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Duacs
Altimetry data for sea level studies & applications
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DUACS Products
Copernicus Marine Service products
Copernicus Climate Service products
Ocean Monitoring Indicators
Demonstration and pre-operational products
Products Quality
Different sources of error
Along-track measurements – main sources of errors
Merged product- main sources of errors
Quality report of the NRT production
NRT production timeliness
Key Performance Indicators
L2P upstream products monitoring
L3 products monitoring
L4 products monitoring
System
Acquisition and data selection
L2p Upstream data
Homogenization and cross-calibration
Along-track (L3) products generation
Merged gridded (L4) products generation
Derived products generation & quality control
System version changes
DUACS NRT system impacting version changes
Apr 2022: DUACS 19.1.0 ?
May 2022: DUACS 19.2.0 ?
November 2022 – DUACS-NG 1.0.0 ?
November 2023 – DUACS-NG 2.0.0 ?
July 2024: DUACS-NG 3.0.0 ?
November 2024: DUACS-NG v4.0.0 ?
DUACS MY system impacting version changes
January 2023: DT-2021
May 2024: DT-2021 interim ?
Nov 2024: DUACS DT-2024 ?
History and Context
Mesoscale
Climate
Régional and L4P product
DUACS High Resolution products
Studies & Applications
Elephant seals turn around eddies
Ocean eddies and river plume extension seen from space
Gulf Stream seen by altimetry
Ierapetra gyre from year to year
Twenty-five years of Pacific monitoring by altimetry
References
FAQ
What are the products specification?
How are defined the different heights used in altimetry?
What is the resolution of the L4 gridded products?
What about the mean reference period?
Weekly vs daily products
Sea Level reprocessing – Which version of the product am I currently using ?
What are the differences between the Marine and Climate sea level Products?
What about the Global Mean Sea Level (MSL) Indicator?
What product should I use to compute the Global Mean Sea Level indicator?
Glacial Isostatic Adjustment (GIA)
Are DUACS products corrected for the TOPEX-A instrumental drift?
Should I use the NRT products to extend the MSL record?
What are the CMEMS ‘phy_assim’ Products?
What is the standards used for the different corrections for DT and NRT production ?
SWOT
DUACS High Resolution products
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System
System version changes
DUACS NRT system impacting version changes
May 2022: DUACS 19.2.0 ?
May 2022: DUACS 19.2.0 ?
Jason-3 orbit change