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大東與地圖의 圖法 및 系譜에 關한 歷史·地理적 硏究 : 經緯線式 實測地圖 製作史와의 比較 考察
朴寬燮 建國大學校附設 應用科學硏究所 1977 理學論集 Vol.3 No.-
The Korean map Taedong-yaw-chido (大東輿地圖)was,it is may be asserted, made based on the latitude and longitude observed several times during the Chosun dynasty together with actual surveys. It may be said as the greatest and most scientific map which marked a new epoch in the map-making history of Korea. It is, therefore, regrettable that no monograph has so far been published pertaining to the precious map, our national treasure. In this paper the history of map-making based on the latitude and longitude in the East and West has been examined with some comparison of their methods of map-making and their genealogy with those of Taedong-yaw-chido. With the purpose of discovering the methods and genealogy of the map, the following points have been studied: 1. Historical survey of map-makings based on actual measurements in Korea, 2. Introduction of surveying technique and actual measurements, 3. Introduction of surveying and uses of surveying appliances. It has been confirmed in many ways that the map was made by using the European method based on the latitude and longitude, supplemented by the Oriental method of using the sectioned scales of 1:160,000. Accuracy in terms of direction and distances, and the conception of altitude have been closely examined compared with those of modern maps, and the results show that this map has a comparative accuracy.
洪始煥,朴寬燮,任文淳,全順任 건국대학교 1978 學術誌 Vol.22 No.1
Our country has many limestone caves. There are about two hundred and thirty caves all over the country. Among them ninth percentages are limestone caves. We divide them into four classes as the limestone cove, lava cave erosion cave. We dlassify them with the component of formation for example, the limestone cave in the Karst region, the erosion cave in the seaside and the lava cave around the volcanic zone in Jeaioo Island. With geographical distribution, we could discover the limestone eave generally around the Gangwon Province, the Gyungsang Province the Chungcheung Province and the lava cave in Jea boo Province. The erosion caves are developed along the coast. With the geological period, we could discover the limestone cave mainly in the Cambro-Oldovisian Stage. We can see the anvient creature in the cave, not discovered at the surface, because the living things in the cave were late for the development. And the direction of the cave has connection with geological features. Mainly it agree with a fault plane. Generally Caves maintain the temperature from 14 degrees to 17 degrees. Thus, the fried temperature is a character of the cave. From old time, cave is made use for the place of the residence. Academic study for the cave began in earnest at the late 19th century. Comparaticely spealcing, we started studying only ten years ago. We used only cave for the place of refuse. And the cave is used for storehouse or the place in order to train the mind. Now we had to study to utilize the cave in our new period. For the temperature of the cave is fixed, we can use the cave for store. Now we had to study to utilize the cave in our new period. For the temperature of the cave is fixed, we can use the cave for storehouse of the crops or of the military goods. It is important for the cave to use for the military strategy. And it is possible to captivate the mushroom in the cave. Besides, we can use the pond of the cave for fish-breeding, as Japan is utilizing the cave for a fry-breeding. It is vary important to investigate the size or form of our many caves so as to serve the national safety.