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Article describing the overlaying of Isobaric charts onto animated satellite weather imagery.

From the Geo Journal - Issue No.17 - for March 2008

with thanks to the GEO Editor - Les Hamilton


Available for download as a PDF file

whilst here following are some additional notes made since copy date.


1) If you have two or more animation files in the same directory, for display in Irfanview, then (if configured for this) it is possible to switch between them using the left/right cursor keys; otherwise, using these will advance or back up the frames.

2) Should you have problems with I-view locking up when set to loop an animation, or failing to update every 15 minutes as scheduled, then one can reset the schedule that opens I-view tojust over the time taken for your animation to run through, e.g., 1 or 2 minutes. The programme should then update and remain looping more reliably.
It may be that high spec. computers and fast networks will not suffer this problem; but if yours does, then the above might be a useful work-around.

3) With XP, the Task Tab window, opened when clicking "Properties" for a given task in the Windows Task Scheduler, shows the check box to enable the schedule, and a further check box immediately above which, when ticked, makes the schedule "Run only when logged on". When enabled, this obviates the requirement for password entry when setting up the task. The schedule will then run without that requirement ( I believe from limited testing).

This check box is NOT available in Windows 2000, but is present with Vista, although the latter O.S.'s scheduler is only available to the administrator's account. Vista's Task Scheduler has been somewhat hidden away and its "front" much altered; it is now to be found under Administrative Tools within the Control Panel.


Finally, as indicated on the MSLP.htm webpage, David Taylor has kindly modified a Beta version of GSS to permit the animation of MPE grib files, making it now possible to make an overlaid animation of that (Multi-sensor Precipitation Estimate) imagery without recourse to saving and renaming the Grib files as Jpeg - as shown on the webpage.

T.S.


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