http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤진일 한국농림기상학회 2000 한국농림기상학회지 Vol.2 No.1
A topography-precipitation relationship derived from the southern part of Korean Peninsula was applied to North Korea where climate stations are few and widely separated. Two hundred and seventy seven rain gauge stations of South Korea were classified into 8 different groups depending on the slope orientation (aspect) of the region they are located. Monthly precipitation averaged over 10 year period (1986-1995) was regressed to topographical variables of the station locations. A "trend precipitation" for each gauge station was extracted from the precipitation surface interpolated from the monthly precipitation data of 24 standard stations of the Korea Meteorological Administration and used as a substitute for y-axis intercept of the regression equation. These regression models were applied to the corresponding regions of North Korea, which were identified by slope orientation, to obtain monthly precipitation surface for the aspect regions. "Trend precipitation" from the 10 year data of 27 North Korean standard stations was also used in the model calculation. Output grids for each aspect region were mosaicked to form the monthly and annual precipitation surface with a 1 km×1km resolution for the entire territory of North Korea. Spatially averaged annual precipitation of North Korea was 938 mm with the standard deviation of 246 mm.
尹進一 경희대학교 부설 식량자원개발연구소 1991 硏究論文集 Vol.12 No.-
道內 中山間地帶 農業開發 지원을 위해 필요한 氣候資料를 蒐集된 資料로부터 農業氣候指數의 하나인 蒸發散位를 계산하는 과정에 대하여 硏究하였다. 섬의 동쪽과 서쪽 中山間地帶 氣候를 대표할 수 있는 두 지점에 無人觀測所를 설치하고 퍼스컴通信 기술을 利用해 日射, 氣溫, 濕度, 風向, 風速 및 降水資料를 蒐集하였다. 1989년 6월 한달간 蒐集된 資料를 利用해 두 지점간 日氣象 特性을 分析하였으며, Penman식에 의해 蒸發散位값을 추정하였다. 상대적으로 풍부한 純輻射에너지와 南西氣流에 의한 Fo¨hn 현상에 의해 섬의 동쪽 中山間地帶가 서쪽에 비해 1~2도 가량 높은 氣溫을 유지하였다. 地溫은 두 지점간에 차이가 없었으며 최고 및 최저溫度 출현시각은 氣溫에 비해 4시간 지연되었다. 바람은 서쪽에서 강했으며 주야간 해륙풍 순환 현상도 동쪽에 비해 뚜렷하였다. 계산된 蒸發散位값은 동쪽이 서쪽에 비해 6% 높았으며 海岸地帶 추정값에 비해 30% 가량 높았다. Weather data acquisition and potential evapotranspiration (PET) calculation procedure were investigated to support the agricultural development efforts in the mid-altitude mountainous region of Cheju Island. Automated weather stations (AWS) were installed at two points representing the east and the west of the study area. A personal computer was employed to collect the near-real time weather data from AWS through the public telephone line. Hourly data were available for solar radiation, air and soil temperature, relative humidity. wind speed and direction, and precipitation. Based on the data for the month of June 1989, daily climatic features were coniparatively analyzed for the two areas and the Penman equation was used to calculate PET. Air temperature was higher by 1 to 2 degree C in the east due mainly to the higher solar radiation and partly to the Fohn effect caused by the daytime southwesterly blowing over Mt. Halla. Diurnal march of soil temperature lagged by 4 hours behind that of air temperature, and the diurnal range for l0cm subsurface soil was 3 degree C. Wind was consistently stronger and a marked sea-land breeze circulation was detected in the west. Calculated PET values were higher in the east by 6% than in the west. Overall values from the east and the west of the mid-altitude mountainous region were higher by 30% than those of the coastal region, which were estimated from the Class A Pan evaporation measured by the Korea Meteorological Service Offices.
윤진일,남재철,홍석영,김준,김광수,정유란,채남이,최태진 한국농림기상학회 2004 한국농림기상학회지 Vol.6 No.3
Evapotranspiration (ET) is a critical component of the hydrologic cycle which influences economic activities as well as the natural ecosystem. While there have been numerous studies on ET estimation for homogeneous areas using point measurements of meteorological variables, monitoring of spatial ET has not been possible at landscape - or watershed - scales. We propose a site-specific application of the land surface model, which is enabled by spatially interpolated input data at the desired resolution. Gyunggi Province of South Korea was divided into a regular grid of 10 million cells with 30m spacing and hourly temperature, humidity, wind, precipitation and solar irradiance were estimated for each grid cell by spatial interpolation of synoptic weather data. Topoclimatology models were used to accommodate effects of topography in a spatial interpolation procedure, including cold air drainage on nocturnal temperature and solar irradiance on daytime temperature. Satellite remote sensing data were used to classify the vegetation type of each grid cell, and corresponding spatial attributes including soil texture, canopy structure, and phenological features were identified. All data were fed into a standalone version of SiB2(Simple Biosphere Modell) to simulate latent heat flux at each grid cell. A computer program was written for data management in the cell - based SiB2 operation such as extracting input data for SiB2 from grid matrices and recombining the output data back to the grid format. ET estimates at selected grid cells were validated against the actual measurement of latent heat fluxes by eddy covariance measurement. We applied this system to obtain the spatial ET of the study area on a continuous basis for the 2001-2003 period. The results showed a strong feasibility of using spatial - data driven land surface models for operational monitoring of regional ET.