Diana User Guide: Satellite and radar images |  Previous: Observations |  Next: Objects  |  Index

Satellite icon Satellite and radar images

Satellite dialogue
  • First select satellite/radar.
  • Then choose file type. When NOAA has been selected geographical areas or classified satellite pictures can be chosen. For Meteosat, the choices are; visual, infrared or water vapour.
  • The time can be selected in three different ways.
    • Auto - the time from the time slider is used.
    • Time - all times where pictures exist are shown and can be selected from.
    • File - filenames are shown and can be selected from.
  • When "Time" or "File" is selected the satellite picture can not be changed with the time slider or the animation-buttons.
  • Channel is selected.
  • Selected pictures show what is actually selected. Mark a picture here if you want to delete it, swap plot-order or change the settings. To add a picture to the list, click "Add picture" below and repeat the steps above.
  • Arrows Up/down arrows swaps the order the pictures are plotted.
  • Delete - button will delete the selected picture.
  • Delete all - deletes all the pictures.
  • Add picture - Adds a picture if any of the above settings are changed. If this is not selected, the selected picture is altered.
  • Mosaic - makes a mosaic of all the satellite pictures available within the time intervall given in "Max time diff" for the marked picture. The satellite closest to the plot time is on the top of the mosaic.
  • Max time diff - maximum time difference between chosen time and actual time. The picture closest in time is always used.
  • Update - times and filenames are reread.
  • More >> /<< Less displays more/less options/settings for the selected picture.
Satellite
	dialogue more For rgb (satellite) pictures, the following options are available when More >> is selected:
  • Cut - how many of the pixels are removed to get a better contrast in the picture.
  • Alpha cut - pixels with lower values than this are not displayed. (This can be used for displaying only clouds).
  • Alpha - transparency of the displayed pixels.
  • Standard resets the settings to default values.
For the palette (radar- and classified satellite) pictures, the following options are available when More >> is selected:
  • Alpha - transparency of the displayed pictures
  • Table which displays classification can be removed.
  • Colour cut this button allows for removing colours from the palette. Clicking it displays a list of the colours used in the picture, select the ones which are to be hidden.
  • Standard resets the settings to default values.

 Diana User Guide: Satellite and radar images |  Previous: Observations  |  Next: Objects  |  Index