Modifications in the era52arl.cfg file

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draba914
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Joined: December 9th, 2022, 10:44 am
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Modifications in the era52arl.cfg file

Post by draba914 »

Thanks to the help from sonny.zin, I was able to compile the conversion program era52arl.
I would like to try converting the fraction of cloud cover data from the ERA5 hourly data on pressure level data set(https://cds.climate.copernicus.eu/cdsap ... b=overview). Since this is not surface level data but for the atmophere, I believe it should be added to the "atm" section of the cfg file.

I have consulted the ECMWF parameter database for the information of fraction of cloud cover and this is its information:
Screenshot 2023-04-19 131746.png
And I have done the following modifications already.

Code: Select all

numatm = 7,
 atmgrb = 'z','t','u','v','w','r','cc',
 atmcat =      129 ,   130 ,    131 ,   132 ,   135 ,    157 ,   248 ,
 atmnum =      129 ,   130 ,    131 ,   132 ,   135 ,    157 ,   248 ,
But I am unsure what to add for atmcnv and atmarl.
Even though Fraction of Cloud Coverage is different from TCLD, based on viewtopic.php?f=14&t=2129&p=6134&hilit=cloud+era5#p6134, I'm guessing that the conversion should be 100, since cc is also from 0 to 1.
However, I could not find the correct atmarl to use from https://www.ready.noaa.gov/hypub/flddesc.html.

Since there isn't an official field ID, can I just give it a random one?
My end goal of doing this is to just allow me to obtain the cloud coverage data along the trajectory endpoints through HYSPLIT's interpolation.
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