Dispersion Model • Re: Utilizing Particle Size Characteristics

Hello!

You can define different 'species' in HYSPLIT. Each species (pollutant) has it's own emission rate, emission duration, release start time,
https://www.ready.noaa.gov/hysplitusersguide/S312.htm
Each one also has it's own deposition and gravitational settling parameters
https://www.ready.noaa.gov/hysplitusersguide/S314.htm

See also this part of the tutorial.
https://www.ready.noaa.gov/documents/Tu ... _volc.html

Below is an example control file for a simulation with four different types of particles.


10 04 14 00
2
63.63 -19.62 100.0
63.63 -19.62 6000.0
12
0
32000.0
1
../../Tutorial/volcano/
apr1420.bin
4 # Number of Species
p006 # SPECIES ID
0.008E+16 # Emission rate
12.0 # emission duration (hours)
00 00 00 00 00 # emission start time (if all 0 then use simulation start)
p020 # SPECIES ID for 2nd species
0.068E+16
12.0
00 00 00 00 00
p060 # SPECIES ID for 3rd species
0.250E+16
12.0
00 00 00 00 00
p200 # SPECIES ID for 4th species
0.670E+16
12.0
00 00 00 00 00
1
45.0 0.0
0.25 0.25
90.0 360.0
./
cdump
1
10000
00 00 00 00 00
00 00 00 00 00
00 06 00
4 #number of SPECIES
0.6 2.5 1.0 # diameter, density, shape
0 0.0 0.0 0.0 0.0 # vel, mol wgt, A-ratio, d-ratio, henry
0.0 8.0E-05 8.0E-05 # henry, in cloud, below cloud,
0.0 # radioactive decay
0.0 # pollutant resuspension
2.0 2.5 1.0 # REPEAT FOR SECOND SPECIES
0 0.0 0.0 0.0 0.0
0.0 8.0E-05 8.0E-05
0.0
0.0
6.0 2.5 1.0 # REPEAT FOR THIRD SPECIES
0 0.0 0.0 0.0 0.0
0.0 8.0E-05 8.0E-05
0.0
0.0
20.0 2.5 1.0 # REPEAT FOR FOURTH SPECIES
0 0.0 0.0 0.0 0.0
0.0 8.0E-05 8.0E-05
0.0
0.0

Statistics: Posted by alicec — December 1st, 2023, 10:30 am

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