WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Results from January/July CMAQ Source Apportionment Modeling Gail Tonnesen,

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WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Results from January/July CMAQ Source Apportionment Modeling Gail Tonnesen, Bo Wang, Zion Wang, Chao-Jung Chien, Mohammad Omary University of California, Riverside Zac Adelman, Andy Holland University of North Carolina Ralph Morris et al. ENVIRON Corporation Int., Novato, CA WRAP Attribution of Haze Meeting, Denver, CO July 22, 2004

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Contributions at Receptor Sites Bar plots show 20 largest contributors as determined using the tracers. All smaller contributors are lumped together and labeled “rest”. Results today are for sulfate and nitrate, and for January and July.

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Contributions at Receptor Sites Plots are prepared for average tracer contributions for each day at each site. Results summarized here as: –Average contribution for 1 month –Average contributions on the best and worst 20% modeled visibility days during the month. –Bext is used to select best & worst days.

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Naming Convention for Source Tags TypesSource CategoryNotes ICON Initial Concentration BCON Boundary Concentration EmissionsMV_*Mobile sources of any state BG_*Biogenic sources of any state RD_*Road dust of any state NR_*Non- Road dust of any state PN_*Point sources without SO2 of any state PS_*Point sources with SO2 of any state AR_*Area sources of any state WF_*WF Fire of any state AG_*AG Fire of any state RX_*RX Fire of any state MX_*Mexico Fire ET_*Total Emission of any state *_WRAPAny type of emission of WRAP domain OthersOTHERSAny sources other than all of the above

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Phoenix, IMPROVE & CMAQ Sulfate, July’02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Phoenix, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone, IMPROVE & CMAQ Sulfate, July’02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone Nat’l Park, TSSA Sulfate, CMAQ 20% Worst days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone Nat’l Park, TSSA Sulfate, CMAQ 20% Best days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone, IMPROVE & CMAQ Nitrate, July’02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone, CMAQ TSSA Nitrate July 2002 Average

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone Nat’l Park, TSSA Nitrate, CMAQ 20% Worst days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yellowstone Nat’l Park, TSSA Nitrate, CMAQ 20% Best days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, IMPROVE & CMAQ Bext, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, TSSA Sulfate, CMAQ 20% Worst days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, TSSA Sulfate, CMAQ 20% Best days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, TSSA Nitrate, CMAQ 20% Worst days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Bliss State Park, TSSA Nitrate, CMAQ 20% Best days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Rocky Mt. Nat’l Park, TSSA Sulfate, CMAQ 20% Worst days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Rocky Mt. Nat’l Park, TSSA Sulfate, CMAQ 20% Best days in July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 American Indian Class I Lands Spokane (SPOK1) Confederated Salish and Kootenai Tribes (FLAT1) Northern Cheyenne (NOCH1) Fort Peck (FOPE1) Yavapai-Apache (IKBA) Hualapai Tribe (contiguous to Grand Canyon National Park)

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Fort Peck, IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Fort Peck, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Fort Peck, IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Fort Peck, CMAQ TSSA Nitrate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, CMAQ TSSA Nitrate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Flathead, IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Flathead, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Flathead, IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Flathead, CMAQ TSSA Nitrate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone ), CMAQ TSSA Nitrate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Northern Cheyenne, IMPROVE & CMAQ Sulfate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Northern Cheyenne, CMAQ TSSA Sulfate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Northern Cheyenne, IMPROVE & CMAQ Nitrate, July‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Northern Cheyenne, CMAQ TSSA Nitrate July‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 American Indian Class I Lands (January)

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, IMPROVE & CMAQ Sulfate, Jan‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, CMAQ TSSA Sulfate Jan‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, IMPROVE & CMAQ Nitrate, Jan‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Spokane, CMAQ TSSA Nitrate Jan‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), IMPROVE & CMAQ Sulfate, Jan‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), CMAQ TSSA Sulfate Jan‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone), IMPROVE & CMAQ Nitrate, Jan‘02

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Yavapai-Apache (Ike’s Backbone ), CMAQ TSSA Nitrate Jan‘02 Avg

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Current Results CMAQ Tagged species source apportionment simulations are being completed for 2002: –Results are currently complete for January & July. –Model requires many tracers to track reactive species, especially NOy and NO3. Results in large data sets and slow run times. –Multiple simulations needed to apply tracers to all species of interest. –Although expensive, this is much less costly than running large numbers of sensitivity simulations.

WRAP Regional Modeling Center, Attribution of Haze Meeting, Denver CO 7/22/04 Summary of Results There are differences in the source areas and categories that contribute on to PM on the best versus the worst days. Challenge in evaluating many days & many sites. Boundary conditions (from GEOS-CHEM) is consistently a large contributor. Additional investigation of mass conservation error is needed.