Fog and Boundary Layer Clouds: Introduction
This special issue of the Journal of Pure and Applied Geophysics contains 15 papers related to fog, visibility, and low clouds that focus on microphysical and conventional surface observations, satellite detection techniques, modeling aspects, and climatological and statistical methods for fog forecasting. The results presented in this special issue come from research efforts in North America and Europe, mainly from the Canadian Fog Remote Sensing And Modeling (FRAM) and European COST-722 fog/visibility related projects. COST (http://www. cost.esf.org/) is an intergovernmental European framework for international cooperation between nationally funded research activities. COST creates scientific networks and enables scientists to collaborate in a wide spectrum of activities in research and technology. COST activities are administered by the COST Office.