19 research outputs found

    (A) study on receptor concentration distribution by applying for grid size to ISCST3 air dispersion model.

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    ํ™˜๊ฒฝ๊ด€๋ฆฌํ•™๊ณผ/์„์‚ฌ[ํ•œ๊ธ€] ์‚ฐ์—…ํ™”์™€ ๋”๋ถˆ์–ด ๋Œ€๊ธฐ์˜ค์—ผ์€ ๋ณตํ•ฉํ™”, ์ง‘์ ํ™” ์–‘์ƒ์„ ๋ ๊ณ  ์žˆ์œผ๋ฉฐ, ์ธ๊ตฌ์˜ ๋„์‹œ์ง‘์ค‘ํ™”์™€ ํ•จ๊ป˜ ๋Œ€๊ทœ๋ชจ ์‚ฐ์—…๋‹จ์ง€ ์กฐ์„ฑ ๋“ฑ์œผ๋กœ ์ธํ•ด ๋Œ€๊ธฐ์˜ค์—ผ์ด ๋”์šฑ ๊ฐ€์†ํ™”๋˜๊ณ  ์žˆ๋Š” ์‹ค์ •์ด๋‹ค. ์ด๋Ÿฌํ•œ ๋Œ€๊ธฐ์˜ค์—ผ์˜ ํšจ๊ณผ์ ์ธ ๊ด€๋ฆฌ๋ฅผ ์œ„ํ•ด์„œ๋Š” ๋Œ€๊ธฐ์˜ค์—ผํ™•์‚ฐ๋ชจ๋ธ์„ ์ด์šฉํ•œ ๋Œ€๊ธฐ์˜ค์—ผ๋ฌผ์งˆ ํ™•์‚ฐ์˜ˆ์ธก์˜ ์ค‘์š”์„ฑ์ด ๋ถ€๊ฐ๋˜๊ณ  ์žˆ๋‹ค. ๋Œ€๊ธฐ์˜ค์—ผํ™•์‚ฐ๋ชจ๋ธ์˜ ์„ ์ •์€ ์˜ˆ์ธก์กฐ๊ฑด๊ณผ ๋Œ€์ƒ์˜ค์—ผ๋ฌผ์งˆ, ์˜ค์—ผ์›์˜ ์ข…๋ฅ˜, ๊ธฐ์ƒ์ž๋ฃŒ, ์ง€ํ˜•์ž๋ฃŒ ๋“ฑ์„ ์ข…ํ•ฉ์ ์œผ๋กœ ๊ณ ๋ คํ•˜์—ฌ ํŠน์„ฑ์— ๋งž๊ฒŒ ์„ ์ •๋˜์–ด์•ผ ํ•˜๋‚˜, ๋Œ€๊ธฐ์˜ค์—ผํ™•์‚ฐ๋ชจ๋ธ์˜ ํ•œ๊ณ„์ ,์ œํ•œ์ ์— ๋Œ€ํ•œ ๊ณ ๋ ค์—†์ด ๋Œ€๊ธฐ์˜ค์—ผํ™•์‚ฐ๋ชจ๋ธ์„ ์ ์šฉํ•˜์—ฌ ๋Œ€๊ธฐ์˜ค์—ผ์˜ˆ์ธก์„ ์‹ค์‹œํ•จ์œผ๋กœ์จ ๋‹ค์–‘ํ•œ ๋Œ€๊ธฐ์˜ค์—ผ์˜ ํŠน์„ฑ์„ ์ถฉ๋ถ„ํžˆ ๊ณ ๋ คํ•˜์ง€ ๋ชปํ•˜๊ณ  ์žˆ๋Š” ์‹ค์ •์ด๋‹ค. ์ด๋Ÿฌํ•œ ๋ฌธ์ œ์— ๋Œ€ํ•œ ๊ฐœ์„ ๋ฐฉ์•ˆ์˜ ๋„์ถœ์„ ์œ„ํ•ด ์„ ํ–‰์—ฐ๊ตฌ์—์„œ ๋‚˜ํƒ€๋‚œ ๋ฐ”์™€ ๊ฐ™์ด ๋‹ค๋ฅธ ๋ชจ๋ธ์— ๋น„ํ•ด ์˜ˆ์ธก๋ ฅ์ด ์šฐ์ˆ˜ํ•œ ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚œ ISCST3 ๋ชจ๋ธ์„ ๋Œ€์ƒ์œผ๋กœ ๊ฐ€์ƒ ์‹œ๋‚˜๋ฆฌ์˜ค๋ฅผ ์ž‘์„ฑํ•˜์—ฌ ๋ชจ๋ธ๋ง์„ ์‹ค์‹œํ•˜๊ณ  ์˜ˆ์ธก๊ฒฐ๊ณผ์˜ ๋ถ„ํฌ ๋ฐ ๋ณ€ํ™”ํŠน์„ฑ์˜ ๋ถ„์„์„ ํ†ตํ•ด ๋ชจ๋ธ์ด ๊ฐ€์ง€๋Š” ์ œํ•œ์  ์˜ ํ™•์ธ ๋ฐ ๊ฐœ์„ ๋ฐฉ์•ˆ์„ ์ œ์‹œํ•˜๊ณ ์ž ๋ณธ ์—ฐ๊ตฌ๋ฅผ ์ˆ˜ํ–‰ํ•˜์˜€๋‹ค. ๊ฐ ์‹œ๋‚˜๋ฆฌ์˜ค๋Š” ๋ฐœ์ƒ์› ๊ฒฉ์ž 3๊ฐ€์ง€์™€ ์ˆ˜์šฉ์  ๊ฒฉ์ž 5๊ฐ€์ง€๋ฅผ ๊ต์ฐจ ์กฐํ•ฉํ•˜์—ฌ ์ด 15๊ฐœ์˜ ์‹œ๋‚˜๋ฆฌ์˜ค๋ฅผ ๊ตฌ์„ฑํ•˜์˜€์œผ๋ฉฐ, ์ž…๋ ฅ๋ณ€์ˆ˜ ์‚ฐ์ •์„ ์œ„ํ•ด ์˜ˆ๋น„ ๋ชจ๋ธ๋ง์„ ํ†ตํ•ด ์ž…๋ ฅ๋ณ€์ˆ˜๋ฅผ ๊ฒฐ์ •ํ•˜์˜€๋‹ค. ์—ฐ๊ตฌ์ˆ˜ํ–‰๊ฒฐ๊ณผ ๋ฐœ์ƒ์› ๊ฒฉ์žํฌ๊ธฐ๋ฅผ ํฌ๊ฒŒ ์„ค์ •ํ•  ๊ฒฝ์šฐ ์ˆ˜์šฉ์  ๋†๋„๋„ ์ฆ๊ฐ€ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ์ตœ๋Œ€์ฐฉ์ง€๋†๋„๋ฅผ ๋ฐœ์ƒ์› ๊ฒฉ์ž๋ฉด์ ์œผ๋กœ ๋‚˜๋ˆˆ ๋‹จ์œ„ ๋ฉด์ ๋‹น ์ฐฉ์ง€๋†๋„ ์‚ฐ์ •๊ฒฐ๊ณผ ์‹œ๋‚˜๋ฆฌ์˜ค๋ณ„ ์ตœ๋Œ€ ์ฐฉ์ง€๋†๋„๋Š” ์œ ์‚ฌํ•œ ๊ฐ’์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ์‹œ๋‚˜๋ฆฌ์˜ค๋ณ„ ๋™์ผ๋ฉด์  ์ฐฉ์ง€๋†๋„ ๋ถ„์„๊ฒฐ๊ณผ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ 25ร—25m๋ฅผ ๊ธฐ์ค€์œผ๋กœ ๊ฒฉ์žํฌ๊ธฐ๊ฐ€ 50ร—50m์ธ ๊ฒฝ์šฐ ์˜ค์—ผ๋ฌผ์งˆ ๋†๋„๊ฐ€ 1.42๏ผ… ๊ฐ€์ค‘๋˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ, ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ 100ร—100m์˜ ๊ฒฝ์šฐ 5.03๏ผ…, ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ 200ร—200m์˜ ๊ฒฝ์šฐ 13.58๏ผ…, ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ ๊ธฐ 400ร—400m์˜ ๊ฒฝ์šฐ 80.58๏ผ… ์˜ค์—ผ๋ฌผ์งˆ๋†๋„๊ฐ€ ๊ฐ€์ค‘๋˜์–ด ๋‚˜ํƒ€๋‚ฌ๋‹ค. ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ์˜ ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ์ˆ˜์šฉ์  ๋†๋„์˜ ๊ฐ์†Œ์œจ์„ ๋ถ„์„ํ•œ ๊ฒฐ๊ณผ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ๋ฅผ์ž‘๊ฒŒ ์„ค์ •ํ•  ๊ฒฝ์šฐ ์ตœ๋Œ€์ฐฉ์ง€๋†๋„์—์„œ ํ•˜์œ„๋†๋„๋กœ์˜ ๊ฐ์†Œ์œจ์ด ๊ฐ์†Œํ•˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ์œผ๋ฉฐ,์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ๋ฅผ 200ร—200m ์ดํ•˜๋กœ ์„ค์ •ํ•˜์—ฌ ๋ชจ๋ธ๋ง์„ ์ˆ˜ํ–‰ํ•  ๊ฒฝ์šฐ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ ๋ณ€ํ™”์— ๋”ฐ๋ฅธ ์ˆ˜์šฉ์  ๋†๋„ ์˜ค์ฐจ๋ฅผ ์ค„์ผ ์ˆ˜ ์žˆ์„ ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋ฉด์˜ค์—ผ์›์„ ์ ์šฉํ•œ ๋Œ€๊ธฐ์˜ค์—ผ๋ฌผ์งˆํ™•์‚ฐ ์˜ˆ์ธก์‹œ ์˜ค์ฐจ์˜ ์ œ์–ด๋ฐฉ์•ˆ์œผ๋กœ๋Š” ๋ชจ๋ธ์ด ๊ฐ€์ง€๋Š” ํ•œ๊ณ„๋‚ด์—์„œ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ๋ฅผ ์ตœ๋Œ€ํ•œ ์„ธ๋ถ„ํ™”ํ•˜์—ฌ ๋ชจ๋ธ๋ง์„ ์‹ค์‹œํ•˜์—ฌ ์˜ˆ์ธกํŽธ์ฐจ๋ฅผ ์ตœ์†Œํ™”๋Š” ๋ฐฉ์•ˆ์ด ์žˆ์œผ๋ฉฐ, ์˜ˆ์ธก๋ฒ”์œ„๊ฐ€ ๊ด‘๋ฒ”์œ„ํ•˜์—ฌ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ๋ฅผ ์ถฉ๋ถ„ํžˆ ์ž‘๊ฒŒ ํ•˜์ง€ ๋ชปํ•  ๊ฒฝ์šฐ ์ˆ˜ ์šฉ์  ๊ฒฉ์žํฌ๊ธฐ์— ๋”ฐ๋ฅธ ์˜ค์—ผ๋ฌผ์งˆ์˜ ๊ฐ€์ค‘์œจ์„ ๊ณ ๋ คํ•˜์—ฌ ์ˆ˜์šฉ์  ๋†๋„์˜ ๋ณด์ • ๊ณผ์ •์„ ๊ฑฐ์น  ๊ฒฝ์šฐ ์ˆ˜์šฉ์  ๊ฒฉ์ž๋ฅผ ๋”์šฑ ์„ธ๋ถ„ํ™”ํ•˜์˜€์„ ๋•Œ์™€ ์œ ์‚ฌํ•œ ์˜ˆ์ธก๊ฒฐ๊ณผ์˜ ๋„์ถœ์ด ๊ฐ€๋Šฅํ•  ๊ฒƒ์œผ๋กœ ํŒ๋‹จ๋˜์—ˆ๋‹ค. ์ด์ƒ ์ œ์‹œํ•œ ์ ์ • ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ ์„ค์ •๋ฐฉ์•ˆ๊ณผ ์ˆ˜์šฉ์  ๊ฒฉ์žํฌ๊ธฐ ์„ธ๋ถ„ํ™” ๋ฐฉ์•ˆ๊ณผ ์ˆ˜์šฉ์  ๋†๋„์˜ ๋ณด์ •๋ฐฉ์•ˆ์„ ์ ์šฉํ•˜์—ฌ ๋Œ€๊ธฐ์˜ค์—ผ์˜ˆ์ธก์„ ์‹ค์‹œํ•  ๊ฒฝ์šฐ ๋ชจ๋ธ์ด ๊ฐ€์ง€๋Š” ์ œํ•œ์ ์„ ๊ฐœ์„ ํ•˜์—ฌ ๋”์šฑ ์ •ํ™•ํ•œ ๋Œ€๊ธฐ์งˆ ์˜ˆ์ธก์˜ ์œ ๋„๊ฐ€ ๊ฐ€๋Šฅํ•  ๊ฒƒ์ด๋‹ค. [์˜๋ฌธ] As the world becomes industrialized, the air pollution is taking on being complex and accumulation. Furthermore, as the population is concentrated on cities and large-scale industrial complexes are being built,air pollution is being accelerated .The significance emerges surrounding the forecasting on air pollutants dispersion using the air dispersion models. We need to select optimum air dispersion models that fit the air pollution features, in comprehensive consideration of forecasting conditions and target pollutants, the kind of pollution sources, meteorological data, topographical data, etc. However, when we perform air pollution forecasting, we have not given sufficient consideration to the limit and restriction of air dispersion distribution models, and then applied the models. Hence,we do not sufficiently take the air pollution characters into account. Through this paper, this researcher seeks to identify the limit of the models and present measures for improving it, as he drafted scenarios against the ISCST3 model deemed to have superior forecasting ability to other models as prior researches revealed, performed modeling, analyzed the forecasting result distribution and change characteristics. The author created a total of 15 scenarios by cross-combining three source grids with five receptor grids, and determined input variables through preliminary modeling. As a result of the research, it was revealed that the larger the source grid size was set, the more the receptor concentration increased.In addition, when the author calculated the