• Title/Summary/Keyword: Spatial indicator

Search Result 253, Processing Time 0.025 seconds

Use of Geographic Information System Tools for Improving Atmospheric Emission Inventories of Biogenic Source

  • Shin, Tae-joo
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
    • /
    • v.3 no.3
    • /
    • pp.151-158
    • /
    • 1999
  • Biogenic source emissions refer to naturally occuring emissions from vegetation, microbial activities in soil, lightening, and so on. Vegetation is especially known to emit a considerable amout of volatile organic compounds into the atmosphere. Therefore, biogenic source emissions are an important input to photochemical air quality models. since most biogenic source emissions are calculated at the county-level, they should be geographically allocated to the computational grid cells of a photochemical air quality model prior to running the model. The traditional method for the spatial allocation for biogenic source emissions has been to use a "spatial surrogate indicator" such as a county area. In order to examine the applicability of such approximations, this study developed more detailed surrogate indicators to improve the spatial allocation method for biogenic source emissions. Due to the spatially variable nature of biogenic source emissions, Geographic Information Systems(GIS) were introduced as new tools to develop more detailed spatial surrogate indicators. Use of these newly developed spatial surrogate indicators for biogenic source emission allocation provides a better resolution than the standard spatial surrogate indicator.indicator.

  • PDF

Development of Diagnostic Indicator in Fishing Villages by Spatial Scale (공간규모별 어촌지역 진단지표 개발)

  • Cho, Eun Jung;Oh, Yun Gyeong;Bae, Seung Jong;Kim, Soo Jin;Lee, Sang Hyun
    • Journal of Korean Society of Rural Planning
    • /
    • v.27 no.1
    • /
    • pp.9-20
    • /
    • 2021
  • In order to develop practical indicator that can diagnose the regional conditions and characteristics of fishing villages, this study reviewed domestic and foreign researches and selected the diagnostic indicator of fishing villages by spatial unit. The major categories are divided into population and society, economic conditions, and living conditions. The middle categories consists of population, household, industry, tourism, settlement, environment, safety, health and welfare, education, and culture and leisure. The indicator were selected with reference to the existence of statistical data officially provided according to the spatial range(Si/Gun, eup/myeon, village). Based on the selected indicator, the test evaluation was conducted in Jindo-gun, Jeollanam-do by applying data that can be obtained from KOSIS and web GIS. It is judged that the diagnostic indicator developed through this research can be used in various ways from the planning stage to the implementation stage of the regional development project, such as grasping the current conditions, setting improvement targets, promotion and evaluation/monitoring of the project. In addition, it is expected that it will be possible to carry out regional diagnosis for each spatial unit and to plan and implement regional development projects by giving priority to areas where the level of each department is insufficient.

Human Indicator and Information Display using Space Human Interface in Networked Intelligent Space

  • Jin Tae-Seok;Niitsuma Mihoko;Hashimoto Hideki
    • Journal of the Korean Institute of Intelligent Systems
    • /
    • v.15 no.5
    • /
    • pp.632-638
    • /
    • 2005
  • This paper describes a new data-handing, based on a Spatial Human Interface as human indicator, to the Spatial-Knowledge-Tags (SKT) in the spatial memory the Spatial Human Interface (SHI) is a new system that enables us to facilitate human activity in a working environment. The SHI stores human activity data as knowledge and activity history of human into the Spatial Memory in a working environment as three-dimensional space where one acts, and loads them with the Spatial-Knowledge-Tags(SKT) by supporting the enhancement of human activity. To realize this, the purpose of SHI is to construct new relationship among human and distributed networks computers and sensors that is based on intuitive and simultaneous interactions. In this paper, the specified functions of SKT and the realization method of SKT are explained. The utility of SKT is demonstrated in designing a robot motion control.

Use of Geographic Information System Tools for Improving Mobile Source Atrmospheric Emission Inventories

  • Shin, Tae-joo
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
    • /
    • v.3 no.3
    • /
    • pp.143-150
    • /
    • 1999
  • Mobile source emissions are important inputs to photochemical air quality models. Since most mobile source emissions are calculated at the county-level, these emission should be geographically allocated to the computational grid cells of a photochemical air quality model prior to running the model. The traditional method for the spatial allocation of these emissions has been to use a "spatial surrogate indicator" such as population, since grid-specific emission calculations are very labor-intensive and expensive, plus the necessary data are often not available for such grid resolutions. Accordingly, new spatial surrogate indicators for mobile source emissions(specifically for highway emissions) were developed using Geographic Information Systems(GIS) tools due to the spatially variable nature of mobile source emissions. These newly developed spatial surrogate indicators appear to be more appropriate for the allocation of highway emissions than the population surrogate indicator. It was also revealed that the conventional spatial allocation method underestimates the maximum levels of air pollutant emmissions.mmissions.

  • PDF

A Study on the Development of Evaluation Indicator for Architectural Design Quality Inhancement -Based on the Public Building- (건축 디자인품질향상을 위한 평가지표 개발에 관한 연구 -공공건축물을 대상으로-)

  • Lee, Ji-Eun;Ryu, Soo-Hoon;Koh, In-Lyong
    • Journal of The Korean Digital Architecture Interior Association
    • /
    • v.11 no.1
    • /
    • pp.15-22
    • /
    • 2011
  • The purpose of this study is to develop design quality indicator for improvement of public architecture in Korea. The spatial scope of the study which sees limited at 'domestic public buildings'. The study contents scope is to develop design quality indicator to use design phase and evaluation of 'public buildings'. For this design quality indicator, we have analysed various domestic and international institutions associated with architecture design. And, design indicator for the possibility of application in public buildings were extracted. Through this work design quality indicator specific and objective was drawn. The results of this study 8 category were drawn 'Public', 'Harmony', 'Impact', 'Access', 'Landscape', 'Use', 'Sustainable', 'Technology'. Also, 29 Design quality Indicator were suggested. Finally, this study was developed by utilizing Design Quality Indicator can be utilized in the design phase, the evaluation process should be developed.

