Resources Contact Us Home
Method for determining an instantaneous unit hydrograph

Image Number 6 for United States Patent #6522972.

A method for producing a more accurate instantaneous unit hydrograph particularly for urban areas and for use in specifying the capacities of structures engineered to manage surface water runoff at the watershed catchment. The method uses map data verified by on-site inspections to obtain the input for the computer-performed calculation of initial probabilities, transition probabilities and mean waiting times, and subsequently the instantaneous unit hydrograph. This data includes the areas, links between streams, and slopes of various parts of the watershed.

  Recently Added Patents
Quaternary chalcogenide wafers
Solid-state image pickup element, method of manufacturing the same, and image pickup apparatus including the same
Guitar strap attachment means
Methods and apparatus for low power out-of-band communications
Synthetic refrigeration oil composition for HFC applications
Active gate drive circuit
  Randomly Featured Patents
Cord winding device for window covering
Apparatus and method for removing bearings
Hydrocarbon conversion with an attenuated superactive multimetallic catalytic composite
Assembly for facilitating inservice inspection of a reactor coolant pump rotor
Monoclonal antibodies to transforming growth factor-beta and methods of use
Hydrolytic preparation of titanium dioxide pigments
Encoding and decoding data in an image
Method and apparatus for accurately positioning a tool on a mobile machine using on-board positioning system and off-board adjustable laser reference
Method and system for accessing objects defined within an external object-oriented environment
Take-up reel leader for DLT tape drive