都市気象学における先進技術のアジアメガシティーへの拡張適用

这项研究是基于一个名为“全球城市气候学”的新研究领域的发展。这个概念是基于这样一个假设，即城市地区不仅在局部尺度上而且在区域尺度上对大气环境有重大影响。它依赖于各种气象和地理参数的全球可用数据集。首先，利用Berkeley Earth的全球地表温度数据，获取了20世纪60年代至2000年代的栅格估算和台站观测的月地表气温数据。对1960年至1984年和1985年至2009年全球前30大城市的趋势进行了估计。比较了从台站估计的趋势和从更广泛的组成网格估计的趋势。研究发现，站内温度的上升速度远快于组成网格的温度，这对网格估算的地表温度的代表性提出了质疑。目前，我们正在将导出的趋势差异与能源消耗和其他气象参数（如风速和降水）的趋势进行比较。

The research is based on the development of a new field of study called, “Global Urban Climatology”. The concept is based on the hypothesis that urban areas have a significant impact to the atmospheric environment not only in the local scale but in the regional scale as well. It relies on globally available datasets of various meteorological and geographical parameters. Firstly, using global surface temperature data from Berkeley Earth, grid-estimated and station-observed monthly surface air temperature data from the 1960s to 2000s was acquired. Trends were estimated for top 30 megacities world-wide for the years 1960 to 1984 and 1985 to 2009. The trends estimated from the stations and the trends estimated from the wider comprising grid were compared. Temperature was found to increase much faster in the stations than in the comprising grids questioning the extent of representativeness of grid-estimated surface temperature. Currently, the derived trend differences are being compared with energy consumption and trends of other meteorological parameters such as wind speed and precipitation.