• Title/Summary/Keyword: meteorological elements

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The Study of Correlation between Pattern Identification of Stroke Patients and Meteorological Elements (중풍 환자 변증과 기후 요소와의 상관성에 관한 연구)

  • Ma, Mi-Jin;Han, Chang-Ho
    • The Journal of Internal Korean Medicine
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    • v.30 no.1
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    • pp.200-211
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    • 2009
  • There are many reports about correlations between meteorological elements and stroke. In Oriental medicine, it is recognized that the weather affects the human body and diseases, but there are few studies about the correlation between meteorological elements and pattern identification of stroke. 105 stroke patients classified into fire-heat pattern or dampress-phlegm pattern were registered during the study period. We took the measurement of each meteorological element (atmospheric pressure, temperature, humidity, wind speed) according to pattern identification and analyzed pattern identification into two groups according to mean of each meteorological element during the study period. Mean temperature was higher with the heat-fire pattern than with the dampness-phlegm pattern. Heat-fire pattern also had higher frequency when temperature was higher than mean temperature. There was no correlation between atmospheric pressure, relative humidity, or wind speed and pattern identification.

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A Trend Analysis of Meteorological Elements in the Main Producing Areas of Vegetables (채소 주산지의 기상요소별 경향성 분석)

  • Kim, Yong Seok;Shim, Kyo Moon;Jung, Myung Pyo;Choi, In Tae
    • Journal of Climate Change Research
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    • v.6 no.4
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    • pp.283-290
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    • 2015
  • This study was carried out a trend analysis for analyzing change of meteorological elements in the main producing areas of Chinese cabbage, radish, pepper, garlic and onion. As meteorological elements, we selected air temperature (maximum, minimum), precipitation and duration of sunshine. We used monthly data of meteorological elements obtained from the main producing areas of vegetables for 30 years from 1981 to 2010. Mann-Kendall test used for significance test of trend and Sen's estimator of slope for computing the variance of meteorological elements. The study results showed that air temperature tended to increase, but duration of sunshine tended to decrease in most regions.

Variations in Root and Tuber Crops Production due to Climate Change

  • Hwang, Sung-Eun;Chon, Chun-Hwang;Park, Geon-Young
    • Journal of Integrative Natural Science
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    • v.8 no.2
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    • pp.135-140
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    • 2015
  • Climate change which occuring the recent abrupt fluctuations in meteorological and climatological elements is bound, brings about more significant impacts and changes in human life One of the most important problems due to the impacts of climate change tends to have been decreased the food production, which is expected to make crop resources more and more important. Accordingly, agricultural meteorology should also become more important. In this study, the correlation between meteorological elements and root and tuber crops (potatoes and sweet potatoes), which are emergency crops, and meteorological elements were analyzed, and the impacts of climate changes on the production of such crops were examined. This study concludes that agriculture and food resources are important, and suggests that we should prepare for changes in crops, the weaponization of food, and the lack of water resources in the future. The meteorological element and crops element correlation analysis results. Sweet potatoes, which are negatively influenced by climate change, need breeding improvement and cultivation method development, and potatoes, which are positively influenced by climate change, require preparations for climate changes that exceed the climatic limit. The variations of agricultural production contributed to changes in crop production. Therefore, the importance of agricultural meteorology and the food crop industry should be fully recognized to prepare for climate change.

Statistical Analysis of the Meteorological Elements for Ozone and Development of the Simplified Model for Ozone Concentration (오존 농도에 영향을 미치는 주 기상요소의 도출 및 예측모형 수립)

  • 전의찬;우정헌
    • Journal of Korean Society for Atmospheric Environment
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    • v.15 no.3
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    • pp.257-266
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    • 1999
  • In order to analyze the effect of meteorological elements on ozone concentration, we carried out cross-correlation of the elements with ozone concentraton, and time series analysis on them. As a result, it revealed that temperature, wind speed and humidity are not independent variables with ozone concentrations, and also, solar radiation and mixing height are the major elements that affect them. We developed models for ozone with solar radiation and mixing height as dependent variables to verify the effect of major meteorological elements. The predicted ozone concentration has strong correlation coefficients, So, We could conclude that we can predict ozone concentreation only with solar raidation and mixing height as dependents.

