A5083428970- Geology and Paleoclimatology Research
- Methane Hydrates and Related Phenomena
- Isotope Analysis in Ecology
- Oceanographic and Atmospheric Processes
- Geological Studies and Exploration
- Geological formations and processes
- Climate variability and models
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Marine and environmental studies
- Tree-ring climate responses
- Marine Biology and Ecology Research
- Archaeology and ancient environmental studies
- Geomagnetism and Paleomagnetism Studies
- Paleontology and Stratigraphy of Fossils
- Arctic and Antarctic ice dynamics
- Atmospheric and Environmental Gas Dynamics
- Marine Bivalve and Aquaculture Studies
- Conservation Techniques and Studies
- Astro and Planetary Science
- Pleistocene-Era Hominins and Archaeology
- Cephalopods and Marine Biology
- Atmospheric chemistry and aerosols
- Indigenous Studies and Ecology
- Geological and Geochemical Analysis
Durham University
2019-2022
Rutgers, The State University of New Jersey
2019
Cardiff University
2014-2019
Institute of Marine and Coastal Research
2014
A comprehensive database of paleoclimate records is needed to place recent warming into the longer-term context natural climate variability. We present a global compilation quality-controlled, published, temperature-sensitive proxy extending back 12,000 years through Holocene. Data were compiled from 679 sites where time series cover at least 4000 years, are resolved sub-millennial scale (median spacing 400 or finer) and have one age control point every 3000 with cut-off values slackened in...
Abstract Inconsistencies between Holocene climate reconstructions and numerical model simulations question the robustness of models proxy temperature records. Climate suggest an early-middle Thermal Maximum (HTM) followed by gradual cooling, whereas indicate continuous warming. This discrepancy either implies seasonal biases in proxy-based reconstructions, or that sensitivity to forcings feedbacks needs be reevaluated. Here, we analyze a global database paleotemperature records investigate...
Abstract Mg/Ca and stable oxygen isotope compositions (δ 18 O) of planktic foraminifera tests are commonly used as proxies to reconstruct past ocean conditions including variations in the vertical water column structure. Accurate proxy calibrations require thorough regional studies, since parameters such calcification depth temperature depend on local environmental conditions. Here we present radiocarbon‐dated, modern surface sediment samples data (temperature, salinity, seawater δ from...
Despite the relative climate stability of present interglacial, it has been punctuated by several centennial-scale climatic oscillations; latest which are often colloquially referred to as Medieval Climatic Anomaly (MCA) and Little Ice Age (LIA). The most favored explanation for cause these anomalies is that they were triggered variability in solar irradiance and/or volcanic activity amplified ocean-atmosphere-sea ice feedbacks. As such, changes strength Atlantic Meridional Overturning...
Abstract The subpolar North Atlantic is a key location for the Earth’s climate system. In Labrador Sea, intense winter air–sea heat exchange drives formation of deep waters and surface circulation warm around gyre. This process therefore has ability to modulate oceanic northward transport. Recent studies reveal decadal variability in Sea Water. Yet, crucially, its longer-term history links with European remain limited. Here we present new decadally resolved marine proxy reconstructions,...
Abstract The Indo‐Pacific Warm Pool (IPWP) contains the warmest surface ocean waters on our planet making it a major source of heat and moisture to atmosphere. Changes in extent position IPWP likely impacted tropical global climate past may also do future. With aim put recent changes into longer temporal context, we present new paleoceanographic sea temperature reconstructions from heart Western Pacific Pool, which is region within IPWP, across last 17,000 years. To provide an improved...
Abstract. Arctic freshwater discharges to the Labrador Sea from melting glaciers and sea ice can have a large impact on ocean circulation dynamics in North Atlantic, modifying climate deep water formation this region. In study, we present for first time high resolution record of rafting over last millennium assess effects region climate. The occurrence ice-rafted debris (IRD) was studied using sediments Site GS06-144-03 (57.29° N, 48.37° W; 3432 m depth). IRD fraction 63–150 µm shows...
The North Atlantic is a key region for decadal prediction as it has experienced significant multi-decadal variability over the observed period. This variability, which is thought to be intrinsic region, can potentially modulate, either by amplifying or mitigating, the global warming signal from anthropogenic greenhouse emissions. For example, studies suggest that North Atlantic contributed recent hiatus period between 1998 and 2012, triggering an atmospheric response which impacted...
Abstract. Arctic freshwater discharges to the Labrador Sea from melting glaciers and sea-ice can have a deep impact on ocean circulation dynamics in North Atlantic modifying climate water formation this region. In study, we present for first time high resolution record of ice-rafting over last millennium assess effects region climate. The occurrence ice-rafted debris (IRD) was studied using sediments Site GS06-144-03 (57.29° N, 48.37° W, 3432 m depth). IRD fraction 63–150 µm show higher...