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Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios

Publication ,  Journal Article
Kumagai, T; Katul, GG; Saitoh, TM; Sato, Y; Manfroi, OJ; Morooka, T; Ichie, T; Kuraji, K; Suzuki, M; Porporato, A
Published in: Water Resources Research
January 1, 2004

Southeastern Asian tropical rain forests are among the most important biomes in terms of annual productivity and water cycling. How their hydrologic budgets are altered by projected shifts in precipitation is examined using a combination of field measurements, global climate model (GCM) simulation output, and a simplified hydrologic model. The simplified hydrologic model is developed with its primary forcing term being rainfall statistics. A main novelty in this analysis is that the effects of increased (or decreased) precipitation on increased (or decreased) cloud cover and hence evapotranspiration is explicitly considered. The model is validated against field measurements conducted in a tropical rain forest in Sarawak, Malaysia. It is demonstrated that the model reproduces the probability density function of soil moisture content (s), transpiration (Tr), interception (Ic), and leakage loss (Q). On the basis of this model and projected shifts in precipitation statistics by GCM the probability distribution of Ic, Q and, to a lesser extent, s varied appreciably at seasonal timescales. The probability distribution of Tr was least impacted by projected shifts in precipitation.

Duke Scholars

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

January 1, 2004

Volume

40

Issue

1

Related Subject Headings

  • Environmental Engineering
  • 4011 Environmental engineering
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience
 

Citation

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Kumagai, T., Katul, G. G., Saitoh, T. M., Sato, Y., Manfroi, O. J., Morooka, T., … Porporato, A. (2004). Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios. Water Resources Research, 40(1). https://doi.org/10.1029/2003WR002226
Kumagai, T., G. G. Katul, T. M. Saitoh, Y. Sato, O. J. Manfroi, T. Morooka, T. Ichie, K. Kuraji, M. Suzuki, and A. Porporato. “Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios.” Water Resources Research 40, no. 1 (January 1, 2004). https://doi.org/10.1029/2003WR002226.
Kumagai T, Katul GG, Saitoh TM, Sato Y, Manfroi OJ, Morooka T, et al. Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios. Water Resources Research. 2004 Jan 1;40(1).
Kumagai, T., et al. “Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios.” Water Resources Research, vol. 40, no. 1, Jan. 2004. Scopus, doi:10.1029/2003WR002226.
Kumagai T, Katul GG, Saitoh TM, Sato Y, Manfroi OJ, Morooka T, Ichie T, Kuraji K, Suzuki M, Porporato A. Water cycling in a Bornean tropical rain forest under current and projected precipitation scenarios. Water Resources Research. 2004 Jan 1;40(1).
Journal cover image

Published In

Water Resources Research

DOI

ISSN

0043-1397

Publication Date

January 1, 2004

Volume

40

Issue

1

Related Subject Headings

  • Environmental Engineering
  • 4011 Environmental engineering
  • 4005 Civil engineering
  • 3707 Hydrology
  • 0907 Environmental Engineering
  • 0905 Civil Engineering
  • 0406 Physical Geography and Environmental Geoscience