Abstract The hydrodynamic model is essential for building a water quality rivers, lakes, estuaries, and other systems. Most software, such as HEC-RAS, can perform complex surface body limitations to represent the corresponding area. In contrast, models, like WASP, simulate wide range of contaminants in multidimensional geometry reservoirs. Still, it requires flow information from separate model...

This paper examines how water quality trading interacts with nonpoint-source abatement cost sharing (e.g., as currently practiced by the National Resource Conservation Service through its Environmental Quality Incentives Program (EQIP)) to promote the participation of nonpoint sources in a water quality market; participation that has thus far been noticeably lacking nationwide. As such, an idea...

in this article, finite element method and ale formulation were used to numerically simulate impact of low-velocity specific projectiles with water surface. for the simulation, ls-dyna finite element code was used. material models which were used to express behavior of air and water included null material model. for the projectile, plastic-kinematics material model was applied. mie-gruneisen eq...

We present Hubble Space Telescope (HST) transit observations of the Hot-Jupiter WASP-79 b acquired with Imaging Spectrograph (STIS) in near ultraviolet (NUV). Two observations, part PanCET program, are used to obtain transmission spectra planet between 2280 and 3070 Å. correct for systematic effects raw data using jitter engineering parameters polynomial modelling fit white light curves two tra...

the present study has been conducted to determine the surface water quality of urban area in savar, dhaka, bangladesh by determining some water quality parameters (transparency, temperature, ph, ec, eh, do, tss, tds, ts, bod5, cod, toc, cl-, br-, so4-2, no3-, no2-, po4-3, tp, hco3- and total alkalinity) as well as the status of phytoplankton’s community in the water from two lakes (tiger lake a...

water quality trading is a new approach in pollution control which satisfies water quality standards suggesting minimum cost solutions. this method uses tradable discharge permits based on pollution transfer coefficient in a river. this paper tries to establish a water quality trading program in a river basin according to transfer coefficients between pollution sources and evaluate cost effecti...