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当前位置: 首页 > 文章 > 乌梁素海湖泊冰消融过程的现场观测 海洋湖沼通报 2016 (4) 38-42
Position: Home > Articles > Field Observation of Ice Melting Process in Wuliangsuhai Lake Transactions of Oceanology and Limnology 2016 (4) 38-42

乌梁素海湖泊冰消融过程的现场观测

作  者：
张岩;李畅游;史小红;裴国霞;乔玲敏
单  位：
内蒙古农业大学水利与土木建筑工程学院;烟台大学土木工程学院
关键词：
湖泊;冰;消融过程;水文;观测
摘  要：
为了研究湖泊冰消融过程中的水文特征,以内蒙古乌梁素海湖泊为研究对象,对湖泊冰消融过程中气温、冰温、水温和冰厚度进行连续观测,以分析冰温和水温对气温变化的响应,并建立冰厚度与累积正积温间的关系。用冰钻钻取6根处于不同消融时期的冰芯样品,测定其表观密度,并从冰的晶体类型、表面特征、冰体透明度、气泡形态和气泡数量等方面分析冰柱的形态结构。结果表明:气温是影响冰温变化的主要因素,但冰温的变化过程滞后于气温的;冰下水的温度稳定在-0.20~-0.35℃,不受气温的影响。湖冰消融期冰的表观密度为611.5~920.3kg/m3,小于纯冰的密度,其随着冰层的消融而减小;且冰层上部密度小于中下部的,这主要冰融水沿孔隙下渗有关;随着湖冰的消融,冰的晶体类型、冰表面特征、冰体透明度、气泡形态和气泡数量等方面均有较大变化。
译  名：
Field Observation of Ice Melting Process in Wuliangsuhai Lake
作  者：
ZHANG Yan;LI Changyou;SHI Xiaohong;PEI Guoxia;QIAO Lingmin;Civil Engineering College,Yantai University;Water Conservancy and Civil Engineering College,Inner Mongolia Agricultural University;
关键词：
lake;;ice;;melting process;;temperature;;hydrologic;;observation
摘  要：
Wuliangsuhai Lake,located in Inner Mongolia,was selected for study object to study the hydrological characteristics during ice melting period..The atmosphere temperature,ice temperature,water temperature and ice thickness were observed continuously to analysis the response relationship among them and to build the relationship between ice thickness and positive accumulated temperature.6ice core samples during ice melting period were collected in order to measure apparent density and observe ice morphological structure from crystal type,characteristics of ice surface,transparency,and number of bubbles.The results showed that the ice temperature appeared to have the same changing trend as atmosphere temperature,but the changing of ice temperature is delay as against that of atmosphere temperature.While the atmosphere temperature showed no effect on under-ice water temperature,which was always stabilized on-0.20~-0.35℃.The apparent density of ice at different thickness is 611.5~920.3kg/m3 in ice melting process,which is less than the apparent density of pure ice.The apparent density of ice decreases as ice melts.The value of upper layer is much less than that of lower layer,which is related to migration of melting water among the ice layer.The major difference exists among crystal type,transparency,characteristics of ice surface and number of bubbles as ice melts.

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