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Contrasting glacier variations of Glaciar Perito Moreno and Glaciar Ameghino, Southern Patagonia Icefield

  • Masahiro Minowa (a1) (a2), Shin Sugiyama (a1), Daiki Sakakibara (a1) (a2) and Takanobu Sawagaki (a3)
Abstract
Abstract

Glaciar Perito Moreno (GPM) and Glaciar Ameghino (GA), Southern Patagonia Icefield, are in contact in the accumulation area, but have shown contrasting frontal variations in the past few decades. To investigate recent changes of the two glaciers and processes controlling the different responses to similar climate conditions, we measured surface elevation change from 2000 to 2008 and terminus positions from 1999 to 2012 using several types of satellite data. GPM shows no significant changes in terminus position and 0.4 ± 0.3 m a–1 thickening over the period, whereas GA retreated 55 ± 2 m a–1 and thinned 2.6 ± 0.3 m a–1. Mass-balance measurements over the period 1999/2000 show that accumulation at GPM was ten times greater than that at GA, but ablation was only three times greater. The mass-balance–altitude profile is similar for the two glaciers; differences in the mass-balance distribution are caused by differences in the accumulation–area ratio (AAR). Our results suggest that the AAR and the calving flux exert strong control on the evolution of glaciers in the region.

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Corresponding author
Correspondence: Masahiro Minowa <m_masa@lowtem.hokudai.ac.jp>
References
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AniyaM (1999) Recent glacier variations of the Hielo Patagónicos, South America, and their contribution to sea-level change. Arct. Antarct. Alp. Res., 31 (2), 165173
AniyaM and SatoH (1995) Morphology of Ameghino Glacier and landforms of Ameghino Valley, southern Patagonia. Bull. Glacier Res., 13, 6982
AniyaM, SatoH, NaruseR, SkvarcaP and CasassaG (1997) Recent glacier variations in the Southern Patagonia Icefield, South America. Arct. Alp. Res., 29 (1), 112
BartholomausTC, LarsenCF and O’NeelS (2013) Does calving matter? Evidence for significant submarine melt. Earth Planet. Sci. Lett., 380, 2130 (doi: 10.1016/j.epsl.2013.08.014)
BennDI, WarrenCW and MottramRH (2007) Calving processes and the dynamics of calving glaciers. Earth-Sci. Rev., 82(3–4), 143179 (doi: 10.1016/j.earscirev.2007.02.002)
CogleyJG and 10 others. (2011) Glossary of glacier mass balance and related terms. (IHP-VII Technical Documents in Hydrology 86) UNESCO–International Hydrological Programme, Paris
CuffeyKM and PatersonWSB (2010) The physics of glaciers, 4th edn. Butterworth-Heinemann, Oxford
DaviesBJ and GlasserNF (2012) Accelerating shrinkage of Patagonian glaciers from the Little Ice Age (~AD 1870) to 2011. J. Glaciol., 58 (212), 10631084 (doi: 10.3189/2012JoG12J026)
De AngelisH (2014) Hypsometry and sensitivity of the mass balance to changes in equilibrium-line altitude: the case of the Southern Patagonia Icefield. J. Glaciol., 60 (219), 1428 (doi: 10.3189/2014JoG13J127)
FarrTG and 17 others (2007) The Shuttle Radar Topography Mission. Rev. Geophys., 45 (2), RG2004 (doi: 10.1029/2005RG000183)
FloricioiuD, EinederM, RottH and NaglerT (2008) Velocities of major outlet glaciers of the Patagonia Icefield observed by TerraSAR-X. In Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS 2008), 7–11 July 2008, Boston, MA, USA, Vol. 4. Institute of Electrical and Electronics Engineers, Piscataway, NJ, 347350
HowatIM, JoughinIR and ScambosTA (2007) Rapid changes in ice discharge from Greenland outlet glaciers. Science, 315 (5818), 15591561 (doi: 10.1126/science.1138478)
JoughinI, AbdalatiW and FahnestockMA (2004) Large fluctuations in speed on Greenland’s Jakobshavn Isbræ glacier. Nature, 432 (7017), 608610 (doi: 10.1038/nature03130)
LamsalD, SawagakiT and WatanabeT (2011) Digital terrain modelling using Corona and ALOS PRISM data to investigate the distal part of Imja Glacier, Khumbu Himal, Nepal. J. Mt. Sci. [China], 8 (3), 390402 (doi: 10.1007/s11629-011-2064-0) [in Chinese]
LopezP, ChevallierP, FavierV, PouyaudB, OrdenesF and OerlemansJ (2010) A regional view of fluctuations in glacier length in southern South America. Global Planet. Change, 71(1–2), 85108 (doi: 10.1016/j.gloplacha.2009.12.009)
MasiokasM, RiveraA, EspizuaLE, VillalbaR, DelgadoS and AravenaJC (2009) Glacier fluctuations in extratropical South America during the past 1000 years. Palaeogeogr., Palaeoclimatol., Palaeoecol., 281(3–4), 242268 (doi: 10.1016/j.palaeo. 2009.08.006)
MeierMF and PostA (1987) Fast tidewater glaciers. J. Geophys. Res., 92 (B9), 90519058 (doi: 10.1029/JB092iB09p09051)
MoonT and JoughinI (2008) Changes in ice front position on Greenland’s outlet glaciers from 1992 to 2007. J. Geophys. Res., 113 (F2), F02022 (doi: 10.1029/2007JF000927)
