Accession Number : AD0687264

Title :   OBSERVING THE DYNAMIC CHARACTERISTICS OF THE ATMOSPHERE WITH THE MESO CAVITY SPECULAR INTEGRATING REFRACTOMETER (MCSIR SYSTEM).

Descriptive Note : Technical rept.,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J ATMOSPHERIC SCIENCES LAB

Personal Author(s) : Carlson,Arthur V. ; Lamb,James J.

Report Date : MAR 1969

Pagination or Media Count : 39

Abstract : In an experiment conducted at Fort Hucahuca, Arizona, the low-level atmospheric turbulence and wind structure were sensed by observing variations in integrated radio refractivity of the atmosphere along a radio transmission path 1238 m in length and approximately 10 m above the ground. Phase lock measurement techniques using a 4 GHz transmitter permitted sensing mean refractivity changes as small as 0.1 N unit. Refractivity variation signatures were established for a variety of atmospheric stabilities and wind speeds ranging from absolute calm to thunderstorm conditions. The signatures are reliably repeatable, and very slight changes in atmospheric conditions produce distinctively different refractivity characteristics. Research and operational applications are suggested. (Author)

Descriptors :   (*ATMOSPHERIC MOTION, REFRACTIVE INDEX), (*REFRACTOMETERS, RADIO TRANSMISSION), REFRACTION, PHASE LOCKED COMMUNICATIONS, WIND, ARIZONA

Subject Categories : Meteorology
      Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE