Relationship Between Visibility and Snowfall Intensity

Download or read book Relationship Between Visibility and Snowfall Intensity written by Stephanie Bendickson and published by . This book was released on 2003 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a research program to analyze the relationship between snowfall intensity & visibility, with the objectives of harmonizing the Transport Canada and United States Federal Aviation Administration visibility tables and to find visibility ranges to correspond with the newly added "very light snow" category. A database of visibility & precipitation rate data was constructed with rate data measured using precipitation pans during endurance time testing. Visibility data were obtained from a Meteorological Service of Canada automated weather station adjacent to the test site. The resulting set of 700 hours of data was compared to previous observations of the relationship between visibility & snowfall intensity made by the National Center for Atmospheric Research. Examination of the data set also confirmed the relationship between visibility and temperature. Recommendations are made to further harmonize tables & measurements and to conduct further research.