A5015726257- Climate variability and models
- Ecosystem dynamics and resilience
- Meteorological Phenomena and Simulations
- Environmental Education and Sustainability
- Nonlinear Dynamics and Pattern Formation
- Climate Change, Adaptation, Migration
- Sustainability in Higher Education
- Plant and animal studies
- Education and Critical Thinking Development
- Educational Strategies and Epistemologies
- Sustainability and Climate Change Governance
- Service-Learning and Community Engagement
- Land Use and Ecosystem Services
- Economic and Environmental Valuation
- Geology and Paleoclimatology Research
- Geophysics and Gravity Measurements
- Numerical methods for differential equations
- Complex Systems and Decision Making
- Climate Change Communication and Perception
- Advanced Thermodynamics and Statistical Mechanics
- Complex Systems and Time Series Analysis
- Conservation, Biodiversity, and Resource Management
- Animal Ecology and Behavior Studies
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
CSIRO Oceans and Atmosphere
2019-2024
University of Tasmania
2024
Health Sciences and Nutrition
2024
Commonwealth Scientific and Industrial Research Organisation
2024
University of Exeter
2018-2021
Furman University
2014-2021
University of Nebraska–Lincoln
2008-2012
Boston College
2006
Climate change is conventionally recognised as a large-scale issue resolved through regional or national policy initiatives. However, little research has been done to directly evaluate local climate action plans. This study examines 40 recently adopted plans in the US and analyses how well they recognise concepts of prepare for mitigation adaptation. The results indicate that have high level 'awareness', moderate 'analysis capabilities' change, relatively limited 'action approaches'...
Although higher education understands the need to develop critical thinkers, it has not lived up task consistently. Students are graduating deficient in these skills, unprepared think critically once workforce. Limited development of cognitive processing skills leads less effective leaders. Various definitions thinking examined a general construct guide discussion as is linked constructivism, leadership, and education. Most pedagogy content‐based built on deep knowledge. Successful moving...
The Atlantic Meridional Overturning Circulation (AMOC) transports substantial amounts of heat into the North sector, and hence is very high importance in regional climate projections. AMOC has been observed to show multi-stability across a range models different complexity. simplest find bifurcation associated with `on' state losing stability that saddle node. Here we study physically derived global oceanic model Wood {\em et al} five boxes, calibrated runs FAMOUS coupled atmosphere-ocean...
Place attachment research can shed light on how farmers form relationships with their land and therefore have implications for landscape management food systems.Unknown is develop place attachment.In this qualitative study, we examine psychological physical experiences as antecedents to using theory.Following 29 semi-structured interviews 34 respondents in Upcountry South Carolina, examined farmers' security-seeking exploration behaviors.Farmers receive security through feelings of peace...
Abstract
Abstract This study explores the dynamics of a simple mechanical oscillator involving magnet on spring constrained to an axis; this is additionally subject attractive force from second magnet, which placed parallel offset axis. The moments both magnets remain aligned. first analysed in isolation for unforced situation static and its position taken as parameter. We find codimension-1 saddle-node bifurcations, well codimension-2 cusp bifurcation. system has region bistability increases size...
Abstract Predicting the occurrence of coherent blocking structures in synoptic weather systems remains a challenging problem that has taxed numerical prediction community for decades. The underlying factor behind this difficulty is so‐called “loss hyperbolicity” known to be linked with alignment dynamical vectors characterizing growth and decay flow instabilities. We introduce measures utilize close link between hyperbolicity, Lyapunov vectors, their associated rates characterize dynamics...
Models incorporating delay have been frequently used to understand climate variability phenomena, but often the is introduced through an ad hoc physical reasoning, such as propagation time of waves. In this paper, Mori-Zwanzig formalism a way systematically derive models from systems partial differential equations and hence provides better justification for using these delay-type models. The technique gives formal rewriting system projection onto set resolved variables, where rewritten...
The Mid-Pleistocene Transition (MPT), the shift from 41- to 100-kyr glacial–interglacial cycles that occurred roughly 1 Myr ago, is often considered as a change in internal climate dynamics. Here, we revisit model of Quaternary dynamics was proposed by Saltzman and Maasch ('Carbon cycle instability cause late Pleistocene ice age oscillations: modelling asymmetric response'. Glob Biogeochem Cycle 1988; 2: 177–185—from this point, referred SM88). We show it quantitatively similar scalar...
