HYSPLIT Forum: hysplitbbs.arl.noaa.gov

Alice, Thank you so much for the reply! We read carefully of the other post you pointed. Based on our interpretation, given the use of HRRR or a single onsite met data and the spatial resolution our near-source application may not be appropriate for HYSPLIT? Our alternative plan is using CALPUFF. Do...

Dear all, I am doing a very simple CH4 concentration simulation from a single point continuous source, using both pure puff (initd=1) and hybrid (initd=3) mode and HRRR met. data. The simulation last for an hour and with the hybrid mode I am using 15000 particles in total. I am using mostly default ...

Thank you very much for the reply! That is extremely helpful!

Dear all, I am doing a very simple concentration simulation with Hysplit. I have constant emissions from a single point source and the simulation duration is a week. I am driving the simulation using the HRRR data. I am generating min-by-min simulated concentrations at roughly 100 m x 100 m grid cel...

Thank you for the reply!

I'd like to get simulated concentration at one-minute resolution and 100m x 100m spatial resolution. My input meteorological data is HRRR, which is hourly and 3km data. I can specify the grid spacing to be 0.01 degree (roughly 100 m) and sampling interval to 1 min in my Hysplit Setup. But I want to ...

We are trying to run "hycm_std" on our platform with 32 nodes. However, we notice that the simulation time is same or even slower than "hycs_std". Is there any test case that we could test our MPI run and benchmark the simulation time? Just try to make sure there is nothing wrong with our setting. I...

The same question has been posted under "Hysplit Linux" session but I thought this is more a general question so move here... I am confused by the way that Hysplit treats the emission rate and the emission duration. For example, I have two emission scenario. For the first emission scenario, I have a...

I am confused by the way that Hysplit treats the emission rate and the emission duration. For example, I have two emission scenario. For the first emission scenario, I have a constant emission rate at 100 kg/hr and the emission duration is set to one hour. For the second emission scenario, I still h...

I have a simple "EMITIMES" file that looks like below: YYYY MM DD HH DURATION(hhhh) #RECORDS YYYY MM DD HH MM DURATION(hhmm) LAT LON HGT(m) RATE(/h) AREA(m2) HEAT(w) 2019 09 25 05 01 2 2019 09 25 05 00 0010 31.731277 -101.876357 5 100 0.0 0.0 2019 09 25 05 10 0010 31.731277 -101.876357 5 50 0.0 0.0 ...