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Salinity response to atmospheric forcing of the Terra Nova Bay polynya, Antarctica

Published online by Cambridge University Press:  11 May 2021

Deborah A. Le Bel Open the ORCID record for Deborah A. Le Bel [Opens in a new window] ,
Christopher J. Zappa Open the ORCID record for Christopher J. Zappa [Opens in a new window] ,
Giorgio Budillon  and
Arnold L. Gordon Open the ORCID record for Arnold L. Gordon [Opens in a new window]
Deborah A. Le Bel
Affiliation:
Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, 10964, USA
Christopher J. Zappa*
Affiliation:
Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, 10964, USA
Giorgio Budillon
Affiliation:
Università degli Studi di Napoli Parthenope, Centro Direzionale, Isola C4 - 80143Naples, Italy
Arnold L. Gordon
Affiliation:
Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, 10964, USA
*
zappa@ldeo.columbia.edu
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Abstract

The density and salinity of High Salinity Shelf Water, a key component of Antarctic Bottom Water emanating from the Ross Sea, are intensified by brine rejection induced by ice formation within the Terra Nova Bay (TNB) polynya. Ocean mooring data from 2007, meteorological observations from automatic weather stations and a satellite-derived history of the opening of TNB polynya delineate variability in water column salinity linked to atmospheric forcing, with a period on the order of 10 days. Lagged correlation analysis indicates that on average salinity response lags the polynya opening by 2 days and the wind forcing by 5 days. We find stronger correlations of salinity with the wind during March through May and with the polynya open-water fraction during June through October, with decreasing lags in the latter period. A one-dimensional mixed-layer model incorporating thermodynamic ice formation captures the oscillations in salinity. A process study shows that the variability in the polynya open-water fraction governs the final salinity attained by the model as well as the salinity cycling. Variability in surface heat fluxes modulates that effect. Our work suggests that there is a more complex relationship between salinity, the polynya open-water fraction, and atmospheric forcing than previously suggested.

Keywords

High Salinity Shelf Waterocean-atmosphere interactionpolynyassalinity response
Type
Physical Sciences
Information
Antarctic Science , Volume 33 , Issue 3 , June 2021 , pp. 318 - 331
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Copyright
Copyright © Antarctic Science Ltd 2021

