General Info ASL Home ASL Home Environmental Sciences, Flow Measurement, Oceanongraphy, Ice-Keel Drafts, Wave Measurements

Company Information

Environmental Products

Ice Profiler
Wave Profiler
Water Column Profiler
IRIS- Imagenex Datalogger
ASFM - Open Channel
Mooring Designs
WERA HF Radar
Shallow Water Ice Profiler
Acoustic Scintillation Flow Meter


Environmental Services

Data Acquisition & Analysis
Equip. Deployment & Recovery
Training
Numerical Modeling
Custom Acoustic Instruments

Environmental Projects

Key Projects


Equipment Leasing
Oceanographic Equipment
Canada, USA, International

Web Site Updates
Press releases & Newsletters
Subscribe to newsletter

Technical Reports
Instrumentation, MET-Ocean,
Arctic, Limnological Studies

Contact Information
. . . for solutions to your
toughest challenges.


Links
Industry Links
Community Links

Staff
Main Contacts
Search Directory
International Reps


UK Reps    Japan Reps    Malaysia Reps

limnology

SITE MAP
 



 

 

Back to Top

 

 

 

 

 

 

Back to Top

 

 

 

 

 

 

 

 

 

 

 

 

Back to Top

 
hydro electric plants

Innovative Solutions for Hydro-Electric Markets

Forebay Circulation Studies
Fish Survival & Habitat

 

 

Forebay Circulation Studies

current profilerIn 1993, Chelan P.U.D. Washington, U.S.A needed for flow data for the design of fish diversion screens. Data collection was complicated by magnetic disturbance caused by the proximity to the dam. Magnetic compasses used on most current-meter beams are unreliable when measurements are made close to dam walls and the associated power-generating infrastructure.

Our Solution:

  • Acoustic Doppler Current Profiler (ADCP) interfaced with a submersible gyro-compass.
  • Three-dimensional current surveys were quickly and efficiently performed and data collected within the forebay.
  • The results were used to verify model output.
  • This technique has been used subsequently by other investigators of near-dam flow conditions.
 

Fish Survival & Habitat

In 1996, Cominco Ltd., B.C., Canada needed to expand power generation capability at one of their plants. They needed to know whether this expansion would result in detrimental effects on the downstream habitat of sturgeon fish population levels.

Our Solution:water circulation maps

  • Acoustic Doppler Current Profiler (ADCP) provided comprehensive maps of the water circulation under varying discharge conditions.
  • Six separate flow surveys, under varying discharge conditions, were completed in three days.
  • Shortly after, three-dimensional velocity plots, quantifying the changes in the flow that could potentially affect the endangered sturgeon, were provided to the client.
  • The flow survey results were a key element in assessing the effects of the operation on the environment. On the basis of an environmental submission to government, Cominco were granted approval to proceed with their expansion
Contact ASL for Solutions to your Hydro-Electric Needs!
ice measurements
Off-Shore Oil & Gas ~ Coastal & Fresh Water
Ports & Harbors ~ Ocean & Ice Research ~
Hydro-Electric
environmental studies
[ Home ] ~ [ About ASL ] ~ [ Products ] ~ [ Services ]  
  [ News ] ~ [ Leasing ] ~ [ Technical Reports ] ~ [ Links ]
sediment transport
ASL Environmental Sciences, 1986 Mills Road, Sidney, BC Canada V8L 5Y3 ~ Call Toll Free: 1-877-656-0177
[ Contact Us ] ~ [ Site Map ]
All contents of this site Copyright © ASL Environmental Sciences. All Rights Reserved
Legal Disclaimer ~ Webmaster