초하우계의 지속적 항우일에 관한 연구 : 한국과 일본의 구주를 중심으로

박병익 서울대학교 지리교육과 1990 地理敎育論集 Vol.23 No.1

The purpose of this paper is to examine the definition and occurrence characteristics of the persistent rainy day in the early summer rainy season over South Korea and Kyushu, Japan. The results are as follows. 1) The wet spell of length k day is defined as k days when rainfall continues more than 1mm per day. We can make a frequency table(observed frequency) of the wet spell of each length at a station for a given period(in this paper, June and July, 1941∼1980). The probability of rainy day be P, and the probability of no rain day is 1-P(let's it be Q). If there is no persistence in daily rainfall, the occurrence probability of the wet spell of length k is P^kQ². If the total days are N(=61×40=2, 440), then the expected frequency(caculated frequency) of the wet spell of length k is NP^kQ² with the above hypothesis. Therefore, we can say that the persistent rainy day in the sense of the probability that the wet spell is longer than the first wet spell of which the observed frequency is higher than the calculated frequency on no persistence hypothesis(Table 1). By carefull examination of synoptic conditions of daily rainfall at some stations, we can define the persistent rainy day as the wet spell is longer than 3 days(* in Table 1). Expected number of days of the persistent rainy day is 7∼12 days in one rainy season(Fig. 4). 2) Contributions of the persistent rainy days to total precipitation of June and July are more than 50% at most stations(Fig. 3). 3) There is a high frequency of the persistent rainy day in the first and second ten days of June over Kyushu, and also in the third ten days of June and the first ten days of July over Korea and Kyushu(Fig. 5). In the second ten days of July the occurrence frequency of the persistent rainy day over Korea is different from that over Kyushu. 4) Total occurrence frequency of the persistent rainy day at each year(Fig. 6) corresponds to the activity of the early summer rainy seasons of East Asia; in years with many persistent rainy days the early summer rainy seasons are to be active. 5) The total occurrence frequency of the persistent rainy day appears to be ralated to the strength and northward displacement of the North-west Pacific Anticyclone and chatacteristics of the atmospheric circulation in middle-high latitudes. In a year with many persistent rainy days in June, the North-west Pacific Anticyclone was very strong and shifted northwardly, and cold air advection over the North-east Part of China from higher latitudes was strengthened(Fig. 7). In July the developments of the Okhotsk Anticyclone and the North-west Pacific Anticyclone were followed by a high frequency of the persistent rainy day(Fig. 8).

닥 나무 葉 形態의 變用에 대하여

朴炳益,李廣遠 全北大學校 1976 論文集 Vol.18 No.-

This study was carried out to investigate the morphological variation of the leaf of Paper Mulbery(Broussonetia kazinoki Sieb.) as known it's general character. In order to investigate the facts, every leaf was selected for samples from 1 year old to 3 years old of the paper mulberies growing in Jeonbuk national university nursery and investigated to their leaf's forms which are projected on the section paper from 3 days after they come into leaf to 52 days. The results are summarized as follows; 1. The variation of the leaf area on the paper mulbery is 39.490% a day, which is very great from 3 days after they come into leaf to 10 days. And from 10 days to 17 days the variaties show 5.337% a day. From 17 days to 52 days considerably slowly. 2. The one-year-old leaf has three-separably forms and the standard deviation between the both leaf margin length in 2.45. 3. The two-year-old leaf shows the variation comparatively very large. The three days' leaf forms after they come into leaf shows three-separably forms nearly with the standard deviation σ=1.06. But they show the variaties very large with σ=12.11 from 3 days to 10 days after they come into leaf 52 days after the standard deviation shows 7.92 and then we couldn't see the leaf serration of it's margin in one side. And the leaf has two-separably forms. 4. The 3 years old leaf shows an ovoid figure of the geographic characteristic and the standard deviation is 1.12. 5. All the leaf forms of the paper mulberies have the characteristic in that the leaf margin length of twig side is longer than the other side alternately.

