Global Mineral Dust Transport Model Based on the GISS Three-Dimensional Atmospheric Tracer Transport Model

Spatial, temporal, and size distributions of mineral dust with sizes of less than 10 µm radius were calculated with a global dust model (Tegen and Fung 1994, see References below) based on the GISS three-dimensional atmospheric tracer transport model (Russell and Lerner 1981). The total dust load as well as the part that is deflated from disturbed soils was calculated (Tegen and Fung 1995).

The contribution from disturbed soils should be taken into account in climate change studies (Tegen et al. 1996). As dust particle size information is important for calculations of the dust radiative effect, we provide concentrations for 8 particle size classes with effective radii between 0.1 µm and 10 µm which were transported independently in the model. [Summary was Extracted from the NASA/GISS Home Page]