New datasets for ODES (Online Data Extraction Service)

Emilie BRONNER (CNES, France)

CoAuthors

Frédéric BRIOL (CLS, FRANCE); Gérald Dibarboure (CLS, FRANCE); Thierry GUINLE (CNES, FRANCE); Guillaume VALLADEAU (CLS, FRANCE); Clara NICOLAS (CNES, FRANCE); Fernando Niño (LEGOS/CTOH, FRANCE); Vinca ROSMORDUC (CLS, FRANCE); Florence Birol (LEGOS/CTOH, FRANCE)

Event: 2014 Ocean Surface Topography Science Team Meeting

Session: Outreach, Education and Altimetric Data Services

Presentation type: Type Oral

Altimetry users have a wide variety of needs ranging from research to operational applications. Standards datasets provide a robust base to meet most of them but research-grade algorithms and corrections are not easily accessible to the general audience. Similarly, classical distribution channels make it difficult to provide ad-hoc datasets in a convenient way especially when product size and bandwidth are a concern.

To address such evolving user needs, AVISO+ proposes a new dissemination service, the Online Data Extraction Service (ODES), in order to provide users and applications with a wider range of altimetry-derived data (including high-resolution and experimental data).

The platform is designed to distribute both operational products from CNES and partner Agencies (Eumetsat, ESA, NOAA, NASA) but also research-grade data from LEGOS/CTOH and CLS and other contributions from the OSTST research community. Accessible products include GDR-class level 2 data, PISTACH coastal and hydrology demonstrators and X-TRACK level 3 data. Various research-grade parameters (e.g. alternative geophysical corrections...) from the OSTST PI community are also available. New datasets will be regularly proposed to users. In 2014, new expected datasets are: AltiKa experimental expert products (from PEACHI processor), Cryosat SAR experimental products, HY-2 experimental products, CorSSH, SARAL Enhanced GDR, reprocessed X-TRACK data for TP-J1-J2, J1 reprocessed data in GDR-E standard, new CNES-CLS MSS&MDT, etc.

Most importantly, the ODES system provides flexible interfaces and an ad-hoc response. To illustrate, ODES users can use a user-friendly web interface to download along-track altimetry data only over their area of interest, choose their period of interest, limit the parameters and variables they wish to download (e.g. select only significant wave height-related variables) and apply threshold criteria. Most features aim at streamlining the data acquisition in an intuitive way.

The extraction service is also "on-the-fly", with no delay nor cache necessary, so that users can immediately begin their downloading. Lastly the ordering and downloading process can be automated and scripted for operational users with a custom and ad-hoc environment containing only the products they want.

Thanks to this framework, AVISO+ will now be able to include up-to-date corrections and information (e.g. updated tide model, results from a new or alternative algorithm to compute significant wave height, etc. ) to streamline the reprocessing strategy and provide intermediate releases phased with the research advancement of OSTST members and other users.

ODES is available at the following address: http://odes.altimetry.cnes.fr.
 

Oral presentation show times:

RoomStart DateEnd Date
Red salon Tue, Oct 28 2014,16:15 Tue, Oct 28 2014,16:30
Emilie BRONNER
CNES
France
emilie.bronner@cnes.fr