Results 61 to 70 of about 214,511 (228)

‘The most advanced outpost of cultivation’: palynological evidence for cereal agriculture and population resilience in a marginal upland environment

Journal of Quaternary Science, EarlyView.
ABSTRACT Upland farming in Europe is frequently assumed to have been limited and precarious, despite relict spade‐dug ridges providing firm evidence of past crop growing. Direct evidence for crop types in post‑Medieval to Modern (~since 1500 CE) uplands is rare; yet, in Ireland, relict spade‐dug ridges that date to this period are commonly interpreted ...
Helen Essell, Gill Plunkett
wiley   +1 more source

Arctic Environmental Protection Strategy (AEPS) Ministerial Meeting in Alta, Norway. 1997 [PDF]

, 1997
Arctic Environmental Protection Strategy (AEPS) is the predecessor of the Arctic Council, established in Rovaniemi Finland in 1991.
Arctic Council, -
core   +1 more source

Managing and visualising geochemical data for tephra correlation with the IntChron Integration Tool

Journal of Quaternary Science, EarlyView.
ABSTRACT There is now a wealth of glass‐shard geochemical data for volcanic ash (tephra) layers from a wide range of volcanoes and eruptions, providing invaluable datasets for tephrochronology. However, compilation of published data to assess tephra correlations leads to large files and requires careful management.
Victoria C. Smith, Danielle McLean, Eloise Wilkinson‐Rowe, Emma L. Horn, Gavin Kane, Christopher Bronk Ramsey   +5 more
wiley   +1 more source

Declaration on the Establishment of the Arctic Council 1996 - Ottawa Declaration. [PDF]

, 1996
Declaration on the Establishment of the Arctic Council - Joint Communique of the Governments of the Arctic Countries on the Establishment of the Arctic Council.
Arctic Council, -
core   +1 more source

The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland

Journal of Glaciology, 2020
We present changes of the ice margin in Northwest Greenland at the Eastern part of the Nunatarssuaq Ice Cap (NIC) over six decades. The ice margin in this area terminates as a near-vertical ice cliff of between 9 and 33 m thickness. During the years 1954–
Jakob Abermann, Jakob F Steiner, Rainer Prinz, Matthias Wecht, Peter Lisager   +4 more
doaj   +1 more source

New Schmidt hammer exposure‐age dating calibrations for the Last Glacial Termination in NW Scotland: Development and application to undated Torridon Group sandstone surfaces in Wester Ross

Journal of Quaternary Science, EarlyView.
ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry, David Small, Oliver T. Bartlett, Jonathan Newitt   +3 more
wiley   +1 more source

Responses of primary producers, anoxia, and chemical feedback to Late Glacial climate change: Insights from a paired lake approach

Journal of Quaternary Science, EarlyView.
Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser, Stan J. Schouten, Petra Zahajská, Andrea Lami, Jacqueline F.N. van Leeuwen, Rik Tjallingii, Hendrik Vogel, Martin Grosjean   +7 more
wiley   +1 more source

A Holocene fjord record from Greenland reveals exceptional Atlantic water influence during minimum ice-sheet extent

Communications Earth & Environment
The Holocene Thermal Maximum has been considered an analog for near-future climate. Terrestrial records show that this period culminated in Southwest Greenland with the Greenland Ice Sheet retreating behind its present-day position.
Anna Bang Kvorning, Maija Heikkilä, Christof Pearce, Marit-Solveig Seidenkrantz, Gavin L. Simpson, Lorenz Meire, Antoon Kuijpers, Nicolaj Krog Larsen, Sofia Ribeiro   +8 more
doaj   +1 more source

Recent and future variability of the ice-sheet catchment of Sermeq Kujalleq (Jakobshavn Isbræ), Greenland

Journal of Glaciology
Knowledge of ice-sheet catchments is critical for mass-balance assessments, especially glacier-scale input–output budgets. This study explores variations in the catchment of Sermeq Kujalleq, or Jakobshavn Isbrø, Greenland. Six observation-based catchment
Anja Løkkegaard, William Colgan, Andy Aschwanden, Shfaqat Abbas Khan   +3 more
doaj   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source