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  2. Drawdown (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Drawdown_(hydrology)

    In surface water hydrology and civil engineering, drawdown refers to the lowering of the surface elevation of a body of water, the water table, the piezometric surface, or the water surface of a well, as a result of the withdrawal of water. [1] In either case, drawdown is the change in hydraulic head or water level relative to the initial ...

  3. Watertable control - Wikipedia

    en.wikipedia.org/wiki/Watertable_control

    In geotechnical engineering, watertable control is the practice of controlling the height of the water table by drainage.Its main applications are in agricultural land (to improve the crop yield using agricultural drainage systems) and in cities to manage the extensive underground infrastructure that includes the foundations of large buildings, underground transit systems, and extensive ...

  4. Dewatering - Wikipedia

    en.wikipedia.org/wiki/Dewatering

    Pumps being used to dewater a spillway at Baldhill Dam. Dewatering / d iː ˈ w ɔː t ər ɪ ŋ / is the removal of water from a location. This may be done by wet classification, centrifugation, filtration, or similar solid-liquid separation processes, such as removal of residual liquid from a filter cake by a filter press as part of various industrial processes.

  5. Model-based systems engineering - Wikipedia

    en.wikipedia.org/wiki/Model-based_systems...

    The first known prominent public usage of the term "Model-Based Systems Engineering" is a book by A. Wayne Wymore with the same name. [8] The MBSE term was also commonly used among the SysML Partners consortium during the formative years of their Systems Modeling Language (SysML) open source specification project during 2003-2005, so they could distinguish SysML from its parent language UML v2 ...

  6. Model-based design - Wikipedia

    en.wikipedia.org/wiki/Model-based_design

    Model-based design (MBD) is a mathematical and visual method of addressing problems associated with designing complex control, [1] signal processing [2] and communication systems. It is used in many motion control , industrial equipment, aerospace , and automotive applications.

  7. Oregon lawmakers ask judge to ‘modify’ reservoir drawdowns ...

    www.aol.com/oregon-lawmakers-ask-judge-modify...

    A letter sent to U.S. District Court Judge Marco Hernandez last week came in the wake of deep reservoir drawdowns by the U.S. Army of Corps of Engineers, meant to help endangered salmon, that ...

  8. Aquifer test - Wikipedia

    en.wikipedia.org/wiki/Aquifer_test

    Aquifer testing is a common tool that hydrogeologists use to characterize a system of aquifers, aquitards and flow system boundaries. A slug test is a variation on the typical aquifer test where an instantaneous change (increase or decrease) is made, and the effects are observed in the same well.

  9. Hydrological model - Wikipedia

    en.wikipedia.org/wiki/Hydrological_model

    A hydrologic model is a simplification of a real-world system (e.g., surface water, soil water, wetland, groundwater, estuary) that aids in understanding, predicting, and managing water resources. Both the flow and quality of water are commonly studied using hydrologic models.