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Université de Fribourg

Cenozoic evolution of the steppe-desert biome in Central Asia

Barbolini, N. ; Woutersen, A. ; Dupont-Nivet, G. ; Silvestro, Daniele ; Tardif, D. ; Coster, P. M. C. ; Meijer, N. ; Chang, C. ; Zhang, H.-X. ; Licht, A. ; Rydin, C. ; Koutsodendris, A. ; Han, F. ; Rohrmann, A. ; Liu, X.-J. ; Zhang, Y. ; Donnadieu, Y. ; Fluteau, F. ; Ladant, J.-B. ; Le Hir, G. ; Hoorn, C.

In: Science Advances, 2020, vol. 6, no. 41, p. eabb8227

The origins and development of the arid and highly seasonal steppe-desert biome in Central Asia, the largest of its kind in the world, remain largely unconstrained by existing records. It is unclear how Cenozoic climatic, geological, and biological forces, acting at diverse spatial and temporal scales, shaped Central Asian ecosystems through time. Our synthesis shows that the Central Asian...

Université de Fribourg

Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid Andes of central Chile

Ayala, Álvaro ; Farías-Barahona, David ; Huss, Matthias ; Pellicciotti, Francesca ; McPhee, James ; Farinotti, Daniel

In: The Cryosphere, 2020, vol. 14, no. 6, p. 2005–2027

As glaciers adjust their size in response to climate variations, long-term changes in meltwater production can be expected, affecting the local availability of water resources. We investigate glacier runoff in the period 1955–2016 in the Maipo River basin (4843 km2, 33.0–34.3∘ S, 69.8–70.5∘ W), in the semiarid Andes of Chile. The basin contains more than 800 glaciers, which...

Université de Fribourg

Brief communication: Ad hoc estimation of glacier contributions to sea-level rise from the latest glaciological observations

Zemp, Michael ; Huss, Matthias ; Eckert, Nicolas ; Thibert, Emmanuel ; Paul, Frank ; Nussbaumer, Samuel U. ; Gärtner-Roer, Isabelle

In: The Cryosphere, 2020, vol. 14, no. 3, p. 1043–1050

Comprehensive assessments of global glacier mass changes based on a variety of observations and prevailing methodologies have been published at multi-annual intervals. For the years in between, the glaciological method provides annual observations of specific mass changes but is suspected to not be representative at the regional to global scales due to uneven glacier distribution with...

Université de Fribourg

Impact of bottom water currents on benthic foraminiferal assemblages in a cold-water coral environment: The Moira Mounds (NE Atlantic)

Fentimen, Robin ; Lim, Aaron ; Rüggeberg, Andres ; Wheeler, Andrew J. ; Rooij, David Van ; Foubert, Anneleen

In: Marine Micropaleontology, 2020, vol. 154, p. 101799

Strong bottom currents play a key role in cold-water coral environments by shaping their morphology and providing the necessary food for the corals to thrive. This study investigates the differences between living and dead benthic foraminiferal assemblages in such environments, more precisely on the Moira Mounds (NE Atlantic). A specific focus is to understand the role of currents and their...