1. February 23-24, 2005Salt Lake City, Utah1 Rangeland Burning (Non-Federal Lands) Methodology Phase 2 Fire Emission Inventory WRAP – FEJF

2. February 23-24, 2005Salt Lake City, Utah2 Rangeland Burning WRAP’s first attempt to quantify rangeland burning for regional modeling –Federal rangeland burning assumed to be in wildfire or prescribed fire activity data –No centralized reporting system for non-federal (state, tribal, and private) burning Objective for geographically complete WRAP-wide emission inventory First cut based on FEJF Emission Task Team expert judgment Status: Emissions calculated, event allocation and model ready file export still to do

3. February 23-24, 2005Salt Lake City, Utah3 Parameters First-cut non-federal rangeland acres burned by state provided by Pat Shaver Rangeland acres per county summarized from NRCS National Resource Inventory (1997) 1.75 ton/acre fuel loading selected (loading ranging from 1.5 – 2.0 ton/acre) WRAP Conservation Range Program (CRP) emission factor suite selected 17 lb/ton PM2.5, 18 lb/ton PM10, 12 lb/ton VOC

4. February 23-24, 2005Salt Lake City, Utah4 Top-Down Processing Overview Calculate emissions for each state Allocate state-wide activity and emissions to county level Allocate annual activity estimates to monthly basis Split monthly totals into realistically sized events Assign “daily-ized” events to date in month and rangeland location in county Export to model-ready format

5. February 23-24, 2005Salt Lake City, Utah5 Non-Federal Rangeland Activity

6. February 23-24, 2005Salt Lake City, Utah6 Non-Federal Rangeland Activity

7. February 23-24, 2005Salt Lake City, Utah7 Daily Event Allocation Spatial Allocation Plume Class Size RangeProbability Packet (tons PM 2.5 ) 1 0 – 1 0.9750.064 21 - 10 0.0242.202 310 - 100 0.000716.641 Event Allocation “Blackout days” not relevant to non-federal rangeland burning

8. February 23-24, 2005Salt Lake City, Utah8 Preliminary Summary

9. February 23-24, 2005Salt Lake City, Utah9 Natural / Anthropogenic Categorization Questions Categorize non-federal rangeland burning consistent with WRAP N/A Policy Select custom Source Classification Code (SCC) to identify non-federal rangeland burning as source category: 2810016000? –SCCs for Fire identified as either natural or anthropogenic –SCCs coordinated with regional modeling center to track nat/anthro categorization for fire

10. February 23-24, 2005Salt Lake City, Utah10 Method Limitations Activity based on ETT expert judgment –Could gather further data –Could revisit “percent burned” strategy Activity not specific to potential sub-state burning practice differences Single fuel loading value Simulated events calibrated to Ag statistics