dBSea

dBSea - underwater noise prediction software

[dBSea @dBSeaLtd]

@WattWeKnow If you're interested in log-type transmission loss models, you should see: https://t.co/Z3L4n2q6bb section 3, p. 28.
These can be good for shallow water, and can be done in a spreadsheet!

[dBSea @dBSeaLtd]

Source geometries for modelling piledriving - a midweek ponder:
https://t.co/XM1dQVVzj9

[dBSea @dBSeaLtd]

@WattWeKnow Good question. No.
The blog post only looks at source geometry and ignores variations in the environment (sediment type/layers, soundspeed profile, temperature, etc).

[dBSea @dBSeaLtd]

@Equinor & @Irwin_Carr co-created a (free) tool for rapid design choice assessment of noisy activities. https://t.co/W0IESkqflP

[dBSea @dBSeaLtd]

A great video from #realengineering on the tidal power potential of Ireland and UK https://t.co/hA8SHDbdXU

[dBSea @dBSeaLtd]

One value to rule them all: speculation on Kurtosis-weighted SEL https://t.co/jEeBjEIGJH

[dBSea @dBSeaLtd]

A single dB-value to rule them all!?

What is kurtosis anyway?

https://t.co/jEeBjEr5l7

[dBSea @dBSeaLtd]

We've updated our look at what matters when you model
https://t.co/9Pjv7xHTmw

[dBSea @dBSeaLtd]

What happens as you increase the model complexity?
https://t.co/9Pjv7xqiuY

[dBSea @dBSeaLtd]

We're especially excited to get recordings of this type of equipment. Maybe we can model a whole farm? #an2019

[SMRU Consulting @SMRU_Consulting]

Denise Risch presents results of noise monitoring from the Atlantis turbine at Meygen. Noise affected by flow and rotational speeds and detectable above ambient to 2km+ #AN2019

[dBSea @dBSeaLtd]

Last day at the stall - well have to clear for the disco tonight. We wonder if we will get TTS!? @MARSHALL_DAY #an2019

[dBSea @dBSeaLtd]

24 harbour porpoises show avoidance at mean level of 162.8 dB SEL (single strike) #an2019

[dBSea @dBSeaLtd]

New thinking at #an2019 on "Effective quiet". Max level that will never cause hearing impairment (suggested levels in image).
(Effective quiet is not intended to address masking)

[dBSea @dBSeaLtd]

That bump at 20Hz is fin whales! Background noise in north west Atlantic, Feb and Aug. #an2019

[dBSea @dBSeaLtd]

Looking forward to large review of #marine #noise in Jan 2020 by Bob Gisiner at al. #an2019

[dBSea @dBSeaLtd]

This should be good! #an2019
W/ @DYKsloth

[dBSea @dBSeaLtd]

This agent based modelling reminds us of:
https://t.co/xEEyeJb60P
#an2019
Looking forward to finishing our Monte-Carlo agents module as well as the other moving receiver module! Come see in coffee break 😉

[dBSea @dBSeaLtd]

We're at a coffe break at #an2019
Uw noise propagation modelling and audio analyses by @MARSHALL_DAY

[dBSea @dBSeaLtd]

Just some of the new info on hearing tresholds to incorporate are presented at #an2019 #minkewhale #beardedseal (sorry for poor image) also further support for NOAA/NMFS 2018 limits and Southall 2019.

[dBSea @dBSeaLtd]

First morning at @AquaticNoise
Exited!