Andrew Lenton
A5041681983- Atmospheric and Environmental Gas Dynamics
- Marine and coastal ecosystems
- Ocean Acidification Effects and Responses
- Oceanographic and Atmospheric Processes
- Climate variability and models
- Climate Change and Geoengineering
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Methane Hydrates and Related Phenomena
- Marine Bivalve and Aquaculture Studies
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Marine Biology and Ecology Research
- Carbon Dioxide Capture Technologies
- CO2 Sequestration and Geologic Interactions
- Global Energy and Sustainability Research
- Climate Change Policy and Economics
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Atmospheric aerosols and clouds
- Marine and coastal plant biology
- Coastal wetland ecosystem dynamics
- Meteorological Phenomena and Simulations
- Coastal and Marine Management
- Peatlands and Wetlands Ecology
CSIRO Oceans and Atmosphere
2015-2024
Commonwealth Scientific and Industrial Research Organisation
2012-2024
University of Tasmania
2006-2023
Australian Research Council
2017-2023
Health Sciences and Nutrition
2020-2023
Australian Antarctic Division
2017-2022
Centre for Southern Hemisphere Oceans Research
2017-2022
Unitec Institute of Technology
2022
The University of Queensland
2022
Seth Research Foundation
2020
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate – “global budget” is important to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – “global budget” is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFF) are based on energy statistics cement production data, while from land use change (ELUC), mainly...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – global budget is important to better understand cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components uncertainties. CO2 from fossil fuels industry (EFF) are based on energy statistics cement production data, respectively, while land-use change (ELUC),...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – “global budget” is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify all major components budget, including uncertainties, based on combination a range data, algorithms, statistics, model estimates interpretation by broad scientific...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets a methodology quantify all major components budget, including uncertainties, based on combination range data, algorithms, statistics, model estimates interpretation by broad scientific community. We discuss...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets a methodology quantify all major components budget, including uncertainties, based on combination range data, algorithms, statistics, model estimates interpretation by broad scientific community. We discuss...
Abstract. Anthropogenic climate change is projected to lead ocean warming, acidification, deoxygenation, reductions in near-surface nutrients, and changes primary production, all of which are expected affect marine ecosystems. Here we assess projections these drivers environmental over the twenty-first century from Earth system models (ESMs) participating Coupled Model Intercomparison Project Phase 6 (CMIP6) that were forced under CMIP6 Shared Socioeconomic Pathways (SSPs). Projections...
Abstract. Results from the fully and biogeochemically coupled simulations in which CO2 increases at a rate of 1 % yr−1 (1pctCO2) its preindustrial value are analyzed to quantify magnitude carbon–concentration carbon–climate feedback parameters measure response ocean terrestrial carbon pools changes atmospheric concentration resulting change global climate, respectively. The results based on 11 comprehensive Earth system models most recent (sixth) Coupled Model Intercomparison Project (CMIP6)...
The Australian Community Climate and Earth System Simulator (ACCESS) has been extended to include land ocean carbon cycle components form an Model (ESM). current version, ACCESS-ESM1.5, mainly developed enable Australia participate in the Coupled Intercomparison Project Phase 6 (CMIP6) with ESM version. Here we describe model changes previous ACCESS-ESM1. We use 500-year pre-industrial control run highlight stability of physical climate cycle. long spin-up, negligible drift temperature small...
Abstract. The globally integrated sea–air anthropogenic carbon dioxide (CO2) flux from 1990 to 2009 is determined models and data-based approaches as part of the Regional Carbon Cycle Assessment Processes (RECCAP) project. Numerical methods include ocean inverse models, atmospheric general circulation with parameterized biogeochemistry (OBGCMs). median value different shows good agreement in average uptake. best estimate CO2 uptake for time period based on a compilation −2.0 Pg C yr−1....
Based on the 2019 assessment of Global Carbon Project, ocean took up average, 2.5+/-0.6PgCyr-1 or 23+/-5% total anthropogenic CO2 emissions over decade 2009-2018. This sink estimate is based global biogeochemical models (GOBMs) and compared to data-products surface pCO2 (partial pressure CO2) observations accounting for outgassing river-derived CO2. Here we evaluate GOBM simulations by comparing simulated observations. The are well suited quantifying carbon time-scale annual mean its...
