Evolution of Ossoue Glacier (French Pyrenees) since the end of the Little Ice Age

Marti, Renaud; Gascoin, Simon; Houet, T.; Ribière, O.; Laffly, Dominique; Condom, Thomas; Monnier, Sébastien; Schmutz, M.; Camerlynck, Christian; Tihay, J. P.; Soubeyroux, Jean Michel; René, Pierre

doi:10.5194/tcd-9-2431-2015

Cited by 4 publications

(6 citation statements)

References 41 publications

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“…This precision was shown to be mostly correlated with slope. For the small Ossoue Glacier (French Pyrénées), the precision was slightly lower at 1.8 m (Marti et al, 2015). A similar vertical precision is expected here.…”

Section: Pléiades Dem Generationsupporting

confidence: 88%

“…Launched on 17 December 2011 and 2 December 2012 respectively, the Pléiades 1A and 1B satellites have recently shown their high potential for glacier DEM extraction and thus, for mass balance estimations (Wagnon et al, 2013;Berthier et al, 2014;Marti et al, 2015). The two satellites follow the same near-polar sun-synchronous orbit and provide panchromatic and multispectral imagery at a very high ground spatial resolution, 0.7 m for panchromatic and 2.8 m for multispectral images, respectively (Astrium, 2012).…”

Section: Pléiades Stereoscopic Imagesmentioning

confidence: 99%

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Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

et al. 2015

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Abstract. Grinnell and Terra Nivea Ice Caps are located on the southern Baffin Island, Nunavut, in the Canadian Arctic Archipelago. These relatively small ice caps have received little attention compared to the much larger ice masses further north. Their evolution can, however, give valuable information about the impact of the recent Arctic warming at lower latitudes (i.e. ~ 62.5° N). In this paper, we measure or estimate historical and recent changes of area, elevation and mass of both ice caps using in situ, airborne and spaceborne data sets, including imagery from the Pléiades satellites. The area of Terra Nivea Ice Cap has decreased by 34 % since the late 1950s, while that of Grinnell Ice Cap has decreased by 20 % since 1952. For both ice caps, the areal reduction accelerated at the beginning of the 21st century. The estimated glacier-wide mass balance was −0.37 ± 0.21 m a−1 water equivalent (w.e.) over Grinnell Ice Cap for the 1952–2014 period, and −0.47 ± 0.16 m a−1 w.e. over Terra Nivea Ice Cap for the 1958/59–2014 period. Terra Nivea Ice Cap has experienced an accelerated rate of mass loss of −1.77 ± 0.36 m a−1 w.e. between 2007 and 2014. This rate is 5.9 times as negative when compared to the 1958/59–2007 period (−0.30 ± 0.19 m a−1 w.e.) and 2 times as negative when compared to the mass balance of other glaciers in the southern parts of Baffin Island over the 2003–2009 period. A similar acceleration in mass loss is suspected for the Grinnell Ice Cap, given the calculated elevation changes and the proximity to Terra Nivea Ice Cap. The recent increase in mass loss rates for these two ice caps is linked to a strong near-surface regional warming and a lengthening of the melt season into the autumn that may be indirectly strengthened by a later freezing of sea ice in the Hudson Strait sector. On a methodological level, our study illustrates the strong potential of Pléiades satellite data to unlock the under-exploited archive of old aerial photographs.

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Section: Pléiades Dem Generationsupporting

confidence: 88%

Section: Pléiades Stereoscopic Imagesmentioning

confidence: 99%

Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

et al. 2015

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“…The retreating sea ice cover in Hudson Strait, immediately south of Meta Incognita Peninsula, has been accompanied by a particularly large rise in surface air temperature during autumn months (SON) during or after the sea ice cover minimum, and the rate of autumn warming between 1980 and 2010 (0.15 • C a −1 ) is estimated to have been three times greater than the mean between 1950 and 2010 (0.05 • C a −1 ; Hocheim and Barber, 2014). A consequence of the sea ice retreat in this sector has been to increase the net solar flux absorbed annually at the sea surface at an estimated average rate of ≥ 0.8 W m −2 a −1 over the period 1984-2006, and probably faster after the mid-1990s when sea ice decline accelerated (Matsoukas et al, 2010;Hocheim and Barber, 2014). Meanwhile, the temperature record from Iqaluit (Fig.…”

