• Title/Summary/Keyword: Regional climate

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Simulations of Summertime Surface Ozone Over the Korean Peninsula Under IPCC SRES A2 and B1 Scenarios (IPCC SRES A2와 B1 시나리오에 따른 한반도지역의 여름철 지표 오존의 수치모의)

  • Hong, Sung-Chul;Choi, Jin-Young;Song, Chang-Keun;Hong, You-Deog;Lee, Suk-Jo;Lee, Jae-Bum
    • Journal of Korean Society for Atmospheric Environment
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    • v.29 no.3
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    • pp.251-263
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    • 2013
  • The surface ozone concentrations changes were investigated in response to climate change over the Korean peninsula for summertime using the global-regional one way coupled Integrated Climate and Air quality Modeling System (ICAMS). The future simulations were conducted under the Intergovernmental Panel on Climate Change (IPCC) Special Report on Emissions Scenarios (SRES) A2 and B1 scenarios. The modeling system was applied for four 10-year simulations: 1996~2005 as a present-day case, 2016~2025, 2046~2055, and 2091~2100 as future cases. The results in this study showed that the mean surface ozone concentrations increased up to 0.5~3.3 ppb under the A2, but decreased by 0.1~10.9 ppb under the B1 for the future, respectively. However, its increases were lower than an increase of the average daily maximum 8-hour (DM8H) surface ozone concentrations which was projected to increase by 2.8~6.5 ppb under the A2. The DM8H surface ozone concentrations seem to be therefore far more affected by the climate and emissions changes than mean values. The probability of exceeding 60 ppb was projected to increase by 6~19% under the A2. In the case of B1, its changes were presented with an increase of 2.9% in the 2020s but no occurrence in the 2100s due to the effect of the reduced emissions. Future projection on surface ozone concentrations was generally shown to have almost the similar trend as the emissions of $NO_x$ and NMVOC.

A study on the Policy Instrument for Regional Innovation System Construction in the Mekong Delta Region

  • Hwangbo, Wonju;Park, Young Il
    • Asian Journal of Innovation and Policy
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    • v.10 no.1
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    • pp.39-67
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    • 2021
  • This study investigated the policy instruments pertinent to the establishment of a regional innovation system in the Mekong Delta that facilitates the development of a countermeasure towards various issues of industrial and technological nature. First, we conducted the research with regard to the status and environment of the region. Second, a field visiting survey was implemented to analyze the results of international efforts and regional capacity to solve the problems attendant upon introducing technologies related to the Fourth Industrial Revolution. Third, we derived the key policy issues and challenges from the results of the field visiting survey and experts' conference with a deep focus on technological transfer and international cooperation to enhance the capability in the science and technology field. Fourth, we conducted the opinion survey of the experts from Korea and Vietnam to converge local opinions from both countries and analyzed the results. The range of research subjects is responding to climate change, managing water resources, coordinating energy and industrial structure, making a resilient Mekong regional ecosystem, smartification of local cities, and improving the life quality of citizens, and so on. The results of this study are expected to be the beginning of fundamental research in the mid to long-term view of the Mekong Delta region innovation system of Korea and Vietnam and to evaluate the master plan.

A Regional Information analysis of Geumsan-gun, Chungnam (충남 금산군의 지역정보 분석)

  • Youn, In-Hyeok
    • The Journal of Information Technology
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    • v.10 no.3
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    • pp.121-129
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    • 2007
  • This study aimed at analyze the Regional Information of Geumsan-gun, Chung-Nam, Korea. The study area, the Geumsan-gun, is located in $35^{\circ}57'{\sim}36^{\circ}17'N$, $127^{\circ}19'{\sim}127^{\circ}39'E$. The Landforms, and Drainage network were analyzed from topographical maps on 1:25,000 & 1:50,000 and field survey. The Climate, Population, Economy, Transportation and etc. were analyzed from regional statistics. The results are as follows: The Centripetal forces of unit areas are not powerful because Geumsan-gun located contiguity with Daejeon metropolitan city. The accessibility of Geumsangun is good and is available for a site of specialized agriculture area.

