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Áslaug Geirsdóttir - Professor

Áslaug Geirsdóttir

–

School of Engineering and Natural Sciences

Áslaug Geirsdóttir

Professor

- Geology

Location
Askja / N-221
Phone
525 - 4477
Email
age [at] hi.is

Unit
Faculty of Earth Sciences

Curriculum Vitae
Áslaug Geirsdóttir - Curriculum Vitae
ORCID site
https://orcid.org/0000-0003-3125-0195
Research portal – Áslaug Geirsdóttir

Published works

2024

Spatiotemporal variation of modern lake, stream, and soil water isotopes in IcelandHydrology and Earth System Sciences
A Holocene history of climate, fire, landscape evolution, and human activity in northeastern IcelandClimate of the Past
Repeated Early Holocene eruptions of Katla, Iceland, limit the temporal resolution of the Vedde AshBulletin of Volcanology
BrGDGT lipids in cold regions reflect summer soil temperature and seasonal soil water chemistryGeochimica et Cosmochimica Acta

2023

Delayed postglacial colonization of Betula in Iceland and the circum North AtlanticeLife
Moss kill dates and modeled summer temperature track episodic snowline lowering and ice cap expansion in Arctic Canada through the Common EraClimate of the Past
The Amplitude and Timescales of 0–15 ka Paleomagnetic Secular Variation in the Northern North AtlanticJournal of Geophysical Research: Solid Earth

2022

Near-universal trends in brGDGT lipid distributions in natureScience advances
Intact Polar brGDGTs in Arctic Lake CatchmentsJournal of Geophysical Research: Biogeosciences
Multiple Early Holocene eruptions of Katla produced tephra layers with similar composition to the Vedde AshGeochronology

2021

Recurrent outburst floods and explosive volcanism during the Younger Dryas–Early Holocene deglaciation in south IcelandJournal of Quaternary Science
Response of biological productivity to North Atlantic marine front migration during the HoloceneClimate of the Past
Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sedimentsBiogeosciences

2020

Lipid Biomarkers Quantify Holocene Summer Temperature and Ice Cap Sensitivity in Icelandic LakesGeophysical Research Letters
Holocene history of landscape instability in IcelandQuaternary Science Reviews
The Saksunarvatn Ash and the G10ka series tephra. Review and current state of knowledgeQuaternary Geochronology

2019

Controls on the lifespans of Icelandic ice capsEarth and Planetary Science Letters
Sea Ice Control on Winter Subsurface Temperatures of the North Iceland Shelf During the Little Ice AgePaleoceanography and Paleoclimatology
The onset of neoglaciation in Iceland and the 4.2 ka eventClimate of the Past
Tracking Holocene drift-ice limits on the northwest–southwest Iceland shelf: Comparing proxy data with observation and historical evidenceArctic, Antarctic, and Alpine Research
Marker tephra in Haukadalsvatn lake sedimentQuaternary Science Reviews

2018

Sea ice, ice-rafting, and ocean climate across Denmark Strait during rapid deglaciation (∼16–12 cal ka BP) of the Iceland and East Greenland shelvesJournal of Quaternary Science
Holocene glacier and climate variations in Vestfirðir, Iceland, from the modeling of Drangajökull ice capQuaternary Science Reviews
Asymmetric Cooling of the Atlantic and Pacific Arctic During the Past Two MillenniaGeophysical Research Letters
Provenance, stratigraphy and chronology of Holocene tephra from Vestfirðir, IcelandQuaternary Geochronology
Punctuated Holocene climate of Vestfirðir, Iceland, linked to internal/external variables and oceanographic conditionsQuaternary Science Reviews
Climatic control on Icelandic volcanic activity during the mid-HoloceneGeology

2017

Episodic Neoglacial expansion and rapid 20th century retreat of a small ice cap on Baffin Island, Arctic Canada, and modeled temperature changeClimate of the Past

