OPTICALLY PURE WATERS IN WAIKOROPUPU (PUPU) SPRINGS, NELSON, NEW-ZEALAND

被引：22

作者：

DAVIESCOLLEY, RJ

SMITH, DG

机构：

[1] National Institute of Water and Atmospheric Research Ltd, Hamilton

来源：

NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH | 1995年 / 29卷 / 02期

关键词：

OPTICAL WATER QUALITY; CLARITY; COLOR; WAIKOROPUPU SPRINGS;

D O I：

10.1080/00288330.1995.9516658

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

We have made in situ observations of the optical properties of Waikoropupu (''Pupu'') Springs, Nelson, New Zealand. Visual clarity was measured in the horizontal direction over a sight path ''folded'' using a plane mirror so as to accommodate the sighting range within the 35 m wide main springs basin. An average black-body visibility of 63 m was obtained, the highest yet reported for any fresh water, and close to the theoretical maximum for optically pure water. Measurements with a beam transmissometer were consistent with the visibility observations. As well as ranking among the very dearest waters in the world, these spring waters are virtually indistinguishable,from pure water as regards their spectral irradiance attenuation in the ultraviolet and beam attenuation in the green region of the spectrum, undetectably low content of yellow-coloured organic material, and remarkable blue-violet colour.

引用

页码：251 / 256

页数：6

共 24 条

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