| 王涛,余弘婧,郭新蕾,刘吉峰,陈玉壮,佘云童.黄河内蒙古河段典型凌情过程模拟[J].水利学报,2021,52(5):535-545 |
| 黄河内蒙古河段典型凌情过程模拟 |
| Numerical modeling of typical ice processes in the Inner Mongolia reach of the Yellow River |
| 投稿时间：2020-07-29 |
| DOI：10.13243/j.cnki.slxb.20200579 |
| 中文关键词: 黄河 凌情 模拟 冰厚 冰盖前沿 水温 流量 |
| 英文关键词: Yellow River ice condition simulation ice thickness ice front water temperature discharge |
| 基金项目:国家重点研发计划项目（2018YFC1508403）；国家自然科学基金项目（51979291，52009144）；中国水科院科研专项（HY0145B642017，HY0145B912017） |
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| 中文摘要: |
| 近十几年受人类活动和气候变化等影响，黄河内蒙古河段冰情出现新的特征，突发凌情频繁出现，原有的内蒙古河段冰模拟方法已不能满足当前凌情防治的需要，亟待建立能反映凌情物理特性变化规律的河段冰情动态发展数学模型。在实测资料基础上，研究了黄河内蒙古河段冰情时空变化规律，以及河道资料不完整、支流流量资料缺乏及冰桥位置的确定等问题。应用一维冰情数学模型模拟2012—2013年凌汛期黄河内蒙古河段冰情发展过程，并对水温、冰盖厚度、冰盖前沿发展和流量的模拟值和实测值进行了对比分析，模拟值和实测值吻合较好。本研究为黄河防凌提供科学依据和方法支撑，也为天然江河、人工渠道冰情全过程模拟提供了研究思路和技术手段。 |
| 英文摘要: |
| Due to the influence of human activities and climate change， features of ice conditions have changed in the Inner Mongolia reach of the Yellow River，and sudden ice disasters occurred frequently in the past ten years. The original ice simulation and prediction methods cannot meet the current requirement of ice flooding prevention in the Inner Mongolia reach. It is urgent to develop a mathematical model for simulating the dynamic processes of river ice conditions which reflects the physical characteristics of the ice condition and provides technical support for reservoir regulation and decision-making in winter. To fill such research gap，this study presents a one-dimensional ice condition mathematical model （RIVER1D） validated with field measurements. The model was used to simulate the ice development process in the Inner Mongolia reach of the Yellow River during 2012-2013 winter. The simulated water temperature， ice cover thickness，ice front process and flow were compared with the measured data. Although these measurements used for the ice condition simulation are not complete， the simulated and measured results are in good agreement. It clarifies the spatial and temporal changes of the ice conditions in the Inner Mongolia reach of the Yellow River，and solves the problems of the ice condition simulation with limited data，lack of tributary flow discharge，and provides methods to determine the position of the ice bridge. Such studies contribute to the understanding of winter ice processes in the Yellow River and other natural or artificial river channels. |
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