¼ degree surface currents maps: daily from 01aug1999 till 19nov2009 (span of qscat data)
DESCRIPTION
Ocean Surface Currents and Circulation of Marine Debris. Jan Hafner and Nikolai Maximenko , IPRC/SOEST University of Hawaii. IPRC Symposium 7 th September 2011. Hawaii. Asia. Alaska. years. California. SCUD - Surface CUrrents from Diagnostic model. Final Product and data access. - PowerPoint PPT PresentationTRANSCRIPT
¼ degree surface currents maps: daily from 01Aug1999 till 19Nov2009 (span of QSCAT data)
Switch to ASCAT wind data for daily updates SCUD dataset is open for free unrestricted use and distribution Disseminated by APDRC servers :
http://apdrc.soest.hawaii.edu/projects/SCUD/ LAS, LAS7, OpeNDAP, DChart SCUD manual :
http://apdrc.soest.hawaii.edu/projects/SCUD/SCUD_manual_02_17.pdf
SCUD users listserver: http://apdrc.soest.hawaii.edu/projects/SCUD/registration.html
Final Product and data access
Ocean Surface Currents and Circulation of Marine DebrisJan Hafner and Nikolai Maximenko, IPRC/SOEST University of Hawaii
IPRC Symposium 7th September 2011
Application on Marine Debris
Japanese Tsunami 11th March 2011
AVISO sea level QSCAT ocean surface wind
Ocean surface currents
SCUD
Starting 01 AUG 1999ending 18 NOV 2009
SCUD - Surface CUrrents from Diagnostic model
Drifters = marine debris
Drifter Data AOML – 8058
drifters
SCUD model
Drifters' Trajectories
Numerical Experiment: SCUD currentsapplied on ocean tracers released dailyfrom coast and weighted by coastal populationcount
Where the marine debris goes?How it gets there ?
Photos of debris plume off Honshu after March 11, 2011 tsunami
Courtesy of US Navy
Conclusions:•Hawaii is the final destination of marine debris from the North Pacific – impacted the most•application of ocean surface current models on marine debris problem•more direct observations needed•March 2011 tsunami in Japan – opportunity to gain new knowledge about marine debris propagation and final destination
Estimate: 6-10 million tons released. Where will it all go?
SCUD Statistical model
SCUD
Statistical modelRate of “Mar 11, 2011” model debris deposition on shore after 10 years
678,305 tracers released then advected by daily SCUD currents
Hawaii
AsiaAlaska
California years
Daily updates:http://iprc.soest.hawaii.edu/users/hafner/PUBLIC/TSUNAMI_DEBRIS/tsunami_tracers_no_vector_large.html