• Title/Summary/Keyword: 미기후 요소

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Analysis of the Characteristics of Biophilic Design in 『Soswaewon 48 Yeong』 (『소쇄원 48영』에 나타난 바이오필릭 디자인 특성분석)

  • Lee, Hyung-Sook;Choi, Mi-Seon
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.40 no.4
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    • pp.58-66
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    • 2022
  • Biophilic design is an approach that attempts to connect people with nature to promote health, recovery and restoration processes. The purpose of this study was to systematically analyze restorative factors and characteristics of Soswaewon by applying a biophilic design analysis framework. To this end, a biophilic design classification system was established and content analysis and frequency analysis were conducted for 『Soswaewon 48 Young』. the ratio of plant words including bamboo, pine, and plum was the highest, and words related to dynamic water flow or interaction with water as well as various water types such as streams, waterfalls, and ponds were also high. appeared in rank. In addition, multisensory factors, seasonal changes, microclimatic factors, emotional elements that allow people to indirectly experience nature were expressed in various ways. The space layout and circulation provide opportunities to appreciate and experience the rich sensory resources of Soswaewon. In conclusion, this study confirmed the healing and restorative value of Soswaewon from the perspective of biophilic design, and it needs further research on the restorative factors of traditional spaces.

Development of Forest Garden Model Based on Structural Characteristics of Forest Community in Korea (우리나라 산림군집의 경관구조 특성기반 숲정원 모델의 개발)

  • Seung-Hoon Chun;Yoon-Jung Cha;Sang-Gil Park;Jun-Gyu Bae;Kyung-Mee Lee
    • Ecology and Resilient Infrastructure
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    • v.10 no.4
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    • pp.237-249
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    • 2023
  • This study was carried to establish a new landscape-oriented gardening model based on climate, vegetation, and forest landscape characteristics. In addition, innovative forest garden models were suggested through an integrated approach to the ecological characteristics of forest vegetation communities and existing garden planting types. For the study, the key landscape elements that make up the main forest vegetation community were identified. And the vertical layers and horizontal distribution patterns of the community structure were typified by diagnostic species and their growth forms & habits such as dominant species, character species, and differential species, and degree of dominance-sociability. Based on this, a standardized vegetation structure and formation was developed by stratifying the landscape into main features, minor features, and detailed features according to visual dominant elements. Also, the applicability of the forest garden model was examined by applying the concept of borrowing landscape to representative deciduous broadleaf forests in the temperate northern region of Korea. Additionally, an integrated forest garden models based on the conceptual definition and typology of forest gardens, and a strategic approach to forest vegetation were proposed

The Distribution of Natural Disaster in Mountainous Region of Gangwon-do (강원도 산지지역의 자연재해 분포 특성)

  • Lee, Seung-Ho;Lee, Kyoung-Mi
    • Journal of the Korean Geographical Society
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    • v.43 no.6
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    • pp.843-857
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    • 2008
  • This study analyzed distribution of natural disaster and trend of related climatic elements in mountainous region of Gangwon-do. In mountainous region of Gangwon-do, there have been 27 natural disasters of which heavy rainfall have the leading cause for the last 5 years(16 times in 2003-2007). It has been 9 natural disasters in Jinbu-myeon Pyeongchang-gun, the most frequent area. The mountainous region has been larger natural damage than its surrounding regions and there has been more damage at higher altitudes. While the heavy rainfall have caused damage over the northwest of mountains, most typhoons have damaged southern part of mountains. Most mountainous region suffers from strong wind but damage by snow is small. In mountainous region of Gangwon-do, annual precipitation, intensity of precipitation and heavy rainfall days have been increasing since 2000 and this tendency is significant in its intensity. However, annual snowfall, snowfall days and heavy snowfall days have been clearly decreasing since 2000. In case heavy rainfall accompanies strong wind, the damages are larger in mountainous region of Gangwon-do. Therefore it is important to be prepared for heavy rainfall and strong wind.

