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Sensor Geophysical products

Contents : 20 Hz (40 Hz for Saral) along-track waveform information, corrections to apply.

Use: expert use; coastal, ice studies or anything requesting a different retracking function than the one used for ocean

Description : Mono altimeter product

Geographic coverage Global

Copyright : 2002-ongoing Cnes and Nasa for OSDR data, 2002-ongoing Esa for Envisat data, 2013-ongoing Cnes for SIGDR Saral data

Documentation :

SARAL/Altika user guide, GDR-F version
SALP-MU-P-OP-17273-CN, edition 1.4, Sept. 2020
SARAL/AltiKa Products handbook GDR-F version (pdf, 5 MB)
SALP-MU-M-OP-15984-CN, edition 3.1, Jan. 2021
Jason-3 Product handbook,
SALP-MU-M-OP-16118-CN, edition 2.1, June. 2021
since January 2020: new GDR-F version Saral user product document and improvements
OSTM/Jason-2 Products handbook (pdf, 2 MB)
SALP-MU-M-OP-15815-CN, edition 1.11, Jan. 2017
Jason-1 Products Handbook (pdf, 9 MB)
SMM-MU-M5-OP-13184-CN, edition 5.1, April 2016
Aviso User Handbook: Merged Topex/Poseidon Products (pdf, 900 KB)
AVI-NT-02-101-CN, edition 3.0, July 1996
Aviso CD ROM User Manual: Merged Topex/Poseidon Products
AVI-NT-02-100-CN, edition 3.0, July 1995. Note that this manual is no longer distributed, due to lack of use (it was mainly intended to explain how to use a CD Rom drive from a Unix station). All the information needed to use GDR-M T/P data is in the above manual (AVI-NT-02-101-CN).

to get access Aviso products

Dissemination:
We inform all the users that the ftp dissemination of the Geophysical Data Records (S/I/GDRs for Jason-1, Jason-2, Jason-3, Saral and OGDRs for Saral) products has been transferred to the authenticated AVISO+ ftp portal (ftp://ftp-access.aviso.altimetry.fr/) where the whole historical data has been moved too.

Note that
-the deliveries on the AVISO+ Cnes Data Center remain unchanged.
-the Online Data Extraction Service (ODES) is not available any more

AVISO+ registration:

For the FTP service:
-If you are not registered, we invite you to fill the form on the AVISO+ web portal to get your credentials as soon as possible. You can consult our FAQ for any information about the registration.
-If you are already registered but you haven't these products in your list, we invite you to ask for a new product: you can consult our FAQ for any information.

For the AVISO+ Cnes Data Center
-Please register on top/right of AVISO+ Cnes Data Center

SGDR (Delayed Time): Sensor Geophysical Data Record

Satellite	Distribution media	Frequency	Delivery delay	Data period	Data delivery	File weight
Jason-3	FTP, please refer to your dedicated MY AVISO+	60 days	60 days	Feb 2016-ongoing	one pass per file (zipped)	18 MB
Saral				Mar 2013-ongoing		19 MB
Jason-2				Jul 2008-ongoing		15 MB
Jason-1		-	-	Jan 2002-Jun 2013		13 MB
Envisat	Please contact EOHelp (ESA)	-	-	-		-
T/P	on request via catalogue	-	-	Poseidon cycles		-

See also Sensor Geophysical products available on the catalogue (through menu DATA)

SIGDR (Near-real-time): Sensor Interim Geophysical Data Record

Satellite	Distribution media	Frequency	Delivery delay	Data period	Data delivery	File weight
Jason-3	FTP, please refer to your dedicated MY AVISO+	every day	2 days	last 3 months online	one pass per file (zipped)	18 MB
Saral						19 MB
Jason-2						15 MB

See also Sensor Geophysical products available on the catalogue (through menu DATA)

Data

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