Streaming Media

Presentation Abstract

How does stuff wash ashore in the Salish Sea? The shores of the Salish Sea are covered in logs and trash ranging from large half-destroyed floats down to small pieces of plastic. How does it all get there? Over the past 6 years nearly 500 drifters, equipped with GPS to record positions with an accuracy of a few meters every 10-20 minutes, have been released in these waters (see drifters.eos.ubc.ca), and they have washed ashore more than 700 times. This resulted in plenty of interesting anecdotes, as tracks show a variety of surprising behaviors (including getting run down by ships). But, in addition, a statistical analysis was used to answer some interesting general questions about the Salish Sea. For example: where do things like to wash ashore? Can they escape the Salish Sea by going out into the Pacific? At what stage of the tide does stuff tend to run aground? What's the probability of grounding for items floating 20, 50, or 100m offshore? What are ocean currents like near the shore? The answers to these questions may improve modelling and policy (and they are fun science).

Session Title

Poster Session 3: Land - Water Connections

Conference Track

SSE14: Posters

Conference Name

Salish Sea Ecosystem Conference (2022 : Online)

Document Type

Event

SSEC Identifier

SSE-posters-85

Start Date

27-4-2022 4:00 PM

End Date

27-4-2022 4:30 PM

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Type

Text

Language

English

COinS
 
Apr 27th, 4:00 PM Apr 27th, 4:30 PM

How does stuff wash ashore in the Salish Sea?

How does stuff wash ashore in the Salish Sea? The shores of the Salish Sea are covered in logs and trash ranging from large half-destroyed floats down to small pieces of plastic. How does it all get there? Over the past 6 years nearly 500 drifters, equipped with GPS to record positions with an accuracy of a few meters every 10-20 minutes, have been released in these waters (see drifters.eos.ubc.ca), and they have washed ashore more than 700 times. This resulted in plenty of interesting anecdotes, as tracks show a variety of surprising behaviors (including getting run down by ships). But, in addition, a statistical analysis was used to answer some interesting general questions about the Salish Sea. For example: where do things like to wash ashore? Can they escape the Salish Sea by going out into the Pacific? At what stage of the tide does stuff tend to run aground? What's the probability of grounding for items floating 20, 50, or 100m offshore? What are ocean currents like near the shore? The answers to these questions may improve modelling and policy (and they are fun science).