Development of digital teaching material for "Digital earth science" in connection with environmental monitor and providing in- service training to teachers.

针对新学科“数字地球科学”的开设，进行了教材开发研究。1. 以环境监测仪为研究对象，以大阪市区的特殊现象为教材，对“热岛”和“跟踪光和空气污染指数的星观测”进行了研究。(1)“热岛”观测由数据记录仪每隔10分钟连续观测一次温度和湿度，在大阪府四周每隔10公里设置14个观测点。由此可以看出，大阪中心地区的月平均最低气温与郊区的月平均最低气温在春秋两季呈上升趋势，两者之间存在着差异，白天受海岛控制的海风的影响。此外，实时气象资料也在网上公布（http://www.diges.net）。(2)为了使“观星”调查成为学校学生的一种方便的方法，设计了用数码相机等电子设备拍摄的天文照片，用计算机测量夜空亮度的方法。实际进行了天文观测，得到了城市部分、郊区部分和峡谷部分的差异。2. 这些观察结果被用于教师在职培训中，以“热岛现实”和“天体图像处理”为问题。3. 新的数码教材，例如利用互联网上的各种天气资料制作本地天气的时间序列变化，以及制作近年的自然灾害资料库等。

The research on the teaching material development was done for the establishment of a new subject "Digital earth science ". 1. To assume an environmental monitor to be a subject, and to make a peculiar phenomenon to the city region in Osaka etc. a teaching material, "Heat island" and "Star observation for the index of tracking light and air pollution" were investigated. (1)The observation of "Heat island" continuously observed every ten minutes of the temperature and humidity by the data logger by setting up the observation point in 14 points in Osaka Prefecture every all sides about 10km. It was clarified to the difference between the central area of Osaka of the monthly mean value of the minimum temperature and suburbs in seeing the tendency which grew in spring and autumn, and that there was an effect of the sea breeze of the beat island control daytime. Moreover, real-time meteorological data was published on the web (http://www.diges.net). (2) To make the investigation of "Star observation" a approach of the student at the school easily, the method of measuring brightness from the astronomical photograph which had been taken with electronic devices such as digital cameras to the night sky with the computer was designed. The astronomical observation was actually executed, and the difference among the city part, suburbs, and the ravine part was able to be obtained. 2. These observation results were used in in-service training of teachers which assumed "Realities of the heat island" and "Heavenly body image processing" to be a problem. 3. New digital teaching materials such as the time series changes concerning local weather in which various weather information in the Internet was used and making of a natural disaster in recent years a data base were developed.