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H -- DETERMINATION OF THE ROLE OF NITROUS ACID AND THE NITRATE RADICAL IN ATMOSPHERIC OXIDATION PROCESSES UNDER NIGHTTIME AND DAYTIME CONDITIONS SOL NRMAB000000002JW DUE 102799 POC Jacqueline Wright (303) 497-5282, FAX (303) 497-3163 E-MAIL: NOAA; MASC Acquisitions Management, Brenda.S.Summers@noaa.gov. The National Oceanic and Atmospheric Administration (NOAA) Aeronomy Laboratory (AL), has a requirement to award on a sole source basis to the University of California, Los Angeles to perform the following task. Perform analysis of absorption spectra acquired by two research grade differential absorption spectroscopy (DOAS) instruments during the 1999 Southern Oxidants Study field campaign in Nashville, Tennessee. Data were collected by Dr. Jochen Stutz and co-workers of UCLA over a one-month period at two sites during the field campaign. Utilize the resulting concentration data to determine the role of nitrous acid and the nitrate radical in atmospheric oxidation processes under both daytime and nighttime conditions. The result will be reported in a peer-reviewed scientific journal within two years of this award. Dr. Stutz and his colleagues at UCLA have unique capabilities that make them the ideal candidates to perform this task. Since the UCLA group made the measurements they are intimately familiar with the data and the manner in which it was collected and therefore in the best position to perform the analysis. Dr. Stutz has made similar measurements at various locations around the world and has an extensive record of peer-reviewed publication in this area of research. There is no bid package available. This announcement/solicitation is being issued under the Simplified Acquisition Procedures, FAR Part 13 (NTE $100,000.00). The award decision will be based upon the best value to the Government, with technical merit and past performance being significantly more important than price. Terms and Conditions and agency level protest procedures are referenced at http://netsite.esa.doc.gov.oam. JACQUELINE WRIGHT, Purchasing Agent. Posted 10/13/99 (D-SN391144). (0286)

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