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首页> 外文会议>International Association of Hydraulic Engineering and Research(IAHR) Congress Theme B: Urban and Rural Water Systems for Sustrinable Development; 20030824-20030829; AUTH; GR >IMPACT OF SNOWMELT ON SPRING WATER TEMPERATURE FOR SOME BULGARIAN SPRINGS
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IMPACT OF SNOWMELT ON SPRING WATER TEMPERATURE FOR SOME BULGARIAN SPRINGS

机译：雪花对某些保加利亚春春水温的影响

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Spring water temperature plays role of natural tracer and may give valuable information about structure of karstic massif drained by the spring. The basic results from previous analysis of variability in water temperature for selected karstic springs from mountain areas were presented. All data originate from National Hydrogeological Network at the National Institute of Meteorology and Hydrology. These are time series of spring discharge and water temperature. The joint analysis of spring discharge and water temperature confirms the known peculiarities: the lower temperatures occur during the periods with high discharges. In mountain areas the basic recharge is due to snowmelt. The aim of the paper is to study impact of snowmelt on spring water temperature using simulation. Simple model of mixing waters demonstrates the process of cooling for groundwater in mountainous areas. The model was applied to spring Kjoshka from mountain Pirin. The parameters of the model were obtained. The results obtained are realistic. This refers to spring flow, as well as to water temperature for the period when the cooling effect of melting water dominates. The diagnostic equation was obtained and applied to the case of simulated aquifer. Its use for real data was discussed. The restrictions of the model are outlined and discussed. The model assumes that the basic process for cooling of water is adding of melting water to the system and instantaneous mixing. The application of the model was useful to analyse the cooling process due to snowmelt. The study of variations in spring water temperature provides valuable information about the functioning and the structure of the system.
机译：泉水的温度起着天然示踪剂的作用，可以提供有关泉水排出的岩溶质块体结构的有价值的信息。介绍了先前对山区某些岩溶泉水水温变化的分析的基本结果。所有数据均来自美国国家气象水文研究所的国家水文地质网络。这些是弹簧排量和水温的时间序列。弹簧排量和水温的联合分析证实了已知的特性：较低的温度发生在高排量的时期。在山区，基本补给是由于融雪。本文的目的是通过模拟研究融雪对泉水温度的影响。混合水的简单模型说明了山区冷却地下水的过程。该模型已应用于来自Pirin山的春季Kjoshka。获得了模型的参数。获得的结果是现实的。这指的是弹簧流量，以及融化水的冷却效果占主导地位期间的水温。获得了诊断方程，并将其应用于模拟含水层的情况。讨论了将其用于实际数据。概述并讨论了模型的局限性。该模型假定冷却水的基本过程是将融化的水添加到系统中并进行瞬时混合。该模型的应用对于分析融雪造成的冷却过程很有用。对泉水温度变化的研究提供了有关系统功能和结构的有价值的信息。

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