Central California Ozone Study (CCOS) - Desert Research Institute

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CCOS Field Operations Plan Version 2: 5/31/00 Table 3.3-1 Chronology of Daily Forecast and IOP decisions Time (PDT) Daily Forecast and Decision-Making Activities 0200-0300 Download CCOS supplemental air quality site data (DRI – Bill Coulombe) 0800 Post summary of CCOS supplemental air quality data for the previous day at www.dri.edu/projects/CCOS (DRI – Bill Coulombe) 1000-1200 Flight crew e-mail plots of ozone soundings from designated spiral locations (Granite Bay, Livermore, Delta region, Fresno, and Bakersfield) from previous day’s flights and report operational status for next day to Eric Fujita, CCOS field manager (ericf@dri.edu, 775/674-7084). 1000-1200 Measurement Groups and Field Operators report operational results of previous day and status for next day to Eric Fujita (ericf@dri.edu, 775/674-7084). 1300-1400 Review operational status (DRI – Eric Fujita) 1400-1425 Forecast team conference call to prepare daily meteorological and air quality forecasts. 1430-1450 Management team conference call to review operational status, meteorological forecast, current ozone concentrations, IOP episodes to date. 1500 Post IOP decision on message machine and ARB web site (http://www. arb.ca.gov/themis/forecast_iop.doc) and voicemail at (916/324-1953). Decision/Definition No-go: condition unfavorable for high ozone within next two days. Go for Alert: conditions becoming favorable for high ozone within next three days. Measurements groups should be prepared to begin intensive operations in two days Go for Stand-by: conditions favorable for high ozone within next two days. Prepare for field operations. Go for Confirmation: Begin intensive operations at 0000 PDT the following day. End IOP: Cease all intensive operations today at 0000 PDT. Cancel IOP: Cease all intensive operations immediately. Type of IOP Type 0: Ramp-up day Type 1: Coastal Day Type 2: Inland Day (SJV, if able to distinguish from SV) Type 3: Inland Day (SV, if able to distinguish from SJV) Chapter 3: FORECAST PROTOCOL 3-8
CCOS Field Operations Plan Version 2: 5/31/00 4.0 QUALITY ASSURANCE This section provides a summary of planned quality assurance tasks/activities for CCOS and delineates the responsibilities of the quality assurance team. The purpose of quality assurance (QA) is to provide a quantitative estimate of the uncertainty of the measurements through estimates of the precision, accuracy (or bias), and validity. In addition, QA ensures that the procedures and sampling methods used in the study are well documented and are capable of producing data that meet the specifications of the study. The QA team reviews the investigators' standard operating procedures (SOPs) and makes estimates of the precision and accuracy that might be expected from the measurement systems. Prior to or during sampling the QA team carries out quality audits and helps resolve any problems. Quality assurance includes two types of activities: quality control (QC), and quality auditing. The QC activities are on-going activities of the measurement and data processing personnel. QC activities consist of written standard operating procedures to be followed during sample collection, sample analysis, and data processing. These procedures define schedules for periodic calibrations and performance tests (including blank and replicate analyses). They specify pre-defined tolerances that are not to be exceeded by performance tests and the actions to be taken when they are exceeded. The QC activities also include equipment maintenance, and acceptance testing, and operator training, supervision, and support. Quality auditing consists of two components: systems audits and performance audits. Systems audits include a review of the operational and quality control (QC) procedures to assess whether they are adequate to assure valid data that meet the specified level of accuracy and precision. After reviewing the procedures, the auditor examines phases of the measurement or data processing activity to determine whether the procedures are being followed and that the operating personnel are properly trained. The system audit is a cooperative assessment resulting in improved data. Performance audits establish whether the predetermined specifications for accuracy are being achieved in practice. Performance audit involves challenging the measurement/analysis system with a known standard sample that is traceable to a primary standard. Precision is quantified by periodically challenging a measurement device with known, identical input conditions. In evaluating precision and accuracy objectives, it is important to consider the methods used to determine the values. For example, a greater deviation may occur between replicates with real samples with complex matrices than with replicates of standards in simple matrices. Synthetic mixtures of hydrocarbons that are used in the Photochemical Assessment Monitoring Station Program for laboratory intercomparisons and through-the-probe audits are examples. An ambient sample yields a more complex chromatogram and greater potential for inconsistent identification. Analysis of a standard mixture of hydrazones does not address potential sampling artifacts that may be associated with carbonyl compound measurements using the DNPH derivitization method. Measurement intercomparisons are used to assess the representativeness, accuracy, and precision of measurements that preclude standard performance audits (e.g., PAN, NOy, ozone lidar, upper air meteorology). Chapter 4: QUALITY ASSURANCE 4-1
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CCOS Field Operations Plan (DRAFT)
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Appendix A CCOS Contact List (a) Re
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APPENDIX B Air Quality Monitoring S
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APPENDIX B (continued) Air Quality
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APPENDIX B (continued) Air Quality
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C. MEASUREMENT METHODS Field monito
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these sensors are sufficiently good
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the position of the balloon with re
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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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Central California Ozone Study (CCOS) - Desert Research Institute

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