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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국기상학회 Asia-Pacific Journal of Atmospheric Sciences Asia-Pacific Journal of Atmospheric Sciences Vol.45 No.2
- 발행연도
- 2009.5
- 수록면
- 113 - 120 (8page)
이용수
초록· 키워드
Closing energy and water budgets in terrestrial ecosystems still remains as a challenge, particularly for those with heterogeneous vegetation in complex terrains. This paper presents an attempt to quantitatively estimate parts of water-level fluctuation due to evapotranspiration (ET) and earth tides, and their seasonality at the Gwangneung forest catchment, Korea. The long-term water level was monitored froma piezometer at 5-min intervals from February 2006 to July 2007. For the seasonal variation, summer and winter sub-datasets were analyzed using the power spectral analysis. Cyclic movements with frequencies of 1 cycle / 24.0±0.5 hr were extracted from the water-level monitoring data. Daily fluctuation of water levels ranged from0.070±0.015min the winter to 0.130±0.061min the summer of 2006. In winter, the water-level fluctuated on average 13.9 ㎜, of which 94% was attributed to the effect of earth tide and the remainder to ET. In summer, the fluctuation component associated with ETwas on average 25.9 ㎜(66% of the total fluctuation),which is equivalent to a daily ET of ~2.9 ㎜. When compared against the ET observed from the eddy covariance flux tower at the same site for the same periods, the ranges of seasonal ET inferred from the water-level fluctuations were virtually the same.
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목차
- Abstract
- 1. Introduction
- 2. Materials and Methods
- 3. Results & Discussion
- 4. Conclusion
- REFERENCES
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참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2009-453-018272200
