Daniel P. Harrison
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View article: Measurement report: Aerosol vertical profiling over the Southern Great Barrier Reef using lidar and MAX-DOAS measurements
Measurement report: Aerosol vertical profiling over the Southern Great Barrier Reef using lidar and MAX-DOAS measurements Open
Aerosol vertical profile measurements were made using a Multi-Axis Differential Optical Absorption Spectrometer (MAX-DOAS) and Mini Micro Pulse Lