tated and tilted. The hodograph also has an interactive DOS-Based Rawinsonde Observation Upper-Air wind editing capability and allows manual input of key Soundin g Computer Program Available helicity parameters with instantaneous update of dis- Environmental Research Services of Matamoras, play data. RAOB has a vertical cross-section option, Pennsylvania, has released its first version of the which can plot from two to seven soundings in either rawinsonde observation (RAOB) upper-air sounding a time- or distance-based orientation. The cross sec- computer program. RAOB, a DOS-based program, tio n has 12 data analysis options, including uses both standard coded and raw rawinsonde data. termperatures, moisture variables, winds, and others. (Raw data is available from the National Climatic Data The cross section also has the capability to automati- Center as edited data.) In addition to automatically cally generate a complete interpolated sounding from reading coded data from most commercial data a point anywhere along the diagram's horizontal axis. sources, RAOB has complete data entry and editing All graphics can be printed. capabilities. Soundings are plotted on skew T or Emagram diagrams upon which several sounding For additional information about RAOB or for a parameters are alphanumerically displayed, while oth- demonstration version, contact Environmental Re- ers are graphically overlaid. Alphanumeric data dis- search Services, HC 78-Bo x 2355A, Matamoras, PA plays include hail size, surface gust potential, SWEAT, 18336; phone/fax: 717-491-4689; e-mail: 73053. TT, LI, K index, helicity, CAPE, EHI, and others. All 2010@CompuServe.Com. significant level data (LCL, CCL, LFC, and associated ELs) are listed, including the option to graphically plot America n Society for Testing and Materials positions on the sounding. Graphic overlays include The 1995 Johnson Conference on Performance relative magnitude depictions of icing, turbulence, Evaluation of Atmospheric Dispersion Models: How LLWS, RH, and others. The sounding's wet-bulb and Well Can the Effects of Chaos Be Characterized? will virtual temperature profiles can be plotted. Up to two be held 9-12 July 1995 at Johnson State College, other soundings can be overlaid on the original sound- Johnson, Vermont. This conference, sponsored by ing. The diagram format can be modified, including the American Society for Testing and Materials Com- options to choose pressure and temperature grid mittee D-22 on Sampling and Analysis of Atmospheres, intervals, automatic or manual temperature scaling, is open to all interested individuals. millibar of feet vertical grid, and others. Knowledgeable and expert individuals are expected to attend the program of seven informal sessions Each sounding is supported by several data listings spread over three days. The format is designed to with more than 100 original and calculated param- stimulate discussion. eters, of which most can be printed or saved to an For a free program booklet containing registration ASCII file. Cloud layers are automatically determined, and hotel information, contact George Luciw, ASTM, while a cloud menu allows manual input to refine icing 1916 Race St., Philadelphia, PA 19103-1187; phone: calculations. The user can interactively alter the 215-299-5571; fax: 215-299-2630. sounding's temperatures, dewpoints, or wind speeds For more information about the conference, con- and directions while all sounding display data, and tact John T. Snow, College of Geosciences, University icing or turbulence graphics are continually updated. of Oklahoma, 100 E. Boyd St., Ste. 710, Norman, All interactive sounding alterations can be saved to OK 73019-0628; telephone: 405-325-3101; fax: 405- file. RAOB has a standard hodograph display and a 325-3148; e-mail: email@example.com. three-dimensional trajectory diagram that can be ro- t x r \ 986 Vol. 76, No. 6, June 1995
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Jun 1, 1995
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