13 October 2008 COASTALT: improving radar altimetry products in the oceanic coastal area
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Fifteen years of global altimetry data over the coastal ocean lie, largely unexploited, in the data archives, simply because intrinsic difficulties in the corrections and issues of land contamination in the footprint. These data would be invaluable for studies of coastal circulation, sea level change and impact on the coastline. Amongst some initiatives, we describe here the COASTALT Project, funded by ESA. The main objective of the COASTALT Project is to contribute towards making the status of pulse-limited coastal altimetry operational. In this paper we will first illustrate the first project phase, based on the assessment of user requirements, and summarize those requirements. Then we will describe the COASTALT methodology and objectives. Finally, we will illustrate and discuss the various options for coastal waveform retracking, and present a plan for the validation of the retracked data. The first results in the radar altimeter waveform analysis show the complexity of the coastal signals due to land contamination and calm/rough waters.
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Jesús Gómez-Enri, Jesús Gómez-Enri, Paolo Cipollini, Paolo Cipollini, Christine Gommenginger, Christine Gommenginger, Cristina Martin-Puig, Cristina Martin-Puig, Stefano Vignudelli, Stefano Vignudelli, Phil Woodworth, Phil Woodworth, Jérôme Benveniste, Jérôme Benveniste, Pilar Villares, Pilar Villares, } "COASTALT: improving radar altimetry products in the oceanic coastal area", Proc. SPIE 7105, Remote Sensing of the Ocean, Sea Ice, and Large Water Regions 2008, 71050J (13 October 2008); doi: 10.1117/12.802456; https://doi.org/10.1117/12.802456

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