Evaluating the Performance of Jason-2 Open-Loop and Closed-Loop Tracker Modes

Martin-Puig, Cristina; Leuliette, Eric; Lillibridge, John; Roca, Mònica

doi:10.1175/jtech-d-16-0011.1

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Evaluating the Performance of Jason-2 Open-Loop and Closed-Loop Tracker Modes

2016
By Martin-Puig, Cristina ; Leuliette, Eric ; Lillibridge, John ; ...
Source: Journal of Atmospheric and Oceanic Technology, 33(11), 2277-2288

[PDF-3.15 MB]

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Journal Title:

Journal of Atmospheric and Oceanic Technology
Personal Author:

Martin-Puig, Cristina ; Leuliette, Eric ; Lillibridge, John ; Roca, Mònica

Martin-Puig, Cristina ; Leuliette, Eric ; Lillibridge, John ; Roca, Mònica Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research)

NESDIS (National Environmental Satellite, Data, and Information Service) ; STAR (Center for Satellite Applications and Research) Less -
Description:

The Poseidon-3 altimeter on board Jason-2 includes a significant new capability with respect to its predecessors, an open-loop [Détermination Immédiate d’Orbite par Doris Embarqué (DIODE)/digital elevation model (DEM)] tracker mode. This innovative mode is capable of successfully tracking the backscatter signal over rapidly varying terrains, and thus it overcomes one of the limitations of the closed-loop Poseidon-2 tracker on board Jason-1. DIODE/DEM achieves this improvement thanks to a predetermined DEM on board that, when combined with DIODE orbit ephemeris, provides improved acquisition timing and reduced data loss in the coastal zone. As a further enhancement, Jason-3 and the Sentinel-3 programs will be capable of autonomously switching to this innovative mode in selected regions. To help recommend how these missions should utilize DIODE/DEM, the authors studied the impact of the tracker mode on the accuracy and precision of wave heights and wind speed, the continuity of the sea level climate data record, and the coverage in coastal regions.
Keywords:

[+]

Altimetry Microwave Observations Sea Level Waves, Oceanic Wind
Source:

Journal of Atmospheric and Oceanic Technology, 33(11), 2277-2288
DOI:

https://doi.org/10.1175/jtech-d-16-0011.1
Document Type:

Journal Article
Funding:

Grant no. DOCDG133E10CQ0034
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Submitted
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urn:sha256:e82ea00e6da8f613900afbf5e9fcfad7038d388f46f3e6b1a0744ecc6fc84a53
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https://repository.library.noaa.gov/view/noaa/41104/noaa_41104_DS1.pdf
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Evaluating the Performance of Jason-2 Open-Loop and Closed-Loop Tracker Modes

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