ASTER: The Atmosphere-Surface Turbulent Exchange Research Facility at NCAR

Authors


Abstract

The new Atmosphere-Surface Turbulent Exchange Research (ASTER) Facility at the National Center for Atmospheric Research (NCAR) in Boulder, Colo., will support observational research on the structure of the atmospheric surface layer and will provide state-of-the-art measurements of surface fluxes of trace chemical species, water vapor, sensible heat, and momentum.

At a time when human influences are perturbing both the atmosphere and the biosphere, it is increasingly important to improve our understanding of the interactions between the atmosphere and its underlying surface. There is a demonstrated need for a facility that can provide measurements of: the structure of the atmospheric surface layer, in support of studies of dry deposition, resuspension, natural emissions and chemical reactions within this layer.