WATER Measurement Workshop 2008

Transcription

1 ALBERTA ENVIRONMENT WATER MANAGEMENT OPERATIONS LETHBRIDGE AREA WATER Measurement Workshop 2008 PRESENTED BY: Dennis Matis Oldman River Basin Water Operations Specialist

2 AENV is responsible for managing water resources in the province Water Management Operation (WMO) operates and maintains the provincial infrastructure

3 The provincial water management infrastructure Valued at $4.7 billion of which 75% is in Southern Region Annual operation and maintenance budget is about $3 million

4 Water Management Clients/Uses: Irrigated agriculture SMRID/RID/TID, MVLA, LNID, WID, EID, RID, Private Aquatic and riparian environment (IFNs) Towns, villages, industrial users Recreational and wildlife facilities Hydroelectric power generation Apportionment with Saskatchewan

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6 WMO Oldman BASIN Operations Team Oldman Operations Team Leader: Terrence Lazarus Water Operations Specialist: Dennis Matis Ft. Macleod Operations Team: John Hawryluk Operations Supervisor Raymond Conway Operations Technologist Bob Frank Operations Technologist Oldman Dam Operations Team: Piet Oosterlee Team Leader Robert Plant Operations Supervisor Scott Gerber Operations Technologist Trevor Curran -- Operations Technologist St. Mary Dam Operations Team: Lawrence Wegwitz Team Leader Tom Scott Operations Supervisor Paul Conrad Operations Technologist Clint Hillmer - Operations Technologist Don McCorriston - Operations Technologist

7 Background: Forecasting Process Data Gathering & Processing Data Analysis: Information Dissemination Note Data Collection expertise provided by the Data Management Group in the Edmonton Office

8 Use of Real-Time Hydrological Data OpsModel Daily\Weekly Projections Flood Forecast Water Supply Forecast Reservoir Regulations Irrigation Water Management Ice Jam Monitoring Water Quality Monitoring Low Flow Management Fish Rule Curve (IFN) Inter-Provincial Apportionment Recreational Planning

9 Background: Gauging Network for Model Input Real-Time Stream Gauges in Alberta Approximately 380 stations SCADA Network Of these stations, over 200 are in the SSRB, which are polled daily to assist in making water management adjustments

10 Background contd... Snow Data Provides Basis for Forecast Modeling TWIN LAKES SNOW PILLOWS Saskatchewan North PADDLE RIVER HEADWATERS River 12 MOUNTAIN SITES ER Edmonton CAMROSE River Lloydminster 3 PLAINS AREA SITES Battle LIMESTONE Red Deer Red STETTLER PROVOST USES: SKOKI MOUNTAIN BANFF SUNSHINE VILLAGE Calgary Deer River LITTLE ELBOW THREE ISLE LAKE MT. ODLUM III LOST CREEK SOUTH RACE HORSE Medicine Hat Lethbridge GARDINER HEADWATERS River AKAMINA Milk U. S. A. FLATTOP MANY GLACIER SNOW ON GROUND SNOW/RAIN INDICATORS MELT RATES Note Pillows maintained by Water Monitoring

11 HYDROLOGY / FORECASTING Eastern Slopes Snow Surveys:

12 Allison Pass we measured above average Snow Water

13 Unloading our skis and snow samplers Allison Pass

14 Slave River Hay River FORT CHIPEWYAN HIGH LEVEL Peace River Chinchaga River River Peace BN River Wabasca River MBN Clearwater R. FORT McMURRAY GRANDE PRAIRIE PEACE RIVER River N Athabasca Smoky Athabasca Little Smoky R. BN-N SLAVE LAKE River WHITECOURT River COLD LAKE JASPER EDSON Pembina R. Saskatchewan EDMONTON LLOYDMINSTER River Battle Figure 1 Plains Spring Runoff Outlook as of of March 1, 1, 2003 Legend MAN = Much-above-normal AN = Above-normal N = Normal BN = Below-normal MBN = Much-below-normal North ROCKY MOUNTAIN HOUSE BANFF Red Deer See Mountain Water Supply Forecasts Oldman PINCHER CREEK RED DEER River Bow CALGARY River CORONATION BN BROOKS River MEDICINE HAT LETHBRIDGE Milk River

