A1262659507ugUbk

1
(No Transcript)
2
CATT (Comparative Aerosol Trajectory Tool) CAPITA
Web-based Tool for Ensemble Trajectory Analysis,
MANE-VU MW RPO funding support, Currently
functional for evaluating 15 PMF UNMIX Sources
at 16 Sites
Plans to extend to all raw data for whole IMPROVE
network! Guess What PMF Source C3
at Acadia is (Hint Composition is 42 Na)?
3
Change Sources, Sites, Screens, Dates
Change Filters
Change Rendering
CATT
lt Download Data Open in ArcView gt for
additional data analysis plotting
4
(No Transcript)
5
Residual Oil Sources are found Primarily at
Northeastern sites and show Upwind Probability
Fields which are Local and Strongly
Convergent (Greater NYC area)
Wood Smoke Sources are Found in All Regions and
show Upwind Probability Fields which are Both
Local and more Distant and Strongly
Divergent (Likely Combinations of RWC
Forest Fires?)
6
Northern New England Wood Smoke Sources are
primarily Local New England and Eastern Canada
NE Wood Smoke influence is primarily Local in
Winter (wood stoves) and is more Regional (
Canadian) in Summer (wild fires)
7
Wood Smoke has different regional origins in NE,
MA, SW
Secondary SO4 has common regional origins in NE,
MA, SW
NE ACAD, PMRC, LYBR MA WASH, SHEN, JARI
SE GRSM, MACA
8
3 Toronto Coal Sources Primary Coal (no
secondaries), (NH4)2SO4 (and little else),
Acidic SO4 Secondary OC
While These 3 Virtual Source Components are
uncorrelated, they all come predominantly from
the same Upwind Region
9
High Incremental Probability Contours for
Secondary Sulfate Sources Toronto, Ont. (VT DEC
UNMIX sources, HY-SPLIT trajectories) Washington
DC (Battelle PMF source, extracted from CATT,
ArcView)
10
Upwind Probability Fields, P gt 0.001, 9 Sites,
extracted from CATT
11
SO2 Emissions 9-Site Mean Probability for
2ndary Sulfate Sources
12
Ammonium Nitrate at a wide range of Eastern
Sites appears to be associated with transport
from areas of high agricultural NH3 emissions
From Donna Kenskis 14-site traj. Analysis From
NADP Precip. Chem.
13
Toronto Mobile Source influence is predominantly
Local Northerly, Coal Sources are
predominantly US Midwest Southerly,
NH4NO3 is predominantly Westerly, Mixed Near/Far
Emissions
However, despite the apparent important influence
of agricultural NH3 emissions for highest
concentrations of NH4NO3, note that there is also
a moderately strong weekday increase in Toronto
NO3, suggesting importance of local urban NOx or
(I think) local NH3.
14
Highest Levels of Crustal or Dust Sources at
several Eastern US sites are consistent with
Sahara Dust influences, but 5-day
Trajectories (and limited grid coverage) are not
sufficient for identifying Dust origins and only
indicate latter part of transport route.
15
CATT (Comparative Aerosol Trajectory Tool)
Future Plans

1. Develop On-the Fly Trajectory Gridder to
   process raw ATAD ( other) Trajectories.
2. Expand Coverage of Aerosol Variables to include
   all raw Species Data at these sites.
3. Expand Coverage of Measurement Sites to include
   entire IMPROVE Network.
4. Link to Views