Hourly pressure change.
Hourly pressure change.
Good day.
I am trying to get a chart that shows the pressure change between two consecutive hours with positive numbers blue and negative numbers in red and max and min points. The desired end result would be a chart that shows just the pressure change. But the slpr for the current hour is drawn also. How do I get the script to plot just the pressure change.
The following is the script I have come up with.
download,http://weather.cod.edu/digatmos/sao/@Y@ ... c:\Program files\DigitalAtmosphereWS\data\temp.dat
ingest,c:\Program files\DigitalAtmosphereWS\data\temp.dat
analyze,stor=1 cont slpr hsfc
erase
download,http://weather.cod.edu/digatmos/sao/@Y@ ... c:\Program files\DigitalAtmosphereWS\data\temp.dat
ingest,c:\Program files\DigitalAtmosphereWS\data\temp.dat
analyze,stor=2 cont slpr hsfc
erase
analyze,mxmn cont cint=4 line=2 color=0:0:180 grtn=0 cont cint=4 line=2 color=200:0:0 lstn=0 sdif=1:2
Thank you
I am trying to get a chart that shows the pressure change between two consecutive hours with positive numbers blue and negative numbers in red and max and min points. The desired end result would be a chart that shows just the pressure change. But the slpr for the current hour is drawn also. How do I get the script to plot just the pressure change.
The following is the script I have come up with.
download,http://weather.cod.edu/digatmos/sao/@Y@ ... c:\Program files\DigitalAtmosphereWS\data\temp.dat
ingest,c:\Program files\DigitalAtmosphereWS\data\temp.dat
analyze,stor=1 cont slpr hsfc
erase
download,http://weather.cod.edu/digatmos/sao/@Y@ ... c:\Program files\DigitalAtmosphereWS\data\temp.dat
ingest,c:\Program files\DigitalAtmosphereWS\data\temp.dat
analyze,stor=2 cont slpr hsfc
erase
analyze,mxmn cont cint=4 line=2 color=0:0:180 grtn=0 cont cint=4 line=2 color=200:0:0 lstn=0 sdif=1:2
Thank you
Hello
Very nice script. The $H is new for me. I could not find it in the manual (but it's rather early here).
When I run the script I get 1 long line and 2 short + some X and N. I don't see the SLPR. Only when I add a space after the second erase I see a lot of lines. Is this what you mean? Can you place a map on the forum or send it to me? Then I know exactly what you have.
Greetings
Fred
Very nice script. The $H is new for me. I could not find it in the manual (but it's rather early here).
When I run the script I get 1 long line and 2 short + some X and N. I don't see the SLPR. Only when I add a space after the second erase I see a lot of lines. Is this what you mean? Can you place a map on the forum or send it to me? Then I know exactly what you have.
Greetings
Fred
The $h is for the last hours data.
Bob, I think this script makes it possible to plot pressure changes between two consecutive hours. As of yet, I have not verified the results but am just testing it. Any feed back is welcome.
I would like to post the results but am not able to get them to show up here.
Thanks
Bob, I think this script makes it possible to plot pressure changes between two consecutive hours. As of yet, I have not verified the results but am just testing it. Any feed back is welcome.
I would like to post the results but am not able to get them to show up here.
Thanks
Tim
Trying to modify the above script I faced again the problem of the negative values.
Using the command "..... equa=-2 sdif=1:2" does not give a result. I tried the command in a lot of different ways but nothing works. To be sure, is it a bug in the program or do I make mistakes in the syntax?
Although adding a value to it and ask for the positive value works sometimes it often causes other problems and makes the script very complex. I (and many others) hope that -if it is a bug- it can be solved in the next release.
Greetings
Fred
Trying to modify the above script I faced again the problem of the negative values.
Using the command "..... equa=-2 sdif=1:2" does not give a result. I tried the command in a lot of different ways but nothing works. To be sure, is it a bug in the program or do I make mistakes in the syntax?
Although adding a value to it and ask for the positive value works sometimes it often causes other problems and makes the script very complex. I (and many others) hope that -if it is a bug- it can be solved in the next release.
Greetings
Fred
Tim, thanks for the help.
I have been looking at the results and overall it looks promising. The positive side looks the best and I agree that the negative side looks suspect. I would be intrested in seeing your modifications to the script to see how you did it.
I did have a space after the second erase.
Thanks again.
I have been looking at the results and overall it looks promising. The positive side looks the best and I agree that the negative side looks suspect. I would be intrested in seeing your modifications to the script to see how you did it.
I did have a space after the second erase.
Thanks again.
Hello
I continued testing my script and I found some more strange things.
For a value 2 the command GRTN=1 gives the requested colour, while EQUA=2 gives a white fill: nothing happens!
Or the EQUA command does not work or asking =2 is perhaps not correct. This also because of the second problem. If I ask LSTN=0 I expect everything starting with -1. I also get 0. Looking to the N I can see a "-0" displayed in it. But as I stated in my previous post, asking for - does not work.
What now??
Greetings
Fred
I continued testing my script and I found some more strange things.
For a value 2 the command GRTN=1 gives the requested colour, while EQUA=2 gives a white fill: nothing happens!
Or the EQUA command does not work or asking =2 is perhaps not correct. This also because of the second problem. If I ask LSTN=0 I expect everything starting with -1. I also get 0. Looking to the N I can see a "-0" displayed in it. But as I stated in my previous post, asking for - does not work.
What now??
Greetings
Fred
The last time I ran the script I looked at stor=1 and compared it to stor=2 and they were the same.
Then I took it apart and ran each part seperaty. Past hours data was saved all right and was correct. The current hours data also was saved corectly. I plotted one over the other and then ran the third part, the sdif=1:2. I devided the result into three parts and then contured each part seperately. This result was the isopleths were reversed those that were lstn=0 were plotted where the grtn=0 was supposed to be and visa-versa. This was confermed I contured equa=0 in a third color. Both sides plotted the 0 line. What I do not know is if the program findes the differance graphicly or mathamaticly, or it just does not know what to do.
I was wondering if sdif=2:1 would work.
I do not know what is going on with this and hopeing that Tim might beable to give some insites to the problem.
An idea just accured to me to runit with temperatures and see what happens. I will let you know.
Then I took it apart and ran each part seperaty. Past hours data was saved all right and was correct. The current hours data also was saved corectly. I plotted one over the other and then ran the third part, the sdif=1:2. I devided the result into three parts and then contured each part seperately. This result was the isopleths were reversed those that were lstn=0 were plotted where the grtn=0 was supposed to be and visa-versa. This was confermed I contured equa=0 in a third color. Both sides plotted the 0 line. What I do not know is if the program findes the differance graphicly or mathamaticly, or it just does not know what to do.
I was wondering if sdif=2:1 would work.
I do not know what is going on with this and hopeing that Tim might beable to give some insites to the problem.
An idea just accured to me to runit with temperatures and see what happens. I will let you know.