Propagation in the Evaporation Duct. Model Predictions and Comparisons to Data
Abstract
In 1972, a series of radio propagation measurements in the 1- to 40- GHz frequency range was performed in the eastern Mediterranean. A 35.2-km over- the-horizon propagation path was established between the islands of Naxos and Mykonos in the Aegean Sea. During the November measurement period, surface meteorological measurements were made and used to characterize evaporation ducting conditions on both islands, Ornos Beach on Mykonos and the Greek Weather Service on Naxos. These data have been quantitatively analyzed with the Engineer's Refractive Effects Prediction System (EREPS), the Radio Physical Optics (RPO) propagation model assuming horizontal homogeneity of the evaporation duct as characterized by the Mykonos meteorological data, and RPO utilizing the data at both Mykonos and Naxos to provide range-varying refractive structure. Comparisons of predicted propagation loss by the three approaches to the observed data show the influences of the EREPS single-mode assumption, surface-layer stability, and range-varying evaporation ducting
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1994
- Accession Number
- ADA283012
Entities
People
- R. A. Paulas
Organizations
- Naval Command, Control and Ocean Surveillance Center