SOLICITATION NOTICE
B -- FOUR-DIMENSIONAL DATA ASSIMILATION
- Notice Date
- 12/4/2003
- Notice Type
- Solicitation Notice
- Contracting Office
- Environmental Protection Agency, Ord Service Center/Nerl, Rtp Procurement Operations Division, Research Triangle Park, NC 27711
- ZIP Code
- 27711
- Solicitation Number
- RFQ-RT-04-00076
- Response Due
- 1/6/2004
- Archive Date
- 2/6/2004
- Point of Contact
- Point of Contact, Antonio Leathers, Purchasing Agent, Phone (919) 541-2312
- E-Mail Address
-
Email your questions to U.S. Environmental Protection Agency
(leathers.antonio@epa.gov)
- Description
- NAICS Code: 541990 NAICS Code: 541990 THIS IS A COMBINED SYNOPSIS/SOLICITATION FOR COMMERCIAL ITEMS PREPARED IN ACCORDANCE WITH THE FORMAT IN SUBPART 12.6, AS SUPPLEMENTED WITH ADDITIO0NAL INFORMATION INCLUDED IN THIS NOTICE. THIS ANNOUNCEMENT CONSTITUTES THE ONLY SOLICITATION. QUOTES ARE BEING REQUESTED AND A WRITTEN SOLICITATION WILL NOT BE ISSUED. The solicitation number is RFQ-RT-04-00076 and the solicitation is being issued as a request for Quotation (RFQ). The solicitation document and incorporated provisions and clauses are those in effect through Federal Acquisition Circular 01-16. The associated North Industry Classification System (NAICS) is 541990 and the business size standard is $6.0 million. Full and open competition procedures will be utilized. A firm fixed price purchase order using Simplified Acquisition Procedures is anticipated to result from the award of this solicitation. This procurement is for the development of four-dimensional data assimilation in weather research and forecast model for air quality applications. STATEMENT OF WORK: Background: The Community Multiscale Air Quality (CMAQ) Model is EPA's principal numerical air quality modeling tool for scientific and policy analyses for tropospheric ozone, fine particulate matter, acid deposition, and visibility. This model derives its meteorological input from the NCAR/Penn State Mesoscale Model Version 5 (MM5), itself a community model for weather forecasting and analysis. To achieve a tight coupling between the air quality and meteorological models, the CMAQ model uses the same parameters of the grid definition and map projection as the MM5 model. Thus there is a strong dependence of the CMAQ model on MM5 for meteorological input. Since most applications of the CMAQ model by EPA and the states involve application of the modeling system for a historical episode, there was no need to use the MM5 in a "weather forecast mode", but rather in a retrospective mode. Therefore EPA supported the development of a four-dimensional data assimilation (FDDA) technique for MM5 (actually an earlier version in the MM series of models), known as Newtonian nudging, in which observed surface and aloft meteorological observations are used to continuously "nudge" the solutions of the MM5 model equations throughout the entire model simulation (Stauffer and Seaman, 1990, 1994). This provides more accurate meteorological fields for the air quality model to use. In recent years, as the MM series of models has progressed to Version 5, a decision was made by NCAR that makes the successor model to MM5 a new model called the Weather Research and Forecast (WRF) Model. Therefore there will be no MM6 to couple with the EPA CMAQ model, but rather there will be a WRF model to couple with CMAQ. This new model is also to be a community model, maintained by NCAR. Beta-test versions of the model are now available and are being used throughout the mesoscale modeling community. At the current time, plans for the inclusion of Newtonian nudging in the WRF model are vague. Other data assimilation techniques that are less useful for air quality purposes, and more applicable to weather forecasting applications, are being included in the WRF model system. As with the predecessor MM model series, EPA has an interest in including Newtonian nudging FDDA in the successor model, WRF, for linking this model to the CMAQ model for air quality applications. Without this FDDA technique in WRF, EPA would be in a compromised position for application of its principal air quality modeling system. Purpose: The purpose of this procurement is to acquire the senior meteorologist servicesto modify and test the WRF model available from NCAR with the existing FDDA Newtonian nudging techniques available in the MM5 model. The resulting modified WRF model, and any required preprocessors, would then be made available to NCAR as an addition to its community model. The resulting modified WRF model would also be available to EPA, the states, and others to couple with the CMAQ model for air quality applications. In the initial stages of this work, the contractor will acquire the most current versions of the WRF and MM5 modeling systems from NCAR (available at http://wrf-model.org/ and http://www.mmm.ucar.edu/mm5/mm5-home.html, respectively). An initial analysis of the WRF model code is to be performed as to the application of "analysis" and "observations" nudging in WRF. Analysis nudging refers to the assimilation of larger scale analyzed meteorological fields into WRF model simulations, while observations nudging refers to the assimilation of single point or profile measurements into (usually