JASON-1_L2_OST_GDR_Ver-C_Binary

This dataset was released on January 21, 2011.

The time range for this dataset is January 15, 2002 (06:07 AM) to March 03, 2012 (12:59 PM).

The spatial range for this dataset is -66.15° to 66.15° latitude, and 0° to 360° longitude. map (center)

This dataset uses data from an instance of the poseidon-2 instrument on the jason-1 platform.
This dataset uses data from an instance of the jason-microwave-radiometer instrument on the jason-1 platform.
This dataset uses data from an instance of the laser-retroreflector-array instrument on the jason-1 platform.
This dataset uses data from an instance of the blackjack instrument on the jason-1 platform.
This dataset uses data from an instance of the doris-ng instrument on the jason-1 platform.

Also known as :

• dataset JASON-1_L2_OST_GDR_Ver-C_Binary (podaac lexicon)
• datasetId PODAAC-J1GDR-BIN0C (podaac lexicon)