TY - JOUR
T1 - Sequential webcam monitoring and modeling of marine debris abundance
AU - Kako, Shin'ichiro
AU - Isobe, Atsuhiko
AU - Kataoka, Tomoya
AU - Yufu, Kei
AU - Sugizono, Shuto
AU - Plybon, Charlie
AU - Murphy, Thomas A.
N1 - Funding Information:
This research was funded by the Ministry of the Environment of Japan through the North Pacific Marine Science Organization (PICES). We are grateful to the NASA EOSDIS Physical Oceanography Distributed Active Archive Center (PO.DAAC) at the Jet Propulsion Laboratory, Pasadena, California ( https://podaac.jpl.nasa.gov ), Archiving, Validation, and Interpretation of Satellite Oceanographic Data (AVISO) with support from Cnes (Le Centre national d'études spatiales; http://www.aviso.altimetry.fr/duacs/ ), Remote Sensing Systems ( http://www.remss.com ) sponsored by the National Oceanographic Partnership Program and NASA Earth Science Physical Oceanography Program, and the U.S. Geological Survey ( https://www2.usgs.gov/water/ ) for providing satellite observations and river discharge data. We appreciate Dr. Nir Barnea for his help in installing the webcam in Newport, and a member of our technical staff, Mr. Masato Motoi, who patiently counted debris numbers on the photographs. We thank Steven Hunter, M.S., from Edanz Group ( www.edanzediting.com/ac ) for editing a draft of this manuscript. The two anonymous reviewers' comments and suggestions helped us improved our manuscript substantially.
Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/7
Y1 - 2018/7
N2 - The amount of marine debris washed ashore on a beach in Newport, Oregon, USA was observed automatically and sequentially using a webcam system. To investigate potential causes of the temporal variability of marine debris abundance, its time series was compared with those of satellite-derived wind speeds and sea surface height off the Oregon coast. Shoreward flow induced by downwelling-favorable southerly winds increases marine debris washed ashore on the beach in winter. We also found that local sea-level rise caused by westerly winds, especially at spring tide, moved the high-tide line toward the land, so that marine debris littered on the beach was likely to re-drift into the ocean. Seasonal and sub-monthly fluctuations of debris abundance were well reproduced using a simple numerical model driven by satellite-derived wind data, with significant correlation at 95% confidence level.
AB - The amount of marine debris washed ashore on a beach in Newport, Oregon, USA was observed automatically and sequentially using a webcam system. To investigate potential causes of the temporal variability of marine debris abundance, its time series was compared with those of satellite-derived wind speeds and sea surface height off the Oregon coast. Shoreward flow induced by downwelling-favorable southerly winds increases marine debris washed ashore on the beach in winter. We also found that local sea-level rise caused by westerly winds, especially at spring tide, moved the high-tide line toward the land, so that marine debris littered on the beach was likely to re-drift into the ocean. Seasonal and sub-monthly fluctuations of debris abundance were well reproduced using a simple numerical model driven by satellite-derived wind data, with significant correlation at 95% confidence level.
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U2 - 10.1016/j.marpolbul.2018.04.075
DO - 10.1016/j.marpolbul.2018.04.075
M3 - Article
C2 - 29773443
AN - SCOPUS:85047218390
SN - 0025-326X
VL - 132
SP - 33
EP - 43
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
ER -
