How to view the output file of simulation results?concentration

Topics about the HYSPLIT dispersion model.
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Reley
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How to view the output file of simulation results?concentration

Post by Reley » March 26th, 2020, 5:32 am

Hello! everyone!
When I use the concentration module to simulate the pollutant concentration, I set the relevant parameters in the setup run, and then visualize the final simulation results in the display(as shown below). However, I would like to know how to view the output file of the simulation, for example, to see the diffusion to specific location and corresponding concentration. Can someone tell me how to check it? Thank you!
display.png

sonny.zinn
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Re: How to view the output file of simulation results?concentration

Post by sonny.zinn » March 26th, 2020, 6:12 am

If HYSPLIT is installed on your PC, there is a program that converts a concentration output file to a text file. It is called con2asc.exe (on Windows). con2asc.exe is located in the C:\hysplit4\exec directory if the default value is used at the time of installation. It is a console program so it should be run after opening a DOS prompt.

Reley
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Re: How to view the output file of simulation results?concentration

Post by Reley » March 27th, 2020, 11:21 pm

yes,I find it.But where can I find the converted TXT file?

Reley
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Re: How to view the output file of simulation results?concentration

Post by Reley » March 28th, 2020, 2:15 am

yes,I find it.But I ran con2asc.exe on the DOS program without any response. Or have I converted to a text file? If the convertion is successful, what are the hints? Then where to find the converted Text file? :)

sonny.zinn
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Re: How to view the output file of simulation results?concentration

Post by sonny.zinn » March 30th, 2020, 9:12 am

Suppose your concentration file is named as hysplit2.bin in the C:\hysplit4\working directory. Running the following command in the working directory:

> ..\exec\con2asc -ihysplit2.bin

will print the name of the output file. My run showed hysplit2.bin_269_04 which may be examined by using the more command from Windows:

> more hysplit2.bin_269_04

Reley
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Re: How to view the output file of simulation results?concentration

Post by Reley » March 31st, 2020, 5:51 am

Thanks.I get it. I convert to text. File. In the text file, is the last column the concentration value of the pollutant diffused to the corresponding line? like the following picture.What does 00100 represent in the picture?
new.PNG
new.PNG (4.27 KiB) Viewed 656 times

sonny.zinn
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Re: How to view the output file of simulation results?concentration

Post by sonny.zinn » March 31st, 2020, 6:34 am

The last column in your file is concentration. The name of the column consists of a pollutant identification string and the vertical level (in meters) of a concentration grid being printed. More details on CON2ASC is found at https://ready.arl.noaa.gov/hysplitusersguide/S341.htm.

glaptev
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Re: How to view the output file of simulation results?concentration

Post by glaptev » April 15th, 2020, 11:47 am

As a newbie, I wonder if it's possible to extract time series from a single (multiple) location using existing binary concentration file (cdump_nnn.bin)? I've tried to do it from the GUI Concentration/Utilities/Convert to Station, but it ask for Run Setup first. Of course I can extract it from ASCII converted file, though I am sure there should be much smarter way to do it. Thanks, Gennady.

ariel.stein
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Re: How to view the output file of simulation results?concentration

Post by ariel.stein » April 17th, 2020, 9:48 am

Please take a look at the following tutorial
https://www.ready.noaa.gov/documents/Tu ... _util.html

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