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6   <title>OPAC ftp distribution</title>
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9
10<hr>
11<h1>
12The OPAC ftp distribution:</h1>
13
14<hr>
15<h3>
16<u>Version</u></h3>
17This is Version 3.1a of OPAC. It is the first official release. Further
18information can be found here:
19<br>&nbsp;
20<br>&nbsp;
21<ul>
22<li>
23<a href="opacnews.html">Changes against former versions.</a></li>
24
25<li>
26<a href="opactodo.html">List of desirable improvements.</a></li>
27</ul>
28<a NAME="ftp"></a>
29<h3>
30<u>Download</u></h3>
31OPAC is available <a href="http://ara.lmd.polytechnique.fr/ftpgeisa?geisa/iasi/aerosol/prog/opac31a_tar.gz">here</a>.
32<br>&nbsp;
33<br>&nbsp;
34<h3>
35<u>Feedback</u></h3>
36We don't get any funding for this project and thus we can't spend much
37time for it. But we appreciate any hints about problems with the data set
38or suggestions for its improvement, and we will try to discuss and include
39them in future versions. Please feel free to <a href="mailto:m.hess@lrz.uni-muenchen.de">send
40us an email</a>.
41<h3>
42<u>Hardware requirements</u></h3>
43OPAC consists of ASCII files, which contain the optical properties of cloud
44and aerosol components, and of a FORTRAN program, which allows to handle
45the data. The FORTRAN program was tested to compile and run under DOS (Microsoft
46Fortran 5.0), Linux (GNU f2c converter), DEC Ultrix, HP Unix, and SunOS.
47<p>The whole package requires about 3.5 MB storage capacity.
48<h3>
49<u>Installation</u></h3>
50To install OPAC, please extract the archive in an empty directory:
51<blockquote>> gzip -d opac31a.tar.gz
52<br>> tar -xvf opac31a.tar</blockquote>
53This will create 2 subdirectories and copy all files in their appropriate
54places. The tar and gzip programs are also available for DOS <a href="http://www.leo.org/komp_prob.html">(e.g.
55here)</a>.
56<p>If you did already install the <a href="gads.html">Global Aerosol Data
57Set (GADS)</a>, you should install OPAC in the same directory, since GADS
58and OPAC use the same set of optical data of aerosol components, which
59are stored in the subdirectory <b>optdat</b>.
60<p>Now the FORTRAN program has to be compiled. On most UNIX computers,
61this requires something like:
62<blockquote>> f77 opac.f -o opac
63<br>&nbsp;</blockquote>
64In this case, <b>opac</b> will be the name of the executable file. Some
65compilers give warning errors, which may be ignored. If you want to use
66a DOS computer, you must comment out lines 505-507 instead of 501-503 in
67opac.f. The "\" character is not understood by all compilers.
68<br>&nbsp;
69<br>&nbsp;
70<h3>
71<u>The following files belong to OPAC:</u></h3>
72
73<ul>
74<li>
75The optical properties of the clouds and of the 10 aerosol components,
76for up to 8 relative humidities and 61 wavelengths are stored in the subdirectory
77<b>optdat</b>.
