人民黄河Issue(2)：16-18,3.DOI:10.3969/j.issn.1000-1379.2016.02.005
2014-2015年度黄河宁蒙河段凌情及气象成因
Analysis of Ice Flood Characteristics and Meteorological Causes at Ningxia-Inner Mongolia Reach of Yellow River in Year 2014-2015
摘要
Abstract
In ice flood season of 2014~2015 year, the ice characteristics of Ningxia⁃Inner Mongolia reach of the Yellow River were as the following:late of the first ice date, large discharge of the river frozen up, thin of the ice sheet and the smallest ice flood peak during thawing period in history. The intensity of cold air activities at Inner Mongolia reach was weak in winter of 2014~2015 and the temperature was higher than normal. Especially in January 2015, the temperature of Inner Mongolia reach was abnormally high and monthly mean temperature of three stations (Dengkou, Baotou and Tuoxian) was 2.9~4.9℃ higher than the mean annual. Additionally, the 500 hPa and surface (sea level) charts in November 2014 and January to March 2015 showed mainly causes which led the high temperature in the winter of Ningxia⁃Inner Mongolia reach:a) polar vortex maintained at north of 60°N polar regions;b) prevailing zonal circulation in Asia mid latitude was not conducive to the north cold air south;c) mongolia high intensity was weak.关键词
气象成因/凌情特点/宁蒙河段/黄河/2014-2015年度Key words
meteorological causes/ice flood characteristics/Ningxia-Inner Mongolia Reach/Yellow River/year 2014-2015分类
天文与地球科学引用本文复制引用
霍世青,温丽叶,范旻昊,陈冬伶..2014-2015年度黄河宁蒙河段凌情及气象成因[J].人民黄河,2016,(2):16-18,3.基金项目
水利部公益性行业科研专项（201301062）。 （）
