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Int. J. Environ. Res. Public Health 2014, 11(12), 12795-12816; doi:10.3390/ijerph111212795

Preliminary Evaluation of a Regional Atmospheric Chemical Data Assimilation System for Environmental Surveillance

1,* and 2
1
Air Resources Laboratory, Office of Oceanic and Atmospheric Research, National Oceanic and Atmospheric Administration, College Park, MD 20740, USA
2
Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
*
Author to whom correspondence should be addressed.
Received: 20 September 2014 / Revised: 2 December 2014 / Accepted: 3 December 2014 / Published: 11 December 2014
(This article belongs to the Special Issue Air Pollution Modeling)
View Full-Text   |   Download PDF [1385 KB, uploaded 11 December 2014]   |  

Abstract

We report the progress of an ongoing effort by the Air Resources Laboratory, NOAA to build a prototype regional Chemical Analysis System (ARLCAS). The ARLCAS focuses on providing long-term analysis of the three dimensional (3D) air-pollutant concentration fields over the continental U.S. It leverages expertise from the NASA Earth Science Division-sponsored Air Quality Applied Science Team (AQAST) for the state-of-science knowledge in atmospheric and data assimilation sciences. The ARLCAS complies with national operational center requirement protocols and aims to have the modeling system to be maintained by a national center. Meteorology and chemistry observations consist of land-, air- and space-based observed and quality-assured data. We develop modularized testing to investigate the efficacies of the various components of the ARLCAS. The sensitivity testing of data assimilation schemes showed that with the increment of additional observational data sets, the accuracy of the analysis chemical fields also increased incrementally in varying margins. The benefit is especially noted for additional data sets based on a different platform and/or a different retrieval algorithm. We also described a plan to apply the analysis chemical fields in environmental surveillance at the Centers for Disease Control and Prevention. View Full-Text
Keywords: chemical analysis; ozone; atmospheric aerosols; environmental surveillance; public health tracking chemical analysis; ozone; atmospheric aerosols; environmental surveillance; public health tracking
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, P.; Liu, Y. Preliminary Evaluation of a Regional Atmospheric Chemical Data Assimilation System for Environmental Surveillance. Int. J. Environ. Res. Public Health 2014, 11, 12795-12816.

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