July 6 to July 10, 2015 at Telecom Bretagne : General information about the Summer School

Exploring synergies amongst Ocean Remote Sensing datasets (here Ocean Surface roughness and Sea Surface Temperature)

how to :

to select a particular product you can click on it on the map or in the timeline and you can play on its transparency with the keyword ( Shift + P and M keys)

  1. MERIS/MODIS MSS on gulf stream
    • select MSS MERIS products only (unselect MSS MODIS and SST MODIS)
    • zoom to find an oil spill at location around Lon -79.1 / Lat 31.0
    • add MSS MODIS products and play with transparency to see the oil spill on MERIS and MODIS.
    • Press Shift+T then click on « transect »
    • Draw a line between two consecutive obervations of the same oil spill holding the Ctrl key to measure the distance.
    • Find the sensing time difference between measurements in the short timeline.
    • Estimate the surface current velocity in the Gulf Stream
    • Alternatively you can click on the « extract » button, draw a bounding box while holding the Ctrl key and then click on the star over the zoom control to download all layers within the bounding box and analyse them in
    • external image processing software.
  2. MODIS Terra and Aqua MSS on gulf stream
    • click on the map to select the first layer
    • play with P and M keys to switch from MODIS Terra to MODIS Aqua
    • identify small eddy near Lon -78.6 Lat 31.3 (it is colder so you can look MODIS SST to help identify it
    • Press Shift+T then click on « Numpy »
    • Draw a line between two consecutive obervations of the same oil spill holding the Shift key to drow a extraction box. Then click on the wheel on the right to get the link to numpy file.
    • estimate distance between eddy position on Terra and Aqua using ipython notebook corr.ipynb
    • estimate eddy transport velocity using sensing time difference from the timeline
  3. SAR roughness and MODIS SST
    • locate front visible both in SAR roughness and STT gradients by playing with transparency
    • estimate distance between front on SAR and SST
    • Estimate surface current using the sensing time difference from the timeline.
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