Search found 10 matches
- August 13th, 2021, 7:52 am
- Forum: Users
- Topic: Hysplit options related to horizontal/vertical dispersion
- Replies: 2
- Views: 5786
Re: Hysplit options related to horizontal/vertical dispersion
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...
- July 28th, 2021, 4:37 am
- Forum: Users
- Topic: Hysplit options related to horizontal/vertical dispersion
- Replies: 2
- Views: 5786
Hysplit options related to horizontal/vertical dispersion
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 ...
- July 27th, 2021, 10:33 am
- Forum: Users
- Topic: Long simulation time. Wrong configurations?
- Replies: 2
- Views: 5936
Re: Long simulation time. Wrong configurations?
Thank you very much for the reply! That is extremely helpful!
- February 27th, 2021, 10:21 pm
- Forum: Users
- Topic: Long simulation time. Wrong configurations?
- Replies: 2
- Views: 5936
Long simulation time. Wrong configurations?
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...
- January 27th, 2021, 10:47 am
- Forum: HYSPLIT for LINUX
- Topic: Wrong EMITIMES formatting?
- Replies: 2
- Views: 18835
Re: Wrong EMITIMES formatting?
Thank you for the reply!
- January 26th, 2021, 11:18 am
- Forum: Dispersion Model
- Topic: How does hysplit do spatial and temporal interpolation?
- Replies: 1
- Views: 5039
How does hysplit do spatial and temporal interpolation?
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 ...
- November 17th, 2020, 2:07 am
- Forum: HYSPLIT for LINUX
- Topic: Test case for benchmarking MPI run
- Replies: 1
- Views: 17119
Test case for benchmarking MPI run
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...
- September 30th, 2020, 8:51 pm
- Forum: Dispersion Model
- Topic: How Hysplit treats emission rate and emission duration hour?
- Replies: 1
- Views: 3537
How Hysplit treats emission rate and emission duration hour?
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...
- September 30th, 2020, 11:51 am
- Forum: HYSPLIT for LINUX
- Topic: How Hysplit treats emission rate and emission duration hour?
- Replies: 1
- Views: 16955
How Hysplit treats emission rate and emission duration hour?
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...
- September 30th, 2020, 11:37 am
- Forum: HYSPLIT for LINUX
- Topic: Wrong EMITIMES formatting?
- Replies: 2
- Views: 18835
Wrong EMITIMES formatting?
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 ...