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Development of Yeongdong Heavy Snowfall Forecast Supporting System (영동대설 예보지원시스템 개발)

  • Kwon, Tae-Yong;Ham, Dong-Ju;Lee, Jeong-Soon;Kim, Sam-Hoi;Cho, Kuh-Hee;Kim, Ji-Eon;Jee, Joon-Bum;Kim, Deok-Rae;Choi, Man-Kyu;Kim, Nam-Won;Nam Gung, Ji Yoen
    • Atmosphere
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    • v.16 no.3
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    • pp.247-257
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    • 2006
  • The Yeong-dong heavy snowfall forecast supporting system has been developed during the last several years. In order to construct the conceptual model, we have examined the characteristics of heavy snowfalls in the Yeong-dong region classified into three precipitation patterns. This system is divided into two parts: forecast and observation. The main purpose of the forecast part is to produce value-added data and to display the geography based features reprocessing the numerical model results associated with a heavy snowfall. The forecast part consists of four submenus: synoptic fields, regional fields, precipitation and snowfall, and verification. Each offers guidance tips and data related with the prediction of heavy snowfalls, which helps weather forecasters understand better their meteorological conditions. The observation portion shows data of wind profiler and snow monitoring for application to nowcasting. The heavy snowfall forecast supporting system was applied and tested to the heavy snowfall event on 28 February 2006. In the beginning stage, this event showed the characteristics of warm precipitation pattern in the wind and surface pressure fields. However, we expected later on the weak warm precipitation pattern because the center of low pressure passing through the Straits of Korea was becoming weak. It was appeared that Gangwon Short Range Prediction System simulated a small amount of precipitation in the Yeong-dong region and this result generally agrees with the observations.

Experimental Study on Developing of Double Facade System dealing with the various climatic Conditions (다양한 기후조건에 대응하는 이중외피시스템 개발에 관한 실험적 연구)

  • Lee, Keon-ho;Kim, Hyeon-soo;Jang, Dae-hee;Moon, Soo-young
    • KIEAE Journal
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    • v.5 no.2
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    • pp.19-26
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    • 2005
  • Every site has a different given geometrical and climatic condition, which influenced not only the lifestyle of the humanbeings but also the regional architecture. For example, on a cold region, the reduction of the energy loss is necessary, like an igloo, which has a littlest energy loss at hemisphere. Or on a warm region, the house must be protected thermally from the overheating at the sunshining. like a huge shading. An architectural interpretation in the (extreme) moderate climate, like Korea, has always tried to satisfy the both opposite demands simultaneously. A facade, which divides out- and inside, has an ideal position to lead the regulated regional climatic conditions into the room. The Double Facade System(DFS) is well known as an innovative solution in the european countries, like Germany. It provides an reasonable alternative, which can achieve these goals at the same time. A Double Facade System provides an effective sunshade, which means a cooling energy reduction at the warm season. In addition, it enables a natural ventilation at the cold season with the preheating at the system as well as spring and autumn. An ordinary Single Facade System with a inside or outside sun blind provides a solution just for a specified season, like a summer or winter. But the Double Facade System can deal with the various climatic conditions in the moderate climate.

Heating and Cooling Load according to the Climatic Conditions of Foreign Cities (해외 주요 도시의 기후특성에 따른 최대공조부하 요소별 분석)

  • An, Seung-Hyun;Kim, Jong-Ho;Lee, Jung-Hun;Lee, Sang-Yup;Song, Doo-Sam
    • Journal of the Korean Solar Energy Society
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    • v.34 no.5
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    • pp.81-87
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    • 2014
  • According to the domestic construction business will continue stagnant, many domestic construction companies are expanding their business into foreign countries. As results, building design guidelines including HVAC design for foreign countries considering the regional climate conditions are needed. Also, green building design strategies to minimize the heating and cooling load are key issue to win a contract in construction business in the world. In this study, peak heating and cooling loads were calculated for the representative cities in the world : Seoul, St. Petersburg, Singapore and Mecca. The analyzed building was a typical high-rise office building and the building envelope properties, indoor heat gain, residence and operating schedules were same in all cases. Only the weather conditions were different by cases.

A Study on the Spatial Organization of Gwangajung and Hyangdan - Focused on society·culture and consciousness of an architect - (관가정과 향단의 공간구성에 관한 연구 - 사회·문화 및 조영자의 의식을 중심으로 -)

  • Cho, Woo-Yong;Lee, Seok-Gweon
    • Journal of Industrial Technology
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    • v.30 no.A
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    • pp.119-126
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    • 2010
  • The special characters of traditional architecture has been formed suitably correspond with the purpose of usage and function, which was influenced with various environmental factors such as natural, social, physical, cultural and thoughtful. There was some differences in building placement and space composition according to the regional character such as climate, customs, and a gap of convention (long-established custom) and one's social position system and custom character of family. However, the essential characteristic of traditional architecture are nicely contain the era's architectural character. But these characters are developed or extinct according to the environmental factors. This paper is looking for the elements that formed social cultural element and background architect's thought. And, with the historical background, there are looking for Occupation. A traditional architecture had been formed correspond with the purpose of usage and function, which was influenced with physical nature environment elements such as regional character, climate, customs and social cultural environment elements such as government, economy, society, culture and thoughtful elements.

