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The Development of a Dust Emission Inventory for the New Mexico Border Border Region. Dave DuBois Dept. of Plant & Environmental Sciences NMSU. Presented at the Joint Advisory Committee meeting, Sept. 19, 2013. Motivation for the Inventory. Dust storms are a significant health hazard
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The Development of a Dust Emission Inventory for the New Mexico Border Border Region Dave DuBois Dept. of Plant & Environmental Sciences NMSU Presented at the Joint Advisory Committee meeting, Sept. 19, 2013
Motivation for the Inventory • Dust storms are a significant health hazard • Support local & NMED regulatory programs • Dust storms occur throughout the year in the region • Assessment of climate extremes • Build database for forecasting
Our Process • Build database of satellite imagery and ground data • Determine sources areas from satellite imagery • Estimate source areas from data • Measure wind erosion and characterize soils • Determine emissions for each area • Create geodatabase
Sources of Data • AVHRR, MODIS, GOES imagery • PM10 and PM2.5 data • Surface station data: ASOS/AWOS, NMED • Meteorological model output: RUC & NARR • Precipitation estimates from radar and model • Geospatial (GIS) maps of soils, terrain, vegetation
Hybrid model/data dust source locations Windblown Dust Index for the Spring season for wind speeds greater than 20 mph. Also plotted are the satellite derived potential source locations from this project (dots) Red colored areas indicate highest probability for dust sources Based on Hysplit and hourly data from PM10 in Las Cruces
Portable Wind Tunnel • Portable In-situ Wind Erosion Laboratory (PI-SWERL) • Measure PM10 dust emissions as a function of wind speed
Bottom view Side view
PI-SWERL sampling locations 29 sample locations in the US; Mexico scheduled this fall
Collecting samples 10 samples per location
Raw Wind Tunnel Data Shows response of soil emitting dust for three RPMs that correspond to wind speeds
Inventory Development • Answer the questions: • How much PM10 is initially emitted at specific wind speeds? • How much PM10 is available for emissions at prolonged exposure to specific wind speeds? • Use meteorological model & data to provide wind speeds over points of interest • Areas however do not always emit in response to wind
Collaborators Rebecca Armenta, Elizabeth Smith, Stan Engle, Yizhi Zhou Dept. Plant & Environmental Sciences, NMSU Max Bleiweiss, Merrill Bean, Miranda Flores, Soum Sanogo, Melanie Lytle Dept. Entomology Plant Pathology & Weed Science, NMSU Randy Carr, Janet Greenlee, Charles Jackson, Andrew Martinez Dept. of Geography, SPaRC lab NMSU Vic Etyemezian, George Nikolich Desert Research Institute Rosa Fitzgerald, Tom Gill UTEP Ilias Kavouras, Marie-Cecile Chalbot Univ. Arkansas Medical Sciences Michael Baca NM Env. Dept., Air Quality Bureau Juan Pedro Flores Margez Instituto de CienciasBiomedicas Univ. Autonoma de Cd. Juarez
Contact Dr. Dave DuBoisState ClimatologistNew Mexico State Univ.dwdubois@nmsu.eduhttp://nmborderair.nmsu.eduTwitter @nmclimate