2016

Early Holocene deglaciation of Drangajökull, Vestfirðir, IcelandQuaternary Science Reviews
The subglacial topography of Drangajökull ice cap, NW-Iceland, deduced from dense RES-profilingJokull
The role of sea ice for vascular plant dispersal in the ArcticBiology Letters
Variability in drift ice export from the Arctic Ocean to the North Icelandic Shelf over the last 8000 yearsQuaternary Science Reviews
North Atlantic-Fennoscandian Holocene climate trends and mechanismsQuaternary Science Reviews
Glacier fluctuations during the past 2000 yearsQuaternary Science Reviews
Episodic expansion of Drangajökull, Vestfirðir, Iceland, over the last 3 ka culminating in its maximum dimension during the Little Ice AgeQuaternary Science Reviews
Landforms in Hvítárvatn, central Iceland, produced by recent advances of surging and non-surging glaciersGeological Society Memoir

2015

A high-resolution multi-proxy lake record of Holocene environmental change in southern IcelandJournal of Quaternary Science
Algal pigments in Arctic lake sediments record biogeochemical changes due to Holocene climate variability and anthropogenic global changeJournal of Paleolimnology
Precise chronology of Little Ice Age expansion and repetitive surges of Langjökull, central IcelandGeology
Marine climate variability from Arnarfjörður, NW Iceland during the Medieval Warm period and early/middle Little Ice AgeJokull

2014

Holocene tephra from Iceland and Alaska in SE Greenland shelf sedimentsGeological Society Special Publication

2013

Evolution of NAO and AMO strength and cyclicity derived from a 3-ka varve-thickness record from IcelandQuaternary Science Reviews
Abrupt holocene climate transitions in the northern north atlantic region recorded by synchronized lacustrine records in icelandQuaternary Science Reviews
Substantial agreement on the timing and magnitude of Late Holocene ice cap expansion between East Greenland and the Eastern Canadian ArcticQuaternary Science Reviews
Asynchronous Little Ice Age glacier fluctuations in Iceland and European Alps linked to shifts in subpolar North Atlantic circulationEarth and Planetary Science Letters
Synchronizing holocene lacustrine and marine sediment records using paleomagnetic secular variationGeology
Paleoclimate History of the Arctic

2012

Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea-ice/ocean feedbacksGeophysical Research Letters
Non-linear Holocene climate evolution in the North AtlanticQuaternary Science Reviews

2011

Pliocene and pleistocene glaciations of Iceland. A brief overview of the glacial history.Developments in Quaternary Science
A 3000-year varved record of glacier activity and climate change from the proglacial lake Hvítárvatn, IcelandQuaternary Science Reviews
Centennial-scale climate change from decadally-paced explosive volcanismClimate Dynamics
Do paleoclimate proxies agree? A test comparing 19 late Holocene climate and sea-ice reconstructions from Icelandic marine and lake sedimentsJournal of Quaternary Science

2010

Holocene variability of the North Atlantic Irminger current on the south- and northwest shelf of IcelandMarine Micropaleontology

2009

Tephra Layers in a Sediment Core from Lake Hestvatn, Southern Iceland
Sediment deposition in lake Hestvatn South Iceland during the last deglaciation and the HoloceneJokull
Climate of the Little Ice Age and the past 2000 years in northeast Iceland inferred from chironomids and other lake sediment proxiesJournal of Paleolimnology
A 2000 year record of climate variations reconstructed from Haukadalsvatn, West IcelandJournal of Paleolimnology
Recent Warming Reverses Long-Term Arctic CoolingScience
Holocene and latest Pleistocene climate and glacier fluctuations in IcelandQuaternary Science Reviews

2008

Stabilaztion of glaciers terminating in closed water bodies: Evodence and broader implicationsGeophysical Research Letters
Stabilization of glaciers terminating in closed water bodiesGeophysical Research Letters
Holocene climate conditions and glacier variation in central Iceland from physical modelling and empirical evidenceQuaternary Science Reviews

