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Comparison of Cooling Lake Mathematical Models for Mount Storm Lake
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Aquatic Science and Environmental Engineering, MIT, Dept. of Civil Engineering, 1990-03)
Mt. Storm Lake is an impoundment of the Stony River that provides cooling for the three-unit electric generating station which is owned by Virginia Power. The lake is relatively deep and narrow with a submerged intake and ...
A Distributed, Physically-based, Rainfall-runoff Model Incorporating Topography for Real-time Flood Forecasting
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990-10)
We present a distributed, physically-based model of runoff generation in a catchment, for operational use in flood forecasting. The model accounts for both the infiltration-excess and saturation-excess mechanisms of runoff ...
Simulation of Observed Topography Using a Physically-based Basin Evolution Model
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resources, Dept. of Civil Engineering, School of Engineering, Massachusetts Institute of Technology, 1994-10)
This work presents a model for basin evolution and a procedure for estimating the parameters of this model to reproduce a given topography. The model is calibrated based on three measures: the slope-area relationship, the ...
The Implementation and Validation of Improved Landsurface Hydrology in an Atmospheric General Circulation Model
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Dept. of Civil Engineering, Massachusetts Institute of Technology, 1991-10)
New landsurface hydrological parameterizations are implemented into the NASA Goddard Institute for Space Studies (GISS) General Circulation Model (GCM). These parameterizations are: 1) runoff and evapotranspiration functions ...
A Test of Ecological Optimality for Semiarid Vegetation
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering, 1992-05)
Three ecological optimality hypotheses (Eagleson, 1978 and 1982) which have utility in parameter reduction and estimation in a climate-soil-vegetation water balance model are reviewed and tested. The first hypothesis ...
Hydraulic Model Study of Seawater Purging for the Boston Wastewater Outfall
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrodynamics and Coastal Engineering, MIT, Dept. of Civil Engineering, 1990-04)
A 1:83 hydraulic scale model was built to study the mechanism of seawater purging in the tunneled outfall that will convey effluent from MWRA's Secondary Treatment Plant on Deer Is. out into Massachusetts Bay. Purging ...
Chemically Enhanced Wastewater Treatment
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Aquatic Science and Environmental Engineering, Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990-09)
Many municipalities are currently under court order to provide secondary-level treatment to their wastewater. Since federal funding is no longer available to build the necessary facilities, the burden of paying for secondary ...
Climatology of Station Storm Rainfall in the Continental United States: Parameters of the Bartlett-Lewis and Poisson Rectangular Pulses Models
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Dept. of Civil Engineering, Massachusetts Institute of Technology, 1992-05)
The parameters of two stochastic models of point rainfall, the Bartlett-Lewis model and the Poisson rectangular pulses model, are estimated for each month of the year from the historical records of hourly precipitation at ...
A Channel Network Evolution Model with Subsurface Saturation Mechanism and Analysis of the Chaotic Behavior of the Model
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering, 1990-09)
Atmospheric Water Vapor Transport: Estimation of Continental Precipitation Recycling and Parameterization of a Simple Climate Model
(Cambridge, Mass. : Ralph M. Parsons Laboratory, Hydrology and Water Resource Systems, Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991-07)
The advective transport of atmospheric water vapor and its role in global hydrology and the water balance of continental regions are discussed and explored. The data set consists of ten years of global wind and humidity ...