Search Results - "Kehrwald, N"
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Rapa Nui (Easter Island) Rano Raraku crater lake basin: Geochemical characterization and implications for the Ahu-Moai Period
Published in PloS one (13-10-2021)“…Rano Raraku, the crater lake constrained by basaltic tuff that served as the primary quarry used to construct the moai statues on Rapa Nui (Easter Island), has…”
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Amino acids in Arctic aerosols
Published in Atmospheric chemistry and physics (08-11-2012)“…Amino acids are significant components of atmospheric aerosols, affecting organic nitrogen input to marine ecosystems, atmospheric radiation balance, and the…”
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Lake sediment fecal and biomass burning biomarkers provide direct evidence for prehistoric human-lit fires in New Zealand
Published in Scientific reports (14-08-2018)“…Deforestation associated with the initial settlement of New Zealand is a dramatic example of how humans can alter landscapes through fire. However, evidence…”
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4
Fire in ice: two millennia of boreal forest fire history from the Greenland NEEM ice core
Published in Climate of the past (29-10-2014)“…Biomass burning is a major source of greenhouse gases and influences regional to global climate. Pre-industrial fire-history records from black carbon,…”
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5
Method for the determination of specific molecular markers of biomass burning in lake sediments
Published in Organic geochemistry (01-06-2014)“…[Display omitted] •Determining levoglucosan, mannosan and galactosan in lake sediments with HPAEC–MS.•The three biomass burning markers correlate with the fire…”
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Halogen species record Antarctic sea ice extent over glacial–interglacial periods
Published in Atmospheric chemistry and physics (12-07-2013)“…Sea ice is an integral part of the earth's climate system because it affects planetary albedo, sea-surface salinity, and the atmosphere–ocean exchange of…”
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7
Iron speciation in aerosol dust influences iron bioavailability over glacial-interglacial timescales
Published in Geophysical research letters (28-04-2013)“…Iron deposition influences primary production and oceanic sequestration of atmospheric carbon dioxide (CO2). Iron has two oxidation states, Fe(II) and Fe(III),…”
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8
Anthropogenic impact in the Maya Lowlands of Petén, Guatemala, during the last 5500 years
Published in Journal of quaternary science (01-02-2018)“…ABSTRACT Trace and rare earth elements from a sediment core from Lake Petén Itzá (Guatemala) depict the geochemical dynamics affecting the lake from ∼5500 a BP…”
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Deglaciated areas of Kilimanjaro as a source of volcanic trace elements deposited on the ice cap during the late Holocene
Published in Quaternary science reviews (01-06-2014)“…Ice fields on Kilimanjaro (5895 m a.s.l., Tanzania) are retreating and 85% of the ice cover has been lost since 1912. The degree to which this recession is…”
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Impact of Po Valley emissions on the highest glacier of the Eastern European Alps
Published in Atmospheric chemistry and physics (01-01-2011)“…In June 2009, we conducted the first extensive glaciological survey of Alto dell'Ortles, the uppermost glacier of Mt. Ortles (3905 m a.s.l.), the highest…”
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Greenland ice core evidence of the 79 AD Vesuvius eruption
Published in Climate of the past (13-06-2013)“…Volcanic tephra are independent age horizons and can synchronize strata of various paleoclimate records including ice and sediment cores. The Holocene section…”
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12
Fire and climate: Biomass burning recorded in ice and lake cores
Published in EPJ Web of conferences (01-01-2010)“…Human activities including fossil fuel burning are currently altering the global climate system at rates faster than ever recorded in geologic time. Biomass…”
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Rapa Nui
Published in PloS one (13-10-2021)“…Rano Raraku, the crater lake constrained by basaltic tuff that served as the primary quarry used to construct the moai statues on Rapa Nui (Easter Island), has…”
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Historic Global Biomass Burning Emissions for CMIP6 (BB4CMIP) Based on Merging Satellite Observations with Proxies and Fire Models (1750-2015)
Published in Geoscientific Model Development (11-09-2017)“…Fires have influenced atmospheric composition and climate since the rise of vascular plants, and satellite data has shown the overall global extent of fires…”
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15
Fire, vegetation, and Holocene climate in a southeastern Tibetan lake: a multi-biomarker reconstruction from Paru Co
Published in Climate of the past (23-10-2018)“…The fire history of the Tibetan Plateau over centennial to millennial timescales is not well known. Recent ice core studies reconstruct fire history over the…”
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High-latitude Southern Hemisphere fire history during the mid- to late Holocene (6000–750 BP)
Published in Climate of the past (21-06-2018)“…We determined the specific biomass burning biomarker levoglucosan in an ice core from the TALos Dome Ice CorE drilling project (TALDICE) during the mid- to…”
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