A5031523965- Wind and Air Flow Studies
- Plant Water Relations and Carbon Dynamics
- Climate variability and models
- Aeolian processes and effects
- Meteorological Phenomena and Simulations
- Urban Heat Island Mitigation
- Atmospheric and Environmental Gas Dynamics
- Tree-ring climate responses
- Fluid Dynamics and Turbulent Flows
- Building Energy and Comfort Optimization
- Plant responses to elevated CO2
- Indigenous Studies and Ecology
- Climate change impacts on agriculture
- Climate change and permafrost
- Cryospheric studies and observations
- Hydrology and Watershed Management Studies
- Methane Hydrates and Related Phenomena
- Noise Effects and Management
- Forest Management and Policy
- Conservation, Biodiversity, and Resource Management
- Land Use and Ecosystem Services
- Climate Change Policy and Economics
- Aerodynamics and Fluid Dynamics Research
- Remote Sensing in Agriculture
- Sustainability and Climate Change Governance
Commonwealth Scientific and Industrial Research Organisation
2011-2024
CSIRO Oceans and Atmosphere
2011-2022
ACT Government
2017
Health Sciences and Nutrition
2015-2016
Bureau of Meteorology
2009-2014
Met Office
2010
Network Rail
2008
University of Reading
2003-2006
A new version of the Australian Community Climate and Earth System Simulator coupled model, ACCESS-CM2, has been developed for a wide range climate modelling research applications. In particular, ACCESS-CM2 is one Australia’s contributions to World Research Programme’s Coupled Model Intercomparison Project Phase 6 (CMIP6). Compared with ACCESS1.3 model used our CMIP5 submission, all components have upgraded as well coupling framework (OASIS3-MCT) experiment control system (Rose/Cylc). The...
Forest canopies are important components of the terrestrial carbon budget, which has motivated a worldwide effort, FLUXNET, to measure CO 2 exchange between forests and atmosphere. These measurements difficult interpret scale up estimate across landscape. Here we review effects complex terrain on mean flow, turbulence, scalar in canopy flows, as exemplified by adjustment forest edges hills, including stable stratification. We focus fundamental fluid mechanics, developments theory,...
Abstract. Land surface models used in climate neglect the roughness sublayer and parameterize within-canopy turbulence an ad hoc manner. We implemented a parameterization multilayer canopy model (CLM-ml v0) to test if this theory provides tractable extending from ground through sublayer. compared with Community Model (CLM4.5) at seven forest, two grassland, three cropland AmeriFlux sites over range of heights, leaf area indexes, climates. CLM4.5 has pronounced biases during summer months...
Abstract. A primary goal of Earth system modelling is to improve understanding the interactions and feedbacks between human decision making biophysical processes. The nexus land use cover change (LULCC) climate an important example. LULCC contributes global regional change, while affects functioning terrestrial ecosystems LULCC. However, at present, poorly represented in circulation models (GCMs). that are explicit about behaviour decision-making processes have been developed local scales,...
Understanding potential future influence of environmental, economic, and social drivers on land-use sustainability is critical for guiding strategic decisions that can help nations adapt to change, anticipate opportunities, cope with surprises. Using the Land-Use Trade-Offs (LUTO) model, we undertook a comprehensive, detailed, integrated, quantitative scenario analysis Australia's agricultural land from 2013–2050, under interacting global change domestic policies, considering key...
Recent progress on boundary layer flow within and above tall forest canopies in complex terrain is reviewed from the perspective of developing methods to interpret carbon dioxide fluxes tower measurements real terrain. Two examples are considered detail: a edge, which exemplifies nonuniform forests, hilly terrain, can lead drainage currents at night. Dynamical arguments show that, when winds approach mean wind adjusts length scale approximately 3 L c , where canopy drag scale, depends...
Abstract This paper describes the formulation of a new urban scheme, MORUSES (Met Office–Reading Urban Surface Exchange Scheme) for use in Met Office Unified Model. The implementation scheme ensures that (1) offers more flexibility parametrization building properties, and hence provides realistic representation fluxes; (2) bulk outputs are satisfactory agreement with previous observational studies; (3) impact on energy balance fluxes is similar to current when set up mimic it. As well as...
Abstract. CABLE is a global land surface model, which has been used extensively in offline and coupled simulations. While performs well comparison with other models, results are impacted by decoupling of transpiration photosynthesis fluxes under drying soil conditions, often leading to implausibly high water use efficiencies. Here, we present solution this problem, ensuring that modelled always consistent photosynthesis, while introducing parsimonious single-parameter drought response...
The Australian Community Climate and Earth System Simulator (ACCESS) has contributed to the World Research Programme’s Coupled Model Intercomparison Project Phase 6 (CMIP6) using two fully coupled model versions (ACCESS-CM2 ACCESS-ESM1.5) ocean–sea-ice (1° 0.25° resolution of ACCESS-OM2). models differ primarily in configuration version their atmosphere components (including aerosol scheme), with smaller differences sea-ice land versions. Additionally, ACCESS-ESM1.5 includes biogeochemistry...
Abstract A model is developed for the energy balance of an urban area, represented as a sequence two‐dimensional street canyons. The incorporates novel formulation sensible‐heat flux, that has previously been validated against wind tunnel models, and radiation includes multiple reflections shadowing. This coupled to atmospheric boundary layer. Results are analysed establish how physical processes combine produce observed features climate, roles building form fabric on modification climate....
Simple first‐order closure remains an attractive way of formulating equations for complex canopy flows when the aim is to find analytic or simple numerical solutions illustrate fundamental physical processes. Nevertheless, limitations such closures must be understood if resulting models are illuminate rather than mislead. We propose five conditions that satisfy, then test two widely used against them. The first eddy diffusivity based on a mixing length. discuss origins this approach, its use...
© 2017 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).CORRESPONDING AUTHORS: Sylvia I. Bohnenstengel, sylvia.bohnenstengel@metoffice.gov.uk; C. S. Grimmond, c.s.grimmond@reading.ac.uk
Abstract Forestation is expected to play a significant role as terrestrial carbon dioxide removal (tCDR) technology in low-emission scenarios by storing the biosphere, thereby changing physical properties of land surface. To represent use change, including afforestation and reforestation (AR), Earth system models (ESMs) that contribute Coupled Model Intercomparison Project Phase 6 (CMIP6) draw on common projected data from Integrated Assessment Models (IAMs). The extent spatial distribution...