Satellite images in DAWS

Carl Sidor · Post by **Carl Sidor** » Tue Mar 15, 2005 2:18 am

Greetings:
Does anyone have any experience in using GeoSatSignal images in DAWS? I have the GeoSatSignal program up and running (nice work by the way) and I have heard about the .dmf files available from Meteo Maarssen. Unfortunately, when Tom Lindemann graciously tried to e-mail them to me, Hotmail insisted that they were a virus and refused to send them on. Also, I am at a loss as to exactly how to go about it. Any help would be greatly appreciated. Thanks in advance.

Cordially,
Carl Sidor

Carl Sidor · Post by **Carl Sidor** » Fri Mar 18, 2005 1:13 am

An additional note:
I have gotten satellite images to display correctly in DAWS without using GeoSatSignal, by downloading the 1200x896 pixel images from UCAR. However, all the analysis functions work fine except for the vorticity analysis (both absolute and relative), and the divergence function. When I try them, I get an error message that states "Digital Atmosphere has encountered a floating point error. Division by zero" Does anyone have a similar experience? Is this error a function of the large image size? This might be possible, for when I use a smaller map size, the error does not occur. Any ideas would be appreciated.

Carl Sidor

britbob · Post by **britbob** » Fri Mar 18, 2005 3:11 pm

I`m watching this with interest, as I thought the only way to go was through geosatsignal.

Might have a play around later

Carl Sidor · Post by **Carl Sidor** » Sat Mar 19, 2005 12:44 am

Britbob:

I don't know what others have tried, but I got them to display by setting the United States map for "Satellite" in DAWS generate map function. Then I set image size for 1200x896 pixels. I let it draw a map, then used import map command to import the saved satellite image from My Pictures. I used the 500mb station plots to help determine how close the image was to being the correct latitude and longitude. That is, find a station located near an identifiable landmark, then keep trying different lat-long settings until it lines up to your satisfaction. I used Gaylord, MI (KAPX). I got the settings quite close in my opinion. When the map is correct, save it as usual. As long as you use the same source for images, it should work just fine. I used the RAP-UCAR current images continental US from http://www.rap.ucar.edu/weather/satellite. Let me know what you think.

Cordially,
Carl Sidor

skyspotter24347 · Post by **skyspotter24347** » Tue Oct 17, 2006 1:37 am

Carl Sidor wrote:Britbob:

I don't know what others have tried, but I got them to display by setting the United States map for "Satellite" in DAWS generate map function. Then I set image size for 1200x896 pixels. I let it draw a map, then used import map command to import the saved satellite image from My Pictures. I used the 500mb station plots to help determine how close the image was to being the correct latitude and longitude. That is, find a station located near an identifiable landmark, then keep trying different lat-long settings until it lines up to your satisfaction. I used Gaylord, MI (KAPX). I got the settings quite close in my opinion. When the map is correct, save it as usual. As long as you use the same source for images, it should work just fine. I used the RAP-UCAR current images continental US from http://www.rap.ucar.edu/weather/satellite. Let me know what you think.

Cordially,
Carl Sidor

Exactly what are your setting for these maps. I cannot get my generated map to line up with the maps from UCAR...yes, one point will line up, but other points across the country will be 500 miles out in the ocean. How did you(all) fix that?

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