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| Tournadre, Jean; Whitmer, K; Ardhuin, Fanny. |
| Small icebergs (edge lengths <1 km) are difficult to detect and track. In a recently published study, it was demonstrated that small targets (ships, islets,...) emerging from the sea can be detected by the analysis of high-rate altimeter waveforms. The analysis of Jason altimeter data revealed that small icebergs also have a detectable signature in the thermal noise part of the altimeter waveforms for open water. These signatures are very similar to that of transponders and are almost deterministic. An automated method based on the detection of parabolic shapes in the thermal part of the waveforms by analysis of the convolution product with a filter has been developed and applied to 1 year of Jason high-rate waveform data. In addition, the minimum... |
| Tipo: Text |
Palavras-chave: Antarctica; Iceberg; Altimeter waveform. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-4530.pdf |
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