• 한국농림기상학회지
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• 제19권4호
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• pp.215-222
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• 2017

감귤 중 우리나라에서 가장 많은 면적을 차지하는 온주밀감(Citrus unshiu Marc.)과 '부지화'[Shiranuhi, (Citrus unshiu ${\times}$ C. sinensis) ${\times}$ C. reticulata]를 대상으로 1981년부터 2010년까지를 기준년도로 하여 2090년까지 잠재적 재배지 변화를 예측하였다. 재배지 변화는 국가농림기상센터와 기상청에서 제공하는 기상자료와 RCP 8.5 기후변화시나리오를 바탕으로 제작된 30m 해상도를 가진 농업용전자기후도를 이용하였다. 온주밀감의 잠재적 재배적지는 기준년도에서는 대부분 제주 지역이 해당되었으며, 재배가능지는 제주 동부지역과 남해안 일부지역이 포함되었다. 2030년대에는 온주밀감 재배적지는 증가하였으며 재배가능지도 전남지역의 해안 지역을 중심으로 증가하였다. 2060년대부터는 재배적지는 제주 산간과 전남과 경남, 강원도 해안지역으로 점차 증가하고 재배가능지도 경북, 충남, 전북 지역까지 확대되었다. '부지화' 감귤인 경우 기준년도에서 재배적지는 제주 해안 지역 일부만 포함되었으며 재배가능지는 제주지역과 전남 남해안 일부 지역만 해당되었다. 2030년대 재배적지는 현재 온주밀감 재배지가 해당되었으며 재배가능지도 남해안 일부 지역까지 북상하였다. 2090년대에는 재배적지가 점점 증가하여 제주지역 전체와 전남, 경남, 강원도 해안지역이 재배적지가 되었으며 재배가능지도 점점 해안가를 중심으로 북상하였다. 이상의 결과를 종합하여 RCP 8.5 기후변화시나리오를 근거로 감귤의 재배적지변화를 예측해 본 결과 온주밀감재배적지는 감소하고 '부지화' 감귤의 재배적지는 증가하는 것으로 나타났으며, 21세기 말에는 강원도 지역까지 감귤이 재배될 것으로 예측되었다.

• 농촌계획
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• 제10권3호
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• pp.1-7
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• 2004

The need for recreation and green-tourism seems to be enhanced greatly according to increasing income and leisure. The rural area and village should be developed and improved with a new direction as basic areas for the green-tourism. This study developed a new methodology to be able to find suitable areas for recreation and green-tourism using GIS and RS. The eight criteria for suitability evaluation of recreation area extracted by GIS and RS techniques from computerized map layers and satellite images have their weighting values, which are quantified by AHP method. The new finding methodology was applied to a study area, the Ansung city in Kyunggi province. The results showed that the suitable area with high score for the recreation and green-tourism were analyzed spatially near by ancient culture and water resources. The new findings enable decision makers to analyze spatially the suitability area of the recreation area and village improvement for the green-tourism.

• 신재생에너지
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• 제20권2호
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• pp.2-16
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• 2024

Various loads induced by marine environmental conditions, such as waves, currents, and wind, are crucial for the operation and viability of offshore wind power (OWP) systems. In particular, waves have a significant impact on the stress and fatigue load of offshore structures, and highly reliable design parameters should be derived through extreme value analysis (EVA) techniques. In this study, extreme wave analyses were conducted with various Weibull distribution models to determine the reliable design parameters of an OWP system suitable for the Ulsan area. Forty-three years of long-term hindcast data generated by a numerical wave model were adopted as the analyses data, and the least-squares method was used to estimate the parameters of the distribution function for EVA. The inverse first-order reliability method was employed as the EVA technique. The obtained results were compared among themselves under the assumption that the marginal probability distributions were 2p, 3p, and exponentiated Weibull distributions.

• 한국초지조사료학회지
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• 제40권4호
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• pp.265-273
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• 2020

We aimed to predict the Italian ryegrass (IRG) productivity change of introduced and domestic varieties based on climate factors and identify suitable areas for IRG cultivation using the RCP 8.5 scenario. The minimum mean air temperature in January showed the highest correlation with productivity. The ratio of possible and low productivity areas was high in Gangwondo, and the ratio of suitable and best suitable areas was relatively high in the central and southern regions in the past 30 years. The change in the IRG cultivation area was found to be 26.9% in the best suitable area between 1981-2010 but increased significantly to 88.9% between 2090s. In the IRG suitability comparison classes between domestic and introduced cultivars, the ratio of suitable and best suitable areas was relatively high in the domestic varieties during the past 30 years. However, there is almost no difference between the IRG domestic and introduced varieties in the IRG suitability classes after the 2050s. These results can predict changes in the IRG suitability classes between domestic and introduced cultivars according to the climate change scenario, but there are limitations in accurately predicting the productivity of IRG because the results may vary depending on other environmental factors.

