인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 저자정보
초록·키워드
Optical characteristics of fog which occurred near the Incheon International Airport (37.47 N, 126.43 E) within the period from January 2003 to December 2004 were analyzed, using satellite data of the MODIS onboard the AQUA/TERRA and a radiative transfer model (the SBDART). The difference in brightness temperature between 3.7 ㎛ and 11 ㎛ (T<SUB>3.7-11</SUB>) and the reflectance at 0.65 ㎛ (R<SUB>0.65</SUB>), used for threshold values of remotely sensing fog, were derived from the MODIS. The T<SUB>3.7-11</SUB> threshold values were significantly affected by the higher clouds above the fog layer during nighttime since the difference between fog and clear-sky was small. Also, the R<SUB>0.65</SUB> during daylight depended heavily on the solar zenith angle. Thus, in order to improve the fog algorithm from satellite data, the effects of both the clouds on T<SUB>3.7-11</SUB> and the angle on R<SUB>0.65</SUB> were proposed to be reduced with the look-up table and the angular normalization, respectively. The sensitivity experiments of the two thresholds as a function of the height, optical thickness, effective radius and phase of fog particles were performed, based on numerical simulation. The effect of the clouds on the infrared threshold was sensitive under the condition of both the Cloud Optical Thickness, COT ≤ 16 and the effective radius R<SUB>e</SUB> ≤ 8 ㎛. A distinction between fog and stratus, and the effect of the clouds and solar zenith angle on the threshold were discussed.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-ECN-0101-2009-453-016240599