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首页> 外文期刊>Russian meteorology and hydrology >Assessment of Temporal and Spatial Inhomogeneity of Waters in the Nevskaya Cuba Bay and Eastern Gulf of Finland from Hydrochemical Indicators
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Assessment of Temporal and Spatial Inhomogeneity of Waters in the Nevskaya Cuba Bay and Eastern Gulf of Finland from Hydrochemical Indicators

机译：从水化学指标评估内夫斯卡亚古巴湾和芬兰东部海湾水域的时空不均匀性

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摘要

Hydrochemical inhomogeneity of waters in the Nevskaya Guba Bay and adjoining water areas of the Gulf of Finland is assessed with a principal component method. The application of the method made it possible to beforehand divide the period of study (1978-1996) into stages and then to single out hydrochemical zones that are formed under the impact of the main factors that take into account the interrelations of 17 water quality indicators. It is demonstrated that spatial water area inhomogeneity at different stages of construction of special structures to protect the city against floods, increased volumes of biologically treated waste waters, and changed sizes of dumping of polluted subsoil is related to various hypothetical factors reflecting different processes in the water body. Whereas before 1993 natural processes of organic matter production and destruction were leading in zone formation, at later stages it was the composition of treated waste waters and processes of the secondary water pollution with phosphate, lead, and cadmium.
机译：使用主成分法评估了内夫斯卡亚古巴湾和芬兰湾附近水域的水的水化学不均匀性。该方法的应用使得可以将研究时期（1978-1996年）预先划分为多个阶段，然后在考虑了17个水质指标相互影响的主要因素的影响下，挑选出形成的水化学区域。 。结果表明，在特殊结构的建造过程中，为了保护城市免受洪水侵袭，不同的经生物处理的废水量增加以及受污染的底土倾倒量的变化，空间水域的不均匀性与反映该过程中不同过程的各种假设因素有关。水体。在1993年之前，有机物生产和破坏的自然过程在区域形成中处于领先地位，而在后期，则是经过处理的废水的组成以及磷酸盐，铅和镉对水的二次污染过程。

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