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Comparison and analysis of typical metrological data by in korea (대한민국의 지역별 표준기상데이터 비교분석)

  • Yoo, Ho-Chun;Noh, Kyoung-Hwan;Kang, Hyun-Gu;Shin, In-Hwan
    • 한국태양에너지학회:학술대회논문집
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    • 2009.11a
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    • pp.361-366
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    • 2009
  • Amid the crisis of global climate change, interest in low carbon and energy-saving building has been increasingly growing. Korea is likely to be designated as one of the countries subject to CO2 reduction under the 'Post-2012 Climate System' The efforts to minimize the building energy has been made and in line with the increasing need of low carbon and eco-friendly building, a demand for building evaluation programs has been on the rise. However, the metro logical data which is necessary for such program has not been effectively provided and moreover, the source, calculation method and period remain uncertain. This study was intended to evaluate the regional typical metro logical data (ISO TRY) provided by Korean Solar Energy Society and compile the month of test reference years (TRY), and analyze the regional weather using dry-bulb temperature, wet-bulb temperature and solar irradiance which are regarded the representative metro logical data.

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The 2021 Australian/New Zealand Standard, AS/NZS 1170.2:2021

  • John D. Holmes;Richard G.J. Flay;John D. Ginger;Matthew Mason;Antonios Rofail;Graeme S. Wood
    • Wind and Structures
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    • v.37 no.2
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    • pp.95-104
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    • 2023
  • The latest revision of AS/NZS 1170.2 incorporates some new research and knowledge on strong winds, climate change, and shape factors for new structures of interest such as solar panels. Unlike most other jurisdictions, Australia and New Zealand covers a vast area of land, a latitude range from 11° to 47°S climatic zones from tropical to cold temperate, and virtually every type of extreme wind event. The latter includes gales from synoptic-scale depressions, severe convectively-driven downdrafts from thunderstorms, tropical cyclones, downslope winds, and tornadoes. All except tornadoes are now covered within AS/NZS 1170.2. The paper describes the main features of the 2021 edition with emphasis on the new content, including the changes in the regional boundaries, regional wind speeds, terrain-height, topographic and direction multipliers. A new 'climate change multiplier' has been included, and the gust and turbulence profiles for over-water winds have been revised. Amongst the changes to the provisions for shape factors, values are provided for ground-mounted solar panels, and new data are provided for curved roofs. New methods have been given for dynamic response factors for poles and masts, and advice given for acceleration calculations for high-rise buildings and other dynamically wind-sensitive structures.

Latitude and Altitude Affects the Distribution and Population Features of Osmia spp. in Korea

  • Kyu-Won Kwak;Young-Bo Lee;Kathannan Sankar;Su Jin Lee;Kyeong Yong Lee
    • International Journal of Industrial Entomology and Biomaterials
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    • v.48 no.1
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    • pp.48-58
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    • 2024
  • Reports of a global decline in pollinator populations, especially mason bees, have raised concerns regarding the maintenance of pollination interactions. Although addressing local factors causing bee decline is a potential mitigation strategy at the landscape scale, regional rates and high-latitude threats to bee diversity are unclear. We investigated the distribution of mason bees (Osmia. spp. (O. pedicornis, O. corniforns, O. taurus, and O. satoi) and measured species richness and species ratios at regional, latitudinal, and altitudinal scales. We examined the association between bee species richness and three putative environmental conditions: high-low, altitude-dependent, and latitude-dependent. The species richness of the O. pedicornis bee was the highest and it was found between latitudes 35° and 37°, and at 500-600 m in both the northern and southern hemispheres, showing an inverse latitudinal gradient of bee species richness in South Korea. Mason bee species richness and global climate are important predictors of flowering plant diversity. Climate change threatens bee and vascular plant diversity; however, the overlap between bee abundance and plant diversity can be improved by employing suitable conservation strategies.