78Each cloud or aerosol component has up to 8 files (for the humidity classes),
79each containing data for all 61 wavelengths. The filename consists of a
804 letter approximation for the cloud or the aerosol component, combined
81with the relative humidity, for which the optical properties have been
82calculated. For clouds only 1 file exists, which is attributed to 0% humidity,
83indicating that there is no dependence of size distribution with relative
84humidity taken into account.</li>
85
86<table BORDER=2 >
87<tr>
88<th>~</th>
89
90<th>0%</th>
91
92<th>50%</th>
93
94<th>70%</th>
95
96<th>80%</th>
97
98<th>90%</th>
99
100<th>95%</th>
101
102<th>98%</th>
103
104<th>99%</th>
105</tr>
106
107<tr>
108<td>insoluble</td>
109
110<td ALIGN=CENTER>inso00</td>
111
112<td ALIGN=CENTER>-</td>
113
114<td ALIGN=CENTER>-</td>
115
116<td ALIGN=CENTER>-</td>
117
118<td ALIGN=CENTER>-</td>
119
120<td ALIGN=CENTER>-</td>
121
122<td ALIGN=CENTER>-</td>
123
124<td ALIGN=CENTER>-</td>
125</tr>
126
127<tr>
128<td>watersoluble</td>
129
130<td ALIGN=CENTER>waso00</td>
131
132<td ALIGN=CENTER>waso50</td>
133
134<td ALIGN=CENTER>waso70</td>
135
136<td ALIGN=CENTER>waso80</td>
137
138<td ALIGN=CENTER>waso90</td>
139
140<td ALIGN=CENTER>waso95</td>
141
142<td ALIGN=CENTER>waso98</td>
143
144<td ALIGN=CENTER>waso99</td>
145</tr>
146
147<tr>
148<td>soot</td>
149
150<td ALIGN=CENTER>soot00</td>
151
152<td ALIGN=CENTER>-</td>
153
154<td ALIGN=CENTER>-</td>
155
156<td ALIGN=CENTER>-</td>
157
158<td ALIGN=CENTER>-</td>
159
160<td ALIGN=CENTER>-</td>
161
162<td ALIGN=CENTER>-</td>
163
164<td ALIGN=CENTER>-</td>
165</tr>
166
167<tr>
168<td>sea salt(acc. mode)</td>
169
170<td ALIGN=CENTER>ssam00</td>
171
172<td ALIGN=CENTER>ssam50</td>
173
174<td ALIGN=CENTER>ssam70</td>
175
176<td ALIGN=CENTER>ssam80</td>
177
178<td ALIGN=CENTER>ssam90</td>
179
180<td ALIGN=CENTER>ssam95</td>
181
182<td ALIGN=CENTER>ssam98</td>
183
184<td ALIGN=CENTER>ssam99</td>
185</tr>
186
187<tr>
188<td>sea salt(coa. mode)</td>
189
190<td ALIGN=CENTER>sscm00</td>
191
192<td ALIGN=CENTER>sscm50</td>
193
194<td ALIGN=CENTER>sscm70</td>
195
196<td ALIGN=CENTER>sscm80</td>
197
198<td ALIGN=CENTER>sscm90</td>
199
200<td ALIGN=CENTER>sscm95</td>
201
202<td ALIGN=CENTER>sscm98</td>
203
204<td ALIGN=CENTER>sscm99</td>
205</tr>
206
207<tr>
208<td>mineral (nuc. mode)</td>
209
210<td ALIGN=CENTER>minm00</td>
211
212<td ALIGN=CENTER>-</td>
213
214<td ALIGN=CENTER>-</td>
215
216<td ALIGN=CENTER>-</td>
217
218<td ALIGN=CENTER>-</td>
219
220<td ALIGN=CENTER>-</td>
221
222<td ALIGN=CENTER>-</td>
223
224<td ALIGN=CENTER>-</td>
225</tr>
226
227<tr>
228<td>mineral (acc. mode)</td>
229
230<td ALIGN=CENTER>miam00</td>
231
232<td ALIGN=CENTER>-</td>
233
234<td ALIGN=CENTER>-</td>
235
236<td ALIGN=CENTER>-</td>
237
238<td ALIGN=CENTER>-</td>
239
240<td ALIGN=CENTER>-</td>
241
242<td ALIGN=CENTER>-</td>
243
244<td ALIGN=CENTER>-</td>
245</tr>
246
247<tr>
248<td>mineral (coa. mode)</td>
249
250<td ALIGN=CENTER>micm00</td>
251
252<td ALIGN=CENTER>-</td>
253
254<td ALIGN=CENTER>-</td>
255
256<td ALIGN=CENTER>-</td>
257
258<td ALIGN=CENTER>-</td>
259
260<td ALIGN=CENTER>-</td>
261
262<td ALIGN=CENTER>-</td>
263
264<td ALIGN=CENTER>-</td>
265</tr>
266
267<tr>
268<td>mineral (transported)</td>
269
270<td ALIGN=CENTER>mitr00</td>
271
272<td ALIGN=CENTER>-</td>
273
274<td ALIGN=CENTER>-</td>
275
276<td ALIGN=CENTER>-</td>
277
278<td ALIGN=CENTER>-</td>
279
280<td ALIGN=CENTER>-</td>
281
282<td ALIGN=CENTER>-</td>
283
284<td ALIGN=CENTER>-</td>
285</tr>
286
287<tr>
288<td>sulfate droplets</td>
289
