globalchange  > 过去全球变化的重建
DOI: 10.1016/j.marpolbul.2017.08.060
Scopus记录号: 2-s2.0-85029222435
论文题名:
Quantification of marine macro-debris abundance around Vancouver Island, Canada, based on archived aerial photographs processed by projective transformation
作者: Kataoka T.; Murray C.C.; Isobe A.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
语种: 英语
英文关键词: Aerial photography ; Image analysis technique ; Marine macro-debris ; Projective transformation ; Vancouver Island, Canada
Scopus关键词: aircraft ; Canada ; geographic mapping ; image analysis ; photography ; satellite imagery ; seashore
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science ; Earth and Planetary Sciences: Oceanography ; Environmental Science: Pollution
英文摘要: The abundance of marine macro-debris was quantified with high spatial resolution by applying an image processing technique to archived shoreline aerial photographs taken over Vancouver Island, Canada. The photographs taken from an airplane at oblique angles were processed by projective transformation for georeferencing, where five reference points were defined by comparing aerial photographs with satellite images of Google Earth. Thereafter, pixels of marine debris were extracted based on their color differences from the background beaches. The debris abundance can be evaluated by the ratio of an area covered by marine debris to that of the beach (percent cover). The horizontal distribution of percent cover of marine debris was successfully computed from 167 aerial photographs and was significantly related to offshore Ekman flows and winds (leeway drift and Stokes drift). Therefore, the estimated percent cover is useful information to determine priority sites for mitigating adverse impacts across broad areas. © 2017 Elsevier Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/88089
Appears in Collections:过去全球变化的重建
全球变化的国际研究计划

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作者单位: Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science, Chiba, Japan; North Pacific Marine Science Organization (PICES), Sidney, British Columbia, Canada; Institute of Ocean Sciences, Fisheries and Oceans Canada, Sidney, British Columbia, Canada; Research Institute for Applied Mechanics, Kyushu University, Fukuoka, Japan

Recommended Citation:
Kataoka T.,Murray C.C.,Isobe A.. Quantification of marine macro-debris abundance around Vancouver Island, Canada, based on archived aerial photographs processed by projective transformation[J]. Marine Pollution Bulletin,2017-01-01
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