Browse > Article

Spatial Variability of Soil Heat Fluxes in a Conifer Forest  

Yun-Ho Park (Korean Meteorological Administration)
Byong-Lyol Lee (Suwon Weather Station, KMA)
Kyung-Sook Cho (Korea Global Atmosphere Watch Observatory, METRI)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.5, no.2, 2003 , pp. 81-86 More about this Journal
Abstract
The spatial variability of soil heat fluxes in a conifer forest was investigated by meteorological measurement. The maximum daily averages of R $s_{dn}$ and Rn were about 260 W $m^{-2}$ and 180 W $m^{-2}$ . The daily average of G was typically 10% of net radiation during mid-July to mid-August. The measured soil heat flux of $G_{6}$ was suitable to calculate G within 2% error during the study period. A time delay in the maximum nux at a depth of 0.1 m by heat storage was observed. About 10 to 15 W $m^{-2}$ of error can occur, if it is neglected.
Keywords
spatial variability; soil heat flux; heat storage; Net radiation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kustas, W. P., H. P. John and L. H. Jerry, 2000: Variability in soil heat flux from a mesquite dune site. Agric. For. Meteorol., 103, 249-264.
2 Oke, T. R., 1987: Boundary-layer Climatology. Methuen, New York, 435 pp.
3 Korea Forest Research Institute., 1994: Kwangneung examination forest: Eutgo Mun Hwa Sa. (in Korean).
4 Mayocchi, C. L. and K. L. Bristow, 1995: Soil surface heat flux: some general questions and comments on measurements. Agric. For. Meteorol., 75, 43-50.
5 Garrat, J. R., 1992: The atmospheric boundary layer. Cambridge Univ. Press, 316p.
6 McCaughey, J. H. and W. L. Saxton, 1988: Energy balance storage terms in a mixed forest. Agric. For. Meteorol., 44, 1-18.
7 Schmid, H. P., S. B. Grimmond, F. Cropley, B. Offerle and H. B. Su, 2000: Measurements of $CO_2$and energy fluxes over a mixed hardwood forest in the mid-western United States. Agric. For. Meteorol., 103, 357-374.