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Volume 36 (1984)
- Issue 4 Pages 219-
- Issue 3 Pages 143-
- Issue 2 Pages 91-
- Issue 1 Pages 1-
Volume 36, Issue 3
Displaying 1-8 of 8 articles from this issue
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Hideo TAKAHASHI1984 Volume 36 Issue 3 Pages 143-150
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe purpose of this paper is to clarify the regionality of rainfall fluctuation in and around Japan (Fig. 1) in July. Using the data of monthly precipitation during 1951-1980, “cluster analysis” based on similarity of interannual fluctuations was applied (Fig. 2). The area was divided into five regions (A-E) which were distributed from north to south (Fig. 3). Fluctuations of areal mean rainfall of the regions were compared with each other from the the viewpoint of anomaly.
A change of interrelation on rainfall fluctuation among the regions was found at the latter half of 1960's (Figs. 4 and 5), which means a turning point as to geographical pattern in rainfall fluctuation.
Characteristics of year-to-year vasiation of anomaly distribution during 1951-1971, the former period, was northward or southward gradual movement of the areas with +sign and -sign anomaly (Fig. 7, Table 1).
During the latter period (1967-1980), the following two patterns of anomaly distribution appeared frequently (Table 2), being connected to the appearence of fronts at the 850mb level (Fig. 6).
(I) +area: Honshu, Shikoku and Kyushu.
-area: Over Hokkaidou and Ryukyu Islands.
(II) +area: Over the sea of Okhotsk and Ryukyu Islands.
-area: From Hokkaidou to Kyushu.
From these facts, it is found that the two periods are different each other on the variation mode of rainfall distribution in and around Japan in July.View full abstractDownload PDF (1069K) -
Takashi ISHIZAWA1984 Volume 36 Issue 3 Pages 151-160
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe purpose of this paper is to clarify the changes of spacial patterns of retail activities in Miyagi prefecture during the period of high economic growth in Japan. The results are summarized as follows.
The difference between the spacial distribution of retail activities and that of population is diminishing during the period, especially both in the case of food and beverage retail and in the case of other retail.
The shares of each administrative area to Miyagi prefecture of retail sales in 1958 and that in 1976 are compared. The shares of a few areas (including Sendai city, whose share of population to Miyagi prefecture has increased) have decreased, but the shares of almost all areas have increased.
Both the index of retail activity (I. A.) and the index of retail power (I. R.) given by the following formula, are used to consider the cause of the development of retail activities in each area.
I. A.=(Ri/Rm)/(Pi/Pm)
I. R.=Ri/Rm)-(Pi/Pm)
where
Ri=Retail sales of a given administrative area
Rm=Retail sales of Miyagi prefecture
Pi=Population of a given administrative area
Pm=Population of Miyagi prefecture
Both in Izumi and Tagajo cities located near Sendai city which is the biggest retail center in Miyagi prefecture, the development of retail activities is related to the growth of population. In other areas, the development of retail activities is related to the increase of retail establishments.View full abstractDownload PDF (1431K) -
Hiroshi TABUCHI, Hitoshi HASEGAWA, Yoshio HARA1984 Volume 36 Issue 3 Pages 161
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSWell developed icefoots which had ever occurred in the southernmost of Japan were formed on the Pacific Coast of Hokkaido (43°05′N, 145°07′E) during the winter of 1984. Storm icefoots, one of two types, were formed during the spring tide and had long spacing ice cusps. And platform icefoots, the other type, were formed on the seaward side during the average tide that followed the spring tide and had short spacing ice cusps.View full abstractDownload PDF (1921K) -
Masayuki TOYOSHIMA1984 Volume 36 Issue 3 Pages 162-163
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThere was discrepancy between previous studies of 14C age of the Koiwai Pumice, erupted from the Akita-Komagatake Volcano, northeastern Japan. It is age-dated as 13, 470±300yr B. P. in Endo (1977) and as 16, 300±500yr B. P. in Inoue (1978). Newly-dated 14C age of the peat bed overlain by the Koiwai Pumice Bed, 14, 930+330-320yr B. P., supports the Endo's (1977) report among the previously-suggested 14C ages of the pumice bed.View full abstractDownload PDF (248K) -
1984 Volume 36 Issue 3 Pages 164-168
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
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1984 Volume 36 Issue 3 Pages 168
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
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1984 Volume 36 Issue 3 Pages 169-209
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
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1984 Volume 36 Issue 3 Pages 210-211
Published: September 05, 1984
Released on J-STAGE: April 30, 2010
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