In January 2018</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> a high record of monthly total precipitation in northern</span><...In January 2018</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> a high record of monthly total precipitation in northern</span><span style="font-family:Verdana;"> China drew our attention. The precipitation amount is 4 times more than that in normal winters over the past 30 years. Up to now, many research</span><span style="font-family:Verdana;">es</span><span style="font-family:""><span style="font-family:Verdana;"> over the world focus on the intensity of precipitations or the number of intense precipitations, however, no sufficient study is investigated in the continuous </span><span style="font-family:Verdana;">mod</span><span style="font-family:Verdana;">erate precipitations. The abnormal precipitation in January 2018 in northern China is a typical case of the continuous moderate precipitation. The research region is composed by the northern part of the farming-pastoral zone </span><span style="font-family:Verdana;">and the Hulunbuir Grassland. The main method in this study consists of</span><span style="font-family:Verdana;"> ana</span><span style="font-family:Verdana;">lyzing the abnormal precipitation month by identifying the precipitation</span><span style="font-family:Verdana;"> types and locations, and exploring the atmospheric circulations at the moment of typical </span><span style="font-family:Verdana;">precipitations. The research found that the continuity is the key point for</span><span style="font-family:Verdana;"> high precipitation amount in January 2018 in Northern China. Besides, this continuity is caused by frequent appearance of cyclones in the vicinity.展开更多
文摘In January 2018</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> a high record of monthly total precipitation in northern</span><span style="font-family:Verdana;"> China drew our attention. The precipitation amount is 4 times more than that in normal winters over the past 30 years. Up to now, many research</span><span style="font-family:Verdana;">es</span><span style="font-family:""><span style="font-family:Verdana;"> over the world focus on the intensity of precipitations or the number of intense precipitations, however, no sufficient study is investigated in the continuous </span><span style="font-family:Verdana;">mod</span><span style="font-family:Verdana;">erate precipitations. The abnormal precipitation in January 2018 in northern China is a typical case of the continuous moderate precipitation. The research region is composed by the northern part of the farming-pastoral zone </span><span style="font-family:Verdana;">and the Hulunbuir Grassland. The main method in this study consists of</span><span style="font-family:Verdana;"> ana</span><span style="font-family:Verdana;">lyzing the abnormal precipitation month by identifying the precipitation</span><span style="font-family:Verdana;"> types and locations, and exploring the atmospheric circulations at the moment of typical </span><span style="font-family:Verdana;">precipitations. The research found that the continuity is the key point for</span><span style="font-family:Verdana;"> high precipitation amount in January 2018 in Northern China. Besides, this continuity is caused by frequent appearance of cyclones in the vicinity.