fine-scale) model simulations. Both types of nudging are available now in the MM5. The contractor will study how these techniques have been implemented in the MM5 model in advance of implementation in the WRF model. The resulting code in WRF is to be tested on a historical application period, to be specified by the EPA Project Officer, and documentation of the changes to the WRF system to enable analysis and observations Newtonian nudging FDDA is to be prepared. The application/demonstration of the revised WRF code should include at least three domains of different scale (e.g., continental U.S., northeast U.S., NYC or Boston area) and different horizontal grid cell sizes (e.g., 32km, 8km, and 2km). Task: The Contractor shall: 1) Acquire and review the model code for analysis and observations Newtonian nudging FDDA in the most current available version of the MM5 meteorological model; 2) Acquire and review the code and coding conventions in the most current available version of the WRF meteorological model; especially those sections that will need to be modified for adding analysis and observations Newtonian nudging FDDA; 3) Prepare a written plan for the addition of analysis and observations Newtonian nudging FDDA in the WRF model; 4) Implement the code modifications needed in the WRF model and its preprocessors for the addition of Newtonian nudging; 5) Consult with the EPA Project Officer as to the selection of a historical episode for testing, and run the WRF model system including Newtonian nudging FDDA for this period. The application should include at least three one-way nested model domains, and the use of analysis and observations nudging as appropriate for the grid resolutions. Run control simulations without FDDA on the same episode, for comparison purposes; and 6) Prepare a report documenting the overall approach and coding modifications made to the WRF model system for adding analysis and observations Newtonian nudging FDDA, as well as the results of testing and evaluation on the historical episode for simulation. Deliverables: 1) Workplan and algorithm outline for the addition of analysis and observations Newtonian nudging FDDA in the WRF meteorological model(Due 3 months after contract award); 2) Progress report on Task 4: Implementation of code modifications in WRF model and processors for analysis and observations Newtonian nudging FDDA (Due 6 months after contract award); 3) Revised WRF model system computer code and in-line documentation implementing analysis and observations Newtonian nudging FDDA (Task 4) (Due 10 months after contract award); and 4) Final report describing the development and testing of the analysis and observations Newtonian nudging FDDA scheme in the WRF model (Tasks 5,6) (Due 14 months after contract award). Government Responsibilities: The Project Officer shall make available to the Contractor, the web sites for access to the latest versions of the MM5 and WRF meteorological models. The Project Officer shall provide written comments to the Contractor on the final scientific report within 10 days of receipt. Period of Performance: 14 (fourteen) months from effective date of contract award. Selection Criteria: EPA will select a vendor based upon cost and technical factors so that the Agency receives the best value for this purchase, with technical factors being significantly more important than cost. The requirements for the selected contractor are that the offeror: (1) have experience in the modeling of mesoscale meteorology and four-dimensional data assimilation; (2) have documented prior experience in using the MM5 and WRF mesoscale meteorological models; (3) have documented prior experience in developing analysis and observations Newtonian nudging FDDA in mesoscale meteorological models; and 4) Past Performance: Please provide contact information for at least three recent customers (within the past three years) for similar work. The following FAR provisions shall apply to this solicitation: 52-212-1, Instructions to Offerors--Commercial Items. All offerors are to include with their offer a completed copy of provisions 52.212-3, Offeror Representations and Certifications--Commercial Items. The following FAR clause applies to this acquisition: 52.212-4, Contract Terms and Conditions--Commercial Items. The following additional FAR clauses which are cited in Clause 52.212-5 are applicable to the acquisition: 52.222-21, Prohibition of Segregated Facilities; 52.222-26, Equal Opportunity, 52.222-35, Affirmative Action for Special Disabled and Vietnam ERA Veterans; 52.222-36 Affirmative Action for Handicapped Workers; 52.222-37, Employment Reports on Special Disabled Veterans and Veterans of the Vietnam Era; 52.222-19, Child Labor-Cooperation with Authorities and Remedies; 52.225-1, Buy America Act--Balance of Payments Programs-Supplies; 52.232-34, Payment by Electronic Funds Transfer. COMMERCIAL BUY CLAUSES AND FORMS which are provided for your convenience at EPA website: http://www.epa.gov/oam/rtp-cmd. Please submit to Antonio Leathers , @ (919)541-1075 or e-mail: leathers.antonio@epa.gov. All offers are due by January 06, 2004 12:00pm, EDT.
- Record
- SN00481180-W 20031206/031204212521 (fbodaily.com)
- Source
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