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    Weather Satellite Blue vs Visible

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    • D
      defiant549 | Premium last edited by

      The weather satellite filters are blue, visible, and infrared. The blue and visible filters are inverted, when you select blue, you get visible, and when you select visible, you get blue.

      idefix37 1 Reply Last reply Reply Quote 0
      • idefix37
        idefix37 Sailor Moderator @defiant549 last edited by idefix37

        @defiant549
        Blue and visible are not inverted, or at least show screenshots.
        Blue was developed by Windy in non-real colors. It is based on the visible spectrum during the day and the infrared at night to give the same type of images independently of day and night. You can easily verify that Blue does not show any part in the world without daylight.
        Visible as it is named shows the quasi direct images from the satellites. You can see that parts of the world which are not lit by the sun are dark. You see also that Visible shows true colors of the land.

        Gkikas LGPZ 1 Reply Last reply Reply Quote 0
        • Gkikas LGPZ
          Gkikas LGPZ Moderator @idefix37 last edited by

          @idefix37 said in Weather Satellite Blue vs Visible:

          that parts of the world which are not lit by the sun are dark.

          Not realy!
          5c6c83f0-2877-4e19-9729-6f352dc0ea14-εικόνα.png
          It is night in America but the clouds are shown.
          So, the visible is not actually "visible" but includes IR info.
          (sorry for my bad english)

          idefix37 1 Reply Last reply Reply Quote 0
          • idefix37
            idefix37 Sailor Moderator @Gkikas LGPZ last edited by idefix37

            @gkikas-lgpz
            OK you are right, but you see clearly a difference between regions lit by the sun or those in shadow (not totally black I agree). This is what I was meaning.
            Blue show a uniform and more artificial view of the earth atmosphere.

            1 Reply Last reply Reply Quote 1
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