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| Titel |
Altimeter products for the Sentinel-6/Jason-CS mission |
| VerfasserIn |
Remko Scharroo, Hans Bonekamp, Christelle Ponsard, Carolina Nogueira Loddo |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250112259
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| Publikation (Nr.) |
 EGU/EGU2015-12409.pdf |
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| Zusammenfassung |
| The Sentinel-6 (Jason-CS) mission will be unique in the Jason-series of altimeters. It will be the first of the "reference missions" outfitted with a SAR altimeter. Not only that, it will be the first altimeter that operates in a continuous high-rate pulse mode, such that there is no longer the need to wait 2/3 of the time for pulses to be received, while transmitting only 1/3 of the time, like the altimeters of CryoSat-2 and Sentinel-3. On top of that, Sentinel-6 will be operating in this mode 100% of the time.
This particular operating mode allows simultaneous production of low-resolution mode (LRM) measurements on-board as well as the processing of SAR echoes on-ground. Both types of measurements will be provided in (separate) Sentinel-6 altimeter data products.
The data chain for Jason-CS foresees to have a number of products similar to those of Sentinel-3, while at the same time trying to maintain a good coherency with the Jason-1 and Jason-2 product tree. The aim is to provide near-realtime (NRT) products compatible with those of the previous missions while at the same time providing slow-time-critical (STC) and non-time-critical (NTC) products with all of the variables needed to fully exploit and analyse the SAR mode data.
Similar to the Jason-1/2 products will be produced with three different latencies (3-5 hours, 1-2 days, 60 days) and three levels of complexities (1-Hz data, 1-Hz and 20-Hz data, 1-Hz and 20-Hz data and waveforms). On top of that, Level 1 products will be released containing all the individual echoes in the time domain (L1A) or the measurement data and waveforms without geophysical corrections (L1B). A L1B-S product, with the individual waveforms stacked and geo-located such as is available for Sentinel-3 is under consideration.
This poster will provide an overview of the suggested data products and invites users to give their feedback on the proposed data delivery and data formats. |
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