Product description

PRODUCT TYPE data INPUT DATA Sensor Data Records OUTPUT TYPE along-track
SATELLITE ERS-1
ERS-2
AGENCIES ESA GRID TYPE
CONTENTS This product provides choes from ocean surface from the ERS radar altimeter along the satellite track. Wind speed modulus, wave height and sea surface elevation can then be retrieved (using precision orbits derived from the onboard laser retro-reflector). The datasets in the product include – over dated and geolocated 7 km wide cells (sensor footprint) – all sensor parameters, range and altitude elements used for geophysical quantities retrievement, all backscatter coefficient, wind speed, significant wave height elements computed, but also the ATSR/RW radiometer data (brightness temperature at 23.8 GHz and 36.5 GHz, water vapour content, liquid water content) used to correct altimeter measurements. Land cells are flagged. This product is available in 2 different versions. The level 1, called OPR1, is an intermediate product processed with the preliminary orbit, The level 2, called OPR2 is the final product processed with the precise orbit.
APPLICATIONS
  • re-tracking
  • hydrology
  • land
  • ice
  • meteorology
  • ocean-atmosphere gas transfers
USER expert
GEOGRAPHICAL SCALE global GEOGRAPHICAL COVERAGE
82.0°
-180.0° 3.1 180.0°
-82.0°
SPATIAL RESOLUTION 7 km REFERENCE SURFACE
TEMPORAL COVERAGE 1991-08-01 – ongoing QUALITY CONTROL
PARAMETERS
  • sea_surface_height_above_reference_ellipsoid, m, CF
  • sea_surface_wave_significant_height, m, CF
UPDATED cyclically BY name : CERSAT
email adress : fpaf@ifremer.fr
web site :http://projets.ifremer.fr/cersat/
MENTION
COPYRIGHT 1995 – ESA

Delivery

Resource Volume Format Distributed by Licence/conditions
HTTP CCSDS name : CERSAT
email adress :orderdesk@ersus.esrinvas.esrin.esa.it
web site :http://projets.ifremer.fr/cersat/
OPR data subsetting and dowload according to temporal and/or geographical criteria can be performed through the download form. This form is restricted to ESA-approved users (login and password must be requested to ESA) : fill in the form – without forgetting your email – and submit. You will receive a request notification by e-mail.
630 MB CD-ROM name : CERSAT
email adress :orderdesk@ersus.esrinvas.esrin.esa.it
web site :http://projets.ifremer.fr/cersat/
access to the data is restricted to ESA-approved users; authorization must be requested to ESA Order Desk.
5 GB Exabyte name : CERSAT
email adress :orderdesk@ersus.esrinvas.esrin.esa.it
web site :http://projets.ifremer.fr/cersat/
access to the data is restricted to ESA-approved users; authorization must be requested to ESA Order Desk.

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Last update: 2006-10-19