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http://dx.doi.org/10.3741/JKWRA.2009.42.6.433

The Stochastic Behavior of Soil Water and the Impact of Climate Change on Soil Water  

Han, Su-Hee (Dept. of Environmental System Engrg., Pukyong National Univ.)
Ahn, Jae-Hyun (Dept. of Civil Engrg., Seokyeong Univ.)
Kim, Sang-Dan (Dept. of Environmental System Engrg., Pukyong National Univ.)
Publication Information
Journal of Korea Water Resources Association / v.42, no.6, 2009 , pp. 433-443 More about this Journal
Abstract
For the better understanding of the temporal characteristics of soil water, this study is to suggest a stochastic soil water model and to apply it for impact assessment of climate change. The loss function is divided into 3 stages for more specified comprehension of the probabilistic behavior of soil water, and especially, the soil water model considering the stochastic characteristics of precipitation is developed in order to consider the variation of climatic factors. The simulation result of soil water model confirms that the proposed soil water model can re-generate the observation properly, and it also proves that the soil water behaves with consistent cycle based on the precipitation pattern. Moreover, with the simulation results with a climate change scenario, it can be predicted that the future soil water will have higher variations than present soil water.
Keywords
Climate change; Cumulant expansion theory; Fokker-Planck equation; Soil water;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Eagleson, P. (1978). 'Climate, soil and vegetation: 1. Introduction to water balance dynamics.' Water Resour. Res., Vol. 14, No. 5, pp. 705-712   DOI
2 Gardner, W.R. (1960). 'Dynamic aspects of water availability of plants.' Soil Sc., Vol. 89, No. 2, pp. 63-73   DOI
3 IPCC, (2001) Climate Change 2001: The Scientific Basis. J.T. Houghton et al. (eds.), Cambridge University Press. 881 pages
4 Kavvas, M.L. (2003). 'Nonlinear hydrologic processes: Conservation equation for determining their means and probability distribution.' J. of Hydrol. Eng. ASCE, Vol. 8, No. 2, pp. 44-53   DOI   ScienceOn
5 Kim, S., Han, S., and Kavvas M.L. (2008). 'Analytical derivation of steady-state soil water probability density function coupled with simple stochastic point rainfall model.' ASCE J. Hydrol. Eng., Vol. 13, No. 11, pp. 1069-1077   DOI   ScienceOn
6 Kubo, R. (1963). 'Stochastic Liouville equation.' Journal of Mathematical Physics, Vol. 4, pp. 174-183   DOI
7 Nash, J.E., and Sutcliffe, J.V. (1970). 'River flow forecasting through conceptual models part I- A discussion of principles.' Jour. of Hydrology, Vol. 10, No. 3, pp. 282-290   DOI   ScienceOn
8 Njoku, E., and Entekhabi, D. (1996). 'Passive microwave remote sensing of soil moisture.' Journal of Hydrology, Vol. 184, No. 1-2, pp. 101-129   DOI   ScienceOn
9 Porporato, A., Daly, E., and Rodriguez-Iturbe, I. (2004). 'Soil water balance and ecosystem response to climate change.' Am. Nat., Vol. 164, No. 5, pp. 625-633   DOI   ScienceOn
10 Rodriguez-Iturbe, I., and Porporate, A. (2004). Ecohydrology of water-controlled ecosystems: soil moisture and plant dynamics. Cambridge Univ. Press. 442 pages
11 Jackson T.J., and Le Vine, D.E. (1996). 'Mapping surface soil moisture using an aircraft-based passive microwave instrument: algorithm and example.' Journal of Hydrology, Vol. 184, No. 1-2, pp. 85-99   DOI   ScienceOn
12 Rodriguez_Iturbe, I., Porporato, A., Ridolfi, L., Islam, V., and Cox, D. (1999). 'Probabilistic modeling of water balance at a point: the role of climate, soil and vegetation.' Proc. R. Soc. Ser. A, Vol. 455, No. 1990, pp. 3789-3805   DOI   ScienceOn
13 Van Kampen, N.G. (1981). Stochastic processes in physics and chemistry. Elsevier, North-Holland, Amsterdam
14 Yoo, C., and Kim, S. (2004). 'EOF analysis of surface soil moisture field variability.' Advances in Water Resources, Vol. 27, No. 8, pp. 831-842   DOI   ScienceOn
15 Yoo, C, Kim, S., and Kim, T. W. (2006). 'Assessment of drought vulnerability based on the soil moisture PDF.' Stochastic Environmental Research and Risk Assessment, Vol. 21, No. 2, pp. 131-141   DOI
16 Chang, J.S., and Cooper, G. (1970). 'A practical difference scheme for Fokker-Planck equations.' Journal of Computational Physics, Vol. 6, No. 1, pp. 1-16   DOI   ScienceOn
17 기상청, http://www.kma.go.kr/
18 농업기상정보시스템, http://weather.rda.go.kr/
19 한수희, 김상단 (2008). '토양수분과 식생의 물 압박에 대한 생태수문학적 해석 : 추계학적 모형의 유도와적용을 중심으로.' 수질보전 한국물환경학회지, 한국물환경학회, 제24권 1호, pp. 99-106
20 Rodriguez-Iturbe, I., Porporato, A., Laio, F., and Ridolfi, L. (2001). 'Plants in water-controlled ecosystems: Active role in hydrologic processes and response to water stress. I: scope and general outline.' Adv. Water Resour., Vol. 24, No. 7, pp. 697-705   DOI   ScienceOn
21 Laio, F., Porporato, A., Ridolfi, L., and Rodriguez-Iturbe, I. (2001). 'Plants in watercontrolled ecosystems: Active role in hydrologic processes and response to water stress. II: Probabilistic soil moisture dynamics.' Advances in Water Resources, Vol. 24, No. 7, pp. 707-723   DOI   ScienceOn