Analysis on Similarity Characteristics of 4 Heavy Rainstorms of Regional Station near FAST

• 作者: Qixue PAN Yaling XIE Yidong MO Yang CHEN
• 来源期刊: 气象与环境研究:英文版
• 学科: 地球科学
• 关键词: FAST Regional automatic station Heavy rainstorm
• 年，卷（期）: 2021,（1）
• 页码范围: 1-5
• 页数: 5页
• 分类号: P45

摘要

Based on routine data of MICAPS system and data of regional automatic station,characteristics of similar environmental field for 4 heavy rainstorms of regional station in Luodian County near FAST in summer were analyzed.It was found that 4 heavy rainstorms of regional station had internal similarity:it maintained high-altitude situation of"high in west and low in east"from Lake Baikal to North China;the Western Pacific subtropical high was zonal;ridge line of subtropical high was near 15°N;θse at 850 hPa reached certain index value,showing that air mass had extremely strong warm and humid characteristics.Under common influence of high-altitude trough,low-value system at low layer and weak cold air,heavy rainstorm occurred.