Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Time behavior of CO2 and O3 in the lower troposphere based on recordings from neighboring mountain stations between 0.7 and 3.0 km ASL including the effects of meteorological parameters.

Die zeitlichen Aenderungen von CO2 und O3 in der unteren Troposphaere aufgrund von Registrierungen auf benachbarten Bergstationen zwischen 0.7 und 3.0 km Hoehe und der Einfluss meteorologischer Parameter
: Kanter, H.-J.; Reiter, R.

Archives for meteorology, geophysics, and bioclimatology. Series B 30 (1982), Nr.3, S.191-225 : Abb.,Tab.,Lit.
ISSN: 0066-6424
Fraunhofer IFU; 2002 in Helmholtz-Gesellschaft integriert

The continuous recordings of CO2 (1978-1980) and O3 (1977-1980) from neighboring mountain stations at 0.7, 1.8, and 3.0 km sea level are analyzed. CO2 recordings at 3.0 km have been started in late 1980. For O3, about 1000 profile measurements are available achieved by means of the Zugspitze cable car telemetry system between 1.0 and 3.0 km. In the evaluation we derive first the mean monthly diurnal variations of the mentioned gases at the respective measuring station. Furthermore, for clarifying the most varied daily fluctuations at the different levels, additional parameters are included such as sunshine duration, global and diffuse radiation, temperature, air mass character. For CO2, the activity of the biomass dominates in the valley (0.7 km) while the antrhopogenic contribution exists only in winter being very weak. At levels above 1.8 km in the almost entire absence of a daily variation, the global annual variation prevails. The O3 in the ground layer up to about 800 m above the valley floor appears to be produced photochemically by day through solar radiation whereas anthropogenic influences can be excluded. At levels above 2 km the stratospheric ozone source is more effective but does not seem to be decisive for the O3, level in the lower troposphere. In the O3 parameterization, too, are considered temperature, radiation, and the atmospheric layer structure. (IFU)