Search found 180 matches

by alicec
March 16th, 2020, 10:05 am
Forum: Users
Topic: Deposition and Dose Calculation
Replies: 3
Views: 520

Re: Deposition and Dose Calculation

1. Currently the utility, stn2arl, which creates the metfiles from the user entered data does not allow for the inclusion of precip fields. 2-3: You may find material in the advanced tutorial helpful. https://www.ready.noaa.gov/HYSPLIT_Tutorials.php https://www.ready.noaa.gov/documents/TutorialX/htm...
by alicec
February 26th, 2020, 1:35 pm
Forum: Users
Topic: api2arl_v4: unable to convert precipitation rate
Replies: 5
Views: 472

Re: api2arl_v4: unable to convert precipitation rate

There is a lot of information in the Readme_api2arl.txt file The documentation on the HYSPLIT met data variables lists the most common HYSPLIT met parameters but is not currently comprehensive. https://ready.arl.noaa.gov/hysplitusersguide/S141.htm sfcgrb and atmgrb give the short name for the variab...
by alicec
February 25th, 2020, 9:36 am
Forum: Users
Topic: api2arl_v4: unable to convert precipitation rate
Replies: 5
Views: 472

Re: api2arl_v4: unable to convert precipitation rate

Is it a 1 hour precipitation rate in your grib file? HYSPLIT can currently utilize a 3 or 6 hour precipitation rate (PRT3, PRT6). Adding a 1 hour precip rate would not be hard, but it currently isn't there. So if you had a 3 hour precip rate, then in your api2arl.cfg file you would need to specify t...
by alicec
February 25th, 2020, 9:19 am
Forum: Users
Topic: api2arl_v4: unable to convert precipitation rate
Replies: 5
Views: 472

Re: api2arl_v4: unable to convert precipitation rate

In your api2arl.cfg file you are telling the conversion program that the TPP1 variable (HYSPLIT terminology)
has the short name 'tp' in the grib file. The TPP1 should be the accumulated precip over 1 hour.
If your grib file doesn't have that in it, then the ARL file you produce will not have precip.
by alicec
February 19th, 2020, 11:38 am
Forum: MeteoInfo Software
Topic: Convert ERA5 data to ARL data
Replies: 2
Views: 342

Re: Convert ERA5 data to ARL data

When comparing WWND (vertical velocity) and precip fields please take into account the DIFW (DIFR for precip) fields as well. See below. Let us know if this helps. Alice https://ready.arl.noaa.gov/hysplitusersguide/S141.htm Starting with HYSPLIT (Revision 596) the optional field DIFF is recognized a...
by alicec
February 14th, 2020, 4:37 pm
Forum: Dispersion Model
Topic: Question about 'Number of particle and puff'
Replies: 6
Views: 847

Re: Question about 'Number of particle and puff'

Please set the last value in your CONTROL file to 0. You are using a pollutant resuspension factor which is causing new particles to be emitted from the places that you have deposition. If you do not use this then you will be able to emit 100 particles per hour using numpar = -100 and you will not e...
by alicec
February 14th, 2020, 3:43 pm
Forum: Dispersion Model
Topic: Question about 'Number of particle and puff'
Replies: 6
Views: 847

Re: Question about 'Number of particle and puff'

Could you try the following and then send your MESSAGE file. run with only the the following in your SETUP.CFG &SETUP NUMPAR = -100, MAXPAR = 500000, INITD = 0, / Also try just running for 24 hours at first. (change the 165 to 24 in line 4 of your CONTROL file) 17 06 19 03 1 35.41 126.42 50.0 24 0 1...
by alicec
February 14th, 2020, 2:57 pm
Forum: Conversion programs
Topic: Segmentation fault using era52arl
Replies: 14
Views: 2956

Re: Segmentation fault using era52arl

Please make sure you have the latest version of era52arl.f I have added the most recent version to the github repository so you may get it from there as well. https://github.com/amcz/hysplit_metdata Try using the grib_dump utility with eccodes to see what is in your grib file. https://confluence.ecm...
by alicec
February 10th, 2020, 10:58 am
Forum: Conversion programs
Topic: error in era52arl
Replies: 1
Views: 356

Re: error in era52arl

Try using the grib_dump utility with eccodes to see what is in your grib file.
https://confluence.ecmwf.int//display/ECC/GRIB+tools

Also please make sure you are using the latest version of the era52arl.

Alice
by alicec
January 27th, 2020, 12:26 pm
Forum: Announce
Topic: TAPPAS
Replies: 2
Views: 5914

Re: TAPPAS

I believe this github repository, splitr, is fairly popular among R users.

https://github.com/rich-iannone/splitr