Has anyone observed a vertical velocity anomaly such as the one pictured? This effect is persistent for our entire deployment. It can be seen as a blue band along the bottom of the 3rd subplot. Any suggestions would be appreciated.
About the deployment:
Our Signature 1000 was deployed at 0.35 m above the sea bed in 250 m of water on the continental shelf of Western Australia. The instrument was set up to measure the bottom ~20 m of the water column with a bin size of 0.2 m. Internal waves regularly propagate past the site generating strong near bed currents.
Sea bed was predicted to be very flat mud, and a grab sample confirmed fine sediment with a mean diameter of ~25 um. It was suggested the instrument could have been deployed within a near bed 'fluid mud' layer.
Please sign in to leave a comment.