A5006800238- Geology and Paleoclimatology Research
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Polar Research and Ecology
- Evolution and Paleontology Studies
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Geological Studies and Exploration
- Paleontology and Stratigraphy of Fossils
- Methane Hydrates and Related Phenomena
- Meteorological Phenomena and Simulations
- Geochemistry and Geologic Mapping
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Geological and Geophysical Studies
- Species Distribution and Climate Change
- Geological formations and processes
- Geophysics and Gravity Measurements
- Hydrocarbon exploration and reservoir analysis
- Geomagnetism and Paleomagnetism Studies
- Fluid Dynamics and Turbulent Flows
- Cryospheric studies and observations
- Geological Modeling and Analysis
- Metabolomics and Mass Spectrometry Studies
- Marine Biology and Ecology Research
Utrecht University
2015-2025
Delft University of Technology
2024
University of Applied Sciences Utrecht
2020-2024
ORCID
2021
Bolin Centre for Climate Research
2020
Stockholm University
2020
Royal Netherlands Meteorological Institute
2014
Abstract. The Pliocene epoch has great potential to improve our understanding of the long-term climatic and environmental consequences an atmospheric CO2 concentration near ∼400 parts per million by volume. Here we present large-scale features climate as simulated a new ensemble models varying complexity spatial resolution based on reconstructions boundary conditions (the Model Intercomparison Project Phase 2; PlioMIP2). As global annual average, modelled surface air temperatures increase...
Abstract. Past warm periods provide an opportunity to evaluate climate models under extreme forcing scenarios, in particular high ( > 800 ppmv) atmospheric CO2 concentrations. Although a post hoc intercomparison of Eocene ∼ 50 Ma) model simulations and geological data has been carried out previously, past high-CO2 have never evaluated consistent framework. Here, we present experimental design for three within the early latest Paleocene (the EECO, PETM, pre-PETM). Together with CMIP6...
Abstract. A range of future climate scenarios are projected for high atmospheric CO2 concentrations, given uncertainties over human actions as well potential environmental and climatic feedbacks. The geological record offers an opportunity to understand system response a forcings feedbacks which operate multiple temporal spatial scales. Here, we examine single interglacial during the late Pliocene (KM5c, ca. 3.205±0.01 Ma) when exceeded pre-industrial but were similar today lowest emission...
Abstract. Understanding the extreme greenhouse of Eocene (56–34 Ma) is key to anticipating potential future conditions. While providing an end member towards a distant high-emission scenario, climate also challenges different tools at hand reconstruct such Besides remaining uncertainty regarding conditions under which large-scale glaciation Antarctica took place, there poor understanding how most continent remained ice free throughout across wide range global temperatures. Seemingly...
Abstract. The Eocene–Oligocene transition (EOT), which took place approximately 34 Ma ago, is an interval of great interest in Earth's climate history, due to the inception Antarctic ice sheet and major global cooling. Climate simulations are needed help interpret proxy data, test mechanistic hypotheses for determine sensitivity at time. However, model studies EOT thus far typically employ control states designed a different time period, or ocean resolution on order 3∘. Here we developed new...
Abstract. Studies on the palaeoclimate and palaeoceanography using numerical model simulations may be considerably dependent implemented geographical reconstruction. Because building palaeogeographic datasets for these models is often a time-consuming elaborate exercise, frequently use reconstructions in which latest state-of-the-art plate tectonic reconstructions, palaeotopography -bathymetry, or vegetation have not yet been incorporated. In this paper, we therefore provide new method to...
Abstract. Palaeoclimate simulations improve our understanding of the climate, inform us about performance climate models in a different scenario, and help to identify robust features system. Here, we analyse Arctic warming an ensemble 16 mid-Pliocene Warm Period (mPWP), derived from Pliocene Model Intercomparison Project Phase 2 (PlioMIP2). The PlioMIP2 simulates (60–90∘ N) annual mean surface air temperature (SAT) increases 3.7 11.6 ∘C compared pre-industrial period, with multi-model (MMM)...
Abstract. The early and late Eocene have both been the subject of many modelling studies, but few focused on middle Eocene. latter still holds challenges for climate modellers is also key to understanding events leading towards conditions needed Antarctic glaciation at Eocene–Oligocene transition. Here, we present results CMIP5-like coupled simulations using Community Earth System Model (CESM) version 1. Using a new detailed 38 Ma geography reconstruction higher model resolution compared...