15 PUBLIC SAFETY FORECAST & ISSUE ADVISORIES AND WARNINGS (Bank Full Considerations) HIGH STREAM FLOWS FLOODS ICE JAMS

16 Public Presentations with Stakeholders/Clients ( open lines of communication on current Water Operations) During the Irrigation Season WMO Water Managers meet weekly with Irrigation District Clients to go over the water supply situation Meetings provide an informal platform for reviewing reservoir operations and discussion for any concerns and/or operational changes Provide Clients with projections for the next week(s) OR long range forecasts to the end of the operating season NOTE - OpsModel will be a USEFUL Tool in Providing Meaningful/Empirical Projections to the IDs

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18 The Oldman River Reservoir

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20 6/5/95 23:00 6/6/95 2:00 6/6/95 5:00 6/6/95 8:00 6/6/95 11:00 6/6/95 14:00 6/6/95 17:00 6/6/95 20:00 6/6/95 23:00 6/7/95 2:00 6/7/95 5:00 6/7/95 8:00 6/7/95 11:00 6/7/95 14:00 6/7/95 17:00 6/7/95 20:00 6/8/95 3: Rainfall (mm) Flow in cubic metres per second Example Hydrograph Analysis... Correlating Precipitation Data to ORD Inflow Basin Average Rainfall Inflow to Oldman Dam

21 Background... Sample DataSet indicating the Variability in the DEMANDS the OpsModel will have to Simulate Year Lethbridge Northern Irrigation District Historical Annual Water Use ( ) River Diversion (Acre Feet) Keho Reservoir Plus/Minus (Acre Feet) Acreage Actually Irrigated Acre Foot/ Acre Inches/Acre ,700 20,500 96, ,400 17,750 97, ,900 8,360 93, ,700-1, , ,900 5,350 95, ,900-2,500 90, ,700 3, , ,700 16, , ,700-4, , ,800-28, , ,200-10, , ,900-12, , ,900 23, , ,700-31, , ,900 5, , ,700-5, , ,900-2, , ,700-1,130 67, ,850 4, , ,200-9, , ,600 4, , ,400 2, , ,750-3, , ,900 2, , ,400-2, , , , Avg 156, ,

22 450, , , ,000 Lethbridge Northern Headworks Diversion Annual Volumes Alberta Environment dam3 250, , , ,000 50, Annual Volume Max. Licensed Volume Maximum Licensed Volume Monitoring Leth. Northern Headworks

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28 Critical Issues in Reservoir Operation: i) Use of Flood Storage Whether flood inflows should be stored to reduce current damages or released to provide additional storage space in case new rains produce even greater flows ii) Release of Stored Water Whether water stored within the reservoir should be released for present use or retained for use during possible future droughts iii) Use of Available Water How the water released from the reservoir should be divided among potential users (Senior License versus Junior License) iv) Use of Total Storage Whether storage space should be filled to save water for beneficial use or emptied to contain potential floods

29 The Oldman River Operations Model Water needs in the Oldman Basin are met by releases from the Oldman reservoir and flows from Oldman River tributaries Water needs in the South Saskatchewan Basin are met from Oldman and Bow Rivers flow Water needs have specific legal priorities and must be met daily

30 The Oldman /S.Sask. Rivers system

31 Decision Support Tool WRMM has been developed to determine appropriate releases to meet all water needs. WRMM incorporates: Channel flow routing Meets Flow Objectives and consumptive demands on legal priority basis Predicts reservoir, instream and consumptive conditions every 6 hours, 7 days ahead

32 Stream flow travel times (Generalized Times) Oldman Reservoir releases take: 1-2 days to reach Lethbridge 3-4 days to reach the mouth 5 days to reach Medicine Hat Actual travel time depends on flow rate

33 Time of Travel : ORD to Lethbridge

34 Time of Travel : LNID Weir to Willow Cr Confluence

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36 Oldman Operations Model Demonstration Description of an actual model run