MotykaRJ, HunterL, EchelmeyerKA and ConnorC (2003) Submarine melting at the terminus of a temperate tidewater glacier, LeConte Glacier, Alaska, U.S.A. Ann. Glaciol., 36, 5765 (doi: 10.3189/172756403781816374)
MutoM and FuruyaM (2013) Surface velocities and ice-front positions of eight major glaciers in the Southern Patagonian Ice Field, South America, from 2002 to 2011. Remote Sens. Environ., 139, 5059 (doi: 10.1016/j.rse.2013.07.034)
NaruseR, AniyaM, SkvarcaP and CasassaG (1995) Recent variations of calving glaciers in Patagonia, South America, revealed by ground surveys, satellite-data analyses and numerical experiments. Ann. Glaciol., 21, 297303
NicholsRL and MillerMM (1952) The Moreno Glacier, Lago Argentino, Patagonia: advancing glaciers and nearby simultaneously retreating glaciers. J. Glaciol., 2 (11), 4150/39
NickFM, VieliA, HowatIM and JoughinI (2009) Large-scale changes in Greenland outlet glacier dynamics triggered at the terminus. Nature Geosci., 2 (2), 110114 (doi: 10.1038/ngeo394)
PasquiniAI and DepetrisPJ (2011) Southern Patagonia’s Perito Moreno Glacier, Lake Argentino, and Santa Cruz River hydrological system: an overview. J. Hydrol., 405(1–2), 4856 (doi: 10.1016/j.jhydrol.2011.05.009)
PostA, O’NeelS, MotykaRJ and StrevelerG (2011) A complex relationship between calving glaciers and climate. Eos, 97 (37), 305306 (doi: 10.1029/2011EO370001)
RasmussenLA, ConwayH and RaymondCF (2007) Influence of upper air conditions on the Patagonia icefields. Global Planet. Change, 59(1–4), 203216 (doi: 10.1016/j.gloplacha. 2006.11.025)
RignotE, RiveraA and CasassaG (2003) Contribution of the Patagonian icefields of South America to sea level rise. Science, 302 (5644), 434437 (doi: 10.1126/science.1087393)
RignotE, KoppesM and VelicognaI (2010) Rapid submarine melting of the calving faces of West Greenland glaciers. Nature Geosci., 3 (3), 187191 (doi: 10.1038/ngeo765)
RiveraA, BenhamT, CasassaG, BamberJ and DowdeswellJA (2007) Ice elevation and areal changes of glaciers from the Northern Patagonia Icefield, Chile. Global Planet. Change, 59(1–4), 126137 (doi: 10.1016/j.gloplacha.2006.11.037)
RiveraA, KoppesM, BravoC and AravenaJC (2012) Little Ice Age advance and retreat of Glaciar Jorge Montt, Chilean Patagonia. Climate Past, 8 (2), 403414 (doi: 10.5194/cp-8-403-2012)
RottH, StueferM, NaglerT and RiedlC (2005) Recent fluctuations and damming of Glaciar Perito Moreno, Patagonia, observed by means of ERS and Envisat imagery. In Lacoste H and Ouwehand L eds Proceedings of the 2004 Envisat & ERS Symposium, 6–10 September 2004, Salzburg, Austria. ESA Publications, Noordwijk
SakakibaraD and SugiyamaS (2014) Ice-front variations and speed changes of calving glaciers in the Southern Patagonia Icefield from 1984 to 2011. J. Geophys. Res., 119 (11), 25412554 (doi: 10.1002/2014JF003148)
SakakibaraD, SugiyamaS, SawagakiT, MarinsekS and SkvarcaP (2013) Rapid retreat, acceleration and thinning of Glaciar Upsala, Southern Patagonia Icefield, initiated in 2008. Ann. Glaciol., 54 (63 Pt 1), 131138 (doi: 10.3189/2013AoG63A236)
SkvarcaP and NaruseR (1997) Dynamic behavior of Glaciar Perito Moreno, southern Patagonia. Ann. Glaciol., 24, 268271
SkvarcaP and NaruseR (2006) Erratum. Overview of the ice-dam formation and collapse of Glaciar Perito Moreno, southern Patagonia, in 2003/04. J. Glaciol., 178 (52), 476478 (doi: 10.3189/172756506781828539)
SkvarcaP, MarinsekS and AniyaM (2010) Documenting 23 years of areal loss of Hielo Patagónico Sur, recent climate data and potential impact on Río Santa Cruz water discharge. In Abstracts. International Glaciological Conference. Ice and Climate Change: A View from the South. Centro de Estudios Científicos, Valdivia, 82
StueferM, RottH and SkvarcaP (2007) Glaciar Perito Moreno, Patagonia: climate sensitivities and glacier characteristics preceding the 2003/04 and 2005/06 damming events. J. Glaciol., 53 (180), 316 (doi: 10.3189/172756507781833848)
SugiyamaS and 7 others (2011) Ice speed of a calving glacier modulated by small fluctuations in basal water pressure. Nature Geosci., 4 (9), 597600 (doi: 10.1038/ngeo1218)
Van der VeenCJ (1996) Tidewater calving. J. Glaciol., 42 (141), 375385
WarrenCR (1994) Freshwater calving and anomalous glacier oscillations: recent behaviour of Moreno and Ameghino Glaciers, Patagonia. Holocene, 4 (4), 422429 (doi: 10.1177/095968369400400410)
WarrenC and AniyaM (1999) The calving glaciers of southern South America. Global Planet. Change, 22(1–4), 5977
WillisMJ, MelkonianAK, PritchardME and RiveraA (2012) Ice loss from the Southern Patagonian Ice Field, South America, between 2000 and 2012. Geophys. Res. Lett., 39 (17), L17501 (doi: 10.1029/2012GL053136)
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Annals of Glaciology
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