Influencia de la radiación solar en el proceso de degradación y fragmentación post-pequeña Edad del Hielo del glaciar de la Madaleta (Pirineo Central Español)

Cía, Javier Chueca; Andrés, Asunción Julián

doi:10.18172/cig.1135

Cited by 4 publications

(4 citation statements)

References 10 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For 1957, 1983, and 2000, we estimated an ELA of 3081, 3089, and 3105 m a.s.l., respectively. These results are similar to the data reported in the Maladeta Glacier by Chueca and Julián (2004b) and Chueca et al (2005), who suggested ELAs of 3030, 3035, and 3095 m a.s.l. for the years 1957, 1981, and 1997–99, respectively.…”

Section: Discussionsupporting

confidence: 92%

“…for the years 1957, 1981, and 1997–99, respectively. The small difference between our ELAs of 1957 and 1983 in the Aneto Glacier and the ELA determined by Chueca and Julián (2004b) in Maladeta Glacier could be due to the different topography of the glaciers, which can cause notable variations in the ELAs of different glaciers in the same region (Carrivick and Brewer, 2004; López-Moreno et al, 2006, 2016; Reinwarth and Escher-Vetter, 1999). A similar difference is observed between our ELA of 2015 located at 3134 m a.s.l., and the value of 3050 m a.s.l.…”

Section: Discussioncontrasting

confidence: 63%

“…Thus, we obtained an ELA of 2919 m a.s.l. during the LIA (AABR, ratio 1.6) that agrees with previous estimations for the Aneto Glacier (2909 m a.s.l, González-Trueba et al, 2008), for the Maladeta Glacier (2840 m a.s.l., Chueca and Julián, 2004b; 2905 m a.s.l., González-Trueba et al, 2008) and the Ésera Watershed (snowline altitude of 2900 m a.s.l., Julián and Chueca, 1998). These homogeneous ELA values implies a clear widespread of these glaciers of the Central Pyrenees during the LIA associated with colder conditions than in the modern climate.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling the retreat of the Aneto Glacier (Spanish Pyrenees) since the Little Ice Age, and its accelerated shrinkage over recent decades

et al. 2021

View full text Add to dashboard Cite

The Aneto, located on the Maladeta Massif (Central Pyrenees), is the largest glacier of the Pyrenees. The glacier is 675 m long, occupies an area of 48.64 ha and has a maximum altitude of 3269 m. In this study, we present a detailed area, volume, ice thickness, and Equilibrium Line Altitude reconstruction of the glacier for different periods (LIA, 1957, 1983, 2000, 2006, 2015, and 2017) and analyze its retreat. To estimate the glacier extent during the LIA, the moraines were mapped by using photo interpretation techniques whereas for the recent stages digital satellite images and aerial photographs were used. Moreover, we estimated the topography of the glacier using a simple steady-state model that assumes a perfectly plastic ice rheology, which allowed reconstructing the theoretical ice profiles of the glacier. To reconstruct the ice surface, a digital elevation model was created and combined with the bedrock topography in order to obtain the ice thickness of each stage. The results of the study reveal a considerable retreat of the Aneto Glacier since the LIA. The length of the glacier has reduced from 1970 to 675 m from LIA to2017, and its tongue has retreated from 2385 to 3029 m a.s.l. Furthermore, the glaciated area has been reduced from 245 to 48.64 ha from LIA to 2017 and the ELA has risen from 2919 to 3139 m a.s.l. The data obtained indicates that in the LIA–2017 period the glacier volume has been reduced from 82.57 m × 106 m3 to 3.48 m × 106 m3 and the maximum ice thickness from 95 to 27m. We also reconstructed the climatic conditions, showing an increase in temperature of ~1.14°C from LIA to 2017. These data reveal a vast retreat of the glacier since the LIA, which has accelerated since the 1980’s and even more since the year 2000.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussioncontrasting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling the retreat of the Aneto Glacier (Spanish Pyrenees) since the Little Ice Age, and its accelerated shrinkage over recent decades

et al. 2021

View full text Add to dashboard Cite

show abstract

“…This is characteristic of the environmental data available for the LIA in the region (Morellón et al, 2012). Cool environmental conditions were also present in the Pyrenees with glacial advances (Chueca and Julián, 1996;Oliva et al, 2019).…”

Section: Paleoenvironmental Changes and Human Impactmentioning

confidence: 68%

Morphosedimentary and geoarchaeological records during the last 1400 years in the Ebro depression (NE Spain) and their paleoenvironmental interpretation

et al. 2023

View full text Add to dashboard Cite

Most studies on the geomorphological evolution of the Holocene from the Ebro depression (NE Spain) are focused on the period up to the Roman Epoch (218 BC–476 AD) while some references to medieval (476 AD–15th century) deposits are also occasionally dated. This paper focuses on the establishment of aggradation units on the valley bottoms and slopes of the Ebro depression after 1400 BP, their origin, comparison with other areas, and relationship with global paleoenvironmental changes. These units were produced after the incision phase that marked the end of the large Holocene accumulation (unit H1) around 1400 BP (at the end of the Late Roman Epoch). Morphosedimentary records enable us to establish three aggradation units during the last 1400 years: unit H2 ( ca. 1400–650 cal BP); unit H3 – with two H3A subunits ( ca. 650–500 cal BP) and H3B ( ca. 500–320 cal BP); and the H4 unit (after 320 cal BP). These units are organized following five types of aggradation/incision arrangements with differing complexities. There are also connections among these units and two slope stages in the region. Finally, the genetic relationships between these units and global paleoenvironmental changes are shown (LALIA, MCA, and LIA) and related to anthropic activity. This contribution is the first detailed and systematic approach to the study of morphosedimentary units and sedimentary arrangements during the Recent Holocene in the Mediterranean area.

show abstract

Size specific steady-state accumulation-area ratio: an improvement for equilibrium-line estimation of small palaeoglaciers

Kern

László

2010

Quaternary Science Reviews

View full text Add to dashboard Cite

Influencia de la radiación solar en el proceso de degradación y fragmentación post-pequeña Edad del Hielo del glaciar de la Madaleta (Pirineo Central Español)

Cited by 4 publications

References 10 publications

Modeling the retreat of the Aneto Glacier (Spanish Pyrenees) since the Little Ice Age, and its accelerated shrinkage over recent decades

Modeling the retreat of the Aneto Glacier (Spanish Pyrenees) since the Little Ice Age, and its accelerated shrinkage over recent decades

Morphosedimentary and geoarchaeological records during the last 1400 years in the Ebro depression (NE Spain) and their paleoenvironmental interpretation

Size specific steady-state accumulation-area ratio: an improvement for equilibrium-line estimation of small palaeoglaciers

Contact Info

Product

Resources

About