MW&A

Hydroclimatology and Solar Explorations

Ocean pH and acidification

Ocean pH of the 1980s

This post documents results from my global pelagic ocean pH data extraction exercises focused on the years 1981 – 1990 from the source at NOAA NODC Ocean Climate Laboratory :    http://www.nodc.noaa.gov/OCL/

After filtering for pelagic depth (depth less than or equal to 200 m) and for outliers (any pH values < 6 and >10), the final data set profiled here consists of  416,629 records.

First a summary table, followed by charts of pH vs depth and graphics of site collection locations for each year.

pH Year Number of Pelagic Samples Average pH Standard Deviation
1981 48793 8.16 0.21
1982 51090 8.17 0.19
1983 50597 8.16 0.18
1984 40295 8.17 0.17
1985 36318 8.17 0.23
1986 34194 8.19 0.20
1987 42785 8.18 0.19
1988 42550 8.16 0.20
1989 33363 8.15 0.22
1990 36644 8.14 0.21

1981_pelagic_pH
pelagicpHDepth_1982pelagicpHDepth_1983pelagicpHDepth_1984pelagicpHDepth_1985pelagicpHDepth_1986pelagicpHDepth_1987pelagicpHDepth_1988pelagicpHDepth_1989pelagicpHDepth_1990phG1981phG1982phG1983phG1984phG1985phG1986phG1987phG1988phG1989phG1990

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