Re: Measuring vertical velocity with ADCPUp to General comments
Re: Measuring vertical velocity with ADCPPosted by lhancke at June 19. 2012
Could you give me some advise on measuring the vertical velocity component with ADCP technology? Until now I have only been interested in the horizontal components. I looked at data that we collected in the past with a 600KhZ AWAC and see a lot of noise in the vertical component with some unrealistic measurements (attached).
I have also read in the forum that measuring w velocity with ship's ADCP is problematic.
What is the best instrument and sampling protocol to use to accurately measure velocity?
Re: Measuring vertical velocity with ADCPPosted by Jonas Røstad at June 20. 2012
Re: Measuring vertical velocity with ADCPPosted by lhancke at June 22. 2012
I uploaded the file to your ftp site under folder 'hancke'.
Just a few details about the deployment -
The 600 kHz AWAC was deployed in 80m of water on a subsurface float (instrument depth 40m). Currents were collected every 30 mins. The region is known for strong currents and located in an upwelling cell, so we expect to see an increase in the vertical velocity component with upwelling/downwelling events.
I look forward to your reply.