[논문]Grounding and calving cycle of Mertz Ice Tongue revealed by shallow Mertz Bank

Wang, Xianwei; Holland, David M.; Cheng, Xiao; Gong, Peng

doi:10.5194/tc-10-2043-2016

Grounding and calving cycle of Mertz Ice Tongue revealed by shallow Mertz Bank 원문보기

The cryosphere, v.10 no.5, 2016년, pp.2043 - 2056

Wang, Xianwei , Holland, David M. , Cheng, Xiao , Gong, Peng

Abstract ▼ AI-Helper

Abstract. A recent study, using remote sensing, provided evidence that a seafloor shoal influenced the 2010 calving event of the Mertz Ice Tongue (MIT), by partially grounding the MIT several years earlier. In this paper, we start by proposing a method to calculate firn air content (FAC) around Mertz from seafloor-touching icebergs. Our calculations indicate the FAC around Mertz region as 4.87 ± 1.31 m. We then design an indirect method of using freeboard and sea surface height data extracted from ICESat/GLAS, FAC, and relatively accurate seafloor topography to detect grounding sections of the MIT between 2002 and 2008 and analyze the process of grounding prior to the calving event. By synthesizing remote sensing data, we point out that the grounding position was localized northeast of the Mertz ice front close to the Mertz Bank. The grounding outlines of the tongue caused by the Mertz Bank are extracted as well. From 2002 to 2008, the grounding area increased and the grounding became more pronounced. Additionally, the ice tongue could not effectively climb over the Mertz Bank in following the upstream ice flow direction and that is why MIT rotated clockwise after late 2002. Furthermore, we demonstrate that the area-increasing trend of the MIT changed little after calving (∼ 36 km2 a−1), thus allowing us to use remote sensing to estimate the elapsed time until the MIT can reground on and be bent by the shoal. This period is approximately 70 years. Our observations suggest that the calving of the MIT is a cyclical process controlled by the presence of the shallow Mertz Bank location and the flow rate of the tongue. This calving cycle also explains the cyclic variations in sea-surface conditions around the Mertz detected by earlier studies.

참고문헌 (44)

10.1029/2005GL024028 Abshire, J. B., Sun, X., Riris, H., Sirota, J. M., McGarry, J. F., Palm, S., Yi, D., and Liiva, P.: Geoscience laser altimeter system (GLAS) on the ICESat mission: On-orbit measurement performance, Geophys. Res. Lett., 32, L21S02, https://doi.org/10.1029/2005GL024028, 2005.

상세보기
BAS (British Antarctic Survey): Bedmap-2 data, available at: https://secure.antarctica.ac.uk/data/bedmap2/, last access: August 2016.
10.1016/S0967-0645(03)00071-7 Beaman, R. J. and Harris, P. T.: Seafloor morphology and acoustic facies of the George V Land shelf, Deep-Sea Res. Pt. II, 50, 1343-1355, 2003.

상세보기
10.1017/S095410201000074X Beaman, R. J., O'Brien, P. E., Post, A. L., and De Santis, L.: A new high-resolution bathymetry model for the Terre Adelie and George V continental margin, East Antarctica, Antarct. Sci., 23, 95-103, 2011.

상세보기
10.3189/172756503781830377 Berthier, E., Raup, B., and Scambos, T.: New velocity map and mass-balance estimate of Mertz Glacier, East Antarctica, derived from Landsat sequential imagery, J. Glaciol., 49, 503-511, 2003.

상세보기
10.1038/ncomms7642 Campagne, P., Crosta, X., Houssais, M. N., Swingedouw, D., Schmidt, S., Martin, A., Devred, E., Capo, S., Marieu, V., Closset, I., and Masse, G.: Glacial ice and atmospheric forcing on the Mertz Glacier Polynya over the past 250 years, Nature Communications, 6, 6642, https://doi.org/10.1038/ncomms7642, 2015.

