A5085392938- Climate variability and models
- Oceanographic and Atmospheric Processes
- Tropical and Extratropical Cyclones Research
- Methane Hydrates and Related Phenomena
- Ocean Acidification Effects and Responses
- Geological and Tectonic Studies in Latin America
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Geophysics and Gravity Measurements
- Ocean Waves and Remote Sensing
ARC Centre of Excellence for Climate System Science
2022-2025
Monash University
2022-2025
Australian Regenerative Medicine Institute
2022-2024
Indian Institute of Technology Bhubaneswar
2022
This study is focused on analysing the phase space dynamics of El Niño-Southern Oscillation (ENSO) for two different types ENSO, Eastern Pacific (EP) and Central (CP) in Coupled Model Intercomparison Project (CMIP) 5 6 model simulations. The defined by a 2-dimensional representation eastern equatorial sea surface temperature anomaly (T) thermocline depth (h). We find that h CMIP models appear to be regionally shifted east (hshift). results, when considering hshift, suggest...
Abstract The recharge oscillator (RO) is a simple mathematical model of the El Niño Southern Oscillation (ENSO). In its original form, it based on two ordinary differential equations that describe evolution equatorial Pacific sea surface temperature and oceanic heat content. These make use physical principles operate in nature: (a) air‐sea interaction loop known as Bjerknes feedback, (b) delayed feedback arising from slow response to winds within band, (c) state‐dependent stochastic forcing...
Abstract The recharge oscillator model of the El Niño Southern Oscillation (ENSO) describes ENSO dynamics as an interaction between eastern tropical Pacific sea surface temperatures ( T ) and subsurface heat content (thermocline depth; h ), defining a dynamical cycle with different phases. is often approximated on basis depth 20 °C isotherm Z ). In this study we will address how estimation affects representation dynamics. We compare phase space estimated based maximum gradient in temperature...
Abstract This study investigates the observed El Niño-Southern Oscillation (ENSO) dynamics for eastern Pacific ( EP ) and central CP events in reference to canonical ENSO T ). We use recharge oscillator (ReOsc) model concept describe phase space polar coordinate statistics, based on interaction of sea surface temperature thermocline depth h ), different types events. further look at some important statistical characteristics, such as power spectrum cross-correlation essential parameters...
The Recharge Oscillator (RO) is a simple mathematical model of the El Niño Southern Oscillation (ENSO). In its original form, it based on two ordinary differential equations that describe evolution equatorial Pacific sea surface temperature and oceanic heat content. These make use physical principles operate in nature: (i) air-sea interaction loop known as Bjerknes feedback, (ii) delayed feedback arising from slow response to near-equatorial winds, (iii) state-dependent stochastic forcing...
<title>Abstract</title> This study analyses the El Niño-Southern Oscillation (ENSO) phase space as simulated by Coupled Model Intercomparison Projects 5 and 6 (CMIP5 CMIP6) models. The ENSO describes cycle between sea surface temperature (SST) anomaly in eastern equatorial Pacific (<bold>T</bold>) mean thermocline depth (<bold>h</bold>). We find that characteristics out-of-phase cross-correlation <bold>T</bold> <bold>h</bold> is shifted to negative values CMIP models, suggesting coupling...
This study investigates the observed El-Ni&#241;o Southern Oscillation (ENSO) dynamics for eastern Pacific (EP) and central (CP) events. Here we use recharge oscillator (ReOsc) model concept to describe ENSO phase space, based on interaction of sea surface temperatures in equatorial (T) thermocline depth (h), different types We further look at some important statistical characteristics, such as power spectrum cross-correlation, essential parameters understanding ENSO. The results show...
The recharge oscillator model of the El Ni&#241;o Southern Oscillation (ENSO) describes ENSO dynamics as an interaction and oscillation between eastern tropical Pacific sea surface temperatures (T) subsurface heat content (thermocline depth; h), describing a cycle phases. h is often approximated on basis depth 20oC isotherm (Z20). In this study we will address how estimation affects representation dynamics. We compare phase space with estimated based Z20 maximum gradient in temperature...
Abstract This study investigates the observed El Niño Southern Oscillation (ENSO) dynamics for eastern Pacific ( EP ) and central CP events in reference to canonical ENSO T ). We use recharge oscillator (ReOsc) model concept describe phase space, based on interaction of sea surface temperature thermocline depth h ), different types events. further look at some important statistical characteristics, such as power spectrum cross-correlation, essential parameters understanding ENSO. The results...
Abstract The recharge oscillator model of the El Niño Southern Oscillation (ENSO) describes ENSO dynamics as an interaction and oscillation between eastern tropical Pacific sea surface temperatures ( T ) subsurface heat content (thermocline depth; h ), describing a cycle phases. is often approximated on basis depth 20 o C isotherm Z ). In this study we will address how estimation affects representation dynamics. We compare phase space with estimated based maximum gradient in temperature...