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NASA-TN-D-548
Atmospheric Turbulence Measurements Obtained from Airplane Operations at Altitudes Between 20,000 and 75,000 Feet for Several Areas in the Northern Hemisphere
Year: 1960
Abstract: Measurements of clear-air turbulence by use of airplane-borne instrumentation have been obtained from NASA VGH recorders during research flights of Lockheed U-2 airplanes to altitudes of 75,000 feet over several areas of the Northern Hemisphere. An analysis of these data has indicated that for the higher altitudes (50,000 to 75,000 feet), turbulence is both less frequent and less severe than for the lower altitudes (20,000 to 50,000 feet). Turbulence appears to be present at the high altitudes (60,000 to 75,000 feet) less than 1 percent of the time. Moderately heavy turbulence appears to exist on occasion at altitudes of about 50,000 feet over Japan. As a consequence, the gust experience appears to be more severe for operations over Japan than for the other areas. Less than 50 percent of the turbulent areas exceeded 10 miles in length.
Subject: AIRBORNE EQUIPMENT
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:45:21Z | |
| date available | 2017-09-04T16:45:21Z | |
| date copyright | 01/01/1960 | |
| date issued | 1960 | |
| identifier other | VZHOEEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/108631 | |
| description abstract | Measurements of clear-air turbulence by use of airplane-borne instrumentation have been obtained from NASA VGH recorders during research flights of Lockheed U-2 airplanes to altitudes of 75,000 feet over several areas of the Northern Hemisphere. An analysis of these data has indicated that for the higher altitudes (50,000 to 75,000 feet), turbulence is both less frequent and less severe than for the lower altitudes (20,000 to 50,000 feet). Turbulence appears to be present at the high altitudes (60,000 to 75,000 feet) less than 1 percent of the time. Moderately heavy turbulence appears to exist on occasion at altitudes of about 50,000 feet over Japan. As a consequence, the gust experience appears to be more severe for operations over Japan than for the other areas. Less than 50 percent of the turbulent areas exceeded 10 miles in length. | |
| language | English | |
| title | NASA-TN-D-548 | num |
| title | Atmospheric Turbulence Measurements Obtained from Airplane Operations at Altitudes Between 20,000 and 75,000 Feet for Several Areas in the Northern Hemisphere | en |
| type | standard | |
| page | 26 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1960 | |
| contenttype | fulltext | |
| subject keywords | AIRBORNE EQUIPMENT | |
| subject keywords | ALTITUDE | |
| subject keywords | ATMOSPHERIC SOUNDING | |
| subject keywords | ATMOSPHERIC TURBULENCE | |
| subject keywords | CLEAR AIR TURBULENCE | |
| subject keywords | FLOW MEASUREMENT | |
| subject keywords | JAPAN | |
| subject keywords | METEOROLOGICAL PARAMETERS | |
| subject keywords | NORTHERN HEMISPHERE | |
| subject keywords | U-2 AIRCRAFT |