• 한국지구과학회:학술대회논문집
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• 2010.04a
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• pp.95-97
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• 2010

최근 겨울철 온난화 경향이 뚜렷해지면서 강수형태가 비로 내리는 경우가 잦아지고 있다. 또한 대륙고기압이 확장할 때는 기압골의 영향으로 강우에서 강설로 변하는 예가 종종 나타나고 있다. 강수유형의 판단은 겨울철 중요한 예보요소 중 하나로 본 연구는 중서부지방의 2010년 2월 4일부터 12일까지의 사례기간동안 일기도, AWS관측자료, 위성, KLAPS(층후, 빙결고도, 상당온위) 자료를 바탕으로 하여 강우에서 강설로 변하는 강수형태를 분석한 것이다.

• 한국지구과학회:학술대회논문집
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• 2001.09a
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• pp.56-56
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• 2001

• KOMUNHWA
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• no.56
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• pp.59-91
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• 2000

The iron culture have been studied mainly about the initial aspect and the growth of polity grossly on the level of the south Korea or the Yeungnam province. But the iron culture is necessary to study by diachronic and regional approach about the artifact

• Journal of the Korean earth science society
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• v.24 no.3
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• pp.181-189
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• 2003

This study analyzes the results of thunderstorm data observed in the mid-western part of Japan during the winter of 1996-1997. There were 35 instances of thunderstorms with 4,426 instances of lightning detected during the observation period. This study estimates the frequency of lightning occurrence through classification of detected lightning into two types, and analyzes the relationship between lightning types and synoptic pattern. According to the analyzed results, cloud-to-cloud discharge and positive polarity occupied 78% and 42.3% of total discharge, respectively. It is rare for lightning to occur in the winter season, usually occuring during the night (midnight to 5 a.m.). Lightning frequently occurs when there is a prevailing synoptic wind from the norhwest. According to the analyzed results of multiplicity and multi-point lightning, the mean values of multiplicity and multi-point lightning are 1.4 and 1.2, respectively.

• Journal of the Korean Geographical Society
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• v.39 no.2
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• pp.171-194
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• 2004

The antebellum American South has been characterized by the lingering backward images of plantation, slaves and cotton. The South specializing in the cotton cultivation is compared with the manufacturing East and the breadbasket Midwest. Douglass North who examined the interregional trade assumed that the South up until 1860 relied on the Midwest for the foodstuffs. Statistical and literary evidence, however, disputes the North's model, showing instead that the southern region attained self-sufficiency in foodstuffs at least in the late 1830s or early 1840s. The South's food self-sufficiency is attributable, to a greater extent, to the region-wide environmental movement of scientific agriculture launched to address the aggravating soil problems from cotton monoculture. Diversification and crop rotation lied in the center of the new regime. The new agricultural system combining com, cotton and cowpea ensured the procurement of hoecake, hog meat, and cotton. The most significant outcome of the good farming regime, however, was the enhanced environmental consciousness which came to prevail the best farmer's reckless rush for profit maximization.