• Title/Summary/Keyword: Climate Elements

Search Result 314, Processing Time 0.026 seconds

Impact of Climate Change on Food Safety: A Mini-review (기후변화와 식품안전에 관한 소고)

  • Kim, Jong-Gyu;Kim, Joong-Soon
    • Journal of Environmental Health Sciences
    • /
    • v.42 no.6
    • /
    • pp.465-477
    • /
    • 2016
  • Objectives: This review examined the scientific evidence regarding the impact of climate change on food safety. Methods: The impact of climate change on food safety was assessed based on a survey of related publications reported in the past 20 years. The terms used for literature selection reflect three aspects: climate change; food; and food safety. Results: Climate change is expected to affect the key elements of food production - water and climate. These impact on food safety through many different pathways. Directly, food shortages according to the population grovoth result in a food security/food supply problem, These relationships are commonly understood. The indirect impacts include an increase in food-borne diseases and pathogens, increased mycotoxin production, and increased risk of pesticide residues in foods due to greater use of pesticides in response to warming and increased precipitation and the accompanying diseases in certain crops. Field studies and statistical and scenario analyses were performed to provide evidence. However, quantification of these relationships is still lacking. Conclusion: Adaptation measures at the local and community levels are essential since the pressures from weather and climate events may differ according to region and sector. It is recommended that we go beyond empirical observations of the association between climate change and food safety and develop more scientific explanations. We also need to explore alternative materials for bioenergy demands in order to improve sustainability.

The Estimation of Non-Working days for the Construction Project in Incheon Region (기후요소를 고려한 인천지역의 작업불가능일수 산정)

  • Shin Jong-Hyun;Lee Jin-Ah;Lee Chan-Sik
    • Korean Journal of Construction Engineering and Management
    • /
    • v.6 no.1 s.23
    • /
    • pp.58-64
    • /
    • 2005
  • We should consider climatic factors influencing construction works in order to estimate construction time correctly. This study is to analyze climate elements affecting construction duration and to calculate non-working days far Inchoen territorial region. Through surveying literatures and examining several existing criteria we suggest a Proper criteria for each climate elements which would be used for estimating non-working days. The criteria is made on the raw climate data of Meteorological Administration during the last 30 years(1974-2003) far Incheon region. In case of rainfall, it is estimated as non-working days when daily precipitation is expected more than 10mm, its number of days for Incheon is 29 days. In case of low temperature, the number of non-working days for the concrete works(its criteria be below $4^{\circ}C$ average) and the finishing works(below $0^{\circ}C$ average) is 97 days, 52 days, respectively. In case of high temperature, it is three days when daily highest temperature is expected going over $32^{\circ}C$

An Analysis of Fatal Accident in Construction Field for Climate Factor and Its Management Plan (기후요소에 따른 건설현장의 사망재해 실태분석 및 관리방향)

  • Shin, Won-Sang;Lim, Gun-Ju;Son, Chang-Baek
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2016.05a
    • /
    • pp.70-71
    • /
    • 2016
  • Recently, the climate change due to global warming, heat wave, heavy snow etc., is rapidly progressing all over the world. This kind of climate change is judged to be affecting a lot in construction industry which has characteristic of outdoor industry. Therefore this study, to prevent death disaster occurring by climate elements at construction site, quantitatively analyzed real condition of death disaster on construction site and suggests basic management direction which to be conducted on the site.

  • PDF

기후적 질서로 본 오대산 선식물상

  • 정영호
    • Journal of Plant Biology
    • /
    • v.4 no.2
    • /
    • pp.33-40
    • /
    • 1961
  • The moss flora and it's geoecological study were made on Mt. Odae which is situated in the easterm part(37$^{\circ}$43'N. Lat., 128$^{\circ}$30' E. Long) of Korea. The total number ofmosses collected on Mt. Odae in the autumn of 1960 is 50 species, 1 varieties and 1 subspecies, belonging to 23 families. For climate index, Warmth index and Humidity index were calculaterd on Mt. Odae. From the result, it was known that the climate of Mt. Odae is Humid temperate climate and that it's vegetation zone is Deciduous broad-leaf forest zone. Moss Quotient of this mountain is 1.21 and it indicates that the plant climate of Mt. Odae is Hemicryptophytic climate. The moss flora of this mountain was discussed from the pnytogeographical point of view. The flora consists of the following elements: Holarctic element : 20 species (38.5%) North Pacific element: 1 (1.9%) Cosmopolian element: 6 (11.6%) Tropical element: 1 (1.9%) East Asiatic element: 12 (23.05%) Korean-Japan element: 12 (23.05%) Coefficient of closeness was also calculated between the moss flora of Mt. Odae and that of Mt. Sulak and Mt. Kwanak. It was known, therefore, that the flora relation between Mt. Odae and the Mt. Sulak was closer than that between Mt. Odae and Mt. Kwanak.

  • PDF

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
    • /
    • v.30 no.A
    • /
    • pp.119-126
    • /
    • 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.

