Record Details
Aragonite saturation state dynamics in a coastal upwelling zone
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Aragonite saturation state dynamics in a coastal upwelling zone |
| Names |
Harris, Katherine E.
(creator) DeGrandpre, Michael D. (creator) Hales, Burke (creator) |
| Date Issued | 2013-06-06 (iso8601) |
| Note | This is the publisher’s final pdf. The published article is copyrighted by the American Geophysical Union and can be found at: http://www.agu.org/journals/gl/. |
| Abstract | Abstract: Coastal upwelling zones may be at enhanced risk from ocean acidification as upwelling brings low aragonite saturation state (Ω[subscript Ar]) waters to the surface that are further suppressed by anthropogenic CO₂. Ω[subscript Ar] was calculated with pH, pCO₂, and salinity-derived alkalinity time series data from autonomous pH and pCO₂ instruments moored on the Oregon shelf and shelf break during different seasons from 2007 to 2011. Surface Ω[subscript Ar] values ranged between 0.66 ± 0.04 and 3.9 ± 0.04 compared to an estimated pre-industrial range of 1.0 ± 0.1 to 4.7 ± 0.1. Upwelling of high-CO₂ water and subsequent removal of CO₂ by phytoplankton imparts a dynamic range to Ω[subscript Ar] from ~1.0 to ~4.0 between spring and autumn. Freshwater input also suppresses saturation states during the spring. Winter Ω[subscript Ar] is less variable than during other seasons and is controlled primarily by mixing of the water column. |
| Genre | Article |
| Topic | aragonite saturation states |
| Identifier | Harris, K., DeGrandpre, M., & Hales, B. (2013). Aragonite saturation state dynamics in a coastal upwelling zone. Geophysical Research Letters, 40(11), 2720-2725. doi:10.1002/grl.50460 |
