河南省汛期降水的日变化特征
王新伟1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2，杜明哲1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2，肖瑶1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2
- 1.中国气象局（河南）农业气象保障与应用技术重点实验室,河南郑州450003；
2.河南省气象服务中心,河南郑州450003
Diurnal Variations of Precipitation in Flood Season of He’nan Province
WANG Xinwei1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2, DU Mingzhe1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2, XIAO Yao1,2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2[Author]) AND 1[Journal]) AND year[Order])" target="_blank">2
- 1. He’nan Key laboratory of Agrometeorological Support and Application Technique, CMA, Zhengzhou 450003, China；
2. He’nan Provincial Meteorological Service Center, Zhengzhou 450003, China
摘要：
利用1971—2010年汛期河南省111个观测站的逐小时降水资料，分析了河南省汛期降水的日变化特征。结果表明：河南省汛期降水量和降水频率日峰值均从南向北递减；黄河流域降水量日峰值明显小于淮河流域，南阳盆地的降水量日峰值大多出现在凌晨，豫西山地大多出现在傍晚，豫南大部分地区则出现在下午；豫南地区的降水频率日峰值最大，南阳盆地和豫西山地次之，全省大部分地区降水频率日峰值出现时间集中在上午；降水量、降水频率和降水强度的日变化呈双峰值特征，均在凌晨和傍晚出现峰值，凌晨的峰值最大；长持续性降水对河南省汛期降水量的贡献大于短时降水。