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Interpretation of radar returns from the mesosphere, part 2.3a
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Royrvik, O. |
| Copyright Year | 1984 |
| Description | The study of VHF radar signals from the mesosphere has shown that neutral atmosphere turbulence plays a central role in generating the refractive index irregularities that backscatter the radio waves. It follows that an increase in the turbulent energy dissipation rate will result in a decrease in signal correlation time and an increase in scattered signal power. Thus, in turbulence-generated radar echoes a negative correlation between echo power and signal correlation time (P/C) is expected. P/C also changes as a function of altitude, i.e., it is negative in the upper mesosphere but largely positive in the lower, with the latter thought to be a manifestation of partial reflection from stratified layers of refractive index gradient. Partial reflection would also explain the vertical aspect sensitivity of the scattered signal in the lower mesosphere. |
| File Size | 378669 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19850024172 |
| Archival Resource Key | ark:/13960/t1fj79c2w |
| Language | English |
| Publisher Date | 1984-12-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Meteorological Radar Atmospheric Turbulence Energy Dissipation Backscattering Refractivity Radar Scattering Radar Echoes Mesosphere Radio Meteorology Radar Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