Temporal and Spatial Wind Information Production and Correction Algorithm Development by Land Cover Type over the Republic of Korea (한반도 시공간적 바람정보 생산과 토지피복별 보정 알고리즘 개발)

  • Kim, Do Yong;Han, Kyung Soo
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.3
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    • pp.19-27
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    • 2012
  • Wind is an important variable for various scientific communities such as meteorology, climatology, and renewable energy. In this study, numerical simulations using WRF mesoscale model were performed to produce temporal and spatial wind information over the Republic of Korea during 2006. Although the spatial features and monthly variations of the near-surface wind speed were well simulated in the model, the simulated results overestimated the observed values as a whole. To correct these simulated wind speeds, a regression-based statistical algorithm with different constants and coefficients by land cover type was developed using the satellite-derived LST and NDWI. The corrected wind speeds for the algorithm validation showed strong correlation and close agreement with the observed values for each land cover type, with nearly zero mean bias and less than 0.4 m/s RMSE. Therefore, the proposed algorithm using remotely sensed surface observations may be useful for correcting simulated near-surface wind speeds and producing more accurate wind information over the Republic of Korea.

Sensitivity Analysis of Satellite BUV Ozone Profile Retrievals on Meteorological Parameter Errors (기상 입력장 오차에 대한 자외선 오존 프로파일 산출 알고리즘 민감도 분석)

  • Shin, Daegeun;Bak, Juseon;Kim, Jae Hwan
    • Korean Journal of Remote Sensing
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    • v.34 no.3
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    • pp.481-494
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    • 2018
  • The accurate radiative transfer model simulation is essential for an accurate ozone profile retrieval using optimal estimation from backscattered ultraviolet (BUV) measurement. The input parameters of the radiative transfer model are the main factors that determine the model accuracy. In particular, meteorological parameters such as temperature and surface pressure have a direct effect on simulating radiation spectrum as a component for calculating ozone absorption cross section and Rayleigh scattering. Hence, a sensitivity of UV ozone profile retrievals to these parameters has been investigated using radiative transfer model. The surface pressure shows an average error within 100 hPa in the daily / monthly climatological data based on the numerical weather prediction model, and the calculated ozone retrieval error is less than 0.2 DU for each layer. On the other hand, the temperature shows an error of 1-7K depending on the observation station and altitude for the same daily / monthly climatological data, and the calculated ozone retrieval error is about 4 DU for each layer. These results can help to understand the obtained vertical ozone information from satellite. In addition, they are expected to be used effectively in selecting the meteorological input data and establishing the system design direction in the process of applying the algorithm to satellite operation.

Korean Companies' Understanding of Carbon Pricing and Its Influence on Policy Acceptance and Practices (한국 기업의 탄소가격 정책에 대한 이해가 정책 수락 및 대응에 미치는 영향)

  • Suk, Sunhee
    • Environmental and Resource Economics Review
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    • v.26 no.4
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    • pp.577-612
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    • 2017
  • In response to climate change, Korea is attempting to shift the paradigm of energy and climate change policies by introducing carbon pricing based on market mechanisms. While policy adoption is proceeding at a rapid pace, the introduction of carbon pricing has been faced with great opposition from industry. This study measures to what extent Korean companies understand and accept carbon pricing, using data from a questionnaire survey covering energy consuming companies in 2012, when discussions between the government and such companies about the introduction of a domestic emission trading system were active. It further identifies how preparations and practices for carbon and energy management of companies correlate with their policy understanding and acceptance. The analysis results show that the surveyed companies indicate moderate understanding of, as well as resistance to carbon pricing policies, while appreciating the economic incentives and accepting the mandatory regulations in this phase. Companies' understanding is more related to characteristics, i.e., sector, size, etc. than external pressures. This study found that the extent to which companies understand policy is the essential factor in their policy acceptance and related practices. In particular, understanding of carbon policy significantly influences their managerial practices and voluntary activities for carbon and energy practices. This study substantiates the correlation between the level of policy understanding of a company and its carbon and energy practices - something that all countries seeking to introduce carbon pricing in response to climate change should consider prior to policy actually being implemented; in other words, enhancing the understanding of major policy subjects of the new instrument is a key policy strategy that should be elaborated as it will lead to better performance of companies and smoother policy implementation.

