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B -- AIRBORNE MEASUREMENTS IN SUPPORT OF FIRE ARCTIC CLOUD EXPERIMENT SOL SS280 POC Linda P. Fitzgerald, Procurement Analyst, Phone (757)-864-2461, Fax (757) 864-7898, Email L.P.FITZGERALD@larc.nasa.gov WEB: Click here for the latest information about this notice, http://procurement.nasa.gov/EPS/LaRC/date.html#SS280. E-MAIL: Linda P. Fitzgerald, L.P.FITZGERALD@larc.nasa.gov. NASA/LaRC is hereby soliciting information for potential sources for Airborne Measurements in Support of the FIRE Artic Cloud Experiment. The contractor shall obtain airborne measurements of the cloud microphysical, radiation, dynamic/thermodynamic, and chemical properties of the Arctic atmosphere, in support of the FIRE (First ISCCP (International Satellite Cloud Climatology Project) Regional Experiment) Arctic Cloud Experiment. The goal of FIRE is to study the impact of Arctic clouds on radiation exchange between the surface, atmosphere, and space; and the influence of surface characteristics (including sea ice and leads) on these clouds. Several aircraft, satellites, and surface-based instruments will make coordinated measurements of the clouds and radiation over the Beaufort Sea in spring 1998. FIRE will perform both remote and in situ aircraft measurements of a variety of cloud, surface, and radiation parameters over the sea ice, leads, and ice melt. The NASA ER-2 will perform downlooking remote measurements; the University of Washington (UW) C-580, National Center for Atmospheric Research (NCAR) C-130, and a third aircraft will perform in situ measurements of the clouds and radiation. This source s sought notice is to seek proposals for atmospheric measurements as the third in situ aircraft. 1. The contractor shall perform the following set of airborne measurements of the cloud microphysical, radiation, dynamic/thermodynamic, and chemical properties of the Arctic atmosphere (priority 1 = critical; 2 = important; 3 = desirable): No., Priority, Measurement: 1.0 Microphysics: 1.1, 1, Ice crystal concentration, ice water content, size distribution, ice nuclei information (chemistry) using counterflow techniques, 1.2, 1, Phase separation between ice and liquid, 1.3, 1, Phase change of ice, 1.4, 1, liquid water content and total water content using Nevzorov hot wire probe, 1.5, 1, Droplet concentration, and droplet spectra (0.3-45 microns), 1.6, 1, Ice crystal concentration, ice crystal spectra, shape >3 microns, 1.7, 1, Shape, ice crystal concentration, ice water content > 0.01 g m-3, 1.8, 2, Shape, ice crystal concentration, scattering phase function > TBD microns, 1.9, 1, Aerosol concentration, aerosol spectra (0.13-3 microns), 1.10, 1, Droplet concentration; aerosol concentration, aerosol spectra (0.13-3 microns), 1.11, 1, Cloud condensation nuclei and percent super saturation > TBD microns, 1.12, 1, Condensation nuclei > 3 microns, 1.13, 1, Condensation nuclei > 15 microns, 1.14, 1, Aerosol size distribution (5-200 microns) 2.0 Radiation: 2.1, 2, Reflectance at 4 channels similar to Landsat channels, 2.2, 3, Reflectance at 2 channels, U. Arizona Radiometer, 2.3, 1, Lidar backscatter coefficient, reflectance (up and down) (0.53 and 1.06 microns), 2.4, 1, Volume light scattering coefficient, 2.5, 3, Ultraviolet radiative fluxes, 2.6, 1, Visible extinction coefficient (0.2-0.9 microns), 2.7, 1, Infrared radiative fluxes (up and down), 2.8, 2, Shortwave radiative fluxes (up and down) 3.0 Dynamics/Thermodynamics: 3.1, 1, 3-dimensional wind components for flux turbulence, 3.2, 1, Temperature, dew point temperature, horizontal winds, relative humidity profiles, 3.3, 3, Temperature and dew point profiles using dropsondes, 3.4, 1, Temperature using reverse flow techniques, 3.5, 2, Surface temperature, 3.6, 2, Dew point temperature, 3.7, 1, Dew point temperature, frost point temperature, mixing ratio, latent heat fluxes; phase (microphysics) using Lyman-Alpha techniques 4.0 Chemistry: 4.1, 2, Concentration of O3 and SO2, 4.2, 2, Concentration of gas-phase Hg, 4.3, 1, Inorganic and organic ions, black carbon, trace metals, and total organic carbon using filter and flowmeter techniques, 4.4, 1, Size segregated inorganic and organic ions using impactor and flowmeter techniques, 4.5, 2, Organohalogens using flowmeter techniques, 4.6, 1, Total organic carbon, speciated organics using flowmeter techniques The contractor shall obtain the measurements during the period April 7 to May 7, 1998, in the vicinityof the National Science Foundation s Surface Heat Budget of the Arctic (SHEBA) ice station (which is expected to be around 75N and 137W depending on the drift of the ice flow) and possibly the Department of Energy s Atmospheric Radiation Measurements (ARM) site at Barrow, Alaska. The contractor shall operate for approximately 85 flight hours, including transit to and from the operations base of its choice. Research flights shall consist of 5-6 hours in duration. Research flight patterns shall be designed and performed as mutually agreed with the FIRE Science Team. . No solicitation exists; therefore, do not request a copy of the solicitation. Interested offerors/vendors having the required specialized capabilities to meet the above requirement should submit a capability statement of 3-5 pages or less indicating the ability to perform all aspects of the effort described herein. Please advise if the requirement is considered to be a commercial or commercial-type product. A commercial item is defined in "Note A". N/A This synopsis is for information and planning purposes and is not to be construed as a commitment by the Government nor will the Government pay for information solicited. Respondents will not be notified of the results of the evaluation. Respondents deemed fully qualified will be considered in any resultant solicitation for the requirement. Firms responding should indicate whether they are a socially or economically disadvantaged business firm, an 8(a) firm, a small business, and/or woman-owned business. The Government reserves the right to consider a small business or 8(a) set-aside based on responses hereto. All responses shall be submitted to identified point of contact no later than 12/19/97. The technical contact for this effort is Dave McDougal at (757) 864-5832. In responding reference -- SS280. Any referenced numbered notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nnotes.htm . (0342)

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