Conceptual
Model |
Site
Setting |
Aerosol
& Trends Analysis |
Backtrajectory
Analysis |
PMF
Analysis |
PMF Weighted
Backtrajectory Analysis |
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Okefenokee
Wilderness Area |
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| The role of transport in the causes of haze |
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| April is a transition month at Okefenokee
with most frequent flow from the north rather than northwest as in winter
months. April has relatively few worst-case days, but April poor visibility
days have a higher concentration of organic carbon (mainly from biomass
burning) than worst-case days in other months. In July, there is
little flow from the north. Flow is mainly from the southeast through near
west. In September flow is mainly from the northeast along the coast
due to clockwise rotation around high pressure areas typically to the north
of the site. December has peak transport frequency from the northwest
(post cold frontal airflow direction). |
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| For an in depth discussion on the role of meteorology
at Okefenokee see the Meteorological
Discussion section. HYSPLIT backtrajectories for Okefenokee can
be viewed in the
backtrajectory gallery page. |
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| Figure 5. Normalized residence time in
April
(left) and July (right) (based on data from 2000-2004) |
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| Figure 6. Normalized residence time in
September
(left) and December (right) (based on data from 2000-2004) |
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