Victor H. Regener

Destruction of atmospheric ozone at the ocean surface

SummaryA procedure is suggested for the evaluation of the reaction constantK of the destruction of atmospheric ozone at the earths surface. The method is applicable when the ozone profile on one hand, and the wind speed at a fixed level on the other hand, are measured simultaneously; a logarithmic wind profile is assumed. An application of this method to some of the ozone profiles recently published by Tiefenau and Fabian leads toK ∼ 0.1 cm/sec at the surface of the ocean. This value, if confirmed by measurements at other locations, would require an upward revision of current estimates of the global flux of atmospheric ozone into the earth.ZusammenfassungEs wird eine Auswertungsmethode vorgeschlagen, welche es erlaubt, die OzonzerstörungskonstanteK an der Erdoberfläche auf Grund von gleichzeitigen Messungen des Ozonprofils einerseits und der Windgeschwindigkeit auf einer einzigen Höhe andererseits zu bestimmen; ein logarithmisches Windprofil ist vorausgesetzt. Eine Anwendung dieser Methode auf einige der kürzlich veröffentlichten Messungen des Ozonprofils von Tiefenau und Fabian führt aufK∼0.1 cm/sec an der Meeresoberfläche. Sollte sich dieser Wert durch weitere Messungen an anderen Orten bestätigen, so würde das eine Erhöhung der gegenwärtigen Abschätzungen des globalen Ozonflusses zur Erde notwendig machen.

Correlation of cosmic ray diurnal anisotropies with the interplanetary magnetic field over 21 years

Abstract Twenty-one years of data from the Embudo underground cosmic ray muon telescope and 18 years of data from the Socorro underground cosmic ray muon telescope are used to establish numerical correlations of the cosmic ray solar and sidereal diurnal variations with the interplanetary magnetic field (IMF) as measured by spacecraft. Using these correlations we examine the influence of the IMF on cosmic ray anisotropies both in the ecliptic plane and perpendicular to the ecliptic plane. The correlations are examined for their variability with the solar rotation period, looking in particular for recurrences within a period of 27 days (the solar rotation period). The long-term variability of these correlations is examined as a function of the level of solar activity and as a function of the magnetic polarity of the heliosphere.

Reversible Decade Counting Circuit

A ring‐of‐ten circuit is described, using ten pentodes, ten twin‐triodes, ten resistors, and no condensers, per ring. Two pairs of input terminals are provided for clockwise and counter‐clockwise feeding, respectively. This circuit can be used for electronic adding and subtracting, as well as for differential counting‐rate measurements on two sources. With the addition of five resistors to a ring, the number of counted events can be indicated on the screen of a small cathode‐ray tube. This circuit counts up to 5×105 evenly spaced events per second.

All‐Metal Fast Geiger Counters for Cosmic‐Ray Research

A detailed description is given of the preparation of all‐metal, argon‐alcohol filled, Geiger counter tubes for cosmic‐ray work. Two different possibilities are discussed for the construction of the feed‐through insulator.