Loess landscapes could be major source of dust
Tuesday, September 3, 2013 - 09:50
in Earth & Climate
Dust, which affects weather and climate and can be hazardous to health, can be generated when sand or silt grains are either dislodged from the surface by other windblown grains (saltation) or lifted by wind directly (direct entrainment). Direct entrainment of silt has been thought to generate only minimal quantities of dust, and atmospheric models that include dust usually assume that dust generation occurs through saltation.