Study on Characteristics for Local Deposit of Sediment by Surveying River Bed's Layer History in High Berm of River Channel (하도 층구조 이력조사를 통한 하도내 국지퇴적 특성 분석)

  • Ryu, Young-Hoon;Lee, Sam-Hee;Ahn, Won-Sik
    • Journal of Korea Water Resources Association
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    • v.43 no.10
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    • pp.883-891
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    • 2010
  • More recently, there have been significant changes in the forms of channels due to runoff characteristics driven by climate changes and other alterations in basin/channel environments. Particularly, increasing local deposition in major channels is being observed nationwide. Of such phenomena, it is noteworthy that flood-plains show unidirectional growth and lowering of channels within compound channels in the form of a high-flow plain. These changes are supposed to affect management of the river ecology as well as flood control. In this study, the research on channels in Korea confirmed that the phenomenon of local deposition in those channels is actually taking place, rendering a problem to be urgently addressed. Previous studies on bed changes have been focused on low channels based on bed materials distributed over the channels. However, this research has proved that surface-layer deposition of a high-flow plain is closely related with changes in the conditions of ground surfaces and, ultimately, affects the bed of the entire channel as well. According to the intensive research on the condition of the high-flow plain of the mouth of the Han River, the silt deposited in the high-flow plain was the main cause of settlement/growth of vegetation. And this leads to landforming along with woods-forming, disturbing flood control as well as the normal river ecology.

Rural Amenity Contents in the Textbooks of Agricultural High School (농업계고등학교 교과서를 통해 살펴본 농촌어메니티 교과내용)

  • Kim, Eun-Ja;Ryu, Cheong-San;Kang, Bang-Hun;Yoon, Soon-Duck;Kim, Sang-Bum;Hwang, Jeong-Im;Rhee, Sang-Young
    • Proceedings of the Korean Society of Community Living Science Conference
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    • 2009.09a
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    • pp.93-93
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    • 2009
  • 본 연구는 농업 농촌의 미래세대 주역으로 활동하게 될 농업계 고등학교 학생들에게 교과서를 통한 학습기회 제공이 무엇보다 중요함에 따라, 그들이 배우고 있는 농업계고등학교 교과서를 대상으로 농촌어메니티 교과내용을 분석함으로써 농촌어메니티 및 녹색가치 구현에 대한 인식 중대를 도모하고 올바른 농업 농촌의 가치관을 형성시키는데 기여하고자 한다. 분석 교과서는 원예, 축산, 농기계, 식품가공 등 총 39종의 농업계 교과서를 대상으로, 농촌어메니티자원 37종을 활용한 어메니티 관점으로 내용분석이 이루어졌다. 그 결과 환경자원과 자연자원을 포함한 자연적 자원의 경우(대기질, 수질, 비옥한 토양, 미기후, 지형 등) 141개로 17.6%를 차지하고 있는 것으로 나타났으며, 역사자원, 경관자원을 포함한 문화적 자원(문화재, 전통건조물, 신앙공간 등)의 경우 219개로 27.4%를 나타내었다. 또한 시설자원, 경제활동자원, 공동체활동자원을 포함하는 사회적 자원(공동생활시설, 기반시설, 도농교류활동, 생활공동체활동 등)인 경우 440개, 55%인 것으로 나타나 전체 39종의 교과서를 대상으로 어메니티 관점으로 하여 교과내용을 분석한 결과 총 800개가 수록되어 있는 것으로 분석되었다. 내용분석은 제시유형(문장, 사진, 삽화, 그래프, 표), 교육적 성격(준비학습, 내용이해, 기능습득, 실습활동, 문제해결, 태도형성, 기타)을 기준으로 분석하여 해당 내용이 농촌어메니티를 적절하게 표현하였는지에 따라 판정 여부를 제시하였다. 또한 교과서를 유형별로 구분하여 분석해 본 결과 A유형의 교과서는 9권으로 351개의 내용분석이 이루어졌고, B유형의 교과서는 16권으로 322개의 내용분석이 이루어졌으며, C유형의 경우 14권으로 127개의 내용분석이 이루어졌다. A와 B유형 교과서는 농촌어메니티를 나타낼 수 있는 교과서 내용 요소가 많은 유형이고, C유형은 주로 기술 및 관리 기법 등과 관련된 내용의 교과서였다. 제시유형별 교과내용을 분석한 결과 A유형의 교과서에는 사진 185, 문장 125, 삽화 24 순으로 나타났으며, B유형에는 사진 144, 문장 136, 삽화 37개, C유형에는 사진 57, 문장 55, 삽화 11개의 순으로 나타났다. 교육적 성격별 분석결과 A유형, B유형, C유형 두 내용이해,에 대한 교과내용이 절대적으로 우선순위를 나타냈으며, B유형의 경우 기능습득에 대한 교육적 성격도 다소 높은 것으로 분석되었다.

