Measurement of airborne radioactivity and its meteorological application. Technical progress report, July 1, 1975--March 31, 1976. [Cosmogenic radionuclide tracers for meteorological studies]
The mechanics of air mass exchange between stratosphere and troposphere, and the controlling factors were studied. The cosmogenic radionuclides /sup 7/Be, /sup 32/P, /sup 33/P, and /sup 35/S serve as tracers. Their variation in time is observed from aerosol samples obtained on a daily basis above the boundary layer. Processes of transport are determined by isentropic trajectory analysis. An analysis of a long-term period of days for which continuously daily trajectory analyses are determined is presently underway. Moreover, in the present report a method is described permitting the forecasting of stratospheric intrusions by monitoring the relative humidity in the upper and middle troposphere. Forecasting accuracy is apparent from a test. The Lidar system has been completed so far as that remote aerosol sensing of aerosol layers in the lower stratosphere is now possible up to 30 km altitude. An example will demonstrate the measuring technique. Measurements of the ozone distribution in the boundary layer (3 measuring sites between 3000 and 700 m a.s.l.) and of the atmospheric total ozone content are presently started and will be integrated into the current program. Based on a comprehensive data material (1969-1975) we studied for the first time the multifarious interactions between solar-terrestrial events and the stratospheric-tropospheric exchange.
- Research Organization:
- Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V., Garmisch-Partenkirchen (Germany, F.R.). Inst. fuer Atmosphaerische Umweltforschung
- DOE Contract Number:
- E(11-1)-3425
- OSTI ID:
- 7265449
- Report Number(s):
- COO-3425-13; TRN: 08-019584
- Country of Publication:
- United States
- Language:
- English
Similar Records
Balance of the tropospheric ozone and its relation to stratospheric intrusions indicated by cosmogenic radionuclides. Technical progress report, 1 November 1977--30 June 1978. [/sup 7/Be, /sup 32/P, /sup 33/P]
Measurement of airborne radioactivity and its meteorological application. Part VII. Annual report, August 1, 1975--July 31, 1976
Related Subjects
EARTH ATMOSPHERE
MIXING
METEOROLOGY
RESEARCH PROGRAMS
STRATOSPHERE
TROPOSPHERE
AEROSOLS
ALTITUDE
BERYLLIUM 7
BOUNDARY CONDITIONS
DIFFUSION
NATURAL RADIOACTIVITY
PHOSPHORUS 33
SULFUR 33
TRACER TECHNIQUES
ALKALINE EARTH ISOTOPES
BERYLLIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COLLOIDS
DAYS LIVING RADIOISOTOPES
DISPERSIONS
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-EVEN NUCLEI
PHOSPHORUS ISOTOPES
RADIOACTIVITY
RADIOISOTOPES
SOLS
STABLE ISOTOPES
SULFUR ISOTOPES
500100* - Environment
Atmospheric- Basic Studies- (-1989)