著者

黒田 和男

出版者

東京大学生産技術研究所

雑誌

生産研究 (ISSN:0037105X)

巻号頁・発行日

vol.48, no.10, pp.491-501, 1996-10

著者

黒田 和男

出版者

一般社団法人 レーザー学会

雑誌

レーザー研究 (ISSN:03870200)

巻号頁・発行日

vol.39, no.6, pp.390-394, 2011-06-15 (Released:2015-09-03)

参考文献数

21

被引用文献数

4

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Speckle is observed when coherent light is scattered from a rough surface or is transmitted through a

著者

坂巻 幸雄 望月 常一 黒田 和男

出版者

日本地質学会

雑誌

日本地質学会学術大会講演要旨

巻号頁・発行日

vol.84, 1977-04-02

著者

日本地学史編纂委員会東京地学協会 今井 功 石山 洋 垣見 俊弘 黒田 和男 谷本 勉 八耳 俊文

出版者

公益社団法人 東京地学協会

雑誌

地學雜誌 (ISSN:0022135X)

巻号頁・発行日

vol.105, no.2, pp.215-237, 1996-04-25

参考文献数

173

被引用文献数

6 1

著者

黒田 和男

出版者

公益社団法人 日本地すべり学会

雑誌

地すべり (ISSN:02852926)

巻号頁・発行日

vol.9, no.3, pp.31-35, 1973-01-10 (Released:2010-06-28)

著者

菅野 敏夫 石井 武政 黒田 和男

出版者

公益社団法人 日本地下水学会

雑誌

日本地下水学会会誌 (ISSN:00290602)

巻号頁・発行日

vol.28, no.1, pp.25-32, 1986 (Released:2012-12-11)

参考文献数

11

被引用文献数

1 3

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Water level of Lake Kawaguchi in Yamanashi Prefecture had risen more than 3 m above the standard level after the heavy rainfalls in summer of 1983. On that opportunity the authors started to study the hydrogeological conditions around the lake with the use of long-term observation data of the lake water level, groundwater level, precipitation and others (Figs.4 and 5).The area is composed mainly of the Tertiary Misaka Group and the Quaternary volcanic rocks extruded from Fuji Volcano (Fig.1). The Misaka Group and the Kofuji Mud-flow Deposits, one of the effusive rocks of the volcano, constitute the hydrogeological impermeable bed rocks.Although Lake Kawaguchi has no natural mouth for surface discharge, the water is drained off through the man-made tunnels. On the other hand, it is likely that the water permeates through the volcanic rocks into the underground valley about 5 km south of the lake, judging from the contour line of the groundwater level (Fig.2). Figures 2 and 3 indicate that the hydrogeological watershed of the lake occupies only the northern part of the topographic watershed which extends southwards to the top of Mt. Fuji.The lake water is recharged from the surrounding mountains of the Misaka Group. The lake water remarkably rises after the 3 days rainfall reaches more than 200 mm (Figs.6 and 7). When the 3 days rainfall is less than 100 mm, it is invisible. Fluctuations of the lake water coincide with the rainfall pattern (Fig.4). The graph of the accumulation value of the rainfall variation is similar to the fluctuation of the lake water level.