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The Development of a Dust Emission Inventory for the New Mexico Border Border Region

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

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  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. Satellite based dust source areas

  7. Portable Wind Tunnel • Portable In-situ Wind Erosion Laboratory (PI-SWERL) • Measure PM10 dust emissions as a function of wind speed

  8. Bottom view Side view

  9. PI-SWERL sampling locations 29 sample locations in the US; Mexico scheduled this fall

  10. Mesilla Valley Sampling Locations

  11. Collecting samples 10 samples per location

  12. Determined soil texture & size distribution for all samples

  13. Determined soil moisture content for all samples

  14. Raw Wind Tunnel Data Shows response of soil emitting dust for three RPMs that correspond to wind speeds

  15. Wind Speed vs PM10 by Area

  16. 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

  17. 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

  18. Contact Dr. Dave DuBoisState ClimatologistNew Mexico State Univ.dwdubois@nmsu.eduhttp://nmborderair.nmsu.eduTwitter @nmclimate

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