Date

Activity

October/

November 1998

Wind tunnel tests at four uncontrolled test areas to quantify fine particle wind erodibility of exposed soils, including fine sandy loam, blowsand, and heavy clay loam. Manual dry sieving tests to bracket soil erodibility at multiple locations in the western Antelope Valley.

October 1999

Portable wind tunnel tests, supplementary surface stability tests (dropped ball penetration and balloon), moisture and silt tests, and hand sieving tests at 21 test plots to characterize control performance of chemical dust suppressants applied 4 months earlier to tilled sandy loam soils.

February 2001

Refined tests with portable wind tunnel, supplementary surface stability tests (dropped ball penetration, balloon, and confined air burst chamber), and manual dry sieving tests to characterize control performance of chemical dust suppressants applied 19 months earlier to tilled sandy loam soils.

October 2001

Surface stability tests (dropped ball penetration, balloon, and confined air burst chamber), and manual dry sieving tests to characterize control performance of chemical dust suppressants applied 28 months earlier to tilled sandy loam soils. Design and installation of sand flux sampling network at separate site.

November 2002

Refined tests with portable wind tunnel, supplementary surface stability tests (dropped ball penetration, balloon, and confined air burst chamber), and manual dry sieving tests to characterize control performance of chemical dust suppressants applied 41 months earlier to tilled sandy loam soils.

May 2003

Installation of a sand flux monitoring network.

November 2003

Final surface stability tests of chemical suppressant plots (dropped ball penetration, balloon, and confined air burst chamber), and manual dry sieving tests to characterize control performance of chemical dust suppressants) (design and installation of sand flux sampling network at separate site).