Search found 98 matches

by Fantine
September 27th, 2018, 9:46 am
Forum: Conversion programs
Topic: converting multiple wrf output files to arl
Replies: 5
Views: 2535

Re: converting multiple wrf output files to arl

Are you able to process the WRF file containing data for 6 hours now?
For running arw2arl for a multiple-time-step file, you need to specify the time period. The program will process all the time steps in the file.
by Fantine
September 27th, 2018, 9:36 am
Forum: General questions on meteorological data needed for HYSPLIT
Topic: Extract GDAS 1° data
Replies: 2
Views: 1477

Re: Extract GDAS 1° data

You may consider making a script to download the gdas1 data through the ftp://arlftp.arlhq.noaa.gov/pub/archives/gdas1/ and use a program "xtrct_grid" (in exec directory) to subset the original file (global) to your region of interest. This will reduce the file size. In the script for running "xtrct...
by Fantine
August 8th, 2018, 9:24 am
Forum: Conversion programs
Topic: converting multiple wrf output files to arl
Replies: 5
Views: 2535

Re: converting multiple wrf output files to arl

When you merge ARL formatted files, make sure it was done orderly.
Use "chk_times" to check if all the time steps in the file are in a correct time sequence.
by Fantine
August 6th, 2018, 9:23 am
Forum: Conversion programs
Topic: converting multiple wrf output files to arl
Replies: 5
Views: 2535

Re: converting multiple wrf output files to arl

Process WRF output files individually and then use "cat" to merge all the ARL formatted files together.
by Fantine
July 30th, 2018, 10:36 am
Forum: In-line WRF-HYSPLIT coupling
Topic: CAPTEX example IC/BC data
Replies: 7
Views: 7930

Re: CAPTEX example IC/BC data

Please check the starting time of the trajectory calculation in the CONTROL file. It seems to be set to 17 UTC. But your WRF run was only for 6 hours. The trajectory calculation did not started at all that there was no value for HYOLAT and HYOLAN. For running trajectory, HYCSUM (concentration) shoul...
by Fantine
July 26th, 2018, 11:13 pm
Forum: In-line WRF-HYSPLIT coupling
Topic: CAPTEX example IC/BC data
Replies: 7
Views: 7930

Re: CAPTEX example IC/BC data

There is a bug in running the trajectory calculation. Please use the attached hyconc.F file - place it in the /hysp directory and then re-compile the model.
by Fantine
July 20th, 2018, 10:52 am
Forum: Users
Topic: Convert to ARL/NARR Archive Error
Replies: 1
Views: 1177

Re: Convert to ARL/NARR Archive Error

The converter works for NARR reanalysis, file name - narr-a_221_{YYYY}{MM}{DD}_{HH}00_000.grb (please check https://ready.arl.noaa.gov/hysplitusersguide/S119.htm). The "ERROR: 900" is because of applying the converter to wrong files. 3-hour NARR data in ARL format are available on the following FTP ...
by Fantine
June 28th, 2018, 10:18 am
Forum: Users
Topic: Conversion from GRID1 to ARL
Replies: 6
Views: 2311

Re: Conversion from GRID1 to ARL

Both api2arl and era52arl are dealing with GRIB format files. It is okay to start with era52arl if you see it fit better.
by Fantine
June 21st, 2018, 10:40 am
Forum: Users
Topic: Conversion from GRID1 to ARL
Replies: 6
Views: 2311

Re: Conversion from GRID1 to ARL

There are converters for different met data listing on the tutorial page: https://ready.arl.noaa.gov/documents/Tutorial/html/meteo_cnvrt.html Even though some of them (such as NARR, Global lat-lon, and ERA-40) are in GRIB1 format, they have their own converter because variable names, header info, an...
by Fantine
June 12th, 2018, 11:13 am
Forum: Conversion programs
Topic: Converting CESM 1.2 output to ARL
Replies: 1
Views: 1948

Re: Converting CESM 1.2 output to ARL

Output files from various met models may be in different formats, variable names, and header information. The arw2arl converter was developed primarily for output from WRF-ARW model (in NetCDF format). You can use the arw2arl converter as an example and customize it to work for CESM data. More info ...