290<td ALIGN=CENTER>suso00</td>
291
292<td ALIGN=CENTER>suso50</td>
293
294<td ALIGN=CENTER>suso70</td>
295
296<td ALIGN=CENTER>suso80</td>
297
298<td ALIGN=CENTER>suso90</td>
299
300<td ALIGN=CENTER>suso95</td>
301
302<td ALIGN=CENTER>suso98</td>
303
304<td ALIGN=CENTER>suso99</td>
305</tr>
306
307<tr>
308<td>.</td>
309
310<td>.</td>
311
312<td>.</td>
313
314<td>.</td>
315
316<td>.</td>
317
318<td>.</td>
319
320<td>.</td>
321
322<td>.</td>
323
324<td>.</td>
325</tr>
326
327<tr>
328<td>stratus (continental)</td>
329
330<td ALIGN=CENTER>stco00</td>
331
332<td ALIGN=CENTER>-</td>
333
334<td ALIGN=CENTER>-</td>
335
336<td ALIGN=CENTER>-</td>
337
338<td ALIGN=CENTER>-</td>
339
340<td ALIGN=CENTER>-</td>
341
342<td ALIGN=CENTER>-</td>
343
344<td ALIGN=CENTER>-</td>
345</tr>
346
347<tr>
348<td>stratus (maritime)</td>
349
350<td ALIGN=CENTER>stma00</td>
351
352<td ALIGN=CENTER>-</td>
353
354<td ALIGN=CENTER>-</td>
355
356<td ALIGN=CENTER>-</td>
357
358<td ALIGN=CENTER>-</td>
359
360<td ALIGN=CENTER>-</td>
361
362<td ALIGN=CENTER>-</td>
363
364<td ALIGN=CENTER>-</td>
365</tr>
366
367<tr>
368<td>cumulus (cont., clean)</td>
369
370<td ALIGN=CENTER>cucc00</td>
371
372<td ALIGN=CENTER>-</td>
373
374<td ALIGN=CENTER>-</td>
375
376<td ALIGN=CENTER>-</td>
377
378<td ALIGN=CENTER>-</td>
379
380<td ALIGN=CENTER>-</td>
381
382<td ALIGN=CENTER>-</td>
383
384<td ALIGN=CENTER>-</td>
385</tr>
386
387<tr>
388<td>cumulus (cont., poll.)</td>
389
390<td ALIGN=CENTER>cucp00</td>
391
392<td ALIGN=CENTER>-</td>
393
394<td ALIGN=CENTER>-</td>
395
396<td ALIGN=CENTER>-</td>
397
398<td ALIGN=CENTER>-</td>
399
400<td ALIGN=CENTER>-</td>
401
402<td ALIGN=CENTER>-</td>
403
404<td ALIGN=CENTER>-</td>
405</tr>
406
407<tr>
408<td>cumulus (maritime)</td>
409
410<td ALIGN=CENTER>cuma00</td>
411
412<td ALIGN=CENTER>-</td>
413
414<td ALIGN=CENTER>-</td>
415
416<td ALIGN=CENTER>-</td>
417
418<td ALIGN=CENTER>-</td>
419
420<td ALIGN=CENTER>-</td>
421
422<td ALIGN=CENTER>-</td>
423
424<td ALIGN=CENTER>-</td>
425</tr>
426
427<tr>
428<td>fog</td>
429
430<td ALIGN=CENTER>fogr00</td>
431
432<td ALIGN=CENTER>-</td>
433
434<td ALIGN=CENTER>-</td>
435
436<td ALIGN=CENTER>-</td>
437
438<td ALIGN=CENTER>-</td>
439
440<td ALIGN=CENTER>-</td>
441
442<td ALIGN=CENTER>-</td>
443
444<td ALIGN=CENTER>-</td>
445</tr>
446
447<tr>
448<td>cirrus 1: -25&deg;C</td>
449
450<td ALIGN=CENTER>cir100</td>
451
452<td ALIGN=CENTER>-</td>
453
454<td ALIGN=CENTER>-</td>
455
456<td ALIGN=CENTER>-</td>
457
458<td ALIGN=CENTER>-</td>
459
460<td ALIGN=CENTER>-</td>
461
462<td ALIGN=CENTER>-</td>
463
464<td ALIGN=CENTER>-</td>
465</tr>
466
467<tr>
468<td>cirrus 2: -50&deg;C</td>
469
470<td ALIGN=CENTER>cir200</td>
471
472<td ALIGN=CENTER>-</td>
473
474<td ALIGN=CENTER>-</td>
475
476<td ALIGN=CENTER>-</td>
477
478<td ALIGN=CENTER>-</td>
479
480<td ALIGN=CENTER>-</td>
481
482<td ALIGN=CENTER>-</td>
483
484<td ALIGN=CENTER>-</td>
485</tr>
486
487<tr>
488<td>cirrus 3: -50&deg;C
489<br>(+ small particles)</td>
490
491<td ALIGN=CENTER>cir300</td>
492
493<td ALIGN=CENTER>-</td>
494
495<td ALIGN=CENTER>-</td>
496
497<td ALIGN=CENTER>-</td>
498
499<td ALIGN=CENTER>-</td>
500
501<td ALIGN=CENTER>-</td>
502
503<td ALIGN=CENTER>-</td>
504
505<td ALIGN=CENTER>-</td>
506</tr>
507</table>
508
509<li>
510All other files are stored in the subdirectory <b>OPAC31</b>. Here you
511can find the FORTRAN program and additional configuration and data files:</li>
512
513<ul>
514<li>
515<b>opac.f</b> is the FORTRAN program. It is used to calculate data which
516are not directly stored in the data base.</li>
517
518<li>