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References

Bromwich, D.H. & Kurtz, D.D. 1982. Experiences of Scott's Northern Party: evidence for a relationship between winter katabatic winds and the Terra Nova Bay polynya. Polar Record, 21, 137–146.CrossRefGoogle Scholar
Bromwich, D.H. & Kurtz, D.D. 1984. Katabatic wind forcing of the Terra Nova Bay polynya. Journal of Geophysical Research - Oceans, 89, 3561–3572.CrossRefGoogle Scholar
Budillon, G., Castagno, P., Aliani, S., Spezie, G. & Padman, L. 2011. Thermohaline variability and Antarctic Bottom Water formation at the Ross Sea shelf break. Deep-Sea Research I, 58, 1002–1018.CrossRefGoogle Scholar
Budillon, G., Pacciaroni, M., Cozzi, S., Rivaro, P., Catalano, G., Ianni, C. & Cantoni, C. 2003. An optimum multiparameter mixing analysis of the shelf waters in the Ross Sea, Antarctic. Science, 15, 105–118.CrossRefGoogle Scholar
Budillon, G. & Spezie, G. 2000. Thermohaline structure and variability in the Terra Nova Bay polynya, Ross Sea. Antarctic Science, 12, 493–508.CrossRefGoogle Scholar
Buffoni, G., Cappelletti, A. & Picco, P. 2002. An investigation of thermohaline circulation in Terra Nova Bay polynya. Antarctic Science, 14, 83–92.CrossRefGoogle Scholar
Cappelletti, A., Picco, P. & Peluso, T. 2010. Upper ocean layer dynamics and response to atmospheric forcing in the Terra Nova Bay polynya, Antarctica. Antarctic Science, 22, 319–329.CrossRefGoogle Scholar
Cassano, J.J., Maslanik, J.A., Zappa, C.J., Gordon, A.L., Cullather, R.I. & Knuth, S.L. 2010. Wintertime observations of an Antarctic polynya with unmanned aircraft systems. Eos, 91, 245–246.CrossRefGoogle Scholar
Castagno, P., Capozzi, V., DiTullio, G.R., Falco, P., Fusco, G., Rintoul, S.R., et al. 2019. Rebound of shelf water salinity in the Ross Sea. Nature Communications, 10, 5441.CrossRefGoogle ScholarPubMed
Castagno, P., Falco, P., Dinniman, M.S., Spezie, G. & Budillon, G. 2017. Temporal variability of the Circumpolar Deep Water inflow onto the Ross Sea continental shelf. Journal of Marine Systems, 166, 37–49.CrossRefGoogle Scholar
Ciappa, A., Pietranera, L. & Budillon, G. 2012. Observations of the Terra Nova Bay (Antarctica) polynya by MODIS ice surface temperature imagery from 2005 to 2010. Remote Sensing of Environment, 119, 158–172.CrossRefGoogle Scholar
Comiso, J.C., Kwok, R., Martin, S. & Gordon, A. 2011. Variability and trends in sea ice extent and ice production in the Ross Sea. Journal of Geophysical Research - Oceans, 116, C04021.CrossRefGoogle Scholar
Drucker, R., Martin, S. & Kwok, R. 2011. Sea ice production and export from coastal polynyas in the Weddell and Ross Seas. Geophysical Research Letters, 38, L17502.CrossRefGoogle Scholar
Fusco, G., Budillon, G. & Spezie, G. 2009. Surface heat fluxes and thermohaline variability in the Ross Sea and in Terra Nova Bay polynya. Continental Shelf Research, 29, 1887–1895.CrossRefGoogle Scholar
Gordon, A.L., Huber, B.A. & Busecke, J. 2015. Bottom water export from the western Ross Sea, 2007 through 2010. Geophysical Research Letters, 42, 5387–5394.CrossRefGoogle Scholar
Gordon, A.L., Orsi, A.H., Muench, R., Huber, B.A., Zambianchi, E. & Visbeck, M. 2009. Western Ross Sea continental slope gravity currents. Deep-Sea Research II, 56, 796–817.CrossRefGoogle Scholar
Heygster, G., Weibe, H., Spreen, G. & Kaleschke, L. 2009. AMSR-E geolocation and validation of sea ice concentrations based on 89 GHz data. Journal of the Remote Sensing Society of the Japan, 29, 226–235.Google Scholar
Jacobs, S.S. 2004. Bottom water production and its links with the thermohaline circulation. Antarctic Science, 16, 427–437.CrossRefGoogle Scholar
Jacobs, S.S. & Giulivi, C.F. 2010. Large multidecadal salinity trends near the Pacific-Antarctic continental margin. Journal of Climate, 23, 4508–4524.CrossRefGoogle Scholar
Jacobs, S.S., Giulivi, C.F. & Mele, P.A. 2002. Freshening of the Ross Sea during the late 20th century. Science, 297, 386–389.CrossRefGoogle ScholarPubMed
Kern, S. 2009. Wintertime Antarctic coastal polynya area: 1992–2008. Geophysical Research Letters, 36, L14501.CrossRefGoogle Scholar
