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Evaluation of the Combined AERCOARE/AERMOD Modeling Approach for Offshore Sources
Citation:
Evaluation of the Combined AERCOARE/AERMOD Modeling Approach for Offshore Sources .
Impact/Purpose:
The AERCOARE-MOD approach would update the current regulatory approach for offshore projects, the Offshore Coastal Dispersion (OCD) model (Chang and Hahn, 1997; DiCristofaro and Hanna, 1989). OCD has not been updated for many years and does not reflect the latest scientific advancements found in the AERMOD modeling system. AERCOARE with the COARE air-sea flux method would replace AERMET by providing a meteorological input file that is technically more appropriate for marine applications.
Description:
ENVIRON conducted an evaluation of the combined AERCOARE/AERMOD (AERCOARE-MOD) modeling approach for offshore sources using tracer data from four field studies. AERCOARE processes overwater meteorological data for use by the AERMOD air quality dispersion model (EPA, 2004a). AERCOARE applies the Coupled Ocean Atmosphere Response Experiment (COARE) air-sea flux algorithm (Fairall, et. el., 2003) to estimate surface energy fluxes and assembles these estimates and overwater measurements for subsequent dispersion model simulations with AERMOD. AERCOARE would supplement AERMET (EPA, 2004b), the overland meteorological preprocessor for AERMOD, and allow AERMOD to be applied to offshore sources in a fashion similar to current new source review procedures over land. The current study assesses the AERCOARE-MOD modeling approach using measurements from four offshore field studies. The remainder of this report presents: the evaluation datasets, techniques used to prepare data for AERCOARE, statistical model performance procedures and the results of the evaluation. The development of AERCOARE was sponsored by the U.S. Environmental Protection Agency (EPA) under Contract EP-D-7-102, Work Assignment 4-14 and Work Assignment 5-17.
URLs/Downloads:
Peer Review Panel (PDF, NA pp, 40 KB, about PDF)AERCORE AERMOD Model Approach (PDF, NA pp, 27552 KB, about PDF)
METDATABYCASEANDSITE.PDF (PDF, NA pp, 149 KB, about PDF)
RESPONSESTOINFORMATIONREQUESTNO2.PDF (PDF, NA pp, 1034 KB, about PDF)
CLARIFICATION REQUESTS TO INFORMATION AND DATA REQUEST NUMBER 2 FROM HERMAN WONG TO SHELL.PDF (PDF, NA pp, 64 KB, about PDF)
INFO&DATAREQ@V1.PDF (PDF, NA pp, 44 KB, about PDF)
Response to Shell Comments (PDF, NA pp, 36 KB, about PDF)
Peer Review Panel (PDF, NA pp, 40 KB, about PDF)
COARE Bulk Flux Algorithm to Generate Hourly Meteorological Data for Use (PDF, NA pp, 5649 KB, about PDF)
Peer Review Sang-Mi-Lee (PDF, NA pp, 44 KB, about PDF)
Peer Review- USEPA Model Clearinghouse (PDF, NA pp, 370 KB, about PDF)
Notice for Comments USEPA USEPA TTN Support Center for regulatory Atmospheric Modeling (PDF, NA pp, 36 KB, about PDF)
EPA Public Notice Kulluk Conoco (PDF, NA pp, 106 KB, about PDF)
Shell Discoverer PSD Air Permit - Chuksi Sea (PDF, NA pp, 183 KB, about PDF)
EPA Shell Disco Beaufort web notice public comment (PDF, NA pp, 181 KB, about PDF)
Public Notice (PDF, NA pp, 21 KB, about PDF)
Document Presentation/Peer review Workshop (PDF, NA pp, 24 KB, about PDF)