| 释义 |
Suess|suːs|
The name of Hans E. Suess (b. 1909), Austrian-born U.S. chemist, used attrib. to designate certain phenomena in radio-carbon dating, as Suess effect, the reduction in the proportion of carbon 14 in the atmosphere and plant life during the twentieth century as a result of the increased burning of fossil fuels, which lack that isotope; Suess wiggle, each of a series of relatively short-term irregularities, of disputed existence and origin, in the calibration curve obtained by dendrochronology for radio-carbon dating.
1957Proc. R. Soc. A. CCXLIII. 562 An accurate assessment of the Suess effect can yield valuable data on the carbon cycle. 1976Nature 8 July 128/1 There have probably also been periods of irregular fluctuation spanning a few hundred years (the so-called Suess ‘wiggles’). 1977Sci. Amer. May 86/3 There is uncertainty in interpreting the present era of solar activity from carbon-14 evidence because of the Suess effect. 1979Nature 5 July 48/1 (heading) Confirmation of the Suess wiggles: 3200–3700 bc. |