A5081593672- Climate variability and models
- Meteorological Phenomena and Simulations
- Arctic and Antarctic ice dynamics
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
- Atmospheric and Environmental Gas Dynamics
- Crustacean biology and ecology
- Climate change and permafrost
- Atmospheric Ozone and Climate
- Marine and fisheries research
- Cryospheric studies and observations
- Marine Ecology and Invasive Species
- Marine Biology and Ecology Research
- Parasite Biology and Host Interactions
- Plant Water Relations and Carbon Dynamics
- Radiomics and Machine Learning in Medical Imaging
- Medical Imaging Techniques and Applications
- Irrigation Practices and Water Management
- Geological Studies and Exploration
- Geophysics and Gravity Measurements
- Hydrology and Drought Analysis
- Coral and Marine Ecosystems Studies
- Ocean Waves and Remote Sensing
- Methane Hydrates and Related Phenomena
- Fish Biology and Ecology Studies
Kyushu University
2020-2025
Kowa (Japan)
2025
University of Tokyo Hospital
2023
The University of Tokyo
2011-2020
Center for High Pressure Science and Technology Advanced Research
2017-2020
San Raffaele University of Rome
2018
Kōchi University
2008-2016
Sphere Institute
2011-2016
Kyoto University
2016
Marche Polytechnic University
2015
Abstract. The sixth version of the Model for Interdisciplinary Research on Climate (MIROC), called MIROC6, was cooperatively developed by a Japanese modeling community. In present paper, simulated mean climate, internal climate variability, and sensitivity in MIROC6 are evaluated briefly summarized comparison with previous our model (MIROC5) observations. results show that overall reproducibility variability is better than MIROC5. tropical systems (e.g., summertime precipitation western...
Abstract An unprecedentedly large ensemble of climate simulations with a 60-km atmospheric general circulation model and dynamical downscaling 20-km regional has been performed to obtain probabilistic future projections low-frequency local-scale events. The the latter half twentieth century, 4 K warmer than preindustrial climate, century without historical trends associated anthropogenic effect are each simulated for more 5,000 years. From simulations, changes in extreme events available...
Attribution of extreme events is a challenging science and one that currently undergoing considerable evolution. In this paper are 19 analyses by 18 different research groups, often using quite methodologies, 12 occurred in 2012. addition to investigating the causes these events, multiple four high temperatures United States, record low levels Arctic sea ice, heavy rain northern Europe eastern Australia, provide an opportunity compare contrast strengths weaknesses various methodologies. The...
The possibility that Arctic sea ice loss weakens mid-latitude westerlies, promoting more severe cold winters, has sparked than a decade of scientific debate, with apparent support from observations but inconclusive modelling evidence. Here we show sixteen models contributing to the Polar Amplification Model Intercomparison Project simulate weakening westerlies in response projected loss. We develop an emergent constraint based on eddy feedback, which is 1.2 3 times too weak models,...
Decadal-scale climate variations over the Pacific Ocean and its surroundings are strongly related to so-called decadal oscillation (PDO) which is coherent with wintertime North America Asian monsoon, have important impacts on marine ecosystems fisheries. In a near-term prediction covering period up 2030, we require knowledge of future state internal in system such as PDO well global warming signal. We perform sets ensemble hindcast forecast experiments using coupled atmosphere-ocean model...
A prominent mode of low-frequency variability in the northern extratropical winter known as Pacific/North American (PNA) teleconnection pattern prevails not only on seasonal but also intraseasonal timescales. In this study, processes governing PNA are investigated using daily fields during 1957-2002. The results vorticity budget analysis illustrate that positive phase tends to grow by linear such barotropic energy conversion from zonally asymmetric climatological flow. For negative PNA,...
A new high-resolution atmosphere-ocean coupled general circulation model named MIROC4h has been developed, and its performance in a 120-year control experiment (including 50-year spin-up) under the present conditions (the year 1950) is examined. The results of by are compared with simulations preindustrial carried out for Intergovernmental Panel on Climate Change Fourth Assessment Report (IPCC AR4) using previous high- medium-resolution versions model, called MIROC3h MIROC3m, respectively....
Decadal climate predictability is examined in hindcast experiments by a multi-model ensemble using three versions of the coupled atmosphere-ocean model MIROC. In these experiments, initial conditions are obtained from an anomaly assimilation procedure observed oceanic temperature and salinity with prescribed natural anthropogenic forcings on basis historical data future emission scenarios Intergovernmental Panel Climate Change. Results our show that surface air (SAT) anomalies decadal...