상세보기
10.1038/nature12567 Depoorter, M. A., Bamber, J. L., Griggs, J. A., Lenaerts, J. T. M., Ligtenberg, S. R. M., van den Broeke, M. R., and Moholdt, G.: Calving fluxes and basal melt rates of Antarctic ice shelves, Nature, 502, 89-92, 2013.

상세보기
10.1038/nature03908 Domack, E., Duran, D., Leventer, A., Ishman, S., Doane, S., McCallum, S., Amblas, D., Ring, J., Gilbert, R., and Prentice, M.: Stability of the Larsen B ice shelf on the Antarctic Peninsula during the Holocene epoch, Nature, 436, 681-685, 2005.

상세보기
10.5194/tc-7-375-2013 Fretwell, P., Pritchard, H. D., Vaughan, D. G., et al.: Bedmap2: improved ice bed, surface and thickness datasets for Antarctica, The Cryosphere, 7, 375-393, https://doi.org/10.5194/tc-7-375-2013, 2013.

상세보기
10.3189/1998AoG27-1-643-650 Frezzotti, M., Cimbelli, A., and Ferrigno, J. G.: Ice-front change and iceberg behaviour along Oates and George V Coasts, Antarctica, 1912-96, Ann. Glaciol., 27, 643-650, 1998.
10.1029/2011GL047245 Holland, P. R., Corr, H. F., Pritchard, H. D., Vaughan, D. G., Arthern, R. J., Jenkins, A., and Tedesco, M.: The air content of Larsen ice shelf, Geophys. Res. Lett., 38, L10503, https://doi.org/10.1029/2011GL047245, 2011.

상세보기
10.1038/ncomms1156 Kusahara, K., Hasumi, H., and Williams, G. D.: Impact of the Mertz Glacier Tongue calving on dense water formation and export, Nature communications, 2, 159, https://doi.org/10.1038/ncomms1156, 2011.

상세보기
10.1029/2006JC003978 Kwok, R. Cunningham, G. F., Zwally, H. J., and Yi, D.: Ice, Cloud, and land Elevation Satellite (ICESat) over Arctic sea ice: retrieval of freeboard, J. Geophys. Res., 112, C12013, https://doi.org/10.1029/2006JC003978, 2007.

상세보기
10.3189/172756504781829828 Legresy, B., Wendt, A., Tabacco, I. E., Remy, F., and Dietrich, R.: Influence of tides and tidal current on Mertz Glacier, Antarctica, J. Glaciol., 50, 427-435, 2004.

상세보기
Legresy, B., Young, N., Lescarmontier, L., Coleman, R., Massom, R., Giles, B., Fraser, A., Warener, R., Galton-Fenzi, B., Testut, L., Houssais, M., and Masse, G.: CRAC!!! in the Mertz Glacier, Antarctica, Antarctic Climate & Ecosystems Cooperative Research Center, Private Bag 80, Hobart, Tasmania, Australia, available at: http://www.antarctica.gov.au/__data/assets/pdf_file/0004/22549/ml_402353967939815_mertz_final_100226.pdf, last access: December 2010.
10.3189/2012JoG11J089 Lescarmontier, L., Legresy, B., Coleman, R., Perosanz, F., Mayet, C., and Testut, L.: Vibrations of Mertz glacier ice tongue, East Antarctica, J. Glaciol., 58, 665-676, 2012.

상세보기
10.5194/tc-8-1711-2014 Ligtenberg, S. R. M., Kuipers Munneke, P., and van den Broeke, M. R.: Present and future variations in Antarctic firn air content, The Cryosphere, 8, 1711-1723, https://doi.org/10.5194/tc-8-1711-2014, 2014.

상세보기
10.1017/S0954102003001299 Massom, R. A.: Recent iceberg calving events in the Ninnis Glacier region, East Antarctica, Antarct. Sci., 15, 303-313, 2003.