Kern, S. & Aliani, S. 2011. A comparison between polynya area and associated ice production with mooring-based measurements of temperature, salinity and currents in the southwestern Ross Sea, Antarctica. Annals of Glaciology, 52, 291–300.CrossRefGoogle Scholar
Kern, S., Spreen, G., Kaleschke, L., De La Rosa, S. & Heygster, G. 2007. Polynya Signature Simulation Method polynya area in comparison to AMSR-E 89 GHz sea-ice concentrations in the Ross Sea and off the Adélie Coast, Antarctica, for 2002–05: first results. Annals of Glaciology, 46, 409–418.CrossRefGoogle Scholar
Kurtz, D. & Bromwich, D. 1985. A recurring, atmospherically forced polynya in Terra Nova Bay. Antarctic Research Series, 43, 177–201.CrossRefGoogle Scholar
Kwok, R.C., Comiso, J.C., Martin, S. & Drucker, R. 2007. Ross Sea polynyas: response of ice concentration retrievals to large areas of thin ice. Journal of Geophysical Research - Oceans, 112, C12012.CrossRefGoogle Scholar
Martin, S., Drucker, R., Kwok, R. & Holt, B. 2004. Estimation of the thin ice thickness and heat flux for the Chukchi Sea Alaskan coast polynya from Special Sensor Microwave/Imager data, 1990–2001. Journal of Geophysical Research - Oceans, 109, C10012.CrossRefGoogle Scholar
Martin, S., Drucker, R., Kwok, R. & Holt, B. 2005. Improvements in the estimates of ice thickness in the Chukchi Sea polynyas derived from AMSR-E. Geophysical Research Letters, 32, L05505.CrossRefGoogle Scholar
Martin, S., Drucker, R.S. & Kwok, R. 2007. The areas and ice production of the western and central Ross Sea polynyas, 1992–2002, and their relation to the B-15 and C-19 iceberg events of 2000 and 2002. Journal of Marine Systems, 68, 201–214.CrossRefGoogle Scholar
Martin, S. & Kauffman, P. 1981. A field and laboratory study of wave damping by grease ice. Journal of Glaciology, 27, 283–313.CrossRefGoogle Scholar
Orsi, A.H. & Wiederwohl, C.L. 2009. A recount of Ross Sea waters. Deep-Sea Research II, 56, 778–795.CrossRefGoogle Scholar
Ou, H.W. 1988. A time-dependent model of a coastal polynya. Journal of Physical Oceanography, 18, 584–590.2.0.CO;2>CrossRefGoogle Scholar
Pease, C.H. 1987. The size of wind-driven coastal polynyas. Journal of Geophysical Research - Oceans, 92, 7049–7059.CrossRefGoogle Scholar
Price, J.F., Weller, R.A. & Pinkel, R. 1986. Diurnal cycling: observations and models of the upper ocean response to diurnal heating, cooling, and wind mixing. Journal of Geophysical Research - Oceans, 91, 8411–8427.CrossRefGoogle Scholar
Purkey, S.G. & Johnson, G.C. 2013. Antarctic Bottom Water warming and freshening: contributions to sea level rise, ocean freshwater budgets, and global heat gain. Journal of Climate, 26, 6105–6122.CrossRefGoogle Scholar
Rusciano, E., Budillon, G., Fusco, G. & Spezie, G. 2013. Evidence of atmosphere-sea ice-ocean coupling in the Terra Nova Bay polynya (Ross Sea - Antarctica). Continental Shelf Research, 61–62, 122–124.Google Scholar
Sansiviero, M., Morales Maqueda, M.Á., Fusco, G., Aulicino, G., Flocco, D. & Budillon, G. 2017. Modelling sea ice formation in the Terra Nova Bay polynya. Journal of Marine Systems, 166, 4–25.CrossRefGoogle Scholar
Spreen, G., Kaleschke, L. & Heygster, G. 2005. Operational sea ice remote sensing with AMSR-E 89 GHz channels. In Proceedings of the 2005 IEEE International Geoscience and Remote Sensing Symposium. New York, NY, USA: IEEE, 4033–4036.Google Scholar
Spreen, G., Kaleschke, L. & Heygster, G. 2008. Sea ice remote sensing using AMSR-E 89 GHz channels. Journal of Geophysical Research - Oceans, 113, C02S03.CrossRefGoogle Scholar
Tamura, T., Kay, I. Ohshima, K.I., Fraser, A.D.F. & Williams, G.D. 2016. Sea ice production variability in Antarctic coastal polynyas. Journal of Geophysical Research - Oceans, 121, 2967–2979.CrossRefGoogle Scholar
Van Woert, M.L. 1999. Wintertime expansion and contraction of the Terra Nova Bay Polynya. In Spezie, G. & Manzella, G.R.M. eds. Oceanography of the Ross Sea Antarctica. Milan: Springer-Verlag Italia, 145–161.CrossRefGoogle Scholar