Abstract. The mid-Pliocene (∼3 Ma) is one of the most recent warm periods with high CO2 concentrations in atmosphere and resulting temperatures, it often cited as an analog for near-term future climate change. Here, we apply a moisture budget analysis to investigate response large-scale hydrological cycle at low latitudes within 13-model ensemble from Pliocene Model Intercomparison Project Phase 2 (PlioMIP2). results show that increased atmospheric content (due thermodynamic effect) wetter...
Abstract. In the Pliocene Model Intercomparison Project Phase 2 (PlioMIP2), coupled climate models have been used to simulate an interglacial during mid-Piacenzian warm period (mPWP; 3.264 3.025 Ma). Here, we compare Atlantic Meridional Overturning Circulation (AMOC), poleward ocean heat transport and sea surface warming in simulated with these models. PlioMIP2, all intensified mid-Pliocene AMOC. However, there is no consistent response nor depth of overturning cell. The show a large spread...
Abstract. The mid-Pliocene warm period (3.264–3.025 Ma) is the most recent geological in which atmospheric CO2 concentration was approximately equal to we measure today (ca. 400 ppm). Sea surface temperature (SST) proxies indicate above-average warming over North Atlantic with respect pre-industrial period, may be linked an intensified Meridional Overturning Circulation (AMOC). Earlier results from Pliocene Model Intercomparison Project Phase 2 (PlioMIP2) show that ensemble simulates a...
Abstract. We present the Utrecht contribution to Pliocene Model Intercomparison Project Phase 2 (PlioMIP2), using Community Earth System version 1.0.5 (CCSM4-Utr). Using a standard pre-industrial configuration and enhanced PlioMIP2 set of boundary conditions, we perform simulations at various levels atmospheric pCO2 (280, 400, 560 ppm). This allows us make an assessment mid-Pliocene reference (Eoi400) climate versus available proxy records control (E280), as well determine sensitivity...
Abstract. The mid-Pliocene warm period (3.264–3.025 Ma) is the most recent geological during which atmospheric CO2 levels were similar to historical values (∼400 ppm). Several proxy reconstructions for show highly reduced zonal sea surface temperature (SST) gradients in tropical Pacific Ocean, indicating an El Niño-like mean state. However, past modelling studies do not these gradients. Efforts understand climate dynamics have led Pliocene Model Intercomparison Project (PlioMIP). Results...
Abstract. The Eocene–Oligocene transition (EOT) is marked by a sudden δ18O excursion occurring in two distinct phases approximately 500 kyr apart. These signal shift from the warm middle to late Eocene greenhouse climate cooler conditions, with global surface air temperatures decreasing 3–5 °C and emergence of first continent-wide Antarctic ice sheet (AIS). While modelling suggests that growth can be triggered declining pCO2, it remains unclear how this was initiated, particularly phase...
Abstract. Post-tropical cyclones can have substantial impacts on regions unaccustomed to such powerful storms. Previous studies found that the prevalence of storms is expected increase in future. Hurricane Ophelia October 2017 presents a potential future analogue, reaching major hurricane strength far beyond current climatological boundaries and affecting Ireland as post-tropical cyclone. Here, we look at changes structure, behavior, between possible climate scenarios, with focus...
Oceanic mesoscale eddy mixing plays a crucial role in the Earth’s climate system by redistributing heat, salt and carbon. Eddy is impacted various physical factors, one of which oceanic bottom slope. Within barotropic framework, it can be shown analytically that slopes suppress cross-slope mixing. Unfortunately, adding baroclinic effects greatly increases complexity problem. To understand how influence we study fields quasi-geostrophic two-layer model with linear We investigate...
Abstract. The quasi-stationary behaviour of atmospheric blocking is studied using a Lagrangian framework that enables the tracking blocks in space and time. By combining index based on geopotential height with algorithm, we investigate characteristics events for different zonal velocities respect to Earth's surface their impacts temperatures within retuned EC-Earth3 global climate model. We observe can portray large variety velocities. Distinct differences are found between eastward-moving...