Tropospheric Range Error at the Zenith
Abstract
The atmospheric range error in an electromagnetic signal arriving vertically at the earth is measured by the height integral of the refractivity N through the atmosphere (N = one million (n-1) where n is the index of refraction). N in the nonionized atmosphere is the sum of dry and wet components, which are considered separately. Only the dry part is important at optical wavelengths and the present discussion deals principally with this dry part. Data from several thousand meteorological balloons were studied to develop a method for predicting the height integrals of N(dry).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1971
- Accession Number
- AD0749669
Entities
People
- Helen S. Hopfield
Organizations
- Johns Hopkins University