Section: Regional Context and Climatic Factorsmentioning

confidence: 97%

Section: Pléiades Stereoscopic Imagesmentioning

confidence: 99%

Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

Papasodoro¹,

Royer²,

Zdanowicz³

et al. 2015

Preprint

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Abstract. In the far south of the Canadian Arctic Archipelago (CAA), on the Meta Incognita Peninsula (Baffin Island, Nunavut, Canada), the small Grinnell and Terra Nivea ice caps have received little attention compared to the much larger ice masses further north. Their evolution can, however, give valuable information about the impact of the recent Arctic warming at lower latitudes (i.e. 62.5° N). In this paper, we measure historical and recent rates of area, elevation and mass changes of both ice caps using in-situ, airborne and spaceborne datasets. Results show that the Terra Nivea Ice Cap (TNIC) areal extent has decreased by 34% since the late 50s, while the Grinnell Ice Cap (GIC) extent was reduced by 20% since 1952. For both ice caps, rates of area reduction accelerated at the beginning of the 21st century. The glacier-wide mass balance for the GIC was −0.37 ± 0.21 m a−1 water equivalent (w.e.) for the 1952–2014 period, and −0.47 ± 0.16 m a−1 w.e. on the TNIC for the 1958/59–2014 period. More recently, the TNIC has experienced an accelerated rate of mass loss of −1.68 ± 0.36 m a−1 w.e. between 2007 and 2014. This rate is 5.6 times as negative when compared to the 1958/59–2007 period (−0.30 ± 0.19 m a−1 w.e.) and 2 times as negative when compared to the mass balance of other glaciers in the southern parts of Baffin Island over the 2003–2009 period. A similar acceleration in mass loss is suspected for the GIC, given the calculated elevation changes and the proximity.

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“…The annual losses in thickness reveal the imbalance of Pyrenean glaciers under current climatic conditions (Chueca et al, 2007; Del Rio et al, 2014; López‐Moreno et al, 2019; Moreno, 2016; Rene, 2013; Rico Lozano et al, 2014; Vidaller et al, 2021). Climate models estimate a temperature increase of over 1°C by 2050 (Amblar et al, 2017) and point to the disappearance of a large proportion of European glaciers by the middle of the 21st century, including those of the Pyrenees due to their small size, southern location, and unfavorable climatic factors, such as the decrease in snowfall and the increase in temperatures and summer radiation (Bonsoms et al, 2022; Del Rio et al, 2014; López‐Moreno et al, 2019; Marti et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

The final countdown? Monitoring the rapid shrinkage of the Maladeta glacier (2010–2020), Southern Pyrenees

Martínez‐Fernández,

Serrano,

de Sanjosé

et al. 2023

Land Degrad Dev

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Small glaciers are one of the best indicators of climatic variations and their short‐term effects. Located in the Spanish Pyrenees, the Maladeta is one of these glaciers. Its systematic observation began in the 1980s, being one of the few Pyrenean glaciers with a tongue‐shaped front. This study presents the evolution of the Maladeta glacial tongue over a decade (2010–2020) through multiple geomatic techniques. Surveys have ranged from Total Stations and Global Navigation Satellite System devices to massive data capture techniques such as Terrestrial Laser Scanners or Unmanned Aerial Vehicles photogrammetry. The aim is to analyze in detail the loss of surface area and thickness of the glacier and its transition from being a glacier with a tongue partially determined by climate to a topoclimatically determined cirque glacier. The results reveal a tongue retreat of over 5 m/yr and area losses of over 0.2 ha/yr, along with ice thickness and volume losses of −1.7 m/yr and over −21 × 103 m3/yr, respectively. If this trend continues, the tongue, and possibly the Maladeta glacier, could disappear by the end of the 2030s.

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Evolution of Ossoue Glacier (French Pyrenees) since the end of the Little Ice Age

Cited by 4 publications

References 41 publications

Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

Area, elevation and mass changes of the two southernmost ice caps of the Canadian Arctic Archipelago between 1952 and 2014

The final countdown? Monitoring the rapid shrinkage of the Maladeta glacier (2010–2020), Southern Pyrenees

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