Livermore Regional Air Quality model (LIRAQ-1)

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The Livermore Regional Air Quality (LIRAQ) model is an Eulerian grid model developed for use in assessing the regional air quality of a region with temporally and spatially varying meteorology in complex terrain. The first implementation of this approach is embodied in the LIRAQ-1 model and is intended for use with either simple chemical systems or relatively inert pollutants. The basic model formulation is based on the conservation of mass equation integrated vertically from the surface to the base of an inversion layer, thereby creating a single layer model with a grid structure established in the two horizontal dimensions. Surface ... continued below

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Pages: 25

Creation Information

MacCracken, M.C. & Grant, K.E. October 1, 1975.

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Description

The Livermore Regional Air Quality (LIRAQ) model is an Eulerian grid model developed for use in assessing the regional air quality of a region with temporally and spatially varying meteorology in complex terrain. The first implementation of this approach is embodied in the LIRAQ-1 model and is intended for use with either simple chemical systems or relatively inert pollutants. The basic model formulation is based on the conservation of mass equation integrated vertically from the surface to the base of an inversion layer, thereby creating a single layer model with a grid structure established in the two horizontal dimensions. Surface pollutant concentrations are related to vertical average concentrations using a logarithmic profile. Atmospheric transport, inversion height, source emissions, and topography are all prescribed. Data for the San Francisco Bay Area obtained during 1973 have been used in validation studies. (auth)

Physical Description

Pages: 25

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Dep. NTIS

Source

  • 1. AMS conference on regional and mesoscale modeling analysis and prediction, Las Vegas, Nevada, USA, 6 May 1975

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  • Report No.: UCRL--76198
  • Report No.: CONF-750533--7
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 4133133
  • Archival Resource Key: ark:/67531/metadc865573

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Creation Date

  • October 1, 1975

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 18, 2016, 1:40 p.m.

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MacCracken, M.C. & Grant, K.E. Livermore Regional Air Quality model (LIRAQ-1), article, October 1, 1975; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc865573/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.