Author:
Armstrong F. A. J.,Boalch G. T.
Abstract
SUMMARYMeasurements of the ultra-violet absorption spectra between 200 and 400 mix, have been made with a spectrophotometer. At short wave-lengths natural sea water has double the absorbancy of artificial sea water. The difference in samples from shallow depths is ascribed to organic material, of which part may be the Gelbstoff of Kalle. Regional variations have been found, coastal waters having higher U.V. absorptions. A small seasonal effect with an increase in absorbancy in summer in the English Channel has been seen. In deep Atlantic water increased absorption below 235 m/x may be due to its high nitrate concentration. At longer wave-lengths absorbancies were less than in surface waters. Measurements of U.V. absorption may supplement other physical methods of characterizing water masses.
Publisher
Cambridge University Press (CUP)
Reference19 articles.
1. Ultra-violet Radiation in the Sea
2. Composition of sea water;Lyman;J. mar. Res.,1940
3. Sur la penetration du rayonnement ultraviolet dans les eaux mediterranéenes;Lenoble;C.R. Acad. Set., Paris,1956
4. Durchsichtigkeitsmessungen im Meere im ultravioletten Spektralbereich
5. Meereskundliche chemische Untersuchungen mit Hilfe des Zeisschen Pulfrich Photometers;Kalle;Ann. Hydrogr., Berl.,1937
Cited by
56 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献