Accession Number : AD0776871
Title : Ceiling-Visibility Climatological Study and Systems Enhancement Factors (Based on Hourly Observations).
Descriptive Note : Final rept.
Corporate Author : NATIONAL CLIMATIC CENTER ASHEVILLE N C
Report Date : JUN 1973
Pagination or Media Count : 132
Abstract : The climatological data presented herein are intended to assist the Federal Aviation Administration in making Instrument Landing Systems (ILS) investment decisions. A special study prepared by the Aviation Policy Division of the FAA describes the decision model used in the benefit/cost program to support requests for ILS facilities. The tables contained in this report are designed to present the seasonal and diurnal variability of the various ceiling-visibility conditions and system enhancement factors. Each table contains an explanation of the data presented as well as the number of hourly observations examined to develop the percentages.
Descriptors : *Ceiling, *Visibility, *Landing fields, Meteorological data, Tables(Data), Seasonal variations, Diurnal variations
Subject Categories : Terminal Flight Facilities
Distribution Statement : APPROVED FOR PUBLIC RELEASE