The user could then generate annual average results by specifying only PERIOD on the CO AVERTIME card. The emission rate factor may be varied by month in the process. With the same meteorological data file, the user could also calculate results for the first quarter only by changing the AVERTIME card to read:
This would result in results being produced for each of the first three months of the year and for the combined period of JAN‑MAR. Each quarter could be calculated in turn simply by changing the AVERTIME card as follows:
By specifying MONTH on the ME STARDATA card, the model will be able to retrieve the correct STAR summary for each of these cases. The only requirement is that STAR summaries always be included in the following order within the meteorological data file:
Any number of STAR summaries may be included, up to a maximum of 17 (for 12 months, plus 4 seasons or quarters, plus 1 annual.
3.5.5 Specifying a Data Period to Process (Applies Only to ISCST)
There are two keywords that allow the user to specify particular days or ranges of days to process from the sequential meteorological file input for the ISCST model. The STARTEND keyword controls which period within the meteorological data file is read by the model, while the DAYRANGE keyword controls which days or ranges of days (of those that are read) for the model to process. The default for the model is to read the entire meteorological data file (up to a full year) and to process all days within that period.
The syntax and type for the STARTEND keyword are summarized below:
ME STARTEND Strtyr Strtmn Strtdy (Strthr) Endyr Endmn Enddy (Endhr)
where the Strtyr Strtmn Strtdy parameters specify the year, month and day of the first record to be read (e.g., 87 01 31 for January 31, 1987), and the parameters Endyr Endmn Enddy specify the year, month and day of the last record to be read. The Strthr and Endhr are optional parameters that may be used to specify the start and end hours for the data period to be read. If either Strthr or Endhr is to be specified, then both must be specified. Any records in the data file that occur before the start date are ignored, as are any records in the data file that occur after the end date. In fact, once the end date has been reached, the model does not read any more data from the meteorological file. If Strthr and Endhr are not specified, then processing begins with hour 1 of the start date, and ends with hour 24 of the end date, unless specific days are selected by the DAYRANGE card described below.
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
castellano: DIS CUS DES RAD english: DIS CUS DES RAD
português: DIS CUS DES RAD italiano: DIS CUS DES RAD
français: DIS CUS DES RAD