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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

Supplementary material to "Spatiotemporal variation of modern lake, stream, and soil water isotopes in Iceland"
Spatiotemporal variation of modern lake, stream, and soil water isotopes in Iceland
A Holocene history of climate, fire, landscape evolution, and human activity in northeastern IcelandClimate of the Past
High-resolution Holocene record from Torfdalsvatn, north Iceland, reveals natural and anthropogenic impacts on terrestrial and aquatic environments
Supplementary material to "High-resolution Holocene record from Torfdalsvatn, north Iceland, reveals natural and anthropogenic impacts on terrestrial and aquatic environments"
BrGDGT lipids in cold regions reflect summer soil temperature and seasonal soil water chemistryGeochimica et Cosmochimica Acta
Spatiotemporal variation of modern lake, stream, and soil water isotopes in IcelandHydrology and Earth System Sciences

2023

Moss kill-dates and modeled summer temperature track episodic snowline lowering and ice-cap expansion in Arctic Canada through the Common Era
Delayed postglacial colonization of Betula in Iceland and the circum North AtlanticeLife
The Amplitude and Timescales of 0–15 ka Paleomagnetic Secular Variation in the Northern North AtlanticJournal of Geophysical Research: Solid Earth
A Holocene history of climate, fire, landscape evolution, and human activity in Northeast Iceland
Regional precipitation variability modulates Holocene fire history of Iceland
Delayed postglacial colonization ofBetulain Iceland and the circum North Atlantic
Repeated Early Holocene eruptions of Katla, Iceland, limit the temporal resolution of the Vedde AshBulletin of Volcanology
Delayed postglacial colonization of Betula in Iceland and the circum North AtlanticeLife

2022

Intact Polar brGDGTs in Arctic Lake Catchments: Implications for Lipid Sources and Paleoclimate ApplicationsJournal of Geophysical Research: Biogeosciences
Recurrent outburst floods and explosive volcanism during the Younger Dryas–Early Holocene deglaciation in south Iceland: evidence from a lacustrine recordJournal of Quaternary Science
Near-universal trends in brGDGT lipid distributions in natureScience Advances
Supplementary material to "Multiple Early Holocene eruptions of Katla produced tephra layers with similar composition to the Vedde Ash"
Multiple Early Holocene eruptions of Katla produced tephra layers with similar composition to the Vedde Ash
Tracing Holocene natural and anthropogenic signals in Iceland based on fire and faecal markers in lacustrine sediments

2021

Supplementary material to "Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments"
Response of biological productivity to North Atlantic marine front migration during the HoloceneClimate of the Past
Revised brGDGT fractional abundances and warm-season temperatures strengthen relationships between brGDGTs and environmental variables
Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sediments
Revised fractional abundances and warm-season temperatures substantially improve brGDGT calibrations in lake sedimentsBiogeosciences

2020

Response of biological productivity to North Atlantic marine front migration during the Holocene
Lipid Biomarkers Quantify Holocene Summer Temperature and Ice Cap Sensitivity in Icelandic LakesGeophysical Research Letters
Holocene history of landscape instability in Iceland: Can we deconvolve the impacts of climate, volcanism and human activity?Quaternary Science Reviews
Supplementary material to "Response of biological productivity to North Atlantic marine front migration during the Holocene"
Climate, volcanism and human impact on Iceland’s landscape during the last two millennia.

2019

Sea Ice Control on Winter Subsurface Temperatures of the North Iceland Shelf During the Little Ice Age: A TEX86 Calibration Case StudyPaleoceanography and Paleoclimatology
Marker tephra in Haukadalsvatn lake sediment: A key to the Holocene tephra stratigraphy of northwest IcelandQuaternary Science Reviews
Controls on the lifespans of Icelandic ice capsEarth and Planetary Science Letters
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

2018

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
Asymmetric Cooling of the Atlantic and Pacific Arctic During the Past Two Millennia: A Dual Observation-Modelling StudyGeophysical Research Letters
Climatic control on Icelandic volcanic activity during the mid-Holocene: COMMENTGeology
Provenance, stratigraphy and chronology of Holocene tephra from Vestfirðir, IcelandQuaternary Geochronology
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
The onset of Neoglaciation in Iceland and the 4.2 ka eventClimate of the Past Discussions
Response to referee #2
Asymmetric Cooling of the Atlantic and Pacific Arctic During the Past Two Millennia: A Dual Observation-Modeling StudyGeophysical Research Letters
Response to referee #1

2017

Supplementary material to "Episodic Neoglacial expansion and rapid 20th Century retreat of a small ice cap on Baffin Island, Arctic Canada and modeled temperature change"
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
Episodic Neoglacial expansion and rapid 20th Century retreat of asmall ice cap on Baffin Island, Arctic Canada and modeledtemperature changeClimate of the Past Discussions

2016

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

2015

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

2014

Holocene tephra from Iceland and Alaska in SE Greenland Shelf SedimentsGeological Society, London, Special Publications
Holocene tephra from Iceland and Alaska in SE Greenland shelf sedimentsGeological Society Special Publication

