The possibility of application of one-meter-depth temperature measurement for investigating groundwater vein streams in Jawa and Taiwan was examined by measuring one-meter-depth temperature and temperature of flowing groundwater in some landslide areas in both countries on April 1982.
As a result of this investigation, next matter are shown:
1) Normal one-meter-depth temperature (θ
u) and temperature of flowing groundwater (θ
w) are influenced by elevation and latitude in Japan, but both temperature in Jawa and Taiwan are influenced only by ele vation of each investiaated area. The relation between θ
u and θ
w was shown in Table-3.
2) Converted values into elevation of zero meter of θ
u are 29.8°C in Jawa and 25.3°C in Taiwan and the values of θ
w are 26.3°C in Jawa and 22.6°C in Taiwan. These values in both countries are very higher than those in Japan. θ
u and θ
w in both countries lower 0.5°C per 100 meters. This fall rate is a little lager than that of Japan on April (0.45°C/100m).
3) Difference between θ
u and θ
w is 2.7-4.2°C in Jawa and 0.9-3.5°C in Taiwan in this investgating time. Application of investigation by measuring of one-meter-depth temperature is possible in every landslide areas in J awa, but this application is not possible in a part in Taiwan.
4) The effectiveness of this investigating methode was shown at Cianjur Seratan in Jawa and Jiau Lin Pyng and Lung Tan in Taiwan (Figs. 8 and 9).
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