• 대한원격탐사학회지
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• 제23권5호
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• pp.473-481
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• 2007

Joint Forest Management(JFM) is a concept of developing partnerships between fringe forest user groups and the Forest Department(FD) on the basis of mutual trust and jointly defined roles and responsibilities with regard to forest protection and development. In India, JFM was started during 1992 and it was implemented in many states. However success rate of JFM activity was not promising. Though there are many factors attributed to the failures, one of the main factors is the JFM site. This paper deals with the significant ground works to be done before planning for JFM using recent technologies such as remote sensing(RS) and Geographic Information System(GIS). Also it deals with the advantages of weighted overlay analysis in selecting suitable sites for JFM taking into consideration the various criteria. As a result of weighted overlay analysis, there were four types of suitability classes viz., less, moderate, highly and un-suitable. The moderately suitable class occupied maximum area(13209.64 ha) than less and highly suitable classes. If JFM is implemented on the suitability area, then the failure could be avoided in the future.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.353-364
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• 2011

This paper presents the ground behaviour of shield TBM lunching area during excavation. In order to perform this study, a scaled model test was carried out in the 1/45 scale for a field tunnel in practice where the tunnel had about 7.8 m diameter at Seoul Metro Line 9 construction site. The test to simulate earth pressure balance (EPB) shield TBM tunnelling at the lunching area was conducted with the developed small scaled shield TBM machine. Measurements were performed during simulation of excavation for total jacking thrust force, ground displacements and pressures. Based on the analysis of simulation results, the stability of ground was verified and evaluated. In particular, the suitable reinforcement range and methods are also suggested. In addition, these results are useful for engineers and technicians to select suitable and serviceable machine operation parameters and reduce environmental influence at all stages of tunnel construction.

• 산업기술연구
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• 제21권B호
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• pp.223-232
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• 2001

This study is finding the most appropriate model of kangwondo watershed. To synthesize each hydrograph, It is found to several parameters which are used in existing hydrographes. then the synthestic hydrograph is compared and investigated with many hydrographes of the rivers in kanwondo. These methods, Nakayasu, Clark, SCS are used to calculate the run-off of this watershed. When the calculated run-off is compared with real rating-curves, then it is found that the SCS method using the Clark's concentrantion time is the best way on this area having large watershed, long river length and gentle water slope, the Nakayasu method is more suitable on this area having small watershed, short river length and steep water slope. Also it is founded from analyzing run-off hydrographes, peak run-off and peak time that the Clark's method applied Kirpich's concentration time way is suitable in the area of kangwondo.

• 대한원격탐사학회지
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• 제31권4호
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• pp.331-336
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• 2015

In this study, a numerical model developed for sunshine duration based on GIS data was used. This model considers blocking caused by topography and buildings and it is properly applicable to evaluation of sunshine duration environment in urban areas. The model reasonably well predicted the solar altitude and azimuth angels, compared to those provided by Korea Astronomy and Space Science Institute (KASI). The developed model was applied to evaluation of sunshine duration environment around the Seonleung Park located near a building-congested area in Seoul. The model well reproduced shadow caused by buildings and/or topography in the numerical domain at 09:00 on August 1, 2015. In addition, the model was applied to finding a suitable measurement sites for pyrheliometer around the Seonleung Park. The model was also usefully applied to finding a suitable site for pyrheliometer in an urban area.

• Journal of Advanced Marine Engineering and Technology
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• 제34권6호
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• pp.894-905
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• 2010

바다숲 조성 해역에 대상 해조류의 최적 적지를 도출하기위해 서식지 평가 방법을 이용하였다. 서식지 평가 방법은 HEP(Habitat Evaluation Procedure)를 이용하여 대상 해조류가 서식하기에 적합한지를 고려하여 수행하였다. 그 결과 바다숲 조성 해역에서 바다숲을 시설하기에 최적으로 예측되는 곳을 계량적으로 선정할 수 있었으며, 적지 선정에는 수심의 변화에 따른 인자인 광조건과 파랑의 변화 여부가 적지의 공간적 변동에 가장 큰 영향을 주는 것으로 나타났다. 선정된 적지의 총 면적은 18ha로 분석되었으며, 서식 적합 지수(Habitat Suitability Index, HSI)에 의해 분석된 서식지의 질을 계량화한 결과 0.55~0.907(최고치는 1.0) 사이의 범위를 보였고, 선정된 적지가 등 수심선 방향을 따라 분포하고 있기 때문에 바다숲 조성지에 기반 시설인 해중림초를 투하할 때, 수심에 수평 방향의 띠 형태로 시설하는 것이 가장 바람직할 것으로 판단된다.

• 농촌계획
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• 제15권2호
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• pp.43-57
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• 2009

In aspect of stable housing support policy for the rural returning voluntary which is increasing rapidly, it is necessary to plan the suitable rural house. Therefore this paper aims to propose the suitable rural housing type and the directions of rural house planning. The 4-typical life style is summarized through the 531 cases-life style investigation of existing rural resident and the rural returning voluntary in the whole rural area. Based on the typical life style analysis, the suitable rural housing type and planning directions are proposed. I hope this paper will be a useful guide to make the suitable rural house have planning for our generation.