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Effects of Meteorological Elements in the Production of Food Crops: Focused on Regression Analysis using Panel Data (기상요소가 식량작물 생산량에 미치는 영향: 패널자료를 활용한 회귀분석)

  • Lee, Joong-Woo;Jang, Young Jae;Ko, Kwang-Kun;Park, Jong-Kil
    • Journal of Environmental Science International
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    • v.22 no.9
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    • pp.1171-1180
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    • 2013
  • Recent climate change has led to fluctuations in agricultural production, and as a result national food supply has become an important strategic factor in economic policy. As such, in this study, panel data was collected to analyze the effects of seven meteorological elements and using the Lagrange multipliers method, the fixed-effects model for the production of five types of food crop and the seven meteorological elements were analyzed. Results showed that the key factors effecting increases in production of rice grains were average temperature, average relative humidity and average ground surface temperature, while wheat and barley were found to have positive correlations with average temperature and average humidity. The implications of this study are as follow. First, it was confirmed that the meteorological elements have profound effects on the production of food crops. Second, when compared to existing studies, the study was not limited to one food crop but encompassed all five types, and went beyond other studies that were limited to temperature and rainfall to include various meterological elements.

Development of Garlic & Onion Yield Prediction Model on Major Cultivation Regions Considering MODIS NDVI and Meteorological Elements (MODIS NDVI와 기상요인을 고려한 마늘·양파 주산단지 단수예측 모형 개발)

  • Na, Sang-il;Park, Chan-won;So, Kyu-ho;Park, Jae-moon;Lee, Kyung-do
    • Korean Journal of Remote Sensing
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    • v.33 no.5_2
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    • pp.647-659
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    • 2017
  • Garlic and onion are grown in major cultivation regions that depend on the crop condition and the meteorology of the production area. Therefore, when yields are to be predicted, it is reasonable to use a statistical model in which both the crop and the meteorological elements are considered. In this paper, using a multiple linear regression model, we predicted garlic and onion yields in major cultivation regions. We used the MODIS NDVI that reflects the crop conditions, and six meteorological elements for 7 major cultivation regions from 2006 to 2015. The multiple linear regression models were suggested by using stepwise regression in the extraction of independent variables. As a result, the MODIS NDVI in February was chosen the significant independent variable of the garlic and onion yield prediction model. In the case of meteorological elements, the garlic yield prediction model were the mean temperature (March), the rainfall (November, March), the relative humidity (April), and the duration time of sunshine (April, May). Also, the rainfall (November), the duration time of sunshine (January), the relative humidity (April), and the minimum temperature (June) were chosen among the variables as the significant meteorological elements of the onion yield prediction model. MODIS NDVI and meteorological elements in the model explain 84.4%, 75.9% of the garlic and onion with a root mean square error (RMSE) of 42.57 kg/10a, 340.29 kg/10a. These lead to the result that the characteristics of variations in garlic and onion growth according to MODIS NDVI and other meteorological elements were well reflected in the model.

Prevention Meteorological Database Information for the Assessment of Natural Disaster (자연재해 평가를 위한 방재기상 DB 정보)

  • Choi, Hyo-Jin;Park, Jong-Kil;Jung, Woo-Sik
    • 한국방재학회:학술대회논문집
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    • 2007.02a
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    • pp.315-318
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    • 2007
  • In order to reduce the amount of damage from natural disasters, we needs prevention meteorological database classified into the cause of disaster, damage elements etc. For this, we have analyzed four data, such as Statistical yearbook of calamities issued by the National Emergency Management Agency and Annual Climatological Report issued by the Korea Meteorological Administration and Recently 10 years for natural disaster damage and Statistics Yearbook from the Ministry of Government Administration and Human affairs. Through the analysis of disaster data, we have selected input variables, such as causes and elements, occurrence frequencies, vulnerable areas of natural disaster, etc. In order to reduce damage from natural disaster, the prevention activities and forecasting based on meteorological parameters and damage datas are required. In addition, it is necessary to process meteorological information for disaster prevention activities. Through these procedure, we have established the foundation of database about natural disasters. This database will be used to assess the natural disasters and build risk model and natural disasters mitigation plan.

