CEILING/VISIBILITY RECURRENCE AND DIURNAL VARIATION,
Abstract
Estimators of conditional probabilities of recurrence of combined ceiling/visibility conditions associated with 8000 feet and 5 miles, respectively, are presented and tested against samples of data representative of semitropical climatological regimes. The estimators are shown to be reasonably efficient in the sense that about 95% of the achieved estimates fall within plus or minus 0.03 of observed values of the conditional probabilities. The results are contrasted with the higher degree of efficiency arising through application of similar methodology to cloud-cover amounts, where the comparable level was found to be 95% within plus or minus 0.02 for a large sample of northern hemispheric data. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 11, 1969
- Accession Number
- AD0695017
Entities
People
- Cyrus R. Mcallister
Organizations
- The Aerospace Corporation