SOURCES SOUGHT
B -- SPECIAL SCIENTIFIC STYDY
- Notice Date
- 6/29/2007
- Notice Type
- Sources Sought
- NAICS
- 541710
— Research and Development in the Physical, Engineering, and Life Sciences
- Contracting Office
- Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), Acquisition and Grants Office, SSMC4 - Room 7601/OFA61 1305 East West Highway, 7th Floor, Silver Spring, MD, 20910, UNITED STATES
- ZIP Code
- 00000
- Solicitation Number
- NEED15205
- Response Due
- 7/15/2007
- Archive Date
- 7/30/2007
- Description
- The U. S. Department of Commerce/National Oceanic Atmospheric Administration/NESDIS, intends to negotiate with the Texas A & M University System , College Station TX. On a sole source basis, under the authority of 41 U. S.C. 253 ( c ) ( 1 ) , only one responsible source. It is believed that only this entity can satisfy the agency requirement to provide scientific and technical expertise services for the Enhancement of the Capabilities of Joint Center for Satellite Data Assimilation (JCSDA) for Simulating Radiative Transfer in Ice-cloudy Atmospheres. This task will provide science supports to JCSDA in radiative transfer modeling by integrating the optical properties of ice crystals, computed from advanced light scattering models, into the CRTM. The primary objective is to improve the accuracy of the CRTM for simulating radiative transfer in an ice-cloudy atmosphere. The Texas A & M University (TAMU) have developed state-of-the-art light scattering models for computing the single-scattering properties of nonspherical ice crystals. The TAMU team shall develop the optical properties (phase function, single-scattering albedo, and extinction efficiency) of ice crystals for specific applications to CRTM in terms of wavelengths and data format. The TAMU team will truncate the phase function and adjust other relevant optical properties for application to CRTM in the case of ice-cloudy atmospheres. The CRTM can account for the real atmospheric temperature and water vapor, and the vertical distribution of the cloud and aerosol. CRTM will be of great utility to the research community, This will be divided in to 2 ( TWO) . Stage 1 Task 1. At the solar and IR wavelengths involved in CRTM, compute the phase functions, single-scattering albedo, and extinction efficiency of individual hexagonal ice columns. Task 2, Average the single-scattering properties (i.e., the phase functions, single-scattering albedo, and extinction efficiency) obtained in Task 1 for various size distributions. For each size distribution, the effective particle size will be computed. The bulk optical properties of ice clouds will be specified as functions of the effective particle size. Task 3. Truncate the delta-transmission and diffraction peak in the phase function in terms of Legendre polynomials: and scale the relevant extinction coefficient and single-scattering albedo on the basis of the similarity principle. Task 4. Document data sets and computational algorithms, and facilitate integration of the resulting optical properties of ice clouds into the CRTM. Stage 2 Task 5 with the experience gained in stage one, repeat Tasks 1-4 for a mixture of various ice crystal habits. Task 6, After the delivered data set are tested within the CRTM frame, improve/refine/finalize the delivered data sets. This procurement is being conducted per FAR Part 13 Simplified Acquisition Procedures (NTE $100K) NAIC code 611310. Interested persons may identify their interest and must demonstrate their capability in order to be considered for this opportunity. This is not a request for Competitive proposal No competitive solicitation is planned, information submitted in response to this notice will be used solely to determine whether or not to open up for competitive procedures. Any questions regarding this notice must be submitted in writing to the attention of Sally Huber, Email sally.j.huber@noaa.gov
- Place of Performance
- Address: 6001 Tamu, College Station TX
- Zip Code: 77843
- Country: UNITED STATES
- Zip Code: 77843
- Record
- SN01331385-W 20070701/070629220429 (fbodaily.com)
- Source
-
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