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Vl 59, Number 11, Nvember 1978 public plicy affairs Beginnings f the Natinal Climate Prgram E. S. Epstein 1402 Natinal Climate Prgram A c t C n f e r e n c e Reprt 1405 articles Messcale Clud Patterns Revealed by Apll-Syuz Phtgraphs P. G. Black 1409 Areal Parameters f the Sea Breeze and Its Verticle Structure in the Bstn Basin J. P. Barbat 1420 Great Histrical Events That Were Significantly Affected by the Weather: 3, The Cld Winter f 1657-58, The Swedish Army Crsses Denmark's Frzen Sea Areas J. Neumann 1432 Editr, fcus n frecasting Kenneth C. Spengler Technical Editr, J. E. Caskey, Jr. bjective 12 h Precipitatin Frecasts Using a Single Radisnde L. M. Druyan and Y. Sant Educatinal Affairs Editr, wen E. Thmpsn Fcus n Frecasting Frederick Sanders crrespndence Editr, n the Anistrpy f Diffuse Slar Radiatin L B. McArthur News Editr, Eileen M. Blum Cpy Editr, Reine Rsenbaum Editrial Assistant, Meetings Editr, Assistant Meetings Summary Twila A. Bmbard F BULLETIN LGICAL SCIETY is THE the 1443 Internatinal Cnference n Man's Impact n Climate: Welcming Address Editr, The fficial METER- rgan f the Sciety, devted t editrials, survey articles, prfessinal and membership news, annuncements, and Sciety activities. Editing and publishing are under the directin f Kenneth C. Spengler, Executive Directr. Members are encuraged t send infrmatin t be cnsidered fr publicatin. Send fur cpies f each manuscript (text and illustratins). Fr guidance n preparatin and style, see "Infrmatin fr Cntributrs" n inside cvers f a recent AMS research jurnal. AMS fficers and Cuncilrs: President, Gerge P. Cressman; President-Elect, Chester W. Newtn; Executive Directr, Kenneth C. Spengler; Secretary-Treasurer, David F. Landrigan; Past Presidents, Charles L. Hsier, Jr., and Werner A. Baum; and Cuncilrs: Bernice Ackerman, William D. Bnner, James P. Bruce, Francis S. Jhnsn, Albert J. Kaehn, Jr., Ry L. Leep, Jr., Margaret A. LeMne, Frederick P. stby, Jr., Nrman A. Phillips, Frederick Sanders, Rbert W. Stewart, Verner E. Sumi, Jhn E. Wallace, Rbert M. White, Jay S. Winstn. Published mnthly by the American Meterlgical Sciety at 45 Beacn St., Bstn, Mass. 02108. Secnd-class pstage paid at Bstn, Mass., and at additinal mailing ffices. Subscriptin price t members is included in annual dues ($20 per year). Subscriptin price t nnmembers is available n request; single issues are $10 each. Address all business cmmunicatins, purchase rders, and inquiries t the Executive Directr, American Meterlgical Sciety, 45 Beacn St., Bstn, Mass. 02108 (617-227-2425). W. Bach 1444 W. Bach and R. Rtty Cnference n Sierra Nevada Meterlgy AMERICAN 1442 meeting reviews Evelyn Mazur Lilly G. Alb and J. E. Hay Isentrpic Intrduced by Gibbs? Jan Urdang Advertising, 1438 1445 W. T. Smmers 1450 special news features Air Weather Service Cmmand Changes 1452 Presentatin f the 1978 Carl-Gustaf Rssby Research Medal.. 1455 prgrams 14th Cnference n Agriculture and Frest Meterlgy and Furth Cnference n Bimeterlgy 1491 12th Technical Cnference n Hurricanes and Trpical Meterlgy ]52Z annuncements.... bk reviews letter t the editr news and ntes crrigenda AMS annunces undergraduate awards and schlarships... abut ur members necrlgy news frm ur chapters 1408 1456 1461 1462 1464 1465 1466 1468 1471 at AMS headquarters candidates fr CCM AMS ntice lists f new members calendar f meetings cntents f AMS jurnals.... crpratin members prfessinal directry index t advertisers 1474 1476 1476 1477 1478 1552 1556 1558 1568 Cver phtgraphs: These all-sky camera phtgraphs (tp) and their crrespnding electrnic density slices giving 32 levels f equal light intensity (bttm) cntribute an aesthetic tuch t this issue. The phts n the left are fr a clear sky cnditin, thse n the right fr an vercast sky cnditin. Fr a discussin f the scientific significance and ther details, see crrespndence by McArthur and Hay, which begin n page 1442. Cpyright 1979, American Meterlgical Sciety. Permissin t use figures, tables, and brtef excerpts frm this jurnal in scientific and ^ v 1? * * is hereby granted prvided the surce is acknwledged. Any use f material in this jurnal that is determined t be "fair use" under Sectin 107 r that satisfies the cnditins specified in Sectin 108 f the U.S. Cpyright Law (17 USC, as revised by P L. 94-553 des nt require the d nt bear their wn separate cpyright ntices either are in the public dmain r are U.S. Gvernment wrks fr which cpyright prtectin is nt available. The cde and cpyright ntice at the bttm f the first page f an item indicate that if the cpier pays the stated per-cpy fee thrugh the Cpyright Clearance Center Inc P Bx 8891 Bstn, Mass. 02114, cpies f the item may be made fr persnal use r fr internal use f an rganizatin; ther kinds l cpying are" nt permitted under this arrangement. Republicatin, systematic reprductin, and ther uses f any material in this jurnal, unless exempted by the abve statements, require permissin r license frm the American Meterlgical Sciety.