Seasonal and spatial variabilities in northern Gulf of Alaska surface water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust

Crusius, John; Schroth, Andrew W.; Resing, Joseph A.; Cullen, Jay; Campbell, Robert W.

doi:10.1002/2016GB005493

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

Seasonal and spatial variabilities in northern Gulf of Alaska surface water iron concentrations driven by shelf sediment resuspension, glacial meltwater, a Yakutat eddy, and dust

2017
By Crusius, John ; Schroth, Andrew W. ; Resing, Joseph A. ; ...
Source: Global Biogeochemical Cycles, 31(6), 942-960

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Details:

Journal Title:

Global Biogeochemical Cycles
Personal Author:

Crusius, John ; Schroth, Andrew W. ; Resing, Joseph A. ; Cullen, Jay ; Campbell, Robert W.

Crusius, John ; Schroth, Andrew W. ; Resing, Joseph A. ; Cullen, Jay ; Campbell, Robert W. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

Phytoplankton growth in the Gulf of Alaska (GoA) is limited by iron (Fe), yet Fe sources are poorly constrained. We examine the temporal and spatial distributions of Fe, and its sources in the GoA, based ondata from three cruises carried out in 2010 from the Copper River (AK) mouth to beyond the shelf break. April data are the ﬁrst to describe late winter Fe behavior before surface water nitrate depletion began. Sediment resuspension during winter and spring storms generated high “total dissolvable Fe ”(TDFe) concentrations of ~1000 nmol kg /C01along the entire continental shelf, which decreased beyond the shelf break. In July, high TDFe concentrations were similar on the shelf, but more spatially variable, and driven by
Keywords:

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Atmospheric Science Environmental Chemistry General Environmental Science Global And Planetary Change
Source:

Global Biogeochemical Cycles, 31(6), 942-960
DOI:

https://doi.org/10.1002/2016GB005493
ISSN:

0886-6236;1944-9224;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
License:

https://creativecommons.org/publicdomain/zero/1.0/
Rights Information:

CC0 Public Domain
Rights Statement:

This article has been contributed to by US Government employees and their work is in the public domain in the USA.
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:756a54d8242ecf4597cfbf98bdd3a290ca6d958845e327a3aaa80e8a738e3c37
Download URL:

https://repository.library.noaa.gov/view/noaa/52932/noaa_52932_DS1.pdf
File Type:

[PDF-2.40 MB]

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