Date post: | 14-Jan-2017 |
Category: |
Engineering |
Upload: | dirk-kassenaar-msc-peng |
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SiteFX Environmental Data Management System
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Sitefx GW Database ► Database Management system with:
Data entry, sample tracking, and scheduling
Sample program design and reconciliation
Data standardization (analytical chemical names and units)
Data validation (including range checking) and data criteria screening
Reporting and advanced time-series graphing
Parametric and non-parametric statistics and trend analysis
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VIEWLOG Hydrogeologic
Modelling System
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VIEWLOG Borehole GIS ► VIEWLOG provides integrated data management,
visualization, analysis and modelling tools
GIS, with intelligent, geo-science data objects
Not just display, but meaningful data interaction
Scalable interpretation tools, from a single fracture to an entire watershed
Open, flexible, database design, with dynamic interaction with any table or query
► Over 700 users worldwide
Well Name: 34C
Elevation: 192.939 Reference: top of casing
Metres Stratigraphy
Sty
olit
es
BP
F
Ve
rt.
Fra
ct.
Core
Bre
ak Dip
(degrees)20 50
Borehole Dia.
(mm)70 90
Temp
(Deg C.)10.3 10.7
Gamma
(cps)0 120
Cond.
(mS/m)0 1
16 in Res
(Ohm-m)0 10000
52 in Res
(Ohm-m)0 10000
T - 0.5 m
(m^2/s)1E-11 0.1
T - 2m
(m^2/s)1E-11 0.1
190
180
170
160
150
Overburden
Eramosa
Vinemount Unit 2
Vinemount Unit 1
Goat Island(Marker Bed)
Goat Island
Gasport
DecewRochester
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VIEWLOG WebServer ► VIEWLOG Webserver provides data access for a
wide range of users
Emphasis on ease of use
► On-line functions include:
Interactive mapping
Color contouring
Borehole logs
2-point cross sections
Basic query select functions
Time-series graphing
US Geologic Survey Web Site built using VIEWLOG/Webserver
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VL-GSFLOW Integrated GW/SW Modelling System
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VL-GSFLOW
► GSFLOW: an open-source, fully-integrated Surface Water and Groundwater Modelling system
Surface Water model based on PRMS
Groundwater model based on MODFLOW-NWT
► Key VIEWLOG functions include:
Pre- and Port Processor for creating GSFLOW input files and reading GSFLOW outputs
Time series analysis tools
Gridded data animation tools
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GSFLOW is a combination of two USGS codes: MODFLOW-NWT and PRMS
PRMS handles climate and soil water processes MODFLOW simulates GW flow, unsaturated flow (UZF),
streamflow and lakes (SFR2/LAK3)
GSFLOW Processes
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VL-GSFLOW Total Flow Routing
► GSFLOW simulates total flow in the streams, including runoff and baseflow discharge
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VL-GSFLOW Water Level Animations
► VL-GSFLOW provides full animation and hydrograph analysis tools
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VL-GSFLOW Overland Flow
► GSFLOW simulates both overland flow and interflow
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Soil Zone Storage and Cascade
► GSFLOW can simulate the storage and 3D movement of soil zone water using a cascading inter-cell network
Till uplands
Flow accumulates in swales
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Storage and 3D movement of water in the Soil Zone
► Soil zone moisture content
Beach Deposits
Till Upland - Till uplands drain both vertically and downslope - Lateral drainage to the beach deposits from the till uplands enhances recharge - Soil zone storage helps supply rate limited GW recharge to the lower layers
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Soil Zone Drainage (GW Recharge) ► When moisture is available (winter months) there is a near constant, but rate
limited, drainage from the soil zone Beach Deposits Till Upland
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VL-GSFLOW GW Recharge
► GSFLOW provides ground water recharge estimates on a daily basis
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GW Discharge to the Soil Zone (Daily)
Daily GW discharge to soil zone
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Time-varying GW Feedback
► The “contributing area” that generates true runoff depends on the time-varying position of the water table
► Example: Dunnian process response area varies seasonally between 5 and 25% of the study area
► Runoff occurs, but it is a groundwater dependent process!
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Water Table Fluctuation across Layers ► Water Table rises and falls through multiple thin, variably saturated, layers
Highly variable response to precipitation events
► GSFLOW NWT Solver – no dry cell problems!
Water Table
GW Discharge
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MODFLOW-NWT stable even when modelling steep gradients Shows daily, seasonal, and year-to-year response in heads
Limestone Creek
Milton Outlier
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Simulated Stage in Reservoirs
OBSERVED PREDICTED
Kelso Lake
Hilton Falls
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Simulated Heads in Wells
OBSERVED PREDICTED
PGMN Well W00008
Quarry Well BH-112
Mohawk Raceway Well – Opsteen Farm
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Simulated Heads in Wellfield Monitors
OBSERVED PREDICTED
Campbellville – MW2/05B
Kelso TW3/67
Kelso TW4/67
Kelso wells out of phase with normal seasonal response. Shows influence of high leakage from lake at summer stage
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Wellfield response to Reservoir levels
Limestone Creek
Milton Outlier