土砂의 含有量이 流速에 미치는 影響

朴炳益 全北大學校 1964 論文集 Vol.6 No.-

This experiments was attempted in order to show the effects of sand gravel contented in water flow on the mean velocity in torrent through the observation of velociiy of orifice discharge from the water tank contented clay. The data obtained are summarized as follows : 1. It is shown that the water flowing velocity was decreased by the increased the ratio of water to clay contented in water tank. 2. As has been shown in Fig. 1 and 2, the mean velocity of wather flowing was greatly decreased when the volume ratio of clay to water was diminished. 3. It semed that the rate of velocity decreased was increased when glasstube length was long. 4. When glass tube diameter was large, the rate of velocity decreased was diminished.

한국의 하계기온분포형의 종관기후학적 고찰

박병익 서울대학교 지리교육과 1982 지리학과 지리교육 Vol.12 No.1

The purpose of this paper is to examine the anomaly patterns of monthly mean temperature fields (May-September) over South Korea and their changes during the past 30 years (1946∼1975) using factor analysis and to clarify the synoptic implications of each factor. The results are as follows. More than 80 percent of the cumulative variance can be explained by the first two factors(Table 1). The spatial eigenvector patterns are shown in Figs. 1, 2, 3. From an examination of these patterns, it becomes clear that the first factor which is characterized by anomalies of same sign (positive) in all of the areas represents the real temperature anomaly patterns of either $quot;hot summer$quot; or $quot;cool summer$quot;, and that the second factor is characterized by anomalies of opposite signs in the west andin the east (for May, June, July, and August) ; in the north and in the south (for September), which represents the $quot;east cool-west hot$quot; pattern or the $quot;east hot-west cool$quot; pattern (for May, June, July, and August) ; the $quot;north hot-south cool$quot; pattern or the $quot;north cool-south hot$quot; pattern (for September) . In terms of the time series of factor scores in Fig. 4, the scores of the first factor have been frequently positive since the 1960's, especially in July, and different anomaly patterns appear since the 1960's. By the results of a power spectrum analysis which is applied to the factor scores (Fig. 5), the periods of 5, 7.5, and 15 years are recognized, but the statistical significance has to be examined for periods of greater length. Referring to the simultaneous correlation fields between the factor scores and the 500mb (millibar) heights over the Northern Hemisphere (Figs. 6,7,8,9,10,11,12), the first factor is related to the development and decay of the continental airmass of East Asia (for May) ; the dynamic relation of the Northern Pacific anticyclone and the Okhotsk airmass (for June and July) ; the development and decay of the Northern Pacific anticyclone and the subrole of the continental airmass of East Asia (for August and September). The second factor is affected by the Okhotsk airmass and the East China Sea airmass (for May, June, July, and August).

동아시아의 겨울철 일평균 기온 변화에 나타난 계절 내 변동 유형의 종관 특성

박병익 건국대학교 기후연구소 2017 기후연구 Vol.12 No.1

In this paper, for selected station of 8 clusters in East Asia (Park, 2017) more (less) warming periods than the wintertime mean warming of intra-seasonal fluctuation curves were taken and their means were computed. Long term trends and synoptic features of the mean temperature changes were examined. In most clusters, around the third of January there were less warming periods (LWP) than the mean wintertime warming. On the contrary, in February and the first and second of January there were more warming periods (MWP) than the winter mean or LWPs having a warming trend with statistical signicance. Time series of the daily Siberian High indices showed they had been weakening in February and being stagnant around late January. In most stations, the mean temperatures of MWP or LWP had large negative correlation coecients with the Siberian high intensity. is result explains the occurrences of MWPs in most clusters in February and LWPs in late January. In cluster B there were LWPs in early February due to the influence of the Aleutian Low which were strengthening in that periods. Cluster E showed different features without LWPs in late January. The cluster is considered to be affected by its plateau environment of West Yúnnán and the Tibet Plateau which prevent cold air of the lower atmosphere in Northern Asia flowing southward, and by the regional atmospheric circulation of 500hPa surface centered in this region.