Combining Geostatistical Indicator Kriging with Bayesian Approach for Supervised Classification

  • Park, No-Wook;Chi, Kwang-Hoon;Moon, Wooil-M.;Kwon, Byung-Doo
    • Proceedings of the KSRS Conference
    • /
    • 2002.10a
    • /
    • pp.382-387
    • /
    • 2002
  • In this paper, we propose a geostatistical approach incorporated to the Bayesian data fusion technique for supervised classification of multi-sensor remote sensing data. Traditional spectral based classification cannot account for the spatial information and may result in unrealistic classification results. To obtain accurate spatial/contextual information, the indicator kriging that allows one to estimate the probability of occurrence of classes on the basis of surrounding observations is incorporated into the Bayesian framework. This approach has its merit incorporating both the spectral information and spatial information and improves the confidence level in the final data fusion task. To illustrate the proposed scheme, supervised classification of multi-sensor test remote sensing data set was carried out.

  • PDF

Shannon Entropy as an Indicator of the Spatial Resolutions of the Morphologies of the Mode Patterns in an Optical Resonator

  • Park, Kyu-Won;Kim, Jinuk;Moon, Songky
    • Current Optics and Photonics
    • /
    • v.5 no.1
    • /
    • pp.16-22
    • /
    • 2021
  • We present the Shannon entropy as an indicator of the spatial resolutions of the morphologies of the resonance mode patterns in an optical resonator. We obtain each optimized number of mesh points, one of minimum size and the other of maximum one. The optimized mesh-point number of minimum size is determined by the identifiable quantum number through a chi-squared test, whereas the saturation of the difference between Shannon entropies corresponds to the other mesh-point number of maximum size. We also show that the optimized minimum mesh-point increases as the (real) wave number increases and approximates the proportionality constant between them.

A Study on the Development of Architectural Design Indicator for Small Public Building (소규모 공공건축물의 디자인 지표 개발에 관한 연구)

  • Ryu, Soo Hoon
    • KIEAE Journal
    • /
    • v.13 no.1
    • /
    • pp.83-92
    • /
    • 2013
  • Public buildings as a public space of the community have a close relationship with local residents and urban space. Public buildings are not a simple role as office space, but closely related to the life of the local residents. In addition, a variety of approaches, spatial, and program elements should be considered. Rising awareness for public buildings recently, aspect of design also has began to be interested. Small building is a public building that can actively cope with the social and economic environment in the rapid change. However, small building is lacking the design consideration according to the scale and economics. This paper is to present the Design Indicator that can be used to create 'small public buildings' that has been alienated from the large public buildings design development. This is intended to derive and utilize the design categories and design detail indicator of small public buildings. There are composition of design categories and design detail indicator of developed small public buildings. Design categories have developed six such as Public and Harmony, Access, Landscape Design, Space, Sustainable Design, Technique and Performance. Design Detail indicator of Small public buildings have developed all 24. Presented Design Categories and detail indicator are composed of design indicator available in all areas of design evaluation and review that includes design, function, environment, and technology of public buildings. And it is possible to apply with small public buildings in all purpose.

Trip Generation Model based on Geographically Weighted Regression (공간가중회귀분석을 이용한 통행발생모형)

  • Kim, Jin-Hui;Park, Il-Seop;Jeong, Jin-Hyeok
    • Journal of Korean Society of Transportation
    • /
    • v.29 no.2
    • /
    • pp.101-109
    • /
    • 2011
  • In most of the urbanized cities, socio-economic attributes tend to cluster as patterns of similarity in space, namely spatial autocorrelation, by agglomeration forces. The classical linear regression model, the most frequently adopted in the trip generation step, cannot sufficiently represent this effect. In order to take into account the effect properly, we need a model which adequately deals with the spatial dependence patterns. In this study, the Geographically Weighted Regression (GWR) model is adopted as an alternative method for the local analysis of relationships in multivariate data sets; that is GWR extends this traditional regression framework by estimating local rather than global parameters. This study shows the existence of spatial effects in the production and attraction of home base/non-home based trips through the GWR model using travel data collected in Daegu metropolitan area. Furthermore, LISA is employed to verify the fact that the local spatial autocorrelation exists.

Spatial Diffusion Patterns of the Organic Farms in Korea and the Geographical Characteristics (한국 친환경농업의 공간적 확산 양상과 그 지리적 함의)

  • Hyun, Ki-Soon;Lee, Keum-Sook
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.14 no.3
    • /
    • pp.377-393
    • /
    • 2011
  • This study aims to indicate the spatial characteristics of the changes in the Korean farm land. In particular, we analyze the spatial diffusion patterns of organic farms increasing rapidly with the growth in the agricultural product markets as well as the demand for safe food and sustainable growth. For the purpose, we examine the changes in the distribution patterns of organic farms between year 2000 and 2005. We analyze the agglomeration pattern by Location Quotient (LQ) and Local indicator of spatial association (LISA). Organic farms have been spread out from the outscuirts of Seoul, the capital city, to the traditional agriculture spetilized area in the southern parts of the nation. In order to analyze the relationships between organic farm distribution and the geographical variables affecting the organic farming, we develop multivariate regression models. Our findings indicate that organic farming is related with the number of agriculture-based business and information technique adaptation as well as the level of education and farmers age.

  • PDF