37 The Oldman River system model schematic Willow Creek Little Bow River Bow River S.Sask. River Medicine Hat Oldman Reservoir Oldman River Lethbridge Pincher Creek. Belly River St Mary River Laurent Conard Dec. 28, 2005

38 Willow Creek Little Bow River Bow River Oldman Reservoir Oldman River IFN Lethbridge IFN S.Sask. River 108 Medicine Hat Pincher Creek. Belly River St Mary River Non-Irrig. senior demand Non-Irrig. junior demand Laurent Conard Dec. 28, 2005

39 Willow Creek Little Bow River Bow River Oldman Reservoir Oldman River IFN IFN Lethbridge S.Sask. River Medicine Hat Pincher Creek. Belly River St Mary River Non-Irrig. senior demand Non-Irrig. junior demand Junior irrigation licenses Senior irrigation licenses Laurent Conard Dec. 28, 2005

40 The Oldman River Operations Model Willow Creek Little Bow River Bow River Reservoir inflow Oldman Reservoir LNID diversion Oldman River IFN IFN Lethbridge S.Sask. River Medicine Hat Pincher Creek. Belly River St Mary River Non-Irrig. senior demand Non-Irrig. junior demand Junior irrigation licenses Senior irrigation licenses LNID diversion Laurent Conard Dec. 28, 2005

41 System and data flow diagram WEB server-edmonton Natural flow data - Website Recorded flow data Text file Network server Lethbridge/Calgary Recorded stream flows, reservoir elevation, diversion, precipitation Natural flows Consumptive profiles, evaporation Graphical User Interface VB.Net Input data Loading, QA/QC and chart display Model results Chart display using image map of basin Natural flows WRMM WRMM output results Web (Future Plan)

42 Instream Flow Needs (IFN) for Aquatic Environment - 4 Components: Fish Habitat Riparian Vegetation (Cottonwood) Water Quality Channel Maintenance WMO manages the Oldman River Dam to take advantage of high flow conditions when they do occur to benefit the aquatic environment. During certain times of the year, there may be opportunities for flow management to provide benefits to the Aquatic Environment. The OLDMAN RIVER DAM, is a multi purpose facility. It releases stored water to help licensed water users avoid shortages, to help meet apportionment, and to maintain flows for the AQUATIC ENVIRONMENT.

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44 Species of Interest in the Oldman River Basin Brown Trout Rainbow Trout Bull Trout Mtn Whitefish CutThroat Trout Walleye Northern Pike Fall Spring Fall Fall Spring Spring Spring Note - the competing times of spawning for the various species

45 Goals of Water for Life 1. Safe, secure drinking water supply 2. Healthy aquatic ecosystems 3. Reliable, quality water supplies for a sustainable economy

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47 Pine Coulee Dam & Outlet Works

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49 St.Mary Dam & Spillway

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58 How is water managed? (Cont d) April 1-Oct 1 31 (irrigation season) Canada entitled to 75% of St. Mary R. for Q < 666 cfs +50% of St. Mary Flow above 666 cfs U.S. entitled to 75% of Milk River Q < 666 cfs +50% of Milk R. Flow above 666 cfs Nov 1 March 31 (non-irrigation season) U.S. & Canada each entitled to 50% of Milk & St. Mary Computation Procedure Daily Accounting Balance Period (currently semi-monthly) monthly) Use it or Lose it (no banking of water)

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61 Before signing off... WMO Operations can be accessed by anyone with internet access at the following department web site - click Water Manage. Reports Oldman Operations Team Internet Web Postings on a Daily Basis: (double click address) ult.aspx

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71 New Stations List: Lethbridge Northern System Additions? ROLDMAC ( curve extension NEEDS to be resolved if Operators are to use this site) Oldman River at Ft Macleod Monarch Diversion WL Station/Flow Quantify delivery to LNID Keho Reservoir Inflow Reservoir balancing required and delivery to LNID Keho Reservoir Outflow Needed for Fall Drawdown to Target Level

72 Just thought I d add in this beauty shot how everything looks when the snow has gone.

73 Thank You