A5023048979- Tropical and Extratropical Cyclones Research
- Climate variability and models
- Meteorological Phenomena and Simulations
- Ocean Waves and Remote Sensing
- Climate change impacts on agriculture
- Solar and Space Plasma Dynamics
- Island Studies and Pacific Affairs
- Geological and Geophysical Studies
- Precipitation Measurement and Analysis
- Pelvic and Acetabular Injuries
- Earthquake Detection and Analysis
- Atmospheric Ozone and Climate
- Indigenous Studies and Ecology
- Atmospheric aerosols and clouds
- Sports injuries and prevention
- Cellular Automata and Applications
- Coastal and Marine Dynamics
- Computational Physics and Python Applications
- Ionosphere and magnetosphere dynamics
- Sport Psychology and Performance
- Climate Change Communication and Perception
- Coastal wetland ecosystem dynamics
- Geophysics and Gravity Measurements
- Opportunistic and Delay-Tolerant Networks
- Cyclone Separators and Fluid Dynamics
Commonwealth Scientific and Industrial Research Organisation
2019-2025
CSIRO Oceans and Atmosphere
2018-2024
Health Sciences and Nutrition
2019-2023
Monash University
2011-2018
Australian Research Council
2015-2017
ARC Centre of Excellence for Climate System Science
2013-2017
Auckland University of Technology
2016
Bureau of Meteorology
2009-2015
University of Leeds
2015
Columbia University
2008-2011
Helms, ER, Storey, A, Cross, MR, Browm, SR, Lenetsky, S, Ramsay, H, Dillen, C, and Zourdos, MC. RPE velocity relationships for the back squat, bench press, deadlift in powerlifters. J Strength Cond Res 31(2): 292-297, 2017-The purpose of this study was to compare average concentric (ACV) rating perceived exertion (RPE) based on repetitions reserve deadlift. Fifteen powerlifters (3 women 12 men, mean age 28.4 ± 8.5 years) worked up a one repetition maximum (1RM) each lift. Rating recorded all...
Abstract This study investigates the role of large-scale environmental factors, notably sea surface temperature (SST), low-level relative vorticity, and deep-tropospheric vertical wind shear, in interannual variability November–April tropical cyclone (TC) activity Australian region. Extensive correlation analyses were carried out between TC frequency intensity aforementioned parameters, using data for 1970–2006 from official dataset. Large correlations found seasonal number TCs SST Niño-3.4...
The statistical significance of trends in tropical cyclones (TCs) the South Indian Ocean (SIO) and Pacific (SPO) has been examined. Calculation is based on nonparametric Monte Carlo methods, addition we explore whether a constant model, linear or simple breakpoint model represents best fit to data. For 1981–1982 2006–2007 TC seasons, there are no apparent total numbers TCs (by which, this study, mean those systems attaining minimum central pressure 995 hPa lower), nor 970 SIO SPO (such being...
Abstract The effects of relative and absolute sea surface temperature (SST) on tropical cyclone potential intensity are investigated using the Massachusetts Institute Technology (MIT) single-column model. model is run in two modes: (i) radiative–convective equilibrium (RCE) to represent convective response uniform warming ocean as a homogeneous aqua planet, (ii) weak gradient (WTG) over limited area while SST outside that remains unchanged. WTG calculations taken sensitivity atmospheric...
Abstract Calibration error represents a significant source of uncertainty in quantitative applications ground-based radar (GR) reflectivity data. Correcting it requires knowledge the true at well-defined locations and times during volume scan. Previous work has demonstrated that observations from certain spaceborne (SR) platforms may be suitable for this purpose. Specifically, Ku-band precipitation radars on board Tropical Rainfall Measuring Mission (TRMM) satellite its successor, Global...
In this review, advances in the understanding of controlling factors and physical mechanisms tropical cyclogenesis (TCG) are summarized from recent (2018-2022) research on TCG, as presented Tenth International Workshop Tropical Cyclones (IWTC-10). Observational, theoretical, numerical modeling studies published years have advanced our knowledge influence large-scale environmental TCG. Furthermore, shown clearly that appropriate convective coupling with equatorial waves enhances development...
Abstract Climatological features of tropical cyclones in the South Pacific Ocean have been analyzed based on a new archive for Southern Hemisphere. A vortex tracking and statistics package is used to examine such as climatological maps system intensity change with time, average cyclone movement, density. An examination presented spatial variability these features, well changes relation phase El Niño–Southern Oscillation phenomenon. critical line defined this study describe statistical...
Abstract Tropical cyclones (TCs) can have severe impacts on Australia. These include extreme rainfall and winds, coastal hazards such as destructive waves, storm surges, estuarine flooding, erosion. Various aspects of TCs in the Australian region been documented over past several decades. In recent years, increasing emphasis has placed human‐induced climate change effects elsewhere around globe. However, large natural variability lack consistent long‐term TC observations often complicated...
