Transcript BASINS 2.0 and The Trinity River Basin

BASINS 2.0
and
The Trinity River Basin
By Jóna Finndís Jónsdóttir
Outline
Why this project?
Area of study
What is BASINS 2.0
Running NPSM
Conclusions
Lets talk about TMDL
My research project is a part of a Total Maximum Daily Loads
project on the Trinity River Basin in east Texas
BASINS 2.0 is sometimes used to view and
process data regarding TMDL projects
Since the product of my research project will be used in a
similar way as the data in BASINS, a quick inspection of the
program will give me a better overview over my research
And the study area is…
Or actually a part of the Trinity River
Basin…
First I was looking at the West Fork
Trinity River Above Bridgeport Reservoir,
segment number 812
The river network was to
complicated for the non-point source
model
My next choice was Clear Fork
Trinity River Above Lake
Weatherford, segment number 833
Better Assessment Science Integrating
Point and Nonpoint Sources
The BASINS system is basically an Arc View project with
some extra components.
It consists of
 An environmental database
 Tools for data queries and report generation
 Ability to produce input files for three models
 The models, NPSM, Qual2e and Toxiroute
 Post-processors for viewing of outputs from the models
The Database
Base Cartographic Data
 Hydrologic Unit Boundaries
Major Roads
Populated Place Locations
Urbanized Areas
State and County Boundaries
EPA Regions
Environmental Background Data
Environmental Monitoring Data
 Water Quality Monitoring Stations and Data summaries
Bacteria Monitoring Stations and Sata Summaries
Water Quality Stations and Observation Data
National Sediment Inventory Stations and Database
Listing of Fish and Wildlife Advisories
Flow Gage Sites
Weather Station Sites
Drinking Water Supply Sites
Watershed Data Stations and Database
Classified Shellfish Areas
Ecoregions
State soil and Geographic Database
Reach file 1
Reach file 3
Digital Elevation Model
Land Use and Land Cover
Point Source/Loading Data
 Permit Compliance System, Sites & Computed Annual
Loadings
Industrial Facilities Discharge Sites & Pollutant Release data
Superfund National Priority List Site
Resource Conservation & Recovery Information System Sites
Minerals Availability System /Mineral Industry Location
System
Data Queries and Report Generation
Target performs a broad-based assessment on the entire project area
Assess is used to assess data on an individual watershed or a limited set of watersheds
Data mining generates dynamic links between tables and maps for individual water quality
stations or permitted facility discharges
The Stream Water Quality Models
Two simple one-dimensional, steady-state models are are within BASINS, QUAL2E and TOXIROUTE
BASINS creates input files for these models and has an built-in visualization for their output files.
QUAL2E uses complex algorithms to simulate biochemical oxygen demand, dissolved
oxygen, temperature, conservative and non-conservative substances
Does not run in Windows NT
TOXIROUTE calculates final and average concentration of general water quality
constituents based on a dilution and first-order decay algorithm
Will not be included in next edition of BASINS
Nonpoint Source Model
NPSM
NPSM is capable of integrating both:
 Nonpoint source runoff and associated pollutant loadings
 Point source discharges
BASINS can create an input file for the model, which describes the attributes of a selected watershed
The input file describes:
The river reach network: length, slope and flow/water level curves (from Rf1)
The land use of watersheds
Point source discharges
A separate data file includes weather data from certain weather stations
In the NPSM-postprocessor, measured data can be compared to the output from the model
Running NPSM
Running NPSM (continued)
Output from NPSM
USGS Flow Gage Station
&
Surface Water Quality Station
Conclusions
The BASINS system is in most ways interesting and easy to use
Except for the models
The fact that QUAL2E is not compatible with Windows NT should be presented
in a more obvious way than it is (one sentence in the users guide)
NPSM should give the user some error messages or instructions when the model
can not run due to some mistakes in the input
Questions?