Japan Agency for Marine-Earth Science and Technology, Environmental
Variability Prediction and Application Research Group, Yokohama Institute
for Earth Sciences, 3173-25 Showa-machi, Kanagawa Ward, Yokohama, Kanagawa 236-0001,
Japan
Yasumasa Miyazawa
Japan Agency for Marine-Earth Science and Technology, Environmental
Variability Prediction and Application Research Group, Yokohama Institute
for Earth Sciences, 3173-25 Showa-machi, Kanagawa Ward, Yokohama, Kanagawa 236-0001,
Japan
Tomohiko Tsunoda
The Ocean Policy Research Institute of the Sasakawa Peace Foundation,
1-15-16, Toranomon Minato Ward, Tokyo 105-8524, Japan
Tsuneo Ono
Japan Fisheries Research Education Agency, 15F Queen's Tower B, 2-3-3 Minato
Mirai, Nishi Ward, Yokohama, Kanagawa 220-6115, Japan
Viewed
Total article views: 2,657 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
1,689
893
75
2,657
180
61
98
HTML: 1,689
PDF: 893
XML: 75
Total: 2,657
Supplement: 180
BibTeX: 61
EndNote: 98
Views and downloads (calculated since 21 May 2019)
Cumulative views and downloads
(calculated since 21 May 2019)
Total article views: 2,019 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
1,380
570
69
2,019
103
59
93
HTML: 1,380
PDF: 570
XML: 69
Total: 2,019
Supplement: 103
BibTeX: 59
EndNote: 93
Views and downloads (calculated since 16 Dec 2019)
Cumulative views and downloads
(calculated since 16 Dec 2019)
Total article views: 638 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
309
323
6
638
77
2
5
HTML: 309
PDF: 323
XML: 6
Total: 638
Supplement: 77
BibTeX: 2
EndNote: 5
Views and downloads (calculated since 21 May 2019)
Cumulative views and downloads
(calculated since 21 May 2019)
Viewed (geographical distribution)
Total article views: 2,657 (including HTML, PDF, and XML)
Thereof 2,376 with geography defined
and 281 with unknown origin.
Total article views: 2,019 (including HTML, PDF, and XML)
Thereof 1,834 with geography defined
and 185 with unknown origin.
Total article views: 638 (including HTML, PDF, and XML)
Thereof 542 with geography defined
and 96 with unknown origin.
Using water quality data collected at 289 monitoring sites as part of the Water Pollution Control Program, we evaluated the long-term trends of pH in Japanese coastal seawater at ambient temperature from 1978 to 2009. We found that the annual maximum pH, which generally represents the pH of surface waters in winter, had decreased at 75 % of the sites, but had increased at the remaining sites. The annual maximum pH decreased at an average rate of −0.0024 yr−1, with relatively large deviations.
Using water quality data collected at 289 monitoring sites as part of the Water Pollution...