Abstract. A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated the marine science community in 2007 with aim providing a comprehensive, regularly updated, CO2, which had subject to quality control (QC). Many additional data, not yet made public via Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from...
Abstract. The recent IPCC reports state that continued anthropogenic greenhouse gas emissions are changing the climate, threatening severe, pervasive and irreversible impacts. Slow progress in reduction to mitigate climate change is resulting increased attention what called geoengineering, engineering, or intervention – deliberate interventions counter seek either modify Earth's radiation budget remove gases such as CO2 from atmosphere. When focused on CO2, latter of these categories carbon...
Measurements show large decadal variability in the rate of [Formula: see text] accumulation atmosphere that is not driven by emissions. The decade 1990s experienced enhanced carbon relative to emissions, while 2000s, atmospheric growth slowed, even though emissions grew rapidly. These variations are natural sources and sinks due ocean terrestrial biosphere. In this study, we compare three independent methods for estimating oceanic uptake find sink could be responsible up 40% observed...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – "global budget" is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components budget uncertainties. CO2 from fossil fuels industry (EFF) are based on energy statistics cement production data, respectively, while land-use...
Abstract The current generation of Earth system models used by the United Nations to project future climate scenarios (CMIP6) relies heavily on marine biogeochemical track fate carbon absorbed into oceans. Here we compare 11 CMIP6 and find largest source inter-model uncertainty in their representation cycle is phytoplankton-specific loss rates zooplankton grazing. This over three times larger than that net primary production driven large differences prescribed grazing dynamics. We run a...
Abstract. The Southern Ocean (44–75° S) plays a critical role in the global carbon cycle, yet remains one of most poorly sampled ocean regions. Different approaches have been used to estimate sea–air CO2 fluxes this region: synthesis surface observations, biogeochemical models, and atmospheric inversions. As part RECCAP (REgional Carbon Cycle Assessment Processes) project, we combine these different quantify assess magnitude variability between 1990–2009. Using all models inversions (26),...
A biogeochemical ocean general circulation model, driven with NCEP‐R1 and observed atmospheric CO 2 history, is used to investigate quantify the role that Southern Annular Mode (SAM), identified as leading mode of climate variability, has in driving interannual variability Ocean air‐sea fluxes between 1980 2000. Our simulations show be a region decreased uptake during positive SAM phase. The induces changes 2‐month time lag explaining 42% variance total fluxes. analysis shows response...
Abstract. Analysis of the variability last 18 yr (1993–2012) a 32 run new near-global, eddy-resolving ocean general circulation model coupled with biogeochemistry is presented. Comparisons between modelled and observed mean sea level (MSL), mixed layer depth (MLD), anomaly (SLA), surface temperature (SST), {\\chla} indicate that realistic. We find some systematic errors in MLD, generally deeper than observations, which results {\\chla}, owing to strong biophysical coupling. evaluate several...
Abstract. Earth system models (ESMs) that incorporate carbon–climate feedbacks represent the present state of art in climate modelling. Here, we describe Australian Community Climate and System Simulator (ACCESS)-ESM1, which comprises atmosphere (UM7.3), land (CABLE), ocean (MOM4p1), sea-ice (CICE4.1) components with OASIS-MCT coupling, to carbon modules have been added. The model (as part CABLE) can optionally include both nitrogen phosphorous limitation on uptake. (WOMBAT, added MOM)...
Abstract. As a response to public demand for well-documented, quality controlled, publically available, global surface ocean carbon dioxide (CO2) data set, the international marine science community developed Surface Ocean CO2 Atlas (SOCAT). The first SOCAT product is collection of 6.3 million controlled from oceans and coastal seas, spanning four decades (1968–2007). gridded presented here second come project. Recognizing that some groups may have trouble working with millions measurements,...
We use a database of more than 4.4 million observations ocean pCO 2 to investigate oceanic growth rates. measurements, with corresponding sea surface temperature and salinity reconstruct alkalinity dissolved inorganic carbon understand what is driving these rates in different regions. If the rate faster (slower) atmospheric CO rate, region can be interpreted as having decreasing (increasing) uptake. Only Western subpolar subtropical North Pacific, Southern Ocean are found have sufficient...