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2 record(s) found for principal investigator "Lehn, W.H." (multi-year projects are grouped):
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Licence #5020
Principal Investigator: Lehn, W.H.
Licensed Year(s): 1985
Summary: To further study meteorological optics by photographic recording of land forms and their refracted images over horizontal lines of sight; measurement of refraction and horizon shift by theodolite; local surveys of the photographed land forms and observation sites....
Licensed Year(s): 1985
Summary: To further study meteorological optics by photographic recording of land forms and their refracted images over horizontal lines of sight; measurement of refraction and horizon shift by theodolite; local surveys of the photographed land forms and observation sites....
Licence #4015
Principal Investigator: Lehn, W.H.
Licensed Year(s): 1984
Summary: To investigate optical refraction in the lower layers of the atmosphere (anomalous refraction, such as the superior mirage and optical ducting). Photographic recording of land forms and their refracted images: measurement of refraction and horizon shift; some measurement of atmospheric temperatures in the lowest layers (10-15 meters); local surveys of the photographed land forms....
Licensed Year(s): 1984
Summary: To investigate optical refraction in the lower layers of the atmosphere (anomalous refraction, such as the superior mirage and optical ducting). Photographic recording of land forms and their refracted images: measurement of refraction and horizon shift; some measurement of atmospheric temperatures in the lowest layers (10-15 meters); local surveys of the photographed land forms....
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