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Study on Enhancement of Ammonia Generation for Effective Collision Frequency (유효충돌빈도를 고려한 암모니아 생성 증대기법 연구)

  • Sejin Kim;Yongseok CHoi;Hyunchul Park
    • Journal of Aerospace System Engineering
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    • v.17 no.6
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    • pp.1-8
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    • 2023
  • Research, such as developing alternative energy in the transportation field, including aviation, is being actively conducted to solve the issue of current climate change. Interest in ammonia fuel as a carbon free energy (CFE) source is increasing due to the ease of liquefaction and transportation and similarity in energy density to that of methanol. However, explosiveness and toxicity of ammonia make it difficult to handle. Therefore, in this study, stable ammonia production was attempted using relatively easy-to-handle urea water solution (UWS). High temperature steam was used to promote the hydrolysis of ammonia. In order to determine the causes for ammonia production below the theoretical equivalent ratio, it was suggested that there were not enough collisions to promote the hydrolysis based on the kinetic theory of gases. The hydrolysis of unreacted isocyanic acid (HNCO) was tested according to the change in water supply. As a result, an increased amount of ammonia produced was confirmed. The increased amount of ammonia produced in a certain section was dependent on the steam temperature and the flow rate of water supplied.

Estimation and assessment of baseflow at an ungauged watershed according to landuse change (토지이용변화에 따른 미계측 유역의 기저유출량 산정 및 평가)

  • Lee, Ji Min;Shin, Yongchun;Park, Youn Shik;Kum, Donghyuk;Lim, Kyoung Jae;Lee, Seung Oh;Kim, Hungsoo;Jung, Younghun
    • Journal of Wetlands Research
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    • v.16 no.4
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    • pp.303-318
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    • 2014
  • Baseflow gives a significant contribution to stream function in the regions where climatic characteristics are seasonally distinct. In this regard, variable baseflow can make it difficult to maintain a stable water supply, as well as causing disruption to the stream ecosystem. Changes in land use can affect both the direct flow and baseflow of a stream, and consequently, most other components of the hydrologic cycle. Baseflow estimation depends on the observed streamflow in gauge watersheds, but accurate predictions of streamflow through modeling can be useful in determining baseflow data for ungauged watersheds. Accordingly, the objectives of this study are to 1) improve predictions of SWAT by applying the alpha factor estimated using RECESS for calibration; 2) estimate baseflow in an ungauged watershed using the WHAT system; and 3) evaluate the effects of changes in land use on baseflow characteristics. These objectives were implemented in the Gapcheon watershed, as an ungauged watershed in South Korea. The results show that the alpha factor estimated using RECESS in SWAT calibration improves the prediction for streamflow, and, in particular, recessions in the baseflow. Also, the changes in land use in the Gapcheon watershed leads to no significant difference in annual baseflow between comparable periods, regardless of precipitation, but does lead to differences in the seasonal characteristics observed for the temporal distribution of baseflow. Therefore, the Guem River, into which the stream from the Gapcheon watershed flows, requires strategic seasonal variability predictions of baseflow due to changes in land use within the region.