Prediction of Occurrence and Runoff Analysis of Debris Flow
A debris flow will occur on a slope when the rainfall exceeds a certain value determined by the hydraulic, geological and topographic properties of the slope. To estimate this critical...
Operation of a Real-Time Warning System for Debris Flows in the San Francisco Bay Area, California
The United States Geological Survey (USGS) and the National Weather Service (NWS) have developed an operational warning system for debris flows during severe rainstorms in the San Francisco...
Rainfall Depth-Duration-Frequency Analysis for Major Cities in Taiwan
The annual series of extreme rainfall amounts for various durations are compiled. The statistics such as mean, standard deviation, coefficient of variation, coefficient of skewness, and...
Keeping Cables Calm
Cable vibration and corrosion are potential problems relating to cable-stayed bridges. Nonetheless, owners think their structural elegance is worth it, and increasingly longer cable-stayed...
Design of Miel II?A High RCC Dam
Miel II Dam is a 141 m high RCC structure designed for the tropical mountains of central Columbia. Interesting features are its height (considerably higher than any existing RCC Dam),...
Assessing the Leaching Potential of Herbicides at the Ohio MSEA
The GLEAMS model was used to assess the potential for herbicide leaching at the Ohio MSEA. Input data, typical of the Ohio MSEA, was used in conjunction with precipitation data for the...
Calculation of Runoff from Rainfall Using NURP Data
Peak runoff flows and flood hydrographs are important elements in the design of drainage and flood-protection structures. The validity of methods for predicting peak flow from rainfall...
Importance of the Tropical Rainfall Measuring Mission (TRMM) Satellite to Hydrological Investigations
Rainfall over the global tropics is crucial to the global hydrological cycle and to water resources in most developing countries. Its magnitude and variations are presently poorly known....
Appropriate Technology for Flood Warnings
Computers can help protect cities and other developed areas by enhancing flood warning systems, but smaller communities may not be able to take advantage of their sophistication. The Corps...
The Present Status of Precipitation Enhancement by Cloud Seeding
Atmospheric water in the form of precipitation, is one of the primary sources of fresh water in the world. However, a large amount of water present in clouds never gets transformed into...
Streamflow Forecasting Using Trainable Neural Networks
In this investigation the practicality of applying a backpropagation neural network to modeling watershed response characteristics is examined. Two separate tests were performed. One test...
Hydrologic Investigation of the April, 1983 Flooding in New Orleans, Louisiana
During the rainstorm of April 6-7, 1983, a shell ramp was constructed over State Highway 406, closing the relatively shallow depression formed by the roadway passing over the levee which...
A Frequency Surface for Rainfall Intensity and Duration
A technique for developing rainfall intensity-duration-frequency surface is presented. With the aid of the Box-Cox power transformation raw data is transformed into a jointly near normally...
Small-Scale Meteorology of Freezing Precipitation
Freezing rain and glazing are extremely disruptive to transportation, communication and power transmission. Local variations in the occurrence of freezing rain may be difficult to forecast....
Real Time Forecasting at a Major Flood Control Project
Using data from a network of real time rain and stream gages, Alabama Power computes inflows in a deterministic streamflow model and adjusts outflows hourly to achieve optimum flood control...
Evaluation of Intensity-Duration-Frequency Curves by Point Precipitation Models
In this work an alternative approach to estimate the Intensity-Duration-Frequency curves is used. This approach which uses point precipitation models recently proposed in the literature...
NEXRAD Input to Real-Time Reservoir Regulation
The Corps of Engineers has a need for radar information to enhance rain gauge measurements in determining average rainfall over a particular basin for hydrological forecast models used...
Utilization of Weather Radar for Hydrologic Forecasting
New technologies to collect, analyze, store, retrieve and display hydrologic data offer significant improvements to conventional methodologies used for predicting hydrologic events. Computer...
Analysis of 1989 Floods in Harris County, Texas
On May 17 and 18, 1989, a severe thunderstorm stalled over Harris County, Texas, producing over fourteen inches of rain in a twenty-one hour period. Slightly more than one month later...
Uncertainty in Urban Hydrologic Modeling
Uncertainty is pervasive in hydrologic modeling. Uncertainty is present in the formulation of the physical situation to be modeled, in the form of the model to be used, in the boundary...
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