24 research outputs found

    Improvement of the basic knowledge of the climatology of the vertical ozone layer by enhanced balloon sounding

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    Balloon sounding of the ozone in the Earth atmosphere was performed in order to determine the natural behavior of ozone and its recognizable deviations. The importance of ozone in the Earth atmosphere and the orographic situation of observatories and ozone sounding statistics since 1966 are explained. The physical processes governing the total amount of ozone, and the behavior of stratospheric ozone are described. Measurements in the upper stratosphere show a decrease of the ozone partial pressure above 26 km altitude since 1977. The behavior of tropospheric ozone is discussed. Data since 1977 show increasing ozone values in the troposphere, up to 50% to 70%. This increase is independent of the solar radiation intensity and the reinforced transport of stratospheric ozone into the troposphere. The increase in the troposphere cannot compensate the stratospheric decrease

    Trends in total column ozone measurements

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    It is important to ensure the best available data are used in any determination of possible trends in total ozone in order to have the most accurate estimates of any trends and the associated uncertainties. Accordingly, the existing total ozone records were examined in considerable detail. Once the best data set has been produced, the statistical analysis must examine the data for any effects that might indicate changes in the behavior of global total ozone. The changes at any individual measuring station could be local in nature, and herein, particular attention was paid to the seasonal and latitudinal variations of total ozone, because two dimensional photochemical models indicate that any changes in total ozone would be most pronounced at high latitudes during the winter months. The conclusions derived from this detailed examination of available total ozone can be split into two categories, one concerning the quality and the other the statistical analysis of the total ozone record

    A modular design ombrometer for the determination and digital recording of precipitation duration and amount

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    Translated from German (Offenbach a.M., Dtsch. Wetterd., 1973 v. 17(131) 19pp.)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.552(MO-Trans--1648)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

    Precipitation and measurements of precipitation

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    In Western Europe, precipitation is normal phenomenon; it is of importance to all aspects of society, particularly to agriculture, in cattle breeding and, of course, it is a subject of hydrological research. Precipitation is an essential part in the hydrological cycle. How disastrous local conditions may be when precipitation holds off was obvious recently in the Sahel territory, where for several years precipitation, which had previously been marginal, stayed well under normally expected quantities. This introductory paper aims at conclusions that may be drawn with respect to the distribution of rainfall, when judged from a scrutiny of the mechanism that is responsible for the very origin of precipitation

    Ozone sonde and Dobson spectrometer data obtained during the MAP/GLOBUS 1983 campaign over Western Europe

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    SIGLECopy held by FIZ Karlsruhe; available from UB/TIB Hannover / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman
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