Dust contributes an important flux of iron to Gulf of Alaska surface waters beyond the shelf break, while shelf sediments and glacial meltwater drive Fe supply over the northern Gulf of Alaska shelf

John Crusius, USGS at UW School of Oceanography, Seattle, WA, United States, Andrew W. Schroth, University of Vermont, Geography and Geosciences, Burlington, United States, Joseph Resing, University of Washington, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, Seattle, United States, Jay T. Cullen, University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada and Robert W Campbell, Prince William Sound Science Center, Cordova, AK, United States