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Anslysis of Relationship between Reasons for Mereorological Change and Crime (기상변화요인과 범죄발생의 관계분석)

  • Kim, JongMin;Kim, MinSu;Yoo, SeungJae;Lee, DongHwi
    • Convergence Security Journal
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    • v.12 no.6
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    • pp.107-113
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    • 2012
  • This study examined relationship between the major five crimes(murder, robbery, rape, theft and violence) and elements of meteorological change(weather, temperature, precipitation, wind velocity and humidity). Elements of meteoro logical change corresponding to the date recorded by a meteorological office and the number of occurrences from January $1^{st}$ 2010 to October $19^{th}$ 2012 collected from major portal sites were used for this study. Based on this data, SPSS 12.0 was utilized to analyze relationship between crimes and elements of meteorological change, allowing us to find out relationship between crimes and elements of meteorological change. This analysis finding is sure to pave the way for research of this field.

Determining the Warming Effect Induced by Photovoltaic Power Plants in neighboring Region Using an Analytical Model (해석학적 모델을 이용한 태양광 발전소 주변 지역의 기온 상승 추정 연구)

  • Kim, Hae-Dong;Huh, Kyong-Chun;Kim, Ji-Hye
    • Journal of Environmental Science International
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    • v.27 no.3
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    • pp.227-231
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    • 2018
  • We studied the warming effect induced by Photovoltaic(PV) power plants in rural areas during summer daytime using a simple analytical urban meteorological model. This analysis was based on observed meteorological elements and the capacity of the PV power plant was 10 MWp. The major axis length of the PV power plant was assumed to be 1km. Data of the necessary meteorological elements were obtained from a special meteorological observation campaign established for a over a PV power plant. We assumed that the wind flowed along the major axis of the PV power plant(1 km). As a result, the air temperature on the downwind side of the PV power plant was estimated to invrease by about $0.47^{\circ}C$.

The Meteorological, Physical, and Chemical Characteristics of Aerosol during Haze Event in May 2003 (2003년 5월의 연무 관측시 에어로졸의 기상 · 물리 · 화학 특성)

  • Lim, Ju-Yeon;Chun, Young-Sin;Cho, Kyoung-Mi;Lee, Sang-Sam;Shin, Hye-Jung
    • Journal of Korean Society for Atmospheric Environment
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    • v.20 no.5
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    • pp.697-711
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    • 2004
  • Severe haze, mist, and fog phenomena occurred in the central part of Korea during 15~25 May 2003 resulted in poor visibility and air quality. When these phenomena occurred, Korean peninsula was under the effects of anticyclone. The atmosphere was stable, and wind speed was so weak. Under this meteorological conditions, air quality was worse and worse. The characteristics of aerosol in Seoul, Incheon, and Gosan (Jeju) during this period are investigated from the $PM_{10}$. TSP concentrations and aerosol number concentrations. Concentrations of $PM_{10}$ and TSP measured at KMA increased upto 176 and 230 J.${\mu}g/m^3$ on 22 May 2003, respectively. Aerosol number concentrations of size range from 0.82 to 6.06 ${\mu}m$ increased in Seoul on 17, 19, and 21~24 May 2003, and the concentrations of $NO_2$ and $SO_2$had maximum value of 0.165 ppm at Gwanak Mt. and 0.036 ppm at Guro-dong on 23 May 2003, respectively. Result from analysis on heavy metal elements showed high concentrations of Zn, Pb, Cr, Ni, Cu, and Cd during 20~24 May 2003. This event is examined by comprehensive analyses of synoptic weather conditions, satellite images, concentrations of suspended particles and air pollutants, and heavy metal elements.