2.1
Using Google Tools to Assimilate Atmospheric Chemistry and Meteorology Data
Perry J. Samson, Univ. of Michigan, Ann Arbor, MI
New
Google® tools for mapping including Google
Maps and Google Earth make
it possible to dynamically present a combination of measured air quality values
and their associated trajectories as well as miscellaneous additional information
such as precipitation and known emission locations and strengths. This paper
illustrates an open-source system created using PHP and MySQL that can be used
for research or education to explore the relationships between observed concentrations
and the meteorological conditions at and upwind of a measurement location.
Trajectories can be displayed in six-hour ensembles over the period of measurement
or as visualized probability of transport. Trajectories are viewed in ensemble
at http://www.qtba.org/ as
sample days are selected. Individual trajectories can be selected from the
ensemble and viewed as a fly-through in Google Earth using dynamically generated
.kmz files.
This tool has been designed as a resource for Quantitative Transport Bias Analysis (QTBA) receptor modeling. QTBA identifies the spatial bias in transport for measured species. Its use with multiple concurrent receptors offers a method for estimating source locations and relative source strength.
.Session 2, Effects of Meteorology on Atmospheric Chemistry and Air Quality
Wednesday, 17 January 2007, 8:30 AM-10:00 AM, 212A
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