Abstract The effects of stratospheric cooling and sea surface warming on tropical cyclone (TC) potential intensity (PI) are explored using an axisymmetric cloud-resolving model run to radiative–convective equilibrium (RCE). Almost all observationally constrained datasets show that the lower stratosphere has cooled over past few decades. Such may affect PI by modifying storm's outflow temperature, which together with temperature (SST) determines thermal efficiency in theory. Results near...
It has previously been suggested, based on limited observations, that vertical wind shear in the upper troposphere is a key control supercell morphology, with low-precipitation, high-precipitation, and classic archetypes favored under strong, weak, moderate shear, respectively. The idea that, increasing upper-level (ULS), hydrometeors are transported farther from updraft by stronger storm-relative anvil-level winds, limiting their growth thereby reducing precipitation intensity. present...
Abstract Plausible diagnostics for the top of tropical cyclone boundary layer include (i) strong frictional inflow and (ii) “well mixed” layer, that is, over which potential temperature θ is approximately constant. Observations show these two candidate definitions give markedly different results in practice, with being roughly twice depth nearly constant θ. Here, authors will present an analysis thermodynamics derived from axisymmetric model. The marked dry static stability upper part due...
Abstract Severe hailstorms represent some of Australia's most costly natural disasters. In particular, the densely populated east‐coast cities Brisbane and Sydney have both been impacted by events that individually produced over AU$1 billion in insured losses. this study, frequency damaging these regions is assessed an eight‐year period using single‐polarisation radar observations. Reflectivity data from multiple radars are carefully calibrated merged to produce daily grids MESH (the maximum...
Abstract Southwest Pacific nations are among some of the worst impacted and most vulnerable globally in terms tropical cyclone (TC)-induced flooding accompanying risks. This study objectively quantifies fractional contribution TCs to extreme rainfall (hereafter, TC contributions) context climate variability change. We show that contributions substantially enhanced during active phases Madden–Julian Oscillation by El Niño conditions (particularly over eastern southwest region); this...
Tropical cyclones (TCs) in the North Atlantic region are predictions for June 1-November 30 season using predictors from Atlantic, Indian and Pacific Oceans sea surface temperature anomalies. Here, aim is to reduce TC seasonal prediction errors realized by applying support vector regression (SVR) an initial predictor pool model iteratively identify additional attributes that those errors. Prediction this approach compared with existing, statistical model, developed at Colorado State...
The Australian region seasonal tropical cyclone count (TCC) maintained a robust statistical relationship with El Niño–Southern Oscillation (ENSO), skillful forecasts of above (below) average TCC during La Niña (El Niño) years from 1969 until about 1998, weakening thereafter. current study identifies an additional climate driver that mitigates the loss predictive skill for after 1998. It is found strongly modulated by southwest-to-northeast-oriented dipole in Indian Ocean sea surface...
Abstract There is currently no theory for the rate of tropical cyclone (TC) formation given a particular climate, so our understanding relationship between TC frequency and large‐scale environmental factors largely empirical. Here, we explore sensitivity intensification rates to climate warming in series highly idealized cloud‐permitting simulations, which TCs form spontaneously from base state rest on an f ‐plane. The simulations reveal nonmonotonic time taken precursor disturbance (a...
Abstract Tropical cyclones generate large waves that physically damage coral communities and are commonly cited as a worsening threat to reefs under climate change. However, beyond projections of ocean basin‐scale changes in cyclone intensity, the other determinants future reef such size duration remain uncertain. Here, we determine extent which downscaled represent observed characteristics influence wave Australian regions. We then investigate mid‐century (2040–2060) end century (2080–2100)...
Abstract Four supercell motion forecast algorithms are investigated with respect to their hodograph-analysis parameters. Another method derived from the data presented herein, so-called offset method, is used develop a baseline standard for aforementioned schemes, using observed storm motions and mean wind. It not scheme, as it based on knowing motions. This work explores sensitivity of these arbitrary parameters by systematically varying those parameters, dataset 394 right-moving...
Abstract The interaction between complex terrain and a landfalling tropical cyclone (TC) over northeastern Australia is investigated using the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5). Severe TC Larry (in March 2006) made landfall an area of steep coastal orography caused extensive damage. damage pattern suggested that mountainous had large influence on wind field, with highly variable across relatively small...
Abstract This study examines combining ENSO sea surface temperature (SST) regions for seasonal prediction of Coral Sea tropical cyclone (TC) frequency. The averages ~4 TCs per season, but is characterized by strong interannual variability, with 1–9 over the period 1977–2012. A wavelet analysis confirms that a key contributor to TC count (TCC) variability. Motivated impact El Niño Modoki on regional climate anomalies, suite 38 linear models constructed and assessed its ability predict TCC....