• 한국주거학회논문집
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• 제12권2호
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• pp.87-95
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• 2001

The number of people working in their own home has been increasing, and this will change the form of house. Therefore, it is necessary to plan the new house for the people working at home, and to offer business related working area. This study was designed to know the office workers preference for spatial characteristics of home office. Data were collected through a questionnaire survey. The subject were 257 office workers living in Seoul area. Frequency, percentage, and MM2 : $\textrm{X}^2$-test were used. The results showed that the place for home-office should be located independently inside house. The desirable size for the home-office might be 3-4 pyung. If the place for home-office share with other places, livingroom of bedroom, it is necessary to develop furniture and partition matching with residential furniture and atmosphere. Office workers prefer U-shaped workstation and coner-shaped workstation.

• 대기
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• 제22권3호
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• pp.299-307
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• 2012

This study is aimed to validate errors for detected suspicious temperature data using various quality control procedures for 61 weather stations in the Republic of Korea. The quality control algorithms for temperature data consist of four main procedures (high-low extreme check, internal consistency check, temporal outlier check, and spatial outlier check). Errors of detected suspicious temperature data are judged by examining temperature data of nearby stations, surface weather charts, hourly temperature data, daily precipitation, and daily maximum wind direction. The number of detected errors in internal consistency check and spatial outlier check showed 4 days (3 stations) and 7 days (5 stations), respectively. Effective and objective methods for validation errors through this study will help to reduce manpower and time for conduct of quality management for temperature data.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 춘계학술발표대회 논문집
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• pp.196-202
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• 2005

Recently, hospital architecture has acknowledged remedial value of environment and atmosphere, which consider patient's statement of physical, spiritual, psychological and social focus, escape from the past focus of functional and rational space composition. The many research of hospital architecture just analyze elements of architectural planing which focus how to make a healing environment for patients. The purpose of this study is to abstract the design principle of architectural space composition for healing environment significance, through case study which follow up space composition. To abstract healing environment significance by space composition, each case study hospitals should be analyzed and estimated on the spatial composition elements. It is to provide the basic data for effective architectural planning of the hospital.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.837-839
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• 2003

Low spatial resolution remote sensing (RS) data (LSRD) are promising in agricultural monitoring activities due to their high temporal resolution, but under such a spatial resolution, mixing in a pixel is a common problem. In this study, a numerical experiment was conducted to explore a mixed pixel problem in agriculture using a combined RSsimulation model SWAP (Soil-Water-Atmosphere -Plant) and a Genetic Algorithm (GA) approach. Results of the experiments showed that it is highly possible to address the mixed pixel problem with LSRD.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.1007-1010
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• 2006

This study investigates the spatial structure of the total cloud liquid water content Q fields over the Northwest Pacific Ocean during winter monsoon. The distributions of Q have been estimated from the brightness temperatures of the ocean - atmosphere system $T_B(f)$, where f is frequency, measured by AQUA AMSR-E in January -March 2003. Marine strati (St) and stratocumuli (Sc) are typical for winter monsoon season. They were analysed using mainly high-frequency channel at f = 36.5 GHz, vertical polarisation. $T_B$ data were accompanied by the data on near surface wind speed, air temperature and humidity from the nearest meteorological stations. Tow one-dimensional spectra were computed for downwind and crosswind sections of Q fields. The AMSR-E antenna field of view (14-8 km) and the cloud field sizes (100-1000 km) restricted the spatial scales. The results of case study Jan 31 2003 are presented. Scale-invariant spectrum is typical. In the cases of extended St levels a spectral slope equals about -1.7, conforming to classical -5/3 of turbulence theory. For Sc cases the absolute magnitude of spectral slope is rather higher, as a rule. The value is about -2. In the case when cloud streets are presented, a strait line form of spectrum is less reliable with a slope being rather lower (about -1.4).

• 대기
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• 제19권2호
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• pp.107-125
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• 2009

Statistical downscaled surface temperature datasets by employing the cyclostationary empirical orthogonal function (CSEOF) analysis and multiple linear regression method are examined. For evaluating the efficiency of this statistical downscaling method, monthly surface temperature of the ECMWF has been downscaled into monthly temperature having a fine spatial scale of ~20km over the Korean peninsula for the 1973-2000 period. Monthly surface temperature of the ECHOG has also been downscaled into the same spatial scale data for the same period. Comparisons of temperatures between two datasets over the Korean peninsula show that annual mean temperature of the ECMWF is about $2^{\circ}C$ higher than that of the ECHOG. After applying to the statistical downscaling method, the difference of two annual mean temperatures reduces less than $1^{\circ}C$ and their spatial patterns become even close to each other. Future downscaled data shows that annual temperatures in the A1B scenario will increase by $3.5^{\circ}C$ by the late 21st century. The downscaled data are influenced by the ECHOG as well as observation data which includes effects of complicated topography and the heat island.

• 대기
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• 제23권3호
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• pp.347-356
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• 2013

The climate projection with a high spatial resolution is required for the studies on regional climate changes. The Korea Meteorological Administration (KMA) has provided downscaled RCP (Representative Concentration Pathway) scenarios over Korea with 1 km spatial resolution. If there are additional climate projections produced by dynamically downscale, the quality of impacts and vulnerability assessments of Korea would be improved with uncertainty information. This technical note intends to instruct the methods to downscale the climate projections dynamically from the Community Earth System Model (CESM) to the Weather Research and Forecast (WRF) model. In particular, here we focus on the instruction to utilize CAM2WRF, a sub-program to link output of CESM to initial and boundary condition of WRF at Linux platform. We also provide the example of the dynamically downscaled results over Korean Peninsula with 50 km spatial resolution for August, 2020. This instruction can be helpful to utilize global scale climate scenarios for studying regional climate change over Korean peninsula with further validation and uncertainty/bias analysis.

• 한국농림기상학회지
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• 제5권2호
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• pp.81-86
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• 2003

침엽수림에서 토양열 플럭스의 공간변화를 미기상 관측을 통해 조사하였다. 일평균 최대 하향단파복사(R $s_{dn}$ )와 순복사 (Rn)는 약 260W $m^{-2}$ 와 180 W $m^{-2}$ 였다. 7월 중순에서 8월 중순 사이의 일평균 토양열 플럭스는 대체로 순복사의 10% 였다. 연구기간동안 측정된 토양열 플럭스 ( $G_{6}$)와 계산된 토양열 플럭스 (G)와의 오차는 2% 이내였다. 열 저류항에 의한 최대 플럭스의 지연이 관측되었다. 이러한 열 저류항을 고려하지 않을 경우, 약 10에서 15W $m^{-2}$ 의 오차가 발생 할 수 있다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.309-312
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• 2008

The advent of high resolution products of surface wind and temperature derived by satellite data has permitted us to investigate ocean and atmosphere interaction studies in detail. Especially the Kuroshio extension region of the western North Pacific is considered to be a key area for such studies. We have constructed gridded products of surface wind/wind stress over the world ocean using satellite scatterometer (Qscat/SeaWinds), available as the Japanese Ocean Flux data sets with Use of Remote sensing Observation (J-OFURO). Using new data based on improved algorithm which have been recently delivered, we are reconstructing gridded product with higher spatial resolution. Intercomparison of this product with the previous one reveals that there are some discrepancies between them in short-period and high wind-speed ranges especially in the westerly wind region. The products are validated by not only comparisons with in-situ measurement data by mooring buoys such as TAO/TRITON in the tropical Pacific and the Kuroshio Extension Observation (KEO) buoys, but also intercomparison with numerical weather prediction model (NWPM) products (the NRA-1 and 2). Our products have much smaller mean difference in the study areas than the NWPM ones, meaning higher reliability compared with the NWPM products. Using the high resolution products together with sea surface temperature (SST) data, we examine a new type of relationship between the lower atmosphere and upper ocean in the Kuroshio Extension region. It is suggested that the spatial relation between the wind speed and SST depends upon, more or less, the surrounding oceanic condition.

• 대한원격탐사학회지
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• 제34권2_1호
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• pp.295-300
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• 2018

순복사는 지구 에너지 순환의 열원으로 사용되는 총 복사에너지의 총량으로써, 지표면에서는 수문학, 기후 연구 및 농업과 같은 분야에서 중요한 요소이다. 원격탐사를 통해 순복사를 모니터링 함으로써 열섬 현상과 도시화 경향을 파악할 수 있어 매우 중요하지만, 원격 탐사 자료만을 이용한 순복사 추정은 일반적으로 구름의 유무에따라정확도차이가발생한다.따라서본논문에서는천리안위성(Communication, Ocean and Meteorological Satellite, COMS) 및 Landsat-8위성 기반의 자료와 건물 높이 차이를 반영한 전산유체역학(Computational Fluid Dynamics, CFD)모델 자료를 이용하여 도시화가 진행 중인 은평구 뉴타운 지역에서의 고해상도 순복사를 1시간 간격으로 산출 및 모니터링을 수행하였다. 은평구 플럭스 타워에서 관측된 순복사와 비교한 결과, RMSE $54.29Wm^{-2}$, Bias $27.42Wm^{-2}$의 정확도를 보였으며, 전체적으로 지점 관측 자료와의 유사한 경향을 보였다. 또한 산출된 순복사는 강수와 같은 기상상태를 잘 나타냈으며, 공간적 분포에서 식생 및 인공물 지역에 대한 순복사의 특징을 잘 나타냈다.