A5011374946- Geology and Paleoclimatology Research
- Climate variability and models
- Oceanographic and Atmospheric Processes
- Methane Hydrates and Related Phenomena
- Cryospheric studies and observations
- Meteorological Phenomena and Simulations
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Tropical and Extratropical Cyclones Research
- Atmospheric and Environmental Gas Dynamics
- Pleistocene-Era Hominins and Archaeology
- Arctic and Antarctic ice dynamics
- Geophysics and Gravity Measurements
- Tree-ring climate responses
- Geological formations and processes
- Ocean Acidification Effects and Responses
- Archaeology and ancient environmental studies
- Geological Studies and Exploration
- Evolution and Paleontology Studies
- Marine and environmental studies
- Atmospheric Ozone and Climate
- Climate change and permafrost
- Paleontology and Stratigraphy of Fossils
- Landslides and related hazards
- Plant Water Relations and Carbon Dynamics
Pusan National University
2017-2025
Institute for Basic Science
2017-2025
APEC Climate Center
2022-2025
IBS Center for Climate Physics
2019-2025
Max Planck Institute for Meteorology
1998-2021
Kiel University
2002-2021
Royal Swedish Academy of Sciences
2021
Universität Hamburg
2021
University of Hawaiʻi at Mānoa
2009-2018
University of Hawaii System
2009-2018
Abstract. The responses of carbon dioxide (CO2) and other climate variables to an emission pulse CO2 into the atmosphere are often used compute Global Warming Potential (GWP) Temperature change (GTP), characterize response timescales Earth System models, build reduced-form models. In this cycle-climate model intercomparison project, which spans full hierarchy, we quantify pulses different magnitudes injected under conditions. shows known rapid decline in first few decades followed by a...
Significance Marine and terrestrial proxy records suggest global cooling during the Late Holocene, following peak warming of Holocene Thermal Maximum (∼10 to 6 ka) until rapid induced by increasing anthropogenic greenhouses gases. However, physical mechanism responsible for this has remained elusive. Here, we show that climate models simulate a robust annual mean in mainly response rising CO 2 retreat ice sheets. This model-data inconsistency demands critical reexamination both data models.
We challenge the view that our species, Homo sapiens, evolved within a single population and/or region of Africa. The chronology and physical diversity Pleistocene human fossils suggest morphologically varied populations pertaining to H. sapiens clade lived throughout Similarly, African archaeological record demonstrates polycentric origin persistence regionally distinct material culture in variety paleoecological settings. Genetic studies also indicate present-day structure Africa extends...
Abstract. The main characteristics of the new version 1.2 three-dimensional Earth system model intermediate complexity LOVECLIM are briefly described. includes representations atmosphere, ocean and sea ice, land surface (including vegetation), ice sheets, icebergs carbon cycle. atmospheric component is ECBilt2, a T21, 3-level quasi-geostrophic model. CLIO3, which consists an general circulation coupled to comprehensive thermodynamic-dynamic sea-ice Its horizontal resolution 3° by 3°, there...
Abstract The influences of a substantial weakening the Atlantic meridional overturning circulation (AMOC) on tropical Pacific climate mean state, annual cycle, and ENSO variability are studied using five different coupled general models (CGCMs). In CGCMs, AMOC is induced by adding freshwater flux forcing in northern North Atlantic. response, well-known surface temperature dipole low-latitude established, which reorganizes large-scale atmospheric increasing northeasterly trade winds. This...
Abstract. While climate change mitigation targets necessarily concern maximum mean state changes, understanding impacts and developing adaptation strategies will be largely contingent on how variability responds to increasing anthropogenic perturbations. Thus far Earth system modeling efforts have primarily focused projected changes the sensitivity of specific modes variability, such as El Niño–Southern Oscillation. However, our knowledge forced in overall spectrum higher-order statistics is...
Switching Basins Most of the densest, deepest water at bottom oceans comes from two regions, North Atlantic and circum-Antarctic. Have other regions been able to produce significant quantities deep in past? For decades, researchers have looked, with limited success, for evidence deepwater formation Pacific since time Last Glacial Maximum, about 23,000 years ago. Okazaki et al. (p. 200 ) combine published observational model simulations suggest that did form during early part Termination,...
Abstract. We present a selection of methodologies for using the palaeo-climate model component Coupled Model Intercomparison Project (Phase 5) (CMIP5) to attempt constrain future climate projections same models. The constraints arise from measures skill in hindcasting changes over three periods: Last Glacial Maximum (LGM) (21 000 yr before present, ka), mid-Holocene (MH) (6 ka) and Millennium (LM) (850–1850 CE). may be used validate robust patterns change across scenarios or distinguish...
Abstract Here we show that the characteristics of Indian Ocean Dipole (IOD), such as its power spectrum and phase relationship with El Niño–Southern Oscillation (ENSO), can be succinctly explained by ENSO combination mode (C‐mode) wind heat flux forcing together a seasonal modulation air/sea coupled (IO) Bjerknes feedback. This model explains observed high‐frequency near‐annual IOD variability in terms deterministic ENSO/annual cycle interactions. ENSO‐independent events understood...
Abstract Nonlinear interactions between ENSO and the western Pacific warm pool annual cycle generate an atmospheric combination mode (C-mode) of wind variability. The authors demonstrate that C-mode dynamics are responsible for development anomalous low-level northwest anticyclone (NWP-AC) during El Niño events. NWP-AC is embedded in a large-scale meridionally antisymmetric Indo-Pacific circulation response has been shown to exhibit large impacts on precipitation Asia. In contrast previous...