Central California Ozone Study (CCOS) - Desert Research Institute

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CCOS Field Operations Plan Version 2: 5/31/00 Table 5.3-2 FTP Transmittal file names Position Indicator Description Valid Codes 1 C Investigator code 2,3 DD Data type code 4,5 MM Month code JA,FE,MR,AP,MY,JN,JL,AU,SE,OC,NO,DE 6,7 YYYY Year code Year file was created 8 A Averaging interval A - 3 hour B - 6 hour C - 12 hour D - 24 hour H - 1 hour J - Jumps (every other hour) V - Hourly but varies, possibly less than 24 measurements per day I - Instantaneous (
CCOS Field Operations Plan Version 2: 5/31/00 6.0 EMISSION INVENTORY DEVELOPMENT AND EVALUATION For a study covering as large of an area as CCOS, the development of the emission inventory will be a major effort. In addition to the size of the study domain, the emission inventory required for modeling is more detailed than the routine summer seasonal emission inventory. The emission inventory (EI) needed to support the CCOS modeling will be a series of day-specific, hourly, gridded emission inventories that cover each day of the ozone episodes captured during the field study. To help coordinate the EI development effort, the Emission Inventory Coordination Group (EICG) has been established to determine the process for preparing the emission inventories needed to support air quality modeling for CCOS. The EICG is chaired by Linda Murchison and Dale Shimp of the ARB. Participants in the group include many local air districts, several local councils of government, Caltrans, California Energy Commission, and the ARB. Local air districts participating to date include San Joaquin Valley Unified APCD, Bay Area AQMD, Sacramento Metropolitan AQMD, Mendocino County AQMD, Northern Sierra AQMD, Yolo-Solano AQMD, Placer County APCD, San Luis Obispo County APCD, and Monterey Bay Unified APCD. Other local air districts will also be participating. There are about 30 districts in the CCOS modeling domain. Each local air district in the state updates a portion of the emission inventory for their area. An emission inventory is needed to estimate emissions for each day that will be modeled in the summer of 2000. Special effort is being made to assist smaller districts that have limited staffing resources. The following subsections the approach and schedule for developing and compiling the modeling emission inventory, and the specific studies that have been funded in order to support this effort for CCOS. 6.1 “Fast Track” and Final Modeling Inventory Development Process A gridded emission inventory is a critical input to photochemical air quality models. Historically, modeling emission inventories have been criticized for using incomplete dayspecific data and for lagging behind the development of other data such as meteorological and air quality data that are collected in air quality studies. This subsection describes a two-track approach. To make a modeling inventory available in a shorter time frame, the EICG is taking a two-tier approach to the development of the modeling emission inventory that will provide modelers with a “fast track” inventory for preliminary modeling. This inventory will be followed by a more detailed modeling inventory that will incorporate all of the day-specific information collected during the field study. The districts and ARB will prepare a seasonal emissions inventory for 1999 during calendar year 2000. The 1999 annual emissions for point sources will be forecasted to 2000 and then spatially and temporally distributed to create a modeling inventory for a summer weekday. Area source emissions for 1999 will also be forecasted to 2000. The forecasted emissions will be spatially distributed using the spatial surrogates used in the 1994 Ozone State Implementation Plans and temporally distributed to represent a summer weekday. On-road mobile sources will also be gridded based on the 1994 Plans. Modelers will use this “fast track” inventory to begin Chapter 6: EMISSION INVENTORY DEVELOPMENT 6-1
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Central California Ozone Study (CCO
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CCOS Field Operations Plan (DRAFT)
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Page 83 and 84: CCOS Field Operations Plan Version
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Page 167 and 168: Appendix A CCOS Contact List (a) Re
Page 170 and 171: APPENDIX B Air Quality Monitoring S
Page 172 and 173: APPENDIX B (continued) Air Quality
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Page 177 and 178: C. MEASUREMENT METHODS Field monito
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Page 183 and 184: The ozone/ethylene chemiluminescenc
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C.5 Supplemental Measurements of Ox
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from the collection surface without
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hydrocarbons takes place. No Perma-
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Tenax samples are usually analyzed
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λ 2 j = ∫ F λ ×σ λ × φ λ
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A sample of solar radiance data inc
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TABLE OF CONTENTS S0 Sites S1 Sites
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Lambie Road (S0) Address: Location:
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Sloughhouse (S0) Address: Fire Stat
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San Martin (S0) Address: San Martin
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Kettleman City (S0) Address: Locati
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McKittrick (S0) Address: Location:
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Red Hills (East County Monitoring S
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Sutter Butte (S1) Address: Location
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White Cloud (S1) Address: 26533 Sta
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Bodega Bay (S1) Address: Location:
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San Leandro Address: Location: Coor
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. Summary of Responsibilities: Equi
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New Facilities: One phone line for
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New Facilities: None Summary of Res
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Turlock Existing Equipment: Observa
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Summary of Responsibilities: Equipm
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C 2 - C 12 HC from canisters HC Can
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Coefficient of Haze RAC Gas Calibra
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New Facilities: Small trailer, powe
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Observable Instrument Installer O 3
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New Facilities: 8’ x 10’ traile
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Observable Instrument Installer NO/
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Existing Monitoring Equipment (vend
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C 8 - C 20 HC from TENAX DRI Multi-
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Parlier Existing Equipment: Observa
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Camp Roberts (Other) Address: Locat
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Appendix D-2 Supplemental Air Quali
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Bella Vista Bella Vista Water Distr
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South View from Front Gate Southwes
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San Martin San Martin Shelter with
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South View Southwest View West View
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Sutter Butte
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San Leandro
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Bruceville
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west view northwest view
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South View West View
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South View West View
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Pacheco Pass Pacheco Pass Site Nort
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Arvin North View Northeast View Eas
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Sunol Sunol Site, North View East V
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Southwest View West View
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Parlier Instrument Shelter North Vi
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Shasta Lake North View East View So
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