Dirty Currents

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by trjones17
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Earth Sciences

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Dirty Currents

Dirty CurrentsTim Jones: Dan Stern

The Issues of Marine Debris- Aesthetics (looks bad)- Health and safety (causes injury, boats and animals)- Economic impacts (cost, habitat damage)- Ingestion of animals, especially Ablatross which ingest the trash and starve to death.-Transportation of invasive species-Marine Debris is very persistent, it is solid, manufactured,disposed of or abandoned.

The OSCURS model is a simulator that is used to predict the path of a piece of marine debris over time to where it will end up. The path of the marine debris changes due to the currents that the marine debris is on and the strength of the wind. The debris goes through the Kuroshio current and loops around in the California current and finally in some cases onto the N. Equatorial. -1.0:Red-1.5:Yellow-2.0:Orange

What can be done? - When tracking the debris, it shows us not only the circulation of the earths ocean, but the direction of the currents, and the velocity of how fast the currents are. There are a few things that can be done...-People are able to find marine debris and send data to various websites where researchers and sceientist are able to clean up the debris, increasing the health of animals and safety to people. -Due to people helping out, scientists are able to find where the majority of the debris is ending up to get a better understanding of the ocean and its currents.

On March 11, 2011 a 9.0 magnitude earthquake hit Japan, killing 16,000 and injuring 6,000. It took place near the east coast of Honshu Japan (38.297°N,142.372°E). The tsunami resulted from thrust faulting on or near subduction zone plate boundary between the Pacific and North American Plates.

Above is a model run by OSCURS of what NOAA predicts the marine debris path to be years following the incident.

http://marinedebris.noaa.gov/japan-tsunami-marine-debris/japan-tsunami-marine-debris-sightings- This website talks about a sighting off of British Columbia, were an at sea vessel reported seeing debris from the tsunami based on thier registration number. http://response.restoration.noaa.gov/about/media/tracking-marine-debris-japanese-tsunami.html- This website talks about the debris starting to arrive in the United States. http://www.marinedebris.engr.uga.edu/newmap/-This website is similar to that of the OSCURS website where it downloads information and where locations of the marine debris are being found


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