2013

Substantial agreement on the timing and magnitude of Late Holocene ice cap expansion between East Greenland and the Eastern Canadian Arctic: a commentary on Lowell et al., 2013Quaternary Science Reviews
Abrupt Holocene climate transitions in the northern North Atlantic region recorded by synchronized lacustrine records in IcelandQuaternary 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
Late Holocene (∼ 5 cal ka) Trends and Century-Scale Variability of N. Iceland Marine Records: Measures of Surface Hydrography, Productivity, and Land/Ocean InteractionsThe Oceans and Rapid Climate Change
Synchronizing holocene lacustrine and marine sediment records using paleomagnetic secular variationGeology
Evolution of NAO and AMO strength and cyclicity derived from a 3-ka varve-thickness record from IcelandQuaternary Science Reviews
Synchronizing Holocene lacustrine and marine sediment records using paleomagnetic secular variationGeology
Paleoclimate History of the ArcticEncyclopedia of Quaternary Science: Second Edition

2012

Abrupt onset of the Little Ice Age triggered by volcanism and sustained by sea-ice/ocean feedbacksGeophysical Research Letters
Rapid Environmental Change Recorded in High-Resolution Lacustrine Records in IcelandQuaternary International
Non-linear Holocene climate evolution in the North Atlantic: a high-resolution, multi-proxy record of glacier activity and environmental change from Hvítárvatn, central IcelandQuaternary Science Reviews
Climate evolution and soil erosion during the last 2000 years reconstructed from Icelandic lake systemsQuaternary International

2011

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 volcanism: A coupled sea ice-ocean mechanismClimate Dynamics
Pliocene and pleistocene glaciations of Iceland. A brief overview of the glacial history.Developments in Quaternary Science
Pliocene and Pleistocene Glaciations of IcelandQuaternary Glaciations - Extent and Chronology - A Closer Look
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

Recent Warming Reverses Long-Term Arctic CoolingScience
Holocene and latest Pleistocene climate and glacier fluctuations in IcelandQuaternary 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 WatershedVolcaniclastic Sedimentation in Lacustrine Settings
Deglacial and Holocene sediment distribution in Hestvatn, South Iceland, derived from a seismic and multibeam surveyJokull

2008

A 2000 year record of climate variations reconstructed from Haukadalsvatn, West IcelandJournal of Paleolimnology
Climate of the Little Ice Age and the past 2000 years in northeast Iceland inferred from chironomids and other lake sediment proxiesJournal of Paleolimnology
Sedimentary facies and environmental history of the Late-glacial glaciomarine Fossvogur sediments in Reykjavík, IcelandBoreas
The Fossvogur marine sediments in SW Iceland - confined to the Allerød/Younger Dryas transition by AMS 14 C datingBoreas
Stabilization of glaciers terminating in closed water bodies: Evidence and broader implicationsGeophysical Research Letters
Stabilization of glaciers terminating in closed water bodies: Evidence and broader implicationsGeophysical 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
Glaciation, erosion, and landscape evolution of IcelandJournal of Geodynamics
Holocene temperature history of northern Iceland inferred from subfossil midgesQuaternary Science Reviews

2006

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

2005

Do all individuals with a family history of age-related maculopathy (ARM) develop age-related macular degeneration (AMD) if they live to be 100 years old?Investigative Ophthalmology & Visual Science

2004

Holocene thermal maximum in the western Arctic (0-180°W)Quaternary Science Reviews
Erratum: Holocene thermal maximum in the western Arctic (0-180°W) (Quaternary Science Reviews (2003) 23 (529-560) DOI: 10.1016/j.quascirev.2003. 09.007Quaternary Science Reviews
Extent and chronology of glaciations in Iceland; a brief overview of the glacial historyDevelopments in Quaternary Science
Extent and chronology of glaciations in Iceland; a brief overview of the glacial historyQuaternary Glaciations Extent and Chronology - Part I: Europe

2003

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

2002

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
Holocene sediment properties of the East Greenland and Iceland continental shelves bordering Denmark Strait (64-68°N), North AtlanticSedimentology
Late Quaternary ice extent and glacial history from the Djúpáll trough, off Vestfirdir peninsula, north-west Iceland: a stacked 36 cal. Ky environmental recordPolar Research
A 36 Ky record of iceberg rafting and sedimentation from north-west IcelandPolar Research
Late Quaternary ice extent and glacial history from the Dj�p�ll trough, off Vestfirdir peninsula, north-west Iceland: a stacked 36 cal. Ky environmental recordPolar Research
A 36 Ky record of iceberg rafting and sedimentation from north-west IcelandPolar Research
A 36 Ky record of iceberg rafting and sedimentation from north-west IcelandPolar Research

2001

Climate implications of changing arctic sea iceEos
Holocene paleoclimate data from the Arctic: testing models of global climate changeQuaternary Science Reviews
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 Iceland: implications for the deglacial history of the regionJournal of Quaternary Science
Late holocene (~ 5 cal ka) trends and century-scale variability of N. Iceland marine records: Measures of surface hydrography, productivity, and land/ocean interactionsGeophysical Monograph Series

2000

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

1998

C-14 AMS dating of Icelandic lake sedimentsRadiocarbon
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
The Depositional History of the Younger Dryas-Preboreal Budi Moraines in South-Central IcelandArctic and Alpine Research
The depositional history of the Younger Dryas-preboreal Budi moraines in south-central IcelandArctic and Alpine Research
14C AMS Dating of Icelandic Lake SedimentsRadiocarbon

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 REYKJAVIK, 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 ALLEROD YOUNGER DRYAS TRANSITION BY AMS C-14 DATINGBoreas

1991

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
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
A review of the late pleistocene stratigraphy of Reykjavík, IcelandQuaternary International

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