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Empirical algorithms to estimate water column pH in the Southern Ocean

Author(s): Williams, Nancy L; Juranek, Lauren W; Johnson, Kenneth S; Feely, Richard A; Riser, Stephen C; et al

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dc.contributor.authorWilliams, Nancy L-
dc.contributor.authorJuranek, Lauren W-
dc.contributor.authorJohnson, Kenneth S-
dc.contributor.authorFeely, Richard A-
dc.contributor.authorRiser, Stephen C-
dc.contributor.authorTalley, Lynne D-
dc.contributor.authorRussell, Joellen L-
dc.contributor.authorSarmiento, Jorge L-
dc.contributor.authorWanninkhof, Rik-
dc.date.accessioned2022-01-25T14:58:57Z-
dc.date.available2022-01-25T14:58:57Z-
dc.date.issued2016-03-28en_US
dc.identifier.citationWilliams, Nancy L., Lauren W. Juranek, Kenneth S. Johnson, Richard A. Feely, Stephen C. Riser, Lynne D. Talley, Joellen L. Russell, Jorge L. Sarmiento, and Rik Wanninkhof. "Empirical algorithms to estimate water column pH in the Southern Ocean." Geophysical Research Letters 43, no. 7 (2016): 3415-3422. doi:10.1002/2016GL068539.en_US
dc.identifier.issn0094-8276-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr13f4km99-
dc.description.abstractEmpirical algorithms are developed using high‐quality GO‐SHIP hydrographic measurements of commonly measured parameters (temperature, salinity, pressure, nitrate, and oxygen) that estimate pH in the Pacific sector of the Southern Ocean. The coefficients of determination, R2, are 0.98 for pH from nitrate (pHN) and 0.97 for pH from oxygen (pHOx) with RMS errors of 0.010 and 0.008, respectively. These algorithms are applied to Southern Ocean Carbon and Climate Observations and Modeling (SOCCOM) biogeochemical profiling floats, which include novel sensors (pH, nitrate, oxygen, fluorescence, and backscatter). These algorithms are used to estimate pH on floats with no pH sensors and to validate and adjust pH sensor data from floats with pH sensors. The adjusted float data provide, for the first time, seasonal cycles in surface pH on weekly resolution that range from 0.05 to 0.08 on weekly resolution for the Pacific sector of the Southern Ocean.en_US
dc.format.extent3415 - 3422en_US
dc.language.isoen_USen_US
dc.relation.ispartofGeophysical Research Lettersen_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleEmpirical algorithms to estimate water column pH in the Southern Oceanen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1002/2016GL068539-
dc.identifier.eissn1944-8007-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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