Instream flow needs (IFN) assessment studies are performed to provide guidelines for stream water management and to assess the impacts of different water projects such as weirs, dams and stream diversions on the available fish habitat. The physical habitat simulation is one of the IFN assessment methods and also a powerful tool in management of river ecosystem that has not become a common metho...

Environmental Flow Requirement (EFR) is defined as the flow that is necessary to ensure the existence of habitats in water resources systems. EFR is defined in rivers as flow index commonly. Tennant method is the most popular hydrological method in rivers and based on the historic flow data. The most common method of hydraulic rating method is the wetted perimeter method. Habitat simulation tec...

This paper describes a dynamic simulation of a space habitat. The simulation is configurable and controllable via external programs. Several groups have been using the simulation to study the impact of artificial intelligence tools on space habitat design and control. We outline some of the AI challenges and invite the AI community to use our simulation to further NASA’s exploration goals.

Habitat simulation models heavily rely on monitoring data, which can have serious effects on the success of a physical habitat simulation. However, if data monitored in a study reach are not available or insufficient, then data from neighboring streams are commonly used. The problem is that the impact of using data from neighboring streams has rarely been studied before. Motivated by this, we r...

Simulations allow for the testing of different system configurations before hardware is built. It is important that such simulations are dynamic and that they integrate all major subsystems and activities. This paper describes a specific habitat simulation being built at NASA Johnson Space Center. It is a discrete-event simulation that is dynamic and stochastic. It simulates all major subsystem...

A forest simulation model (called EDEN) of eucalypt dynamics in southeastern Australia is presented to predict habitat quality for arboreal marsupials. The model is presented as a tool for testing alternative hypotheses of forest management in the study area, EDEN uses a forest gap simulation (IABOWA/FORET type) model as a pattern generator of habitat in different landscape positions and under ...