caa a22 4500 475777905 CHVBK 20180406123636.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1023/A:1002786323224 doi (NATIONALLICENCE)springer-10.1023/A:1002786323224 A Wind-tunnel Study of Atmospheric Boundary-Layer Flow over Vegetated Surfaces to Suppress PM10 Emission on Owens (dry) Lake [Elektronische Daten] [Dae Kim, Greg Cho, Bruce White] Dust storms on Owens (dry) Lake located 200 milesnortheast of Los Angeles, California, U.S.A., havecaused serious PM10 emission problems. Alaboratory-based experimental study was conducted toinvestigate the efficiency of 'vegetation cover' onthe playa to suppress dust emission rates as part ofa mitigation plan. Erodible lakebed material and field vegetation (saltgrass) taken from Owens (dry) Lake were placed in awind tunnel to simulate near-surface wind flow in theatmospheric boundary layer. Vertical wind-speedprofiles and vertical PM10-concentration profileswere measured over six different levels of surfacevegetation cover. In order to understand the mechanismof aeolian particle transport and dust injection intothe atmosphere, the roughness parameter, z0, thefriction velocity, u*, and the surface dragcoefficient, CD, were carefully determined. An empirical equation was developed to predictPM10 emission rates as a function of wind speedand level of vegetation coverage for Owens (dry) Lake.Although the current results apply only to theeffectiveness of vegetation cover to suppressPM10 emissions at Owens playa, the procedure canbe employed for any arid area or region that mightutilize added vegetation as a mitigation measure. Kluwer Academic Publishers, 2000 Atmospheric boundary layer nationallicence Owens Lake nationallicence PM10 emission nationallicence Vegetation cover nationallicence Wind-tunnel testing nationallicence Kim Dae Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A. aut Cho Greg Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A. aut White Bruce Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A. aut Boundary-Layer Meteorology Kluwer Academic Publishers 97/2(2000-11-01), 309-329 0006-8314 97:2<309 2000 97 10546 https://doi.org/10.1023/A:1002786323224 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002786323224 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kim Dae Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A aut NATIONALLICENCE 700 1- Cho Greg Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A aut NATIONALLICENCE 700 1- White Bruce Department of Mechanical and Aeronautical Engineering, University of California at Davis, 95616, Davis, CA, U.S.A aut NATIONALLICENCE 773 0- Boundary-Layer Meteorology Kluwer Academic Publishers 97/2(2000-11-01), 309-329 0006-8314 97:2<309 2000 97 10546 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer