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International Laser Ranging Service
10th General Assembly
Refraction Study Group
San Fernando, Spain
Wednesday, June 9, 2004
18:00-20:00
Summary
- Ciddor-Mendes refraction formula: Awaiting reviewed publication
- Assessment of group velocity concept (P.Ciddor)
- first order approximation in absorption, second order in dispersion
- worst case assupmtions for laser spectral width, slope of absorption
- currently under revision by Y.Galkin
- Preliminary result for wavelengths far
from absorption lines:
- Group velocity concept is applicable for fourier limited pulsewidths >10ps and propagation distances <40km
- Crosscheck of Ciddor-Mendes refraction formula with distinct approaches
- Assessment of horizontal refractivity gradient effects(R.Haas)
- Improved modeling capabilities at low elevation angles require assessment of laser wavelength parameter accuracy.
Responsible Government Official: Carey Noll
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