Abstract
This study attempts to establish a system for the sequential monitoring of beach litter using webcams placed at the Ookushi beach, Goto Islands, Japan, to establish the temporal variability in the quantities of beach litter every 90. min over a one and a half year period. The time series of the quantities of beach litter, computed by counting pixels with a greater lightness than a threshold value in photographs, shows that litter does not increase monotonically on the beach, but fluctuates mainly on a monthly time scale or less. To investigate what factors influence this variability, the time derivative of the quantity of beach litter is compared with satellite-derived wind speeds. It is found that the beach litter quantities vary largely with winds, but there may be other influencing factors.
| Original language | English |
|---|---|
| Pages (from-to) | 775-779 |
| Number of pages | 5 |
| Journal | Marine Pollution Bulletin |
| Volume | 60 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Apr 13 2010 |
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All Science Journal Classification (ASJC) codes
- Oceanography
- Aquatic Science
- Pollution
Cite this
Sequential monitoring of beach litter using webcams. / Kako, Shin'ichiro; Isobe, Atsuhiko; Magome, Shinya.
In: Marine Pollution Bulletin, Vol. 60, No. 5, 13.04.2010, p. 775-779.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Sequential monitoring of beach litter using webcams
AU - Kako, Shin'ichiro
AU - Isobe, Atsuhiko
AU - Magome, Shinya
PY - 2010/4/13
Y1 - 2010/4/13
N2 - This study attempts to establish a system for the sequential monitoring of beach litter using webcams placed at the Ookushi beach, Goto Islands, Japan, to establish the temporal variability in the quantities of beach litter every 90. min over a one and a half year period. The time series of the quantities of beach litter, computed by counting pixels with a greater lightness than a threshold value in photographs, shows that litter does not increase monotonically on the beach, but fluctuates mainly on a monthly time scale or less. To investigate what factors influence this variability, the time derivative of the quantity of beach litter is compared with satellite-derived wind speeds. It is found that the beach litter quantities vary largely with winds, but there may be other influencing factors.
AB - This study attempts to establish a system for the sequential monitoring of beach litter using webcams placed at the Ookushi beach, Goto Islands, Japan, to establish the temporal variability in the quantities of beach litter every 90. min over a one and a half year period. The time series of the quantities of beach litter, computed by counting pixels with a greater lightness than a threshold value in photographs, shows that litter does not increase monotonically on the beach, but fluctuates mainly on a monthly time scale or less. To investigate what factors influence this variability, the time derivative of the quantity of beach litter is compared with satellite-derived wind speeds. It is found that the beach litter quantities vary largely with winds, but there may be other influencing factors.
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UR - http://www.scopus.com/inward/citedby.url?scp=77952950335&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2010.03.009
DO - 10.1016/j.marpolbul.2010.03.009
M3 - Article
VL - 60
SP - 775
EP - 779
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
SN - 0025-326X
IS - 5
ER -