New datasets for ODES (Online Data Extraction Service)

Vinca Rosmorduc (CLS, France)

CoAuthors

Florence Birol (CTOH/Legos, France); Frédéric Briol (CLS, France); Emilie Bronner (CNES, France); Gérald Dibarboure (CLS, France); Thierry Guinle (CNES, France); Clara Nicolas (CNES, France); Fernando Niño (CTOH/Legos, France); Guillaume Valladeau (CLS, France)

Event: 2015 Ocean Surface Topography Science Team Meeting

Session: Outreach, Education and Altimetric Data Services

Presentation type: Type Poster

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+ is proposing 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 interface 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 and an "enhanced" version of those with up-to-date corrections and processings, CorSSH, PEACHI and PISTACH 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.

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+ is 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.

New functionalities (drifting orbit capabilities, easier-to-use parameter extraction...) and new datasets (Cryosat LRM and pseudo-LRM mode, Jason-1 and Envisat drifting orbit, "enhanced" GDR for the Saral mission, reprocessing of X-Track coastal SLAs...) should be added to the tool and available from the OSTST meeting time in 2015.

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

Poster show times:

RoomStart DateEnd Date
Grand Ballroom Foyer Thu, Oct 22 2015,11:00 Thu, Oct 22 2015,18:00
Vinca Rosmorduc
CLS
France
vrosmorduc@cls.fr