Spatial and temporal analysis of the summer temperature/precipitation in Tokyo metropolitan area using high-density observation and numerical simulation

利用200次高密度气象观测资料和JMA-AMeDAS风观测资料，对东京市区夏季气温异常的时空变化特征及其成因进行了分析。数据分析和数值模拟结果表明，以夏季海风和较强南风为特征的风系统对关东平原内陆高温区的影响较为明显。此外，WRF模拟还显示了城市诱导降雨的可能性。

An attempt was made to clarify temporal and spatial variations in summer temperature anomalies and their causing factors in Tokyo metropolis using our original 200 high density meteorological observations and JMA-AMeDAS wind observations. The results show the effect of wind system, which is characterized by summer sea-breeze and strong southerly wind, on the high temperature area over the inland Kanto plain as a result of data analysis and numerical simulation. Also WRF simulation suggest a possibility of urban induced rainfall.