JASON-1_SSHA_3

PODAAC-J1SHA-BIN00

Version 3
  • Abstract
    The Jason-1 Sea Surface Height Anomaly product is generated from the Jason-1 Geophysical Data Record (J1 GDR). There are 127 orbits per cycle and each orbit has a period of 112 minutes. The ground track of the orbits are about 315 km apart at the equator. Along track measurements are approximately 1 sec and 6 km apart. Each orbit is composed of 2 passes, one ascending from -66 deg to +66 deg latitude and the other descending from +66 deg to - 66 deg. The passes are organized this way to avoid data boundaries in the middle of the oceans. All odd-numbered passes are ascending and all even-numbered passes are descending. It is organized as 10 day repeat cycles containing a maximum of 254 pass files per cycle, the same as the J1 GDR. There is a one to one correspondence between the SSHA and J1 GDR cycles and pass files. Each pass file of the SSHA consists of header records followed by data records containing 11 parameters: time of record in days and milliseconds, latitude, longitude, sea surface height anomaly, significant wave height, inverse barometer, sigma0, total electron content of the atmosphere, ocean depth, and mean sea surface. It is swath data and no images are provided with this product. The Sea Surface Height Anomaly, the principal parameter in this product, represents the difference between the best estimate of the sea surface height and a mean sea surface. The sea surface height used was corrected for atmospheric effects (ionosphere, wet and dry troposphere), effects due to surface conditions (electromagnetic bias), and other contributions (ocean tides, pole tide, and inverse barometer). Because some users may want to provide their own values for the mean sea surface and inverse barometer effect, the values used in calculating this SSHA are included in the data product.

Data Identification Fields:

Toggle Data Identification Fields
    Data Dates
    Creation
    Last Revision
    Processing Level

    2

    Quality
    Collection Progress

    Not Provided

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • OCEANS
    • OCEAN WAVES
    • SIGNIFICANT WAVE HEIGHT
    • NONE
    • EARTH SCIENCE
    • OCEANS
    • SEA SURFACE TOPOGRAPHY
    • SEA SURFACE HEIGHT
    • NONE

Acquisition Information Fields:

Toggle Acquisition Information Fields
Platforms
  • spacecraft
    JASON-1
    Instruments
    • POSEIDON-2

Temporal Information Fields:

Toggle Temporal Information Fields

Spatial Information Fields:

Toggle Spatial Information Fields
    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN CARTESIAN
Location Keywords
    • GEOGRAPHIC REGION
    • GLOBAL

Data Centers

Toggle Data Centers
  • NASA/JPL/PODAAC
    PROCESSOR

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

  • PO.DAAC
    ARCHIVER

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

  • Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N
    ARCHIVER
    Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA

    This data center does not have any addresses listed.

Data Contacts

Toggle Data Contacts
  • Jessica
    Technical Contact
    Jessica Hausman

    Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, N

    This contact does not have any addresses listed.

    This contact does not have any contact mechanisms listed.

Collection Citations Fields:

Toggle Collection Citations Fields