상세보기
10.1029/2009JC006083 Massom, R. A., Giles, A. B., Fricker, H. A., Warner, R. C., Legresy, B., Hyland, G., Young, N., and Fraser, A. D.: Examining the interaction between multi-year landfast sea ice and the Mertz Glacier Tongue, East Antarctica: Another factor in ice sheet stability?, J. Geophys. Res., 115, C12027, https://doi.org/10.1029/2009JC006083, 2010.

상세보기
10.1002/2014JF003223 Massom, R. A., Giles, A. B., Warner, R. C., Fricker, H. A., Legresy, B., Hyland, G., Lescarmontier, L., and Young, N.: External influences on the Mertz Glacier Tongue (East Antarctica) in the decade leading up to its calving in 2010, J. Geophys. Res.-Earth, 120, 490-506, 2015.

상세보기
NGA: EGM2008 (Earth Gravitational Model 2008): available at: http://earth-info.nga.mil/GandG/wgs84/gravitymod/egm2008/egm08_gis.html, last access: August 2016.
NSIDC (National Snow and Ice Data Center): ICESat/GLAS data, available at: http://nsidc.org/data/order/icesat-glas-subsetter, last access: August 2016.
10.1029/2011JB008916 Pavlis, N. K., Holmes, S. A., Kenyon, S. C., and Factor, J. K.: The development and evaluation of the Earth Gravitational Model 2008 (EGM2008), J. Geophys. Res., 117, B04406, https://doi.org/10.1029/2011JB008916, 2012.

상세보기
10.1038/nature10968 Pritchard, H. D., Ligtenberg, S. R. M., Fricker, H. A., Vaughan, D. G., Van den Broeke, M. R., and Padman, L.: Antarctic ice-sheet loss driven by basal melting of ice shelves, Nature, 484, 502-505, 2012.

상세보기
10.1126/science.1070942 Rignot, E. and Jacobs, S. S.: Rapid bottom melting widespread near Antarctic ice sheet grounding lines, Science, 296, 2020-2023, 2002.

상세보기
10.1126/science.1208336 Rignot, E., Mouginot, J., and Scheuchl, B.: Ice flow of the Antarctic ice sheet, Science, 333, 1427-1430, 2011.

상세보기
Scambos, T., Bohlander, J., and Raup, B.: Images of Antarctic Ice Shelves, National Snow and Ice Data Center, Boulder, Colorado, USA, https://doi.org/10.7265/N5NC5Z4N, last access: August 2016, 1996.
10.3189/172756500781833043 Scambos, T., Hulbe, C., Fahnestock, M. A., and Bohlander, J.: The link between climate warming and breakup of ice shelves in the Antarctic Peninsula, J. Glaciol., 46, 516-530, 2000.

상세보기
10.1029/AR079p0079 Scambos, T., Hulbe, C., and Fahnestock, M. A.: Climate-induced ice shelf disintegration in the Antarctic Peninsula, Antar. Res. S., 79, 79-92, 2003.
10.1126/science.1089768 Shepherd, A., Wingham, D., Payne, T., and Skvarca, P.: Larsen Ice Shelf has progressively thinned, Science, 302, 856-859, 2003.

상세보기
10.1029/2005GL025227 Shuman, C. A., Zwally, H. J., Schutz, B. E., Brenner, A. C., DiMarzio, J. P., Suchdeo, V. P., and Fricker, H. A.: ICESat Antarctic elevation data: Preliminary precision and accuracy assessment, Geophys. Res. Lett., 33, L07501, https://doi.org/10.1029/2005GL025227, 2006.

상세보기
10.1016/j.dsr2.2010.11.003 Smith, K. L.: Free-drifting icebergs in the Southern Ocean: an overview, Deep-Sea Res. Pt. II, 58, 1277-1284, 2011.

