The Importance of Freshwater to Spatial Variability of Aragonite Saturation State in the Gulf of Alaska

Siedlecki, Samantha A.; Pilcher, Darren J.; Hermann, Albert J.; Coyle, Ken; Mathis, Jeremy

doi:10.1002/2017jc012791

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The Importance of Freshwater to Spatial Variability of Aragonite Saturation State in the Gulf of Alaska

2017
By Siedlecki, Samantha A. ; Pilcher, Darren J. ; Hermann, Albert J. ; ...
Source: Journal of Geophysical Research: Oceans, 122(11), 8482-8502

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Journal Title:

Journal of Geophysical Research: Oceans
Personal Author:

Siedlecki, Samantha A. ; Pilcher, Darren J. ; Hermann, Albert J. ; Coyle, Ken ; Mathis, Jeremy

Siedlecki, Samantha A. ; Pilcher, Darren J. ; Hermann, Albert J. ; Coyle, Ken ; Mathis, Jeremy Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

High-latitude and subpolar regions like the Gulf of Alaska (GOA) are more vulnerable than equatorial regions to rising carbon dioxide (CO 2) levels, in part due to local processes that amplify the global signal. Recent ﬁeld observations have shown that the shelf of the GOA is currently experiencing seasonal corrosive events (carbonate mineral saturation states X,X<1), including suppressed Xin response to ocean acidiﬁcation as well as local processes like increased low-alkalinity glacial meltwater discharge. Whilethe glacial discharge mainly inﬂuences the inner shelf, on the outer shelf, upwelling brings corrosive waters from the deep GOA. In this work, we develop a high-resolution model for carbon dynamics in the GOA, identify regions of high variability of X, and test the sensitivity of those regions to changes in the chemistry
Keywords:

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Earth And Planetary Sciences (miscellaneous) Geochemistry And Petrology Geophysics Oceanography Space And Planetary Science
Source:

Journal of Geophysical Research: Oceans, 122(11), 8482-8502
DOI:

https://doi.org/10.1002/2017jc012791
ISSN:

2169-9275
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA10OAR4320148 ; Grant no. NA15OAR4320063

Grant no. NA10OAR4320148 ; Grant no. NA15OAR4320063 Less -
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Main Document Checksum:

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urn:sha256:5576fbee26458558517f0bd5f564f6df373fcad722b4c259b491487b3cde83fb
Download URL:

https://repository.library.noaa.gov/view/noaa/54683/noaa_54683_DS1.pdf
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