PMID- 17063868
OWN - NLM
STAT- MEDLINE
DCOM- 20061204
LR  - 20191210
IS  - 1096-2247 (Print)
IS  - 1096-2247 (Linking)
VI  - 56
IP  - 10
DP  - 2006 Oct
TI  - Performance and diagnostic evaluation of ozone predictions by the Eta-Community 
      Multiscale Air Quality Forecast System during the 2002 New England Air Quality 
      Study.
PG  - 1459-71
AB  - A real-time air quality forecasting system (Eta-Community Multiscale Air Quality 
      [CMAQ] model suite) has been developed by linking the National Centers for 
      Environmental Estimation Eta model to the U.S. Environmental Protection Agency 
      (EPA) CMAQ model. This work presents results from the application of the Eta-CMAQ 
      modeling system for forecasting ozone (O3) over the Northeastern United States 
      during the 2002 New England Air Quality Study (NEAQS). Spatial and temporal 
      performance of the Eta-CMAQ model for O3 was evaluated by comparison with 
      observations from the EPA Air Quality System (AQS) network. This study also 
      examines the ability of the model to simulate the processes governing the 
      distributions of tropospheric O3 on the basis of the intensive datasets obtained 
      at the four Atmospheric Investigation, Regional Modeling, Analysis, and 
      Estimation (AIRMAP) and Harvard Forest (HF) surface sites. The episode analysis 
      reveals that the model captured the buildup of O3 concentrations over the 
      northeastern domain from August 11 and reproduced the spatial distributions of 
      observed O3 very well for the daytime (8:00 p.m.) of both August 8 and 12 with 
      most of normalized mean bias (NMB) within +/- 20%. The model reproduced 53.3% of 
      the observed hourly O3 within a factor of 1.5 with NMB of 29.7% and normalized 
      mean error of 46.9% at the 342 AQS sites. The comparison of modeled and observed 
      lidar O3 vertical profiles shows that whereas the model reproduced the observed 
      vertical structure, it tended to overestimate at higher altitude. The model 
      reproduced 64-77% of observed NO2 photolysis rate values within a factor of 1.5 
      at the AIRMAP sites. At the HF site, comparison of modeled and observed 
      O3/nitrogen oxide (NOx) ratios suggests that the site is mainly under strongly 
      NOx-sensitive conditions (>53%). It was found that the modeled lower limits of 
      the O3 production efficiency values (inferred from O3-CO correlation) are close 
      to the observations.
FAU - Yu, Shaocai
AU  - Yu S
AD  - Atmospheric Sciences Modeling Division, National Exposure Research Laboratory, 
      U.S. Environmental Protection Agency, Research Triangle Park, NC 27711, USA. 
      yu.shaocai@epa.gov
FAU - Mathur, Rohit
AU  - Mathur R
FAU - Kang, Daiwen
AU  - Kang D
FAU - Schere, Kenneth
AU  - Schere K
FAU - Eder, Brian
AU  - Eder B
FAU - Pleim, Jonathan
AU  - Pleim J
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - United States
TA  - J Air Waste Manag Assoc
JT  - Journal of the Air & Waste Management Association (1995)
JID - 9503111
RN  - 0 (Air Pollutants)
RN  - 0UZA3422Q4 (Sulfur Dioxide)
RN  - 66H7ZZK23N (Ozone)
RN  - 7U1EE4V452 (Carbon Monoxide)
SB  - IM
MH  - Air Pollutants/*analysis
MH  - Carbon Monoxide/analysis
MH  - Environmental Monitoring
MH  - Forecasting
MH  - *Models, Theoretical
MH  - New England
MH  - Ozone/*analysis
MH  - Sulfur Dioxide/analysis
EDAT- 2006/10/27 09:00
MHDA- 2006/12/09 09:00
CRDT- 2006/10/27 09:00
PHST- 2006/10/27 09:00 [pubmed]
PHST- 2006/12/09 09:00 [medline]
PHST- 2006/10/27 09:00 [entrez]
AID - 10.1080/10473289.2006.10464554 [doi]
PST - ppublish
SO  - J Air Waste Manag Assoc. 2006 Oct;56(10):1459-71. doi: 
      10.1080/10473289.2006.10464554.