APPENDIX F. DESCRIPTION OF FILE FORMATS

F.1 ASCII METEOROLOGICAL DATA

     The ISCST and ISCEV models are designed to accept a wide range of ASCII meteorological data file formats.  The use of ASCII files for meteorological data has two distinct advantages over the use of unformatted data files, such as are generated by the PCRAMMET and MPRM preprocessors (see the next section). The first advantage is the portability of the data files to different compilers and computer systems used for running the models.  The second advantage is that the data file can be examined easily to determine its contents, and listed to the computer screen or to a printer for later reference.  The user may specify the use of the default ASCII format by leaving the formet field blank on the ME INPUTFIL card.  The user may also specify FREE‑formatted reads for the meteorological data, may specify the Fortran read format explicitly, or may select the CARD option, which allows for the input of hourly wind profile exponents and vertical potential temperature gradients.

 

     The first record of the meteorological data input file contains the station number and year for both the surface station and the upper air (mixing height) station.  For the formatted ASCII files, these four integer variables are read using a free‑format READ, i.e., the variables must be separated by either a comma or by one or more blank spaces.  The order of these variables is as follows:

Surface Station Number, e.g., WBAN Number for NWS data

Year for Surface Data (2 or 4 digits)

Upper Air Station Number (for Mixing Height Data)

Year for Upper Air Data (2 or 4 digits)

 

The model checks these variables against the values input by the user on the ME SURFDATA and ME UAIRDATA cards (see Section 3.5.3).

 

 

301 - 302 - 303 - 304 - 305 - 306 - 307 - 308 - 309 - 310 - 311 - 312 - 313 - 314 - 315 - 316 - 317 - 318 - 319 - 320 - 321 - 322 - 323 - 324 - 325 - 326 - 327 - 328 - 329 - 330 - 331 - 332 - 333 - 334 - 335 - 336 - 337 - 338 - 339 - 340 - 341 - 342 - 343 - 344 - 345 - 346 - 347 - 348 - 349 - 350

 

 

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