A5016580542- Tropical and Extratropical Cyclones Research
- Climate variability and models
- Meteorological Phenomena and Simulations
- Geology and Paleoclimatology Research
- Ocean Waves and Remote Sensing
- Karst Systems and Hydrogeology
- Polar Research and Ecology
- Astro and Planetary Science
- Microbial Community Ecology and Physiology
- Pleistocene-Era Hominins and Archaeology
- Diatoms and Algae Research
- Atmospheric and Environmental Gas Dynamics
- Geological formations and processes
- Marine and coastal ecosystems
- Archaeology and ancient environmental studies
- Oceanographic and Atmospheric Processes
- Geological and Geochemical Analysis
- Geographic Information Systems Studies
- Music Technology and Sound Studies
- Space Science and Extraterrestrial Life
- Protist diversity and phylogeny
- 3D Modeling in Geospatial Applications
- Isotope Analysis in Ecology
- Geological Modeling and Analysis
- Groundwater and Isotope Geochemistry
University of Reading
2019-2024
National Centre for Atmospheric Science
2019-2024
National Oceanic and Atmospheric Administration
2022
NOAA National Centers for Environmental Information
2022
NOAA Geophysical Fluid Dynamics Laboratory
2022
Princeton University
2022
Durham University
2014-2015
University of Sheffield
2013-2015
Leonardo (United Kingdom)
2015
Abstract. The Coupled Model Intercomparison Project phase 6 (CMIP6) HighResMIP is a new experimental design for global climate model simulations that aims to assess the impact of horizontal resolution on simulation fidelity. We describe hierarchy coupled resolutions based Hadley Centre Global Environment 3 – vn 3.1 (HadGEM3-GC3.1) ranges from an atmosphere–ocean 130 km–1∘ 25 km–1∕12∘, all using same forcings and initial conditions. In order make such high-resolution possible, experiments...
Abstract Finer grids in global climate models could lead to an improvement the simulation of precipitation extremes. We assess influence on model performance increasing spatial resolution by evaluating pairs high‐ and low‐resolution forced atmospheric simulations from six (generally latest CMIP6 version) a common 1° × grid. The differences tuning between lower higher versions are as limited possible, which allows be assessed exclusively. focus 1985–2014 climatology annual extremes daily over...
Abstract East Asian summer monsoon (EASM) rainfall impacts the world's most populous regions. Accurate EASM prediction necessitates robust paleoclimate reconstructions from proxy data and quantitative linkage to modern climatic conditions. Many precisely dated oxygen isotope records Chinese stalagmites have been interpreted as directly reflecting past amount variability, but recent research suggests that such instead integrate multiple hydroclimatic processes. Using a Lagrangian...
Abstract Recently, much attention has been devoted to better understand the internal modes of variability climate system. This is particularly important in mid-latitude regions like North-Atlantic, which characterized by a large natural and intrinsically difficult predict. A suitable framework for studying atmospheric circulation look recurrent patterns, commonly referred as Weather Regimes. Each regime specific large-scale pattern, thus influencing regional weather extremes over Europe. The...
Abstract Tropical cyclone rapid intensification events often cause destructive hurricane landfalls because they are associated with the strongest storms and forecasts highest errors. Multi-decade observational datasets of tropical behavior have recently enabled documentation upward trends in several basins. However, a robust anthropogenic signal global physical drivers yet to be identified. To address these knowledge gaps, here we compare observed environmental parameters simulated natural...
Abstract Starting to resolve the oceanic mesoscale in climate models is a step change model fidelity. This study examines how certain obstinate biases midlatitude North Atlantic respond increasing resolution (from 1° 0.25° ocean) and such sea surface temperature (SST) affect atmosphere. Using multimodel ensemble of historical simulations run at different horizontal resolutions, it shown that severe cold SST bias central Atlantic, common many ocean models, significantly reduced with...
Abstract. The Next Generation of Earth Modeling Systems (nextGEMS) project aimed to produce multi-decadal climate simulations, for the first time, with resolved kilometer-scale (km-scale) processes in ocean, land, and atmosphere. In only three years, nextGEMS achieved this milestone two km-scale system models, ICOsahedral Non-hydrostatic model (ICON) Integrated Forecasting System coupled Finite-volumE Sea ice-Ocean Model (IFS-FESOM). was based on cornerstones: 1) developing models small...
Abstract Post‐tropical cyclones (PTCs) extend many hazards associated with tropical (TCs) to the midlatitudes. Despite recent high‐impact cases affecting Europe such as Ophelia, little research has been done characterize risk of PTCs. Here we compare climatologies and intensity distributions midlatitude (MLCs) PTCs in North Atlantic by tracking ERA5 reanalysis. Considering hurricane season impacting Northern Europe, show a significantly higher mean maximum than MLCs, but make only small...