519<b>opac.cfg</b> contains all the microphysical information about the aerosol
520and cloud size distributions, the aerosol height profiles, the composition
521of aerosol types.</li>
522
523<li>
524<b>extback.dat</b> contains wavelength dependent extinction coefficients
525of the background aerosols, i.e. the free tropospheric aerosol, the stratospheric
526aerosol and the mineral aerosol in the desert dust layer. These values
527are needed for calculating optical depths.</li>
528
529<li>
530<b>solar.dat</b> contains information about the extraterrestrial solar
531flux. This is needed for calculations of spectrally weighted broadband
532extincion properties in the solar spectral range.</li>
533
534<li>
535<b>ter.dat</b> contains information about the terrestrial emission between
5368 &micro;m and 15 &micro;m for a temperature of 300 K. This is needed for
537calculations of spectrally weighted broadband extincion properties in the
538terrestrial spectral range.</li>
539
540<li>
541<b>wel.dat</b> contains wavelength information for the calculation of spectrally
542weighted extinction properties.</li>
543
544<br>&nbsp;
545<p>&nbsp;
546<br>&nbsp;
547<br>&nbsp;</ul>
548There are 2 subdirectories in directory <b>OPAC31</b>:
549<ul>
550<li>
551<b>input:</b> Each input file for opac.f, which contains data and parameters
552to be extracted from OPAC must be stored in a file in this directory. The
553program prompts you for the filename and automatically appends the extension
554".inp". As an example, the file <a href="opac.inp" <B>opac.inp</a> is provided.</li>
555
556<li>
557<b>result:</b> Here the results of your inquiry are stored. The given filename
558is used with the extension ".out". As an example, the file <a href="opac.out" <B>opac.out</a>
559belonging to <b>opac.inp</b> is provided.</li>
560</ul>
561
562<h3>
563<u>Using the program</u></h3>
564The purpose of the program is to mix optical properties of single cloud
565or aerosol components (stored for 1 particle/cm^3) to optical properties
566of clouds or aerosol types, which may consist of several components. It
567is also possible to calculate optical properties which are not stored in
568the data base. These are for instance the optical depth, the extinction
569ratio (extinction coefficient divided by mass), or quantities which are
570integrated over the solar or terrestrial wavelength range.
571<p>Before starting the program, you have to edit an input file in order
572to define, which information you want to extract and calculate from the
573data base. Since the program prompts you for the name of the input file,
574you can use copies of the example and default input file <a href="opac.inp" <B>opac.inp</a>.
575<p>The program is started by typing <b>opac</b> in the subdirectory
576<b>opac31</b>,
577if you used the compiler command shown above.
578<p>The results are stored in the subdirectory <b>result</b> in files, whose
579names consist of the input file name, but with the extension <b>.inp</b>
580replaced by <b>.out</b>.
581<p>If you have the feeling, that the instructions given in this file, together
582with the explanations in the OPAC paper <i><a href="../mitarb/heko97.html">(Hess
583et al., 1998)</a></i> are not sufficient, <a href="mailto:m.hess@lrz.uni-muenchen.de">please
584let us know</a>.
585<br>
586<hr>
587<address>
588This page was created by: <a href="http://www.lrz-muenchen.de/~uh234an/www/mitarb/mhess.html">Michael
589Hess</a></address>
590
591<br>update: 12. Mar. 1998</ul>
592
593</body>
594</html>
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