PHASE I WRAP-UP Day 1 – 10:00a PHASE I WRAP-UP -- Rangeland Burning on Private Lands – Technical Approach and EI Development

Rangeland Burning Overview Quantify rangeland burning on federal, state, and private land Develop “strawman” document that defines emission inventory procedure Essence: Gather region-wide data for top-down method, fill in specific data where available Proof of concept developed during Wyoming statewide agricultural emission inventory Need peer review of strawman

Rangeland EI Calculation

Rangeland Activity: Layers Top Down –Layer I: Region-wide Data Sources Rangeland utilization at county level from 2002 NASS Census Percent-burned factors and monthly allocation from ETT –Layer II: Sub-regional Data Sources Rangeland utilization at county level from individual states Bottom Up –Layer III: Summary Burn Activity Data Burned acres estimates at county level by month from individual states or districts –Layer IV: Burn Event-based Activity Databases Activity inventory of daily burn events from permit/tracking databases

Rangeland EI Steps Collect NASS annual rangeland utilization by county Apply most specific percent-burned factor available Allocate burn activity to month of year Allocate monthly subtotals to rangeland burning events Assign event to specific day of month Assign event to specific USGS LCC rangeland pixel in county

WRAP State Rangeland Acres%Burned Alaska6,8805 Arizona1,757,3145 California13,858,4805 Colorado16,772,1755 Hawaii852,6265 Idaho4,401,7165 Montana37,471,8355 Nevada4,022,0365 New Mexico32,836,8615 North Dakota10,984,4415 Oregon8,430,6875 South Dakota22,025,9715 Utah6,575,8975 Washington4,629,0345 Wyoming30,247,0245 Rangeland Activity Compilation Percent Burned

Rangeland Burning Allocation MonthHoliday JanuaryNew Year’s Day JulyFourth of July AugustHarvesting period NovemberThanksgiving DecemberChristmas Date Blackout Spatial Allocation Plume Class Size RangeProbability Packet (tons PM 2.5 ) 10 – Event Allocation