Abstract The CSIRO Climate retrospective Analysis and Forecast Ensemble system: version 1 (CAFE60v1) provides a large (96 member) ensemble analysis of the global climate system from 1960 to present with sufficiently many realizations at spatio-temporal resolutions suitable enable probabilistic studies. Using variant Kalman filter, 96 state estimates are generated over most recent six decades. These constrained by monthly mean ocean, atmosphere sea ice observations such that their...
It is known that the widely studied Bray–Liebhafsky reaction typically exhibits complex chemical behaviour. Numerous mathematical systems have been proposed to describe iodine oscillations occur during this process. Recently, a four-variable model of has and analytical numerical investigations suggested chaotic solutions may exist. We revisit here perform what appears be first detailed work on system. suggest perhaps not after all. Informed by these fresh insights, we propose reduced...
Purpose – The purpose of this paper is to examine how well local planners have recognized the issues surrounding climate change, analysis that jurisdictions conducted on and policies been implemented address change. Design/methodology/approach This study a mail questionnaire survey for 214 counties ' planning directors in USA received 53 effective responses. examined prepared including awareness, scope, implementation strategy. Findings descriptive results indicate who responded had...
Abstract. The basis and challenge of strongly coupled data assimilation (CDA) is the accurate representation cross-domain covariances between various subsystems with disparate spatio-temporal scales, where often one or more are unobserved. In this study, we explore strong CDA using ensemble Kalman filtering methods applied to a conceptual multiscale chaotic model consisting three Lorenz attractors. We introduce use local attractor dimension (i.e. Kaplan–Yorke dimension, dimKY) prescribe rank...
Future decision makers in natural resource fields will be required to make judgments on issues that lack clear solutions and with information complicated by ethical challenges. Therefore, resource, environmental, agricultural professionals must possess the ability think critically about consequences of policy, economic systems, individual human behaviors environment. To ensure future can examine competing claims, university students develop critical thinking skills allow them surrounding We...
This qualitative study offers a novel exploration of the links between social media, virtual intergroup contact, and empathy by examining how is expressed through interactions on popular media blog. Global leaders are encouraging individuals to engage in behaviors support policies that provide basic foundations. It difficult motivate people undertake such actions. However, research shows intensifies motivation help others. can cause see world from perspective stigmatized group members...
Singular vectors (SVs) have long been employed in the initialization of ensemble numerical weather prediction (NWP) order to capture structural organization and growth rates those perturbations or "errors" associated with initial condition errors instability processes large scale flow. Due their (super) exponential spatial scales, SVs are typically combined empirically evolved generate forecast whose structures tuned for specified lead-times. Here, we present a systematic approach generating...
The dynamics of the North Atlantic Oscillation (NAO) are analyzed through a data-driven model obtained from atmospheric reanalysis data. We apply regularized vector autoregressive clustering technique to identify recurrent and persistent states circulation patterns in sector (110W-0E, 20N-90N). In order analyze associated with resulting cluster-based models, we define time-dependent linear delayed map switching sequence set priori by cluster affiliations at each time step. Using method for...
We present a study of delay differential equation (DDE) model for the Mid-Pleistocene Transition (MPT). investigate behavior when subjected to periodic forcing. The unforced has bistable region consisting stable equilibrium along with large-amplitude orbit. how forcing affects solutions in this region. Forcing based on astronomical data causes sudden transition time and under increase amplitude, moving response from non-MPT regime an MPT regime. Similar is found A bifurcation analysis shows...
Abstract The dynamics of the North Atlantic Oscillation (NAO) are analyzed through a data-driven model obtained from atmospheric reanalysis data. We apply regularized vector autoregressive clustering technique to identify recurrent and persistent states circulation patterns in sector (110°W-0°E, 20°N-90°N). In order analyze associated with resulting cluster-based models, we define time-dependent linear delayed map switching sequence set priori by cluster affiliations at each time step. Using...