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: 2,590 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
1,636
881
73
2,590
175
56
93
HTML: 1,636
PDF: 881
XML: 73
Total: 2,590
Supplement: 175
BibTeX: 56
EndNote: 93
Views and downloads (calculated since 21 May 2019)
Cumulative views and downloads
(calculated since 21 May 2019)
Total article views: 1,958 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
1,328
563
67
1,958
100
54
88
HTML: 1,328
PDF: 563
XML: 67
Total: 1,958
Supplement: 100
BibTeX: 54
EndNote: 88
Views and downloads (calculated since 16 Dec 2019)
Cumulative views and downloads
(calculated since 16 Dec 2019)
Total article views: 632 (including HTML, PDF, and XML)
HTML
PDF
XML
Total
Supplement
BibTeX
EndNote
308
318
6
632
75
2
5
HTML: 308
PDF: 318
XML: 6
Total: 632
Supplement: 75
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: 2,590 (including HTML, PDF, and XML)
Thereof 2,311 with geography defined
and 279 with unknown origin.
Total article views: 1,958 (including HTML, PDF, and XML)
Thereof 1,774 with geography defined
and 184 with unknown origin.
Total article views: 632 (including HTML, PDF, and XML)
Thereof 537 with geography defined
and 95 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...