2018 Images of the Month
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Dec 2018: Retrieving hidden water contribution to river from space
The minimum flow a river can have can be estimated using the overall discharge. This is one of Swot outputs for rivers, so we should be able to monitor this continuously at global and basin-scale using Swot-derived data.
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Nov. 2018: Simulating the North Atlantic ocean turbulence at one kilometer-scale
To achieve a better understanding of submesoscale turbulence contribution in global ocean circulation, simulation at a kilometer-scale are developed and run, in part in preparation for Swot.
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Oct. 2018: A new satellite to measure winds and waves
CFOSAT launch is planned on Oct. 29, 2018. Some ideas of what this brand-new satellite concept will enable.
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Sep. 2018: A buoy trapped in filaments
Sometimes drifting buoys stay around the same point. FSLE can help interpret this.
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Aug. 2018: Waves steepen in accelerating currents
Altimetry showns an increased steepness of waves interacting with currents accelerating abruptly over a small distance. High quality observations of waves and surface currents from modern altimeters and SAR, CFOSAT, SWOT and SKIM missions will help in modelling this.
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Jul. 2018: Adopting a Swot crossover for biophysical studies
Swot will be a major asset to study the socean fine scales, especially relevant for marine biology. Swot crossovers will be used for in situ campaigns.
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Jun. 2018: As the flood flows
Satellite observations of floods may be used in early flood warning systems. SWOT is not planned as an operational mission, but a 2-day or 3-day data product could be useful in those cases.
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May 2018: Eddies' birth and decay around Antarctica
25 year long time series of eddy detection is now available and enable to better understand the general dynamics and average behavior of ocean features
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Apr. 2018: Sea ice leads by two sentinels
The fractures in sea ice (or "leads") are important for the estimate of ice thickness from remote sensing. Detecting them can be done using either SAR (Sentinel-1) or altimetry (onboard Sentinel-3A and soon B, Saral, Cryosat...).
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Mar. 2018: Flash flood at the river Têt mouth
SWOT will provide with high resolution coastal and inland measurements over rivers. They will help in modelling dramatic events such as flash flood and their impacts
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Feb. 2018: Mean Sea Level in New-Caledonia seen by tide gauges, altimetry and Doris
Historical sea level records from tide gauges in New-Caledonia (South Pacific) combined to altimetry data shows irregular evolutions of the sea level over different periods.
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Jan. 2018: Antarctic megadunes seen in a Digital Elevation Model from altimetry
Space techniques, including altimetry, enable to map Antarctica and its topography. With the new, more precise, instruments small details are now visible in the data.