Results 41 to 50 of about 1,030 (156)

Deglaciation and proglacial lakes [PDF]

Geology Today, 2015
Glaciers and ice sheets are important constituents of the Earth's land surface. Current worldwide retreat of glaciers has implications for the environment and for civilisation. There are a range of geomorphic changes occurring in cold environments and it is anticipated that these will be accentuated as a consequence of climate change.
TWEED, Fiona, Carrivick, Jonathan L.
openaire   +2 more sources

Decoupling glacier retreat and surface stabilization on the Snežnik Plateau (Slovenia), insights from in situ cosmogenic 36Cl exposure and depth‐profile ages

Journal of Quaternary Science, EarlyView.
ABSTRACT Glaciokarst landscapes pose distinctive challenges for cosmogenic dating because meltwater and runoff can be rapidly rerouted into ponors and conduit networks, weakening glacier–river coupling and promoting local sediment storage. We reconstruct glacier retreat and postglacial stabilization on the Snežnik Plateau (SW Slovenia) using in situ ...
Onur Altınay, Mehmet Akif Sarıkaya, Uroš Stepišnik, Manja Žebre, Cengiz Yıldırım, Attila Çiner, Klaus M. Wilcken   +6 more
wiley   +1 more source

An Inconsistent ENSO Response to Northern Hemisphere Stadials Over the Last Deglaciation

Geophysical Research Letters
The dynamics shaping the El Niño‐Southern Oscillation's (ENSO) response to present and future climate change remain unclear, partly due to limited paleo‐ENSO records spanning past abrupt climate events.
Ryan H. Glaubke, Matthew W. Schmidt, Jennifer E. Hertzberg, Lenzie G. Ward, Franco Marcantonio, Danielle Schimmenti, Kaustubh Thirumalai   +6 more
doaj   +1 more source

The Tuupovaara end moraine in North Karelia, Eastern Finland - an ice-marginal formation of the same age as the Salpausselkä ridges [PDF]

Bulletin of the Geological Society of Finland, 1983
Described in this report is a previously for the most part unknown ice-marginal formation in the province of North Karelia extending from the parish of Värtsilä via Tohmajärvi and Tuupovaara to the parish of Ilomantsi.
H. Rainio
doaj   +1 more source

On deglaciation-induced perturbations of the geoid [PDF]

Canadian Journal of Earth Sciences, 1986
The importance of geoid perturbations in interpreting tilts of glacial lake levels is investigated, using a representative theoretical model. It is shown that near the ice margin, the slope of the Earth's perturbed surface is everywhere large compared with the slope of the associated undulation of the geoid. Perturbations of the geoid may therefore be
openaire   +2 more sources

Discriminating Arid Ecosystems and Tracking Desertification Dynamics: Evidence From Grain‐Size End‐Member in the Manas River Basin, Northern Tianshan Mountains

Land Degradation &Development, EarlyView.
ABSTRACT The ecosystem of the Manas River Basin, composed of mountains, oases, and deserts, constitutes an ideal natural laboratory for investigating surface processes and environmental evolution in arid regions. Elucidating the provenance, transport dynamics, and climate response mechanisms of surface sediments in this system is critical for advancing
Jiangyong Wang, Qingcao Tian, Ao Yan, Xudong Liu, Ziyi Jiao, Zhankui Bai   +5 more
wiley   +1 more source

Isoetes ×atruensis (Isoetaceae – Lycopodiopsida), a new interspecific sterile hybrid from Rajasthan of Western India

Nordic Journal of Botany, EarlyView.
Isoetes ×atruensis hyb. nov. is shown to be a triploid (2n = 3× = 33 + 1) sterile interspecific hybrid between diploid (2n = 2× = 22 + 1) I. coromandelina and tetraploid (2n = 4× = 44 + 1) I. rajasthanensis. It has been found in two locations in Rajasthan, India.
Sarvesh Kumar Singh, Daniel F. Brunton, Pradeep Kumar Shukla, Santosh Kumar Shukla, Nawal Kishore Dubey   +4 more
wiley   +1 more source

Late glacial and Holocene glaciation history of North and Northeast Greenland

Arctic, Antarctic, and Alpine Research, 2022
Northeast Greenland is the place where the Greenland Ice Sheet (GrIS) experienced the largest areal changes since the Last Glacial Maximum. However, the age constraints of the last deglaciation are in some areas sparse.
Nicolaj K. Larsen, Anne Sofie Søndergaard, Laura B. Levy, Astrid Strunk, Daniel S. Skov, Anders Bjørk, Shfaqat A. Khan, Jesper Olsen   +7 more
doaj   +1 more source

Regional landscape differences lead to contrasts in the strength of environmental sorting among crustacean zooplankton metacommunities

Oikos, EarlyView.
Processes underlying metacommunity structuring are important for understanding species tracking of environmental change at a landscape scale. Species' functional traits more closely reflect their ecological roles than taxonomy, therefore, adopting a functional approach allows us a better understanding of metacommunity structuring.
Annabelle Fortin‐Archambault, Beatrix E. Beisner, Alison M. Derry   +2 more
wiley   +1 more source

Deglaciation rate on southern and western Spitsbergen in the conditions of Arctic amplification [PDF]

Polish Polar Research, 2018
This paper reports on a morphometric analysis of land-terminating glaciers on southern and western Spitsbergen in the years 1936–2014. An attempt was made to estimate the deglaciation rate and the scale of its acceleration in the 21st century in the ...
Joanna Ewa Szafraniec
doaj   +1 more source