  • PDF

Evaluation of Typical Solar Radiation Data by the TRY Methodology (TRY 방법론에 의한 표준일사량데이터 평가)

  • Yoo, Ho-Chun;Lee, Gwan-Ho;Kim, Kyoung-Ryul;Park, So-Hee
    • KIEAE Journal
    • /
    • v.7 no.6
    • /
    • pp.23-28
    • /
    • 2007
  • Limited fossil fuels and unstable energy supply are considered as one of the critical problems in architecture requiring large amounts of energy. In order to this challenge, environment-friendly architecture design is required. Clear data should be prepared to apply solar energy to architecture aggressively and properly. This study used FS statistical analysis data regarding average daily solar radiation of Seoul observed over 20 years to find out standard year and standard daily solar radiation. This study also aims to compare and evaluate an appropriate method of selecting a standard year which is too close to measurement value through comparison and analysis with daily solar radiation acquired by applying overseas researchers' suggesting weight factor. As a result, the data nearest to measurement value of daily solar radiation was UK CIBSE TRY(TYPE 2) displaying 0.100in t-statistic index. For UK CIBSE TRY(TYPE 2), weight factor was applied to three climatic elements except relative humidity. TYPE 1 and TYPE 3 recorded 0.343 and 0.367, respectively, showing higher record of t-statistic than TYPE 2. TYPE 1 was calculated through FS statistical value of single data about daily solar radiation with other climatic elements excluded. For TYPE 3, relative humidity was added to TYPE 2. In particular, since TYPE 2 was closer to the measurement value compared to the others, it is necessary to consider relationship with other climate elements if other climate elements are added.

The Analysis of the Learning Elements in 'Curriculum Reconstruction' of Elementary Pre-service Teachers in Connection with 'The Weather and Our Daily Life' ('날씨와 우리 생활'과 연계한 초등예비교사들의 '교육과정 재구성' 학습요소 분석)

  • Kim, Hae-Ran;Lee, Yong-Seob
    • Journal of the Korean Society of Earth Science Education
    • /
    • v.14 no.2
    • /
    • pp.202-211
    • /
    • 2021
  • The purpose of this study is to find out the Learning elements in 'Curriculum Reconstruction' of Elementary Pre-service Teachers in Connection with 'The weather and our daily life'. The pre-service teachers who participated in the study formed a research group of 29 students in 2nd grade who are attending the first semester of A university of education and taking courses in 'teaching research 1'. Participants described the learning topics and contents they would like to add to curriculum 'The weather and our daily life'. Each response was analyzed and classified based on scientific terms related to weather or climate. The results of the study were as follows. First, there were three learning topics related to weather, such as water phenomena in the atmosphere, fine dust and yellow dust phenomena, and light or electricity phenomena, and two topics related to climate such as abnormal climate and global warming. Second, interest in the problem of fine dust and yellow dust in the atmosphere was relatively high. Third, the interest in learning in the knowledge area was relatively higher than in the learning in the function or attitude area. Through these research results, it can be confirmed that it is necessary to develop a climate change or climate crisis education program.

A Simulation Study on Future Climate Change Considering Potential Forest Distribution Change in Landcover (잠재 산림분포 변화를 고려한 토지이용도가 장래 기후변화에 미치는 영향 모사)

  • Kim, Jea-Chul;Lee, Chong Bum;Choi, Sungho
    • Journal of Environmental Impact Assessment
    • /
    • v.21 no.1
    • /
    • pp.105-117
    • /
    • 2012
  • Future climate according to land-use change was simulated by regional climate model. The goal of study was to predict the distribution of meteorological elements using the Weather Research & Forecasting Model (WRF). The KME (Korea Ministry of Environment) medium-category land-use classification was used as dominant vegetation types. Meteorological modeling requires higher and more sophisticated land-use and initialization data. The WRF model simulations with HyTAG land-use indicated certain change in potential vegetation distribution in the future (2086-2088). Compared to the past (1986-1988) distribution, coniferous forest area was decreased in metropolitan and areas with complex terrain. The research shows a possibility to simulate regional climate with high resolution. As a result, the future climate was predicted to $4.5^{\circ}$ which was $0.5^{\circ}$ higher than prediction by Meteorological Administration. To improve future prediction of regional area, regional climate model with HyTAG as well as high resolution initial values such as urban growth and CO2 flux simulation would be desirable.

Characteristics of PM Chemical Component during Haze Episode and Asian Dust at Gwang-ju (광주지역 고농도 및 황사 시의 미세먼지 화학적 성분 특성)

  • Lee, Yeong-Jae;Jung, Sun-A;Jo, Mi-Ra;Kim, Sun-Jung;Park, Mi-Kyung;Ahn, Joon-Young;Lyu, Young-Sook;Choi, Won-Jun;Hong, You-Deog;Han, Jin-Seok;Lim, Jae-Hyun
    • Journal of Korean Society for Atmospheric Environment
    • /
    • v.30 no.5
    • /
    • pp.434-448
    • /
    • 2014
  • The aerosol characteristics between haze episode and Asian dust event were identified in January and March, 2013 in Gwang-ju of Korea to investigate the metal elements, ionic concentrations and carbonaceous particles of $PM_{2.5}$ and $PM_{10}$. In the haze episode, the concentrations were increased 1~3.2 times of ionic species and 1.6~2.7 of metal elements. Especially, the concentration of $NO{_3}{^-}$, $SO{_4}{^2-}$ and $NH{_4}{^+}$ consists of 50 percent in ionic species during haze episode that was higher than Asian dust event. This suggests that secondary aerosols from anthropogenic air pollution were mainly contributed by haze episode. During the Asian dust event, increase of metal concentrations was higher than haze episode because of remarkable increase of Ti, K and Fe originated from soil. The concentrations of carbonaceous particles were increased 2.5 times during haze episode, and 2.4 times of OC and 2.1 times of EC during Asian dust event in $PM_{2.5}$. However, these aerosol mass concentration does not affect the OC/EC ratio. The average equivalence ratios of cations/anions in $PM_{2.5}$ were 0.99 in haze episodes and 0.94 during non-event day. The neutralization factor of $NH_3$ was higher than that of $CaCO_3$. Futhermore, $NH{_4}{^+}$ aerosol was aged due to atmospheric stagnation that might be affected by the haze episode.