Articles | Volume 13, issue 7
https://doi.org/10.5194/tc-13-1785-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-13-1785-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
08 Jul 2019
Research article |
| 08 Jul 2019
| 08 Jul 2019
Spatiotemporal distributions of icebergs in a temperate fjord: Columbia Fjord, Alaska
Sarah U. Neuhaus
CORRESPONDING AUTHOR
Earth and Planetary Sciences, University of California Santa Cruz,
Santa Cruz, CA 95064, USA
Slawek M. Tulaczyk
Earth and Planetary Sciences, University of California Santa Cruz,
Santa Cruz, CA 95064, USA
Carolyn Branecky Begeman
Earth and Planetary Sciences, University of California Santa Cruz,
Santa Cruz, CA 95064, USA
Los Alamos National Laboratory, Los Alamos, NM 87545, USA
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Here we compare and contrast results from five well-studied Arctic field sites in order to understand how glaciers affect marine biogeochemistry and marine primary production. The key questions are listed as follows. Where and when does glacial freshwater discharge promote or reduce marine primary production? How does spatio-temporal variability in glacial discharge affect marine primary production? And how far-reaching are the effects of glacial discharge on marine biogeochemistry?
Till J. W. Wagner, Fiamma Straneo, Clark G. Richards, Donald A. Slater, Laura A. Stevens, Sarah B. Das, and Hanumant Singh
The Cryosphere, 13, 911–925, https://doi.org/10.5194/tc-13-911-2019, https://doi.org/10.5194/tc-13-911-2019, 2019
Short summary
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This study shows how complex and varied the processes are that determine the frontal position of tidewater glaciers. Rather than uniform melt or calving rates, a single (medium-sized) glacier can feature regions that retreat almost exclusively due to melting and other regions that retreat only due to calving. This has far-reaching consequences for our understanding of how glaciers retreat or advance.
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Short summary
Relatively few studies have been carried out on icebergs inside fjords, despite the fact that the majority of recent sea level rise has resulted from glaciers terminating in fjords. We examine the size and spatial distribution of icebergs in Columbia Fjord, Alaska, over a period of 8 months to determine their influence on fjord dynamics.
Relatively few studies have been carried out on icebergs inside fjords, despite the fact that...
