Search found 197 matches

by alicec
June 5th, 2020, 11:05 am
Forum: HYSPLIT for PCs
Topic: Concentration vs distance
Replies: 1
Views: 11

Re: Concentration vs distance

It is very common for people to want to do their own analysis of the concentration output. The following are options for reading the cdump files. 1. convert the files to asc format. There is a HYSPLIT utility called con2asc which will convert the binary files to asc format so you can read them more ...
by alicec
May 28th, 2020, 11:08 am
Forum: HYSPLIT for PCs
Topic: Error when I try to run the concentration feature
Replies: 10
Views: 74

Re: Error when I try to run the concentration feature

Can you make sure there is a file called
cdump in your working directory?
by alicec
May 26th, 2020, 2:50 pm
Forum: HYSPLIT for PCs
Topic: Error when I try to run the concentration feature
Replies: 10
Views: 74

Re: Error when I try to run the concentration feature

Please set the last line in the CONTROL file to 0.
If you are using the GUI make sure you have pollutant resuspension factor set to 0.

https://ready.arl.noaa.gov/hysplitusersguide/S314.htm
by alicec
May 22nd, 2020, 8:42 am
Forum: HYSPLIT for PCs
Topic: Error when I try to run the concentration feature
Replies: 10
Views: 74

Re: Error when I try to run the concentration feature

Please attach a text file not .rar.

Thanks.
by alicec
May 19th, 2020, 9:37 am
Forum: HYSPLIT for PCs
Topic: Error when I try to run the concentration feature
Replies: 10
Views: 74

Re: Error when I try to run the concentration feature

Can you please post your CONTROL and SETUP.CFG file.
Also if a MESSAGE file was generated please include that.
Thank you.
by alicec
May 18th, 2020, 8:20 am
Forum: Bugs
Topic: question about DATEM format
Replies: 4
Views: 114

Re: question about DATEM format

The HYSPLIT sampling time interval has the same format HH MM and cannot be longer than 99 hours. https://ready.arl.noaa.gov/hysplitusersguide/S313.htm I suppose you can always average output from multiple time periods from the HYSPLIT output. How you proceed really depends on the details of what you...
by alicec
May 13th, 2020, 5:30 pm
Forum: HYSPLIT for PCs
Topic: Trying to Recreate Image
Replies: 2
Views: 41

Re: Trying to Recreate Image

by alicec
May 13th, 2020, 5:27 pm
Forum: Bugs
Topic: question about DATEM format
Replies: 4
Views: 114

Re: question about DATEM format

The duration in HHMM format refers to the duration of the sampling time. For instance if the sampler took 3 hour samples over a five day time period the duration would be 0300. The sample start time is defined in other columns and there would be one entry for each of of the 3 hour samples over the 5...
by alicec
May 7th, 2020, 10:29 am
Forum: Dispersion Model
Topic: Molecular Weight of Particles for Dry Deposition Simulation
Replies: 4
Views: 212

Re: Molecular Weight of Particles for Dry Deposition Simulation

This post contains information on the dry deposition options in HYSPLIT. The tech memo contains complete details about the equations used to compute deposition. https://www.arl.noaa.gov/wp_arl/wp-cont ... rl-224.pdf Dry deposition is controlled by lines described here https://ready.arl.noaa.gov/hysp...
by alicec
May 4th, 2020, 3:28 pm
Forum: Dispersion Model
Topic: Molecular Weight of Particles for Dry Deposition Simulation
Replies: 4
Views: 212

Re: Molecular Weight of Particles for Dry Deposition Simulation

Please reference the tech memo and references found therein. https://www.arl.noaa.gov/wp_arl/wp-content/uploads/documents/reports/arl-224.pdf If you have the molecular weight set to 0 then see section 5.1 and 5.2 in the tech memo. The dry deposition velocity in 5.2 is simply the settling velocity in...