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| Shutler, Jamie D.; Quartly, Graham D.; Donlon, Craig J.; Sathyendranath, Shubha; Platt, Trevor; Chapron, Bertrand; Johannessen, Johnny A.; Girard-ardhuin, Fanny; Nightingale, Philip D.; Woolf, David K.; Hoyer, Jacob L.. |
| Physical oceanography is the study of physical conditions, processes and variables within the ocean, including temperature-salinity distributions, mixing of the water column, waves, tides, currents and air-sea interaction processes. Here we provide a critical review of how satellite sensors are being used to study physical oceanography processes at the ocean surface and its borders with the atmosphere and sea ice. The paper begins by describing the main sensor types that are used to observe the oceans (visible, thermal infrared and microwave) and the specific observations that each of these sensor types can provide. We then present a critical review of how these sensors and observations are being used to study: (i) ocean surface currents, (ii) storm... |
| Tipo: Text |
Palavras-chave: Atmosphere-ocean interface; Sea ice; Remote sensing; Surface currents; Storm surge; Surface heat fluxes; Atmosphere-ocean gas fluxes; Oceanography. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00333/44405/44318.pdf |
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| Schlembach, Florian; Passaro, Marcello; Quartly, Graham D.; Kurekin, Andrey; Nencioli, Francesco; Dodet, Guillaume; Piollé, Jean-francois; Ardhuin, Fabrice; Bidlot, Jean; Schwatke, Christian; Seitz, Florian; Cipollini, Paolo; Donlon, Craig. |
| Radar altimeters have been measuring ocean significant wave height for more than three decades, with their data used to record the severity of storms, the mixing of surface waters and the potential threats to offshore structures and low-lying land, and to improve operational wave forecasting. Understanding climate change and long-term planning for enhanced storm and flooding hazards are imposing more stringent requirements on the robustness, precision, and accuracy of the estimates than have hitherto been needed. Taking advantage of novel retracking algorithms, particularly developed for the coastal zone, the present work aims at establishing an objective baseline processing chain for wave height retrieval that can be adapted to all satellite missions. In... |
| Tipo: Text |
Palavras-chave: Satellite altimetry; LRM; Delay-Doppler; Altimetry; SAR altimetry; Significant wave height; Round robin; Assessment; Comparison; Retracking; ESA; Climate change initiative. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00630/74172/73742.pdf |
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| Ardhuin, Fabrice; Stopa, Justin; Chapron, Bertrand; Collard, Fabrice; Husson, Romain; Jensen, Robert E.; Johannessen, Johnny; Mouche, Alexis; Passaro, Marcello; Quartly, Graham D.; Swail, Val; Young, Ian. |
| Sea state information is needed for many applications, ranging from safety at sea and on the coast, for which real time data are essential, to planning and design needs for infrastructure that require long time series. The definition of the wave climate and its possible evolution requires high resolution data, and knowledge on possible drift in the observing system. Sea state is also an important climate variable that enters in air-sea fluxes parameterizations. Finally, sea state patterns can reveal the intensity of storms and associated climate patterns at large scales, and the intensity of currents at small scales. A synthesis of user requirements leads to requests for spatial resolution at kilometer scales, and estimations of trends of a few centimeters... |
| Tipo: Text |
Palavras-chave: Sea state; Waves; Altimeter; SAR; Swell; Remote sensing; Buoy; Microseisms. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00489/60090/63432.pdf |
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