2007

Glacier fluctuation and inferred climatology of Langjökull ice cap through the Little Ice AgeQuaternary Science Reviews
Holocene temperature history of northern Iceland inferred from subfossil midgesQuaternary Science Reviews
Glaciation, erosion, and landscape evolution of IcelandJournal of Geodynamics

2006

Late Quaternary glacial and deglacial history of eastern Vestfirdir, Iceland using cosmogenic isotope (³⁶Cl) exposure ages and marine coresJournal of Quaternary Science

2004

ErratumQuaternary Science Reviews
Sediment thickness and Holocene erosion rates from a seismic survey of Hvítárvatn, central IcelandJokull
Holocene thermal maximum in the western Arctic (0-180°W)Quaternary Science Reviews
Extent and chronology of glaciations in Iceland; a brief overview of the glacial history

2003

Efstadalsvatn - A multi-proxy study of a Holocene lacustrine sequence from NW IcelandJournal of Paleolimnology

2002

Late Quaternary ice extent and glacial history from the Djúpáll trough, off Vestfirdir peninsula, north-west IcelandPolar Research
Distribution, sediment magnetism and geochemistry of the Saksunarvatn (10 180 ± 60 cal. yr BP) tephra in marine, lake, and terrestrial sediments, northwest IcelandJournal of Quaternary Science
A 36 Ky record of iceberg rafting and sedimentation from north-west IcelandPolar Research
Holocene sediment properties of the East Greenland and Iceland continental shelves bordering Denmark strait (64-68 °) North AtlanticSedimentology

2001

Holocene Paleoclimate Data from the Arctic: Testing Models of Global Climate ChangeQuaternary Science Reviews
Tephra Layers in a Sediment Core from Lake Hestvatn, Southern Iceland: Implications for Evaluating Sedimentation Processes and Environmental Impacts on a Lacustrine System Caused by Tephra Fall Deposits in the Surrounding Watershed
Climate implications of changing arctic sea iceEos
Multicentury-scale records of carbonate (hydrographic?) Variability on the northern Iceland margin over the last 5000 yearsQuaternary Research
Seismostratigraphy and sediment studies of Lake Hestvatn, Southern IcelandJournal of Quaternary Science
Late holocene (~ 5 cal ka) trends and century-scale variability of N. Iceland marine records

2000

The N and W Iceland ShelfQuaternary Science Reviews
Glacial extent and catastrophic meltwater events during the deglaciation of Southern IcelandQuaternary Science Reviews
Late-Holocene terrestrial glacial history of Miki and I.C. Jacobsen Fjords, East GreenlandHolocene
Chronology and paleoenvironments during the late Weichselian deglaciation of the southwest Iceland shelfBoreas
The N and W Iceland Shelf: insights into Last Glacial Maximum ice extent and deglaciation based on acoustic stratigraphy and basal radiocarbon AMS dates Author links open overlay panelQuaternary Science Reviews

1998

¹⁴C AMS dating of Icelandic Lake sedimentsRadiocarbon

1997

The depositional history of the Younger Dryas-preboreal Budi moraines in south-central IcelandArctic and Alpine Research

1996

A review of studies of the earliest glaciation of IcelandTerra Nova

1994

Sedimentary facies and environmental history of the Late‐glacial glaciomarine Fossvogur sediments in Reykjavík, IcelandBoreas
Growth of an intermittent ice sheet in iceland during the late pliocene and early pleistoceneQuaternary Research

1993

The Fossvogur marine sediments in SW Iceland ‐ confined to the Allerød/Younger Dryas transition by AMS 14 C datingBoreas

1991

Diamictites of late Pliocene age in western IcelandJokull
A review of the late pleistocene stratigraphy of Reykjavík, IcelandQuaternary International
A record of Pliocene and Pleistocene glaciations and climatic changes in the North Atlantic based on variations in volcanic and sedimentary facies in IcelandMarine Geology

1989

Late quaternary spatial and temporal changes in clay- and silt-size mineral assemblages of fiord and shelf cores, western Baffin Bay, northwest North AtlanticContinental Shelf Research

Keywords for Specialisation:

Glacial Geology