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The POSTFILE card may be repeated for each combination of averaging period and source group, and a different filename should be used for each file.  If UNFORM is specified for the Format parameter, then the resulting unformatted file includes a constant‑length record for each of the selected averaging periods calculated during the model run.  The first variable of each record is an integer variable (4 bytes) containing the ending date (YYMMDDHH) for the averages on that record.  The second variable for each record is an integer variable (4 bytes) for the number of hours in the averaging period.  The third variable for each record is a character variable of length eight containing the source group ID.  The remaining variables of each record contain the calculated average concentration or total deposition values for all receptors, in the order in which they were defined in the input runstream.

     The following examples illustrate the use of the POSTFILE option:

OU POSTFILE  24  ALL    UNFORM   PST24ALL.BIN

OU POSTFILE  24  PSD    UNFORM   PST24PSD.BIN

OU POSTFILE   3  PLANT  UNFORM   C:\BINOUT\PST3HR.FIL

OU POSTFILE  MONTH ALL    PLOT   PSTMONTH.PLT

OU POSTFILE PERIOD ALL    PLOT   PSTANN.PLT

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where the 3‑hour example illustrates the use of a DOS pathname for the PC, and the last example illustrates the use of monthly averages.  The Filnam parameter may be up to 40 characters in length.  The use of separate files for each averaging period/source group combination allows the user flexibility to select only those results that are needed for post‑processing for a particular run, and also makes the resulting unformatted files manageable.  Note:  The POSTFILE option can produce very large files, and should be used with some caution.  For a file of hourly values for a full year (8760 records) and 400 receptors, the resulting file will use about 14 megabytes of disk space.  To estimate the size of the file (in bytes), use the following equation:

 

                      (# of Hrs/Yr)

File Size (bytes)  =  ‑‑‑‑‑‑‑‑‑‑‑‑‑‑ * (# of Rec + 4) * 4

                      (# of Hrs/Ave)

 

Divide the result by 1000 to estimate the number of kilobytes (KB) and divide by 1.0E6 to estimate the number of megabytes (MB).

     When more than one output type is selected among the list of CONC, DEPOS, DDEP, and/or WDEP, the post-processing output file will include all of the output types selected, in the order listed here.  For the unformatted post-processing file, the results for each output type will be included on a single record for each averaging period and source group.  For the PLOT-formatted post-processing file, the results for each output type will be printed in separate columns, one record per receptor, in the order given above.

 

201 - 202 - 203 - 204 - 205 - 206 - 207 - 208 - 209 - 210 - 211 - 212 - 213 - 214 - 215 - 216 - 217 - 218 - 219 - 220 - 221 - 222 - 223 - 224 - 225 - 226 - 227 - 228 - 229 - 230 - 231 - 232 - 233 - 234 - 235 - 236 - 237 - 238 - 239 - 240 - 241 - 242 - 243 - 244 - 245 - 246 - 247 - 248 - 249 - 250

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castellano: DIS CUS DES  RAD   english: DIS CUS DES RAD  

 

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