Abstract Tropical cyclones undergo extratropical transition (ET) in every ocean basin. Projected changes ET frequency under climate change are uncertain and differ between basins, so multimodel studies required to establish confidence. We used a feature-tracking algorithm identify tropical performed cyclone phase-space analysis an ensemble of atmosphere-only fully coupled global model simulations, run at various resolutions historical (1950–2014) future (2015–50) forcing. Historical...
Abstract Wintertime midlatitude cyclone activity and precipitation are projected to increase across northern Europe decrease over southern Europe, particularly the western Mediterranean. Greater confidence in these regional projections may be established by their replication state-of-the-art, high-resolution global climate models that resolve synoptic-scale dynamics. We evaluated representation of wintertime eddy-driven subtropical jet streams, extratropical activity, North Atlantic under...
Abstract North Atlantic tropical and post‐tropical cyclones impact midlatitude regions, but the inhomogeneous observational record of latter stages precludes many climatological analyses. The frequency tropical‐origin storms basin‐wide is projected to increase under anthropogenic climate change, so establishing confidence in our knowledge their historical variability lifecycles—against which model simulations may be evaluated—is important. We used a Lagrangian feature‐tracking algorithm...
Abstract Recurving tropical cyclones (TCs) can cause extensive damage along the U.S. East Coast and later in their life cycle over Europe as post-tropical cyclones. While existing literature attempts to understand drivers of basinwide regional TC variability, less work has been undertaken looking at recurving TCs. The roles played by interannual variabilities frequency steering flow governing variability are investigated this study. Using a track-matching algorithm, we identify observed...
Abstract. CMIP6 HighResMIP is a new experimental design for global climate model simulations that aims to assess the impact of horizontal resolution on simulation fidelity. We describe hierarchy coupled resolutions based HadGEM3-GC3.1 range from an atmosphere-ocean 130 km-1° 25 km-1/12°, all using same forcings and initial conditions. In order make such high possible, experiments have short 30 year spinup, followed by at least century-long with both constant forcing (to drift focus this...
Abstract Post-tropical cyclones (PTCs) can bring high winds and extreme precipitation to Europe. Although the structure intensity of observed Europe-impacting PTCs has been investigated in previous studies, a quantitative understanding factors important for reach Europe not established. By tracking identifying full life cycle tropical (TCs) ERA5 reanalysis, we investigate why some impact others do not, using composite analysis. We show that are typically ∼4–6 m s −1 stronger at their...
Abstract The physical processes governing a tropical cyclone's lifecycle are largely understood, but key occur at scales below those resolved by global climate models. Increased resolution may help simulate realistic cyclone intensification. We examined fully coupled, storm‐resolving models run resolutions in the range 28–2.8 km atmosphere and 28–5 ocean. Simulated activity, peak intensity, intensification rate, horizontal wind structure all more of ∼5 compared with coarser resolutions....
Abstract. Post-tropical cyclones (PTCs) can cause extensive damage across Europe through extreme winds and heavy precipitation. With increasing sea surface temperatures, tropical (TCs) may form travel further poleward eastward than observed historically. Recent work has suggested that the frequency of intense Europe-impacting PTCs increase substantially in future. Using an objective feature-tracking scheme TC identification method, we track identify full life cycle TCs North Atlantic five...
The Venus sextile Mars is a positive aspect and people in this are naturally attractive, charismatic charming. Energetic, full of enthusiasm pleasant easily win everyone’s heart. If you want to know all about the aspect, read on. Ready? Let’s get started… Sextile In ... <a title="Venus Natal Charts, Composite Charts & Synastry" class="read-more" href="https://journalofcosmology.com/venus-sextile-mars/" aria-label="More on Synastry">Read more</a>
&lt;p&gt;Tropical cyclone (TC) rapid intensification events are responsible for intensity forecasts with the highest errors, and hurricanes that rapidly intensify cause a disproportionate amount of fatalities damage from TCs. According to recent study by Bhatia et al. (2019), natural variability cannot account (1982-2009), observed increase in TC rates Atlantic Basin. These results agree well main conclusions (2018), which demonstrated climate change could significantly worldwide end...
Abstract This research assesses the influences of Atlantic Multidecadal Variability (AMV) on global tropical cyclones (TCs) using two large ensembles idealized climate model simulations with opposite signs AMV forcings superimposed (i.e., AMV+ and AMV–). We first detect TCs then compare TC activity by basin in experiments. find contrasting responses Pacific frequency to anomalies. Compared AMV–, significantly increases North Atlantic, including those making landfalls. The increase is...