摘要
利用1964～2009年黄河水文站的冰情资料和梁山县气象局的气温资料,分析了黄河梁山段冬季凌汛发生的时空分布和变化规律,并对其成因进行了总结。结果表明:黄河梁山段1964～2009年凌汛期为11月下旬～翌年3月中旬。岸冰厚度呈阶段性变薄趋势,20世纪80年代中期以后变薄趋势更加明显。河道封冻期为12月～翌年2月。影响黄河凌汛强弱变化的因素主要有动力、气温和河道,其中气温变化为主要因素,因此在一定程度上可以根据气温变化来预测预报凌汛的强弱。
Using the ice data of the Yellow river hydrological station and air temperature data of Meteorological Bureau of Liangshan County in 1964 - 2009, the temporal and spatial distribution of ice flood in Liangshan parts of Yellow river in winter of 1964 -2009 were analyzed, and the causes were summarized. The results showed that the ice flood period was from late November to mid-March of next year. The ice thickness showed a periodic thinning trend, and the thinning trend was significant after the mid-1980 s. The river freezeup period was from December to February of next year. The factors affecting the ice flood variation of Yellow river were power, air temperature and river, and the change of air temperature was the main factor. Therefore, ice flood could be forecasted according to the changes of air temperature.
出处
《河北农业科学》
2012年第10期89-91,共3页
Journal of Hebei Agricultural Sciences
关键词
黄河
凌汛
气温
规律分析
Yellow river
Ice flood
Air temperature
Rules analysis
