Results 81 to 90 of about 14,474 (255)

South Atlantic Multi‐Site Calibration of Coral Oxygen Isotope Paleothermometer

open access: yesGeochemistry, Geophysics, Geosystems
Coral‐based stable oxygen isotopes (δ18O) have been used as a proxy for sea surface temperature (SST) since the 1970s, and δ18O–SST calibration studies have been fundamental to assure robust and faithful SST reconstructions.
N. S. Pereira   +10 more
doaj   +1 more source

New Holocene pollen records from the Brazilian Caatinga

open access: yesAnais da Academia Brasileira de Ciências
We present two pollen diagrams from the semi-arid Caatinga of the Catimbau National Park, in Pernambuco and from a Mauritia palm forest in the Caatinga/Cerrado ecotone of southern Piauí, NE Brazil, spanning the last 10,000 cal.
VANDA B. DE MEDEIROS   +5 more
doaj   +1 more source

Projected Annual and Monsoonal Precipitation Trends of CMIP6 Over Peninsular Malaysia

open access: yesInternational Journal of Climatology, EarlyView.
In this study, we examined historical and projected precipitation temporal trends across Peninsular Malaysia using ground‐based records and CMIP6 models from NEX‐GDDP. Analysing data from 518 reliable gauges over 1973–2022, it identified spatial and monsoonal variations.
Nurul Afiqah Mohamad Arbai   +1 more
wiley   +1 more source

Eldgjá and Laki: Two large Icelandic fissure eruptions and a historical-critical approach for interdisciplinary researchers working on past nature-induced disasters

open access: yesVolcanica
The integration of archives of societies with archives of nature has led to collaborations between the natural sciences and the humanities. Not all those involved consider these archives equal, which led to some studies featuring explanations promoting ...
Stephan F. Ebert, Katrin Kleemann
doaj   +1 more source

Projected Intensification of Hydroclimatic Extremes in Rio Grande do Norte, Brazil, Under CMIP6 Scenarios

open access: yesInternational Journal of Climatology, EarlyView.
The graphical abstract presents observed (1963–2023) and projected changes in hydroclimatic extremes in Rio Grande do Norte, Brazil. It integrates dry‐spell duration (CDD) and extreme precipitation (R95pTOT) using CMIP6 multimodel ensembles under SSP1‐2.6, SSP2‐4.5, and SSP5‐8.5.
Daris Correia dos Santos
wiley   +1 more source

Carbon cycle implications of terrestrial weathering changes since the last glacial maximum

open access: yesFACETS, 2017
We examine the importance of the rock weathering feedback mechanism during the last deglacial period (∼16 000–4000 BCE) using an Earth system model of intermediate complexity (the University of Victoria Earth System Climate Model (UVic ESCM)) with four ...
M.-O. Brault, L.A. Mysak, H.D. Matthews
doaj   +1 more source

How Well Is Surface Diurnal Temperature Range Represented by Observations at 2‐m Level

open access: yesInternational Journal of Climatology, EarlyView.
We demonstrate that geostationary satellites depict well the Diurnal Temperature Range (DTR) in the US but differ from information at 2 m level from model outputs. Upper: mean diurnal temperature range (DTR) using GOES‐E based land surface temperature (LST) for January (left) and July (right) during 2004–2009. Lower: mean diurnal temperature range (DTR)
Rachel T. Pinker   +4 more
wiley   +1 more source

Three Centuries of ENSO Variability Inferred From Muna, Sulawesi, Indonesia Teak δ18O: Limited Response to Radiative Forcing

open access: yesGeophysical Research Letters
We present an annual resolution oxygen isotope anomaly (Δδ18Oc) record, derived from eight teak (Tectona grandis L.f.) tree ring‐dated δ18Oc series from Muna, Southeast Sulawesi, Indonesia (5.3°S, 123°E).
M. N. Evans   +7 more
doaj   +1 more source

Co-authorship analysis of the speleothem proxy-climate community: working together to tackle the big problems

open access: yesInternational Journal of Speleology, 2018
Understanding the environmental context of speleothem palaeo-climate proxies is fundamental to their interpretation. We analyse four methodological approaches to accomplish this: stalactite discharge analysis, proxy/process tracer studies, discharge ...
Micheline L. Campbell   +3 more
doaj   +1 more source

The spatial variation of Asian dust and marine aerosol contributions to glaciochemical signals in central Asia [PDF]

open access: yes, 1992
Short-term (6 months to 17 years) glaciochemical records have been collected from several glacier basins in the mountains of central Asia. The spatial distribution of snow chemistry in central Asia is controlled by the influx of dust from the large ...
Mayewski, Paul A, Wake, Cameron P
core   +1 more source

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