Search found 8 matches

by acollow
June 8th, 2023, 12:10 pm
Forum: Conversion programs
Topic: Conversion for GEOS
Replies: 5
Views: 26368

Re: Conversion for GEOS

I am back to using HYSPLIT and once again want to force it with GEOS. Could someone advise what the appropriate METGRID.CFG and cfgrec.f should contain. GEOS FP currently has 1152 longitude points from -180 to 180 and 721 latitude points from -90 to 90. I am able to generate files but when running t...
by acollow
October 24th, 2019, 12:04 pm
Forum: Conversion programs
Topic: Conversion for GEOS
Replies: 5
Views: 26368

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: 5
Views: 26368

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: 5
Views: 26368

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: 3127

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: 3127

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: 10497

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: 4261

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!

Go to advanced search