Search found 7 matches

by acollow
October 24th, 2019, 12:04 pm
Forum: Conversion programs
Topic: Conversion for GEOS
Replies: 4
Views: 2845

Re: Conversion for GEOS

It has been a while but I am beginning to look into using GEOS with HYSPLIT again. I have been able to run my modified code that converts GEOS data to ARL however I noticed when running HYSPLIT, it crashes whenever the trajectory would cross the prime meridian. My thought is that the input data is -...
by acollow
February 16th, 2018, 3:00 pm
Forum: Conversion programs
Topic: Conversion for GEOS
Replies: 4
Views: 2845

Re: Conversion for GEOS

I made some modifications to the codes in /data2arl/mer2arl, as documented below, so that GEOS fp could be used. I was able to create an ARL file without any errors, which opened up using "check file" in the meteorology tab with the GUI (though the x dimension in the header was cutoff to reflect 115...
by acollow
February 9th, 2018, 10:43 am
Forum: Conversion programs
Topic: Conversion for GEOS
Replies: 4
Views: 2845

Conversion for GEOS

Has anyone modified the codes in /data2arl/mer2arl to use the GEOS FP data instead of MERRA-2? There are some differences in the data including the horizontal resolution and single time step for each file, aside from where the data needs to be downloaded from (https://portal.nccs.nasa.gov/datashare/...
by acollow
December 21st, 2017, 9:37 am
Forum: Trajectory Model
Topic: Using Multiple Data Files as Input
Replies: 2
Views: 1686

Re: Using Multiple Data Files as Input

I have it working now! Thank you so much! :D
by acollow
December 20th, 2017, 5:26 pm
Forum: Trajectory Model
Topic: Using Multiple Data Files as Input
Replies: 2
Views: 1686

Using Multiple Data Files as Input

Hello, I am running hysplit on linux using the example .sh script given in the tutorial. I would like to have back trajectories extend back multiple days, which requires more than one input file. How should the script be modified in order to do this? I tried to add in another line for data but when ...
by acollow
December 13th, 2017, 9:35 am
Forum: Conversion programs
Topic: MERRA2 dataset
Replies: 2
Views: 6874

Re: MERRA2 dataset

Thanks for making a conversion program available for MERRA-2! I already have MERRA-2 data and do not need to run the wget script, however it is on a -180 to 180 grid as opposed to 0 to 360. I tried to modify mer2arl.f by commenting out the following section: ! do ii=1,nxp ! idx=ii-289+1 ! if (idx .l...
by acollow
November 9th, 2017, 12:16 pm
Forum: General questions on meteorological data needed for HYSPLIT
Topic: MERRA-2 Data for HYSPLIT
Replies: 2
Views: 2673

MERRA-2 Data for HYSPLIT

Hello,
After searching the forum I found an out post stating that MERRA does not provide he variables needed to force HYSPLIT. Is this the case for MERRA-2 as well? If so, what variables would need to be added to the data collection?

Thanks!