Switch to ASCAT wind data for daily updates SCUD dataset is open for free unrestricted use and distribution Disseminated by APDRC servers httpapdrcsoesthawaiieduprojectsSCUD LAS LAS7 ID: 397173
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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, DChartSCUD manual : http://apdrc.soest.hawaii.edu/projects/SCUD/SCUD_manual_02_17.pdfSCUD users listserver: http://apdrc.soest.hawaii.edu/projects/SCUD/registration.html
Final Product and data access
Ocean Surface Currents and Circulation of Marine Debris
Jan 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 1999
ending 18 NOV 2009
SCUD - Surface
CUrrents
from Diagnostic model
Drifters = marine debris
Drifter Data
AOML – 8058 drifters
SCUD model
Drifters' Trajectories
Numerical Experiment: SCUD currents
applied on ocean tracers released daily
from coast and weighted by coastal population
count
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 model
Rate of “Mar 11, 2011” model debris deposition on shore after 10 years
678,305 tracers released
then
advected
by daily SCUD currents
Hawaii
Asia
Alaska
California
years
Daily updates:
http://iprc.soest.hawaii.edu/users/hafner/PUBLIC/TSUNAMI_DEBRIS/tsunami_tracers_no_vector_large.html