Preprints
https://doi.org/10.5194/tc-2020-339
© Author(s) 2020. 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-2020-339
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
17 Dec 2020
17 Dec 2020
Review status: a revised version of this preprint was accepted for the journal TC and is expected to appear here in due course.
Comment on Exceptionally high heat flux needed to sustain the
Northeast Greenland Ice Stream
by S. Smith-Johnson et al., The
Cryosphere, 14, 841–854, 2020
- 1China University of Geosciences, Beijing, China
- 2Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
- 3Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- 4Geosciences Barcelona, CSIC, Barcelona, Spain
- 1China University of Geosciences, Beijing, China
- 2Department of Geosciences, Eberhard Karls University Tübingen, Tübingen, Germany
- 3Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- 4Geosciences Barcelona, CSIC, Barcelona, Spain
Abstract. Smith-Johnson et al. (The Cryosphere, 14, 841–854, 2020) model the effect of a potential hotspot on the Northeast Greenland Ice Stream (NEGIS). They argue that a heat flux of at least 970 mW m−2 is required to have initiated or control NEGIS. Such an exceptionally high heat flux would be unique in the world and is incompatible with known geological processes that can raise the heat flux. NEGIS is thus formed and controlled by some other, yet unknown, process.
How to cite. Bons, P. D., de Riese, T., Franke, S., Llorens, M.-G., Sachau, T., Stoll, N., Weikusat, I., and Zhang, Y.: Comment on
Exceptionally high heat flux needed to sustain the Northeast Greenland Ice Streamby S. Smith-Johnson et al., The Cryosphere, 14, 841–854, 2020, The Cryosphere Discuss. [preprint], https://doi.org/10.5194/tc-2020-339, in review, 2020.
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Paul D. Bons et al.
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
RC1: 'Referee Comment -- Comment on "Exceptionally high heat flux needed to sustain the Northeast Greenland Ice Stream" by S. Smith-Johnson et al., The Cryosphere, 14, 841–854, 2020', Nicholas Holschuh, 16 Jan 2021
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AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
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AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
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AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
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SC1: 'Comment on tc-2020-339', Silje Smith-Johnsen, 26 Jan 2021
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AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
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AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
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AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
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RC2: 'Review of the comment by Bons et al on "Exceptionally high heat flux ..." by S. Smith-Johnson et al.', Jörg Ebbing, 29 Jan 2021
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AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
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AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
- Printer-friendly version
- Supplement
-
RC1: 'Referee Comment -- Comment on "Exceptionally high heat flux needed to sustain the Northeast Greenland Ice Stream" by S. Smith-Johnson et al., The Cryosphere, 14, 841–854, 2020', Nicholas Holschuh, 16 Jan 2021
-
AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
-
SC1: 'Comment on tc-2020-339', Silje Smith-Johnsen, 26 Jan 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
RC2: 'Review of the comment by Bons et al on "Exceptionally high heat flux ..." by S. Smith-Johnson et al.', Jörg Ebbing, 29 Jan 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
AC2: 'Reply on RC1, RC2, SC1', Paul D. Bons, 28 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
-
AC1: 'Comment on tc-2020-339', Paul D. Bons, 06 Feb 2021
Paul D. Bons et al.
Paul D. Bons et al.
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Short summary
Smith-Johnson et al. (The Cryosphere, 14, 841–854, 2020) argue that a very large heat flux of more than ten times the usual geothermal heat flux is required to have initiated or control the huge Northeast Greenland Ice Stream. Our comparison with known hotspots, such as Iceland and Yellowstone, shows that such an exceptional heat flux would be unique in the world and is incompatible with known geological processes that can raise the heat flux.
Smith-Johnson et al. (The Cryosphere, 14, 841–854, 2020) argue that a very large heat flux of...