Weller, Gunter E.2024-11-142024-11-141969-03http://hdl.handle.net/11122/15629UAG R-207; Foreword: Growing public interest in the practical problems posed by ice fog and air pollution in and around Fairbanks has drawn attention to the need for a ‘state of the art’ report on the subject. A number of members of our scientific staff have conducted investigations into various aspects of the ice fog phenomenon since 1961 and the activity has been increasing, both in scope and number of personnel involved. Besides the Geophysical Institute’s work, important contributions have also been made by several other institutions. Partly with the object of keeping all participants mutually informed about each other’s past, present and proposed activities, but also to summarize in a convenient form the present state of knowledge on the subject for the benefit of Federal, State and local authorities, the Institute decided to produce this report, edited by Dr. Gunter Weller. – K. B. Mather, Director.Foreword – Table of contents – 1. Introduction: the problem – 2. The meteorology of ice fog situations - a. Air temperature and inversions – b. Humidity – c. Heat balance – d. The synoptic situation – 3. The sources of ice fog – 4. The extent and diffusion rate of ice fog – 5. The sizes, shapes and concentrations of ice fog particles – 6. The physical properties of ice fog – a. Optical – b. Radiative – c. Electrical – 7. Other types of pollution associated with ice fog situations – a. Combustion products – b. Electron microscope examination of ice fog particles for pollutants – c. Proposed pollution research – 8. Methods of preventing or reducing ice fog – a. Reducing the area of open water surfaces – b. Reducing evaporation from open water surfaces – c. Removal of ice fog particles by electric methods – d. Removal of ice fog particles by mechanical methods – e. Other methods – 9. The future – 10. Bibliography.en-USIce fogReport