World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Coupling a Groundwater Model with a Land Surface Model to Improve Water and Energy Cycle Simulation : Volume 9, Issue 9 (27/09/2012)

By Tian, W.

Click here to view

Book Id: WPLBN0004013106
Format Type: PDF Article :
File Size: Pages 46
Reproduction Date: 2015

Title: Coupling a Groundwater Model with a Land Surface Model to Improve Water and Energy Cycle Simulation : Volume 9, Issue 9 (27/09/2012)  
Author: Tian, W.
Volume: Vol. 9, Issue 9
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Wang, X., Cheng, G., Hu, B. X., Tian, W., & Li, X. (2012). Coupling a Groundwater Model with a Land Surface Model to Improve Water and Energy Cycle Simulation : Volume 9, Issue 9 (27/09/2012). Retrieved from http://hawaiilibrary.net/


Description
Description: Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China. Water and energy cycles interact, making these two processes closely related. Land surface models (LSMs) can describe the water and energy cycles on the land surface, but their description of the subsurface water processes is oversimplified, and lateral groundwater flow is ignored. Groundwater models (GWMs) describe the dynamic movement of the subsurface water well, but they cannot depict the physical mechanisms of the evapotranspiration (ET) process in detail. In this study, a coupled model of groundwater flow with a simple biosphere (GWSiB) is developed based on the full coupling of a typical land surface model (SiB2) and a three-dimensional variably saturated groundwater model (AquiferFlow). In this coupled model, the infiltration, ET and energy transfer are simulated by SiB2 using the soil moisture results from the groundwater flow model. The infiltration and ET results are applied iteratively to drive the groundwater flow model. After the coupled model is built, a sensitivity test is first performed, and the effect of the groundwater depth and the hydraulic conductivity parameters on the ET are analyzed. The coupled model is then validated using measurements from two stations located in shallow and deep groundwater depth zones. Finally, the coupled model is applied to data from the middle reaches of the Heihe River basin in the northwest of China to test the regional simulation capabilities of the model.

Summary
Coupling a groundwater model with a land surface model to improve water and energy cycle simulation

Excerpt
Gardner, W. R. and Fireman, M.: Laboratory studies of evaporation from soil columns in the presence of a water table, Soil Sci., 85, 244–249, 1958.; Baker, I., Denning, A. S., Hanan, N., Prihodko, L., Uliasz, M., Vidale, P. L., Davis, K., and Bakwin, P.: Simulated and observed fluxes of sensible and latent heat and CO2 at the WLEF-TV tower using SiB2.5, Glob. Change Biol., 9, 1262–1277, 2003.; Clapp, R. B. and Hornberger, G. M.: Empirical equations for some soil hydraulic properties, Water Resour. Res., 14, 601–604, doi:10.1029/WR014i004p00601, 1978.; Colello, G. D., Grivet, C., Sellers, P. J., and Berry, J. A.: Modeling of energy, water, and CO2 flux in a temperate grassland ecosystem with SiB2: May–October 1987, J. Atmos. Sci., 55, 1141–1169, 1998.; Cosby, B. J., Hornberger, G. M., Clapp, R. B., and Ginn, T. R.: A statistical exploration of the relationships of soil-moisture characteristics to the physical-properties of soils, Water Resour. Res., 20, 682–690, 1984.; Dai, Y., Zeng, X., Dickinson, R. E., Baker, I., Bonan, G. B., Bosilovich, M. G., Denning, A. S., Dirmeyer, P. A., Houser, P. R., Niu, G., Oleson, K. W., Schlosser, C. A., and Yang, Z.-L.: The common land model, B. Am. Meteorol. Soc., 84, 1013–1023, doi:10.1175/bams-84-8-1013, 2003.; Ding, H.-W., Xu, D.-L., Zhao, Y.-P., and Yang, J.-J.: Dynamic characteristic and forecast of spring water in the middle reaches of Heihe River trunk stream area in Gansu Province, Arid Land Geogr., 32, 726–732, 2009 (in Chinese).; Fan, Y., Miguez-Macho, G., Weaver, C. P., Walko, R., and Robock, A.: Incorporating water table dynamics in climate modeling: 1. Water table observations and equilibrium water table simulations, J. Geophys. Res.-Atmos., 112, D10125, doi:10.1029/2006jd008111, 2007.; Gao, Z. Q., Chae, N., Kim, J., Hong, J. Y., Choi, T., and Lee, H.: Modeling of surface energy partitioning, surface temperature, and soil wetness in the Tibetan prairie using the Simple Biosphere Model 2 (SiB2), J. Geophys. Res.-Atmos., 109, D06102, doi:10.1029/2003jd004089, 2004.; Gedney, N. and Cox, P. M.: The sensitivity of global climate model simulations to the representation of soil moisture heterogeneity, J. Hydrometeorol., 4, 1265–1275, doi:2.0.co;2>10.1175/1525-7541(2003)004\textless1265:tsogcm\textgreater2.0.co;2, 2003.; Gutowski Jr., W. J., Vörösmarty, C. J., Person, M., Ötles, Z., Fekete, B., and York, J.: A Coupled Land-Atmosphere Simulation Program (CLASP): calibration and validation, J. Geophys. Res., 107, 4283, doi:10.1029/2001jd000392, 2002.; Holt, T. R., Niyogi, D., Chen, F., Manning, K., LeMone, M. A., and Qureshi, A.: Effect of land-atmosphere interactions on the IHOP 24–25 May 2002 convection c

 

Click To View

Additional Books


  • The Scale of Typhoon Rusa : Volume 3, Is... (by )
  • Effect of Climate Change and Variability... (by )
  • Modeling Postfire Water Erosion Mitigati... (by )
  • McMaster Mesonet Soil Moisture Dataset: ... (by )
  • Technical Note: Method of Morris Effecti... (by )
  • A Statistical Analysis of Insurance Dama... (by )
  • The Effect of Training Image and Seconda... (by )
  • Comparison of Three Stream Tube Models P... (by )
  • A Flume Experiment on the Effect of Cons... (by )
  • Comparison of Four Models Simulating Pho... (by )
  • Uncertainties in Rainfall Retrievals fro... (by )
  • Translating Environmental Xenobiotic Fat... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.