한국의 동계 강수 분포에 관한 종관기후학적 연구 ( A Synoptic Climatological Study on the Distribution of Winter Precipitation in South Korea )

박병익,윤석은 대한지리학회 1997 대한지리학회지 Vol.32 No.1

砂防用 싸리種子의 水浸이 發芽에 미치는 影響

朴炳益 全北大學校 1964 論文集 Vol.6 No.-

The effects of soaking time in water on the germination of Lespedeza bicolar seeds used for erosion control were observed respectively; in incubator, at room, and on forestry nursery bed. The results are summarized as follows : 1. The seeds could germinate in any cass at light and dark condition, it is however certified that the Lespedeza bicolar seeds were lihgt demanding seed in its germination. 2. The begining of germination hardly recognized but the germination was hasted by long soaking time in water. 3. In the dark place, the percentage of germination was high acording to the long soaking time, but in the light place it shows the highest percentage in 3 days soaking. 4. The germination energy was the higher the longer soaking time.

소나무類의 組織 培養

朴炳益,高大植,洪性玉,崔萬峰 전북대학교 농업과학기술연구소 1974 農大論文集 Vol.5 No.-

The method and medium for obtaining callus and maintaining growth in tissue culture of koraiensis, P. rigida, P densiflora and P. thunbergii were adopted and the results are summarized as follows : 1. When cultivated in the Whites medium with each of seed extracted natural media, P. koraiensis only formed callus but P. rigida, P. densiflora and P,. thunbergii formed none. 2. When P. koraiensis was cultivated in a Whites medium modified by chestnut seed extract, firm brown callus was initiated at an explanat of it and has been successfully growing for 5 months.3. As for Korean pine seed extract, a higher concentration (75~90 mg/ℓ) inhibited the callus formation at an explant of P. koraiensis more than a lower concentration (15~30 mg/ℓ) but as for the chestnut extract, the opposited was the case. 4. The longer the size of explants on the culturing medium was, the less callus formation was made.

妊産婦産物의 流通過程에 관한 硏究 : I.價格動向을 中心으로 I.On the tendency of fruit price

朴炳益,姜聲然 전북대학교 농업과학기술연구소 1980 農大論文集 Vol.11 No.-

Results of analysis on main fruit resouces, demand and supply related with fruit resouces, marketing channel and price of fruits (forest by-products) are as follows : 1 Fruit resouces demand through protection and management to 9et more Products. It is hopeful to plant fruitful tree in economical forest stand, when considering economical view. 2. According to present increasing of fruit products, fruits exports must be expended to meet the increase of fruits. And so various supply methods, for examples, processing and caned goods, must be exploited. 3. For the protection of producers and consumers, the stabilization of fruit price is needed. And to decrease the rate of margin originated in the process of circulation is also necessary for the benefits of producers and consumers. Considering Present and future trends related with fruits, It is necessary to set up the stabilization fund for agricultural products and to develop a new way of stock fruits. For the stabilization of price and profits of producers, it must be put a gag in fore-selling(before harvest). 4. For a price stabilization and smooth supply of fruits, it would be need to regulate the big differences not only between the periods that the products are sufficiently and insufficiently supplied but also between the years that the price is high and low. This regulation would be achieved by encouraging the dispersed marketing of products which had been stored by producers and national or local governments.

玉峯 白光勳의 唐詩風 展開樣相 考

朴秉益 한국고시가문학회 2004 한국시가문화연구 Vol.0 No.14

Okbong Paek Kwang-hun(玉峯 白光勳), who belonged to Three-tang School as a literary man in the mid Chosun Dynasty, wrote the poetry of Tang poetic style. His Tang poetic style was quite different from that of China as follows. He commanded colloquial expressions in his poems, used place names of Chosun, and tended to be conventional in using those of China. He made use of various methods to describe the surroundings realistically. He freed from the formal rhythm of a rigid Chinese poetry style, Jintishi(近體詩), and used not only the rhythm of Yuefushi(樂府詩), a style of Chinese poetry which was mostly about human nature and customs, but also Chinese sounds in a Korean style. The theme of Okbong's poetry shows that he transcended the anxiety and solitude which stemmed from his life, accepting the reality he faced These characteristics led to a new poetical style of the day.