Tuesday, November 14, 2006

Progress report

Just a progress report:

1) After almost 18 hours of coding, CMAQ 4.6 runs on System X! I had to completely reinstrument the parallel I/O and stencil exchange libraries to get it working, but I've managed to run the CMAQ tutorial on System X (the results check out, so I didn't break anything ;) ). There's still a problem with file permissions on the compute nodes, so I haven't been able to try a VISTAS run yet, but the LASCA staff are working on it (so they say). I'll probably need some help identifying the most appropriate data files for input, and I'm not convinced that bcon and icon only need to be run once. I think you need to re-run them for different domains, so that means finding the correct inputs. Is this true?

2) I'm rebuilding CMAQ 4.5 on ene-411-lmarr to try to get our data to match the benchmark. I have questions about which input files are the most useful, but there are so many choices I think I'm just going to have to sit down with Linsey one morning and sort this out. E-mail!

3) I've found a detailed description of the entire Virginia ambiant air monitoring network in the Virginia Ambiant Air Monitoring 2002 Data report (http://www.deq.state.va.us/airmon/pdf/AnnualRpt02.pdf). This includes station numbers, pollutants, locations, airs numbers, and lat/long. I'm working on finding data for each of these sites.

4) I've found complete data for two IMPROVE sites: JARl1 and SHEN1. I'm still trying to make sense of what I found. Data is in /home/jlinford/ambiant_data as OpenOffice.org spreadsheets.

5) Does anybody know where I can simply "look up" data given a monitoring site? I mean, the EPA must keep this stuff somewhere, and what good are these goofy site id numbers if you can't query a database with them....

2 Comments:

At 10:48 AM, Blogger Dr. Ironchick said...

1) Nice job on System X! JPROC needs to be run once for each modeling day. The VISTAS group has already done this and has provided JPROC files as part of the 3 TB of data on our hard disks. The initial conditions (starting concentrations in each grid in the domain) can either be generated for each day by the program ICON or read from the previous day's output file. This may be a potential source of discrepancy in our CCTM output if we're using the ICON files but should instead be getting our initial conditions from the previous day's files. I don't remember in which script the switch lives, but we can try to find it on Thursday if you can't find it. The boundary condition files are generated by BCON, and we have the files generated by the VISTAS group, which they then used as input to CCTM.

5) Have you found EPA's air quality system at http://www.epa.gov/ttn/airs/airsaqs/index.htm? I don't know how to use it, but I believe all the data are there.

 
At 9:28 AM, Anonymous モテる度チェッカー said...

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