Evaluation of the URM,UAM-V, UAM-IV, and ROM2.2 photochemical models over lower Lake Michigan for two 1991 LMOS oxidant episodes
- Alpine Geophysics, Covington, KY (United States)
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
This paper summarizes ongoing work, aimed at helping the modeling and regulatory communities move toward the use of more reliable and modern regional modeling methods for ozone attainment demonstrations. The authors describe efforts to compare the EPA`s current regulatory models with two state-of-science regional models. In the oral presentation of this paper, the authors will provide results of the comparative model performance evaluation of four photochemical models using Lake Michigan Ozone Study (LMOS) database, among the most extensive modeling sets available. The two base case ozone episodes in use are 26--28 June 1991 and 17--19 July 1991. The four models being evaluated with the LMOS database include the EPA Urban Airshed Model (UAM-IV), the EPA Regional Oxidant Model (ROM2.2), URM, and the Lake Michigan Air Directors Consortium (LADCo) version of the UAM-V. The formulation, use and limitations of the EPA guideline models (UAM-IV and ROM2.2) are discussed extensively elsewhere (see, for example, Tesche et al., 1992; Possiel et al., 1991). Here the authors focus on two of the current state-of-science models--URM and UAM-V. In a companion paper (Tesche et al., 1996), the authors discuss comparative evaluations underway with the URM, SAQM, and UAM-IV models over southern California using the intensive Southern California Air Quality Study (SCAQS-87) data base.
- OSTI ID:
- 422972
- Report Number(s):
- CONF-960127--
- Country of Publication:
- United States
- Language:
- English
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