상세보기
10.1126/science.1142834 Smith, K. L., Robison, B. H., Helly, J. J., Kaufmann, R. S., Ruhl, H. A., Shaw, T. J., Twining, B. S., and Vernet, M.: Free-drifting icebergs: hot spots of chemical and biological enrichment in the Weddell Sea, Science, 317, 478-482, 2007.

상세보기
10.1038/ncomms1820 Tamura, T., Williams, G. D., Fraser, A. D., and Ohshima, K. I.: Potential regime shift in decreased sea ice production after the Mertz Glacier calving, Nature communications, 3, 826, https://doi.org/10.1038/ncomms1820, 2012.

상세보기
USGS (United States Geological Survey): Landsat data, available at: http://glovis.usgs.gov/, last access: August 2016.
10.1657/1523-0430(07-021)[BROEKE]2.0.CO;2 Van Den Broeke, M.: Depth and density of the Antarctic firn layer, Arct. Antarct. Alp. Res., 40, 432-438, 2008.

상세보기
Wang, X. W.: Researches on evolution of the Mertz ice tongue from satellite observation data, Postdoctoral Research Report, College of Global Change and Earth System Science, Beijing Normal University, China, available at: https://www.researchgate.net/publication/274370933_Researches_on_evolution_of_the_Mertz_ice_tongue_from_satellite_observation_data, last access: August 2016, 2014.
10.1080/01431161.2010.547533 Wang, X. W., Cheng, X., Gong, P., Huang, H. B., Li, Z., and Li, X. W.: Earth Science Applications of ICESat/GLAS: a Review, Int. J. Remote Sens., 32, 8837-8864, https://doi.org/10.1080/01431161.2010.547533, 2011.

상세보기
10.1109/LGRS.2011.2167495 Wang, X. W., Cheng, X., Li, Z., Huang, H., Niu, Z., Li, X., and Gong, P.: Lake water footprint identification from time-series ICESat/GLAS data, IEEE Geosci. Remote S., 9, 333-337, 2012.

상세보기
10.1016/j.rse.2013.01.005 Wang, X. W., Gong, P., Zhao, Y., Xu, Y., Cheng, X., Niu, Z., Luoe, Z., Huanga, H., Sun, F., and Li, X.: Water-level changes in China's large lakes determined from ICESat/GLAS data, Remote Sens. Environ., 132, 131-144, 2013.

상세보기
10.1016/j.rse.2014.01.002 Wang, X. W., Cheng, X., Gong, P., Shum, C. K., Holland, D. M., and Li, X. W.: Freeboard and mass extraction of the disintegrated Mertz Ice Tongue with remote sensing and altimetry data, Remote Sens. Environ., 144, 1-10, 2014.

상세보기
10.3189/172756411795931480 Yi, D., Zwally, H. J., and Robbins, J.: ICESat observations of seasonal and interannual variations of sea-ice freeboard and estimated thickness in the Weddell Sea, Antarctica (2003-2009), Ann. Glaciol., 52, 43-51, 2011.

상세보기
10.1016/S0264-3707(02)00042-X Zwally, H. J., Schutz, B., Abdalati, W., Abshire, J., Bentley, C., Brenner, A., Bufton, J., Dezio, J., Hancock, D., Harding, D., Herring, T., Minster, B., Quinn, K., Palm, S., Spinhirne, J., and Thomas, R.: ICESat's laser measurements of polar ice, atmosphere, ocean, and land, J. Geodyn., 34, 405-445, 2002.

상세보기
10.1029/2007JC004284 Zwally, H. J., Yi, D., Kwok, R., and Zhao, Y.: ICESat measurements of sea ice freeboard and estimates of sea ice thickness in the Weddell Sea, J. Geophys. Res., 113, C02S15, https://doi.org/10.1029/2007JC004284, 2008.

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Grounding and calving cycle of Mertz Ice Tongue revealed by shallow Mertz Bank 원문보기

Abstract ▼ AI-Helper

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