Abstract. The sixth version of the Model for Interdisciplinary Research on Climate (MIROC), called MIROC6, was cooperatively developed by a Japanese modeling community. In present manuscript, simulated mean climate, internal climate variability, and sensitivity in MIROC6 are evaluated briefly summarized comparison with previous our model (MIROC5) observations. results show that overall reproducibility variability is better than MIROC5. tropical systems (e.g., summertime precipitation western...
This paper documents the procedure of ocean data assimilation that initializes climate models MIROC3m, MIROC4h, and MIROC5 for decadal predictions following CMIP5 protocol, summarizes performance using this assimilation. Only anomalies observed hydrographic are assimilated incremental analysis update method in order to prevent model drifts during predictions. In case which has an eddy-permitting model, a spatial smoother is used calculating increments so oceanic mesoscale eddies cannot be...
In line with the experimental design for near-term climate prediction toward 5th Assessment Report of Intergovernmental Panel on Climate Change (IPCC-AR5) and Coupled Model Intercomparison Project Phase 5 (CMIP5), we perform ensembles initialized decadal hindcast experiments using two recent versions Interdisciplinary Research On (MIROC): MIROC4h (T213L56 AGCM 1/6-1/4 deg. 48 level OGCM) MIROC5 (T85L40 0.56-1.4 50 OGCM). We analyze sets 10-yearlong 9-ensemble hindcasts (3 members by 6...
Abstract We produced 100‐member event attribution ensembles during 2009–2012 under all forcing conditions and in two different counterfactual worlds without anthropogenic (mainly greenhouse gases aerosols) aerosol emission changes using the MIROC5 atmospheric general circulation model. It seemed that both human influences sea surface temperature ( SST ) natural variability increased probabilities of 2010 severe drought South Amazon region, aerosols emissions had little effect on drought....
Abstract Decline in winter sea-ice concentration (SIC) the Barents-Kara Sea significantly impacts climate through increased heat release to atmosphere. However, past SIC decrease rate is underestimated majority of Coupled Model Intercomparison Project Phase 6 (CMIP6) models. Here we show that model simulations can reproduce trend for 1970–2017 when sea surface temperature (SST) variability Gulf Stream region constrained by observations. The warming strengthens ocean transport enhances...
A severe heat wave occurred in the southwestern United States (US) during June and July 2013. To investigate effects of natural variability anthropogenic climate change on this event, we generated large ensemble simulations possible weather using MIROC5A model forced by "historical external forcing agents, sea surface temperature (SST) observations ice (SIC) observations" both with without human influence. It was suggested that warming an atmospheric circulation regime related to SST SIC...
© 2018 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).A supplement to article is available online (10.1175/BAMS-D-17-0109.2)
Abstract The role of extratropical atmosphere-ocean coupling in generating and maintaining large-scale atmospheric low-frequency variability remains an open question owing to vigorous internal fluctuations. Here, we use coupled uncoupled large-ensemble global model simulations clarify how the intensifies teleconnection patterns Northern Hemisphere winter. We show that selectively enhances variance three principal modes variability, explaining 13%, 11%, 10% total Pacific/North American, North...
We examined possible responses of cyclone activities to the bimodal path states Kuroshio Current [i.e., large meander (LM) and non‐LM (NLM)] by using long‐term reanalysis data 20th century hindcast experiment a high‐resolution atmosphere‐ocean coupled model. Compared with seasonal mean track frequency for LM NLM periods, primary shifts southward in association Current. Composite analyses showed remarkable atmospheric accompanying LM. The causes decrease latent heat flux south Japan shift...
Abstract Predictability of El Niño–Southern Oscillation (ENSO) is examined using ensemble hindcasts made with a seasonal prediction system based on the atmosphere and ocean general circulation model, Model for Interdisciplinary Research Climate, version 5 (MIROC5). Particular attention paid to differences in predictive skill terms error two prominent types Niño: conventional eastern Pacific (EP) Niño central (CP) Niño, latter having maximum warming around date line. Although adopts anomaly...
We describe two unprecedented large (100-member), long-term (61-year) ensembles based on MRI-AGCM3.2, which were driven by historical and non-warming climate forcing. These comprise the "Database for Policy Decision making Future change (d4PDF)". compare these to another model, as well observed data, investigate influence of anthropogenic activities changes in numbers record-breaking events, including: annual coldest daily minimum temperature (TNn), warmest maximum (TXx) most intense...
Abstract Background: Conventional antibody-drug conjugates (ADCs) face significant challenges in treating solid tumors due to heterogeneous antigen expression or low levels, resulting suboptimal targeting and reduced therapeutic efficacy. While increasing the drug-to-antibody ratio (DAR) could enhance efficacy, traditional high-DAR approaches often compromise pharmacokinetics increased hydrophobicity molecular size. To address these limitations, we engineered a novel platform technology:...