QUAL2E MODEL DOWNLOAD

Bruce Bartell and Mr. Reach Order or Number Dispersion Constant a, coefficient for velocity b, exponent for velocity c, coefficient for depth d, exponent for depth Mannings "n" for reach if not specified, the program default value is 0. For the factorial design option, the user must specify the number of input variables in the design. TenEch Environmental Consultants, Inc. The options arise from combinations of situations regarding two factors:

Uploader:	Tushicage
Date Added:	5 July 2015
File Size:	28.79 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	72304
Price:	Free* [*Free Regsitration Required]

Local climatological data are required for the simulation of algae and temperature. There are seven different types of computational elements: This option incorporates an exponential function to model the effect of photoinhibition on the algal growth rate: Estimates of output qhal2e by monte carlo simulation are not affected by model nonlinearities.

The algal simulation requires values of net solar radiation. Data Type 13 - Downstream Boundary - 1 This data card supplies the constituent concentrations at the downstream boundary of qua2e system.

Subroutine OMATCH retrieves, purges, and stores on disk file the values of the appropriate output variables from the base case simulation.

The functional representation of these terms has been defined by Water Resources Engineers, Inc. Elder's expression, however, seems adequate in one-dimensional situations where the channel is not too wide. Although it is primarily dependent on air temperature and humidity, it can also be affected by ozone, carbon dioxide, and possibly modrl materials in the atmosphere.

Pi CE IT 1: Subsequent lines provide the time variable basin average climatology data, chronologically ordered at 3-hour intervals. Progress Report on Contract No. A summary of the calibrated inputs and their variance estimates for the uncertainty analysis is shown in Table C-l.

It is recommended that users work only with ultimate BOD unless they have detailed knowledge of the river water and point source BOD kinetics.

The variance of each input variable can be specified uniquely, but as stated in subsection 1, that variance applies equally to all values of the variable in the basin.

Dynamic kodel where algae is being simulated, and temperature is not. If a match between the code and characters occurs, then the data are accepted as supplied on the card by the user.

Options mode, and 4 use the solar radiation value in Data Type 1A for the algae simulation. QUAL2K is an updated version of QUAL2E see below with improvements in model segmentation, forms of carbonaceous BOD evaluated, particulate organic matter simulation, anoxia and denitrification modeling, sediment-water dissolved oxygen and nutrient fluxes, explicit simulation of attached bottom algae, light extinction calculation, enhanced pH simulation, and pathogen removal functions.

Water Quality Models

Element types 6 and 7 represent inputs waste loads and unsimulated tributaries and water withdrawals, respectively. For sensitivity analysis, it saves the complete output from the base case simulation in the file BASE. Light intensity varies with depth according to Beer's law: This information is supplied in two data fields per card; columnsand These results show a similar, but somewhat modified pattern as the sensitivity coefficients.

An evaluation of the input factors that contribute most to the level of uncertainty will lead modelers in the direction of most efficient data gathering and research.

When reach variable tempera- ture simulation inputs are used, a detailed temperature and heat balance qqual2e is provided with the QUAL2E final output.

For example, if the user wishes to perform uncertainty analysis on the CBOD rate coefficient, or the point load flows, then all input values over the entire basin of the rate coefficient and flows are perturbed. This option also will allow the user to add a new reach to the system; for example, taking a tributary that was initially modeled as a point source and changing it to a modeled reach or reaches in the basin. It determines the total number of sensitivity simulations to be performed as well as the levels of all variables to be perturbed in each simulation.

QUAL2EU - Enhanced Stream Water Quality Model - Scientific Software Group

If either the phosphorus cycle or the nitrogen cycle are not being simulated, the model presumes they will not limit algal growth. Light Function Option 1. Data type 6 is used to constrain the list of output variables for which uncertainty results will be computed. It is these numbers that must qual2d arranged in ascending order. The major sources of oxygen, in addition to atmospheric reaeration, are the oxygen produced by photosynthesis and the oxygen contained in the incoming flow.

The omdel dispersion is generally used for transport associated with spatially averaged velocity variation, as opposed to "diffusion," which is reserved for transport that is associated primarily with time-averaged velocity fluctuations.