@idefix37 Great ! Thanks
Latest posts made by Typhoon 3
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RE: Waves and ocean circulation
@idefix37 Thanks for your message. I'm wondering which satellite data based method is used to compute speed and direction of major currents. Is it by inSAR ? I guess it works by taking two images in rapid succession at the same sensor, and then calculating a direction and magnitude vector by first calibrating for the change in relative motion between the position of the sensor and the earth’s rotation to sense sea surface velocity by analysis of phase differences between images proportional to Doppler shifts of the backscattered microwave signal. Do you happen to know which method they use ? It is this method which I find fascinating, however there are others which are of course useful as well.
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RE: Waves and ocean circulation
The currents seem to be connected to a forecast model as well
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Waves and ocean circulation
Hi All,
have just found this project; am very impressed. I am a college student, and am thinking about mapping changes in ocean circulation patterns throughout the past few decades, looking to link to changes in climate; melting sea ice - changes in salinity and speed of gyres, rising temperatures, via satellite-based remote sensing techniques.
There exist some remote sensing methods for application to sensing of ocean dynamics, one that I think is interesting is a technique using along-track interferometric Synthetic Aperture radar SAR (InSAR), which works by taking two images of a scene in rapid succession with a time lag of milliseconds, calibrating for the change in relative motion between the position of the sensor and the earth’s rotation to sense sea surface velocity by analysis of phase differences between images proportional to Doppler shifts of the backscattered microwave signal. Otherwise altimetry, the sensing of sea surface height is also used to calculate geostrophic winds and strength of current.
I was wondering which method is implemented here in the wave animation and forecasting, also the wind. Is it remotely sensed, or interpolated from available sensors, or a different method ?
Best,
David