HR: 0800h
AN: H21B-1332    [Abstracts]
TI: Shallow Subsurface Fluxes in Coastal Tropical Constructed Fill Areas
AU: * Minihane, M R
EM: minihane@stanford.edu
AF: Department of Civil and Environmental Engineering Stanford University, Environmental Fluid Mechanics and Hydrology 380 Panama Mall, Terman Rm M13, Stanford, CA 94305-4020 United States
AU: Freyberg, D L
EM: freyberg@stanford.edu
AF: Department of Civil and Environmental Engineering Stanford University, Environmental Fluid Mechanics and Hydrology 380 Panama Mall, Terman Rm M13, Stanford, CA 94305-4020 United States
AB: Hydrometeorologic conditions in tropical climates, such as in Southeast Asia, are characterized by high temperatures with small daily and seasonal fluctuations, high rainfall rates that vary with the regional monsoon seasons, and high evaporative demand that is comparable to average rainfall rates. There are an increasing number of coastal landfill projects in the tropics. As these constructed sites are developed, the subsurface water must be managed and protected as carefully as in other urban development areas. To date, little has been documented about variably saturated water flow in these environments. The combination of frequent rain events, strong diurnal evaporative demand, and tidal influences at coastlines makes the shallow subsurface an active and dynamic hydrologic area. This study combines field measurements of moisture content, tension, and temperature with mathematical models to explore the dynamics of infiltration, evaporation, and recharge through the vadose zone of coastal landfills in tropical climates, using a field site in eastern Singapore as a case study.
DE: 1875 Vadose zone
SC: Hydrology [H]
MN: Fall Meeting 2005