A fundamental study on the change of climatic environment caused by a large-scale human activity

这是对大规模人类活动引起的气候环境变化的基础性研究.在这项研究中，方法和实地研究被认为是。在这里，大规模的人类活动被定义为由于冬季奥运会而引起的城市化程度。城市化程度的指标包括人口、DID人口、天空景观等。研究区域是长野县长野盆地，这是作为一个例子，已被选定为大规模的人类活动，由于主办国为1996年冬季奥运会的影响。此外，选择进行热岛现象专题研究的城市有长野、须坂、中野、筱之井、松代、小濑、丰野。采用HC-40型手持计算机移动观测系统进行热岛观测。令人惊讶的是，小镇Obuse的热岛强度达到4.2 C，几乎与欧洲和北美城市的观测值相似。此外，在一个小城市的中野相当大的热岛强度观察到的城市规模。这与土地覆被物质的变化和高层建筑的增加有关。在长野最大的城市在这一地区的热岛强度的频率分布也得到了比较，新州，新松地和杉平，这是位于山区以外的长野盆地。Landsat数据也被证明是有效的。

This is a fundamental study on the cange of climatic environment a largescale human activity. In this study both the methodology and the field study are considered. Here a large-scale human activity is defined the degree of urbanization caused due to the Winter Olimpic Game. The indices such as population, DID population, sky view and so on is taken up into consideration as the degree of urbanization. The study area is the Nagano basin, Nagano Prefecture which is chosen as a example which has been effected by a large scale human activity due to a host country for the 1996 Winter Olimpic Game. Also the cities selected for the special field study of heat island phenomena are Nagano, Susaka, Nakano, Shinonoi, Matsushiro, Obuse, Toyono. heat island is observed by the moving observation system using the HC-40 handheld computer. Surprisingly heat island intensity in the small town of Obuse amounted to 4.2 C which was almost similar to the value observed in European and North American cities. Also in a small city of Nakano considerably large heat island intensity was observed for city size. This is explained with the change of land cover materials and increasing high buildings. In the largest city of Nagano in this area frequency distribution of heat island intensity is also obtained compared with Shinshu-shinmati and Sugadaira which are located in the mountainous area outside the Nagano basin. Landsat data is also proved to be effective for this study.