receptor concentration per unit area by dividing the largest receptor concentrator by the source grid area, it was revealed that the largest concentration according to the scenarios was similar. The analysis of the receptor concentration per identical area by scenario revealed that, with the receptor grid size with 25 25m as the basis, the pollutants concentration increased 1.42๏ผ… with the grid size of 50 50m, 5.03๏ผ…with the size of 100 100m, 13.58๏ผ… with 200 200m, and 80.58๏ผ… with 400 400m, respectively. The analysis of the receptor concentration decrease ratio according to the change in the receptor grid size revealed that in case the receptor grid size was set as small, the decrease ratio from the largest receptor concentration to lower concentration was reduced, and that in case we set the receptor grid size below 200 200m and perform modeling, we can reduce the error in the receptor concentration according to the receptor grid size. When we forecast air pollutants dispersion applying asbestos pollution source, we can control and minimize the error in forecasting by maximizing the segmentation of the receptor grid size within the models limit and performing modeling. In case, with the forecasting scope extensive, we cannot sufficiently minimize the receptor grid size, and thus undergo the correction of the receptor concentration given the pollutants increase ratio according to the receptor grid size, we can induce forecasting results similar to those obtained when we have further segmented the receptor grid. In case we apply above-presented methods for setting optimum receptor grid size, methods for segmenting the receptor grid size, and methods for correcting the receptor concentration to perform the air pollution forecasting, then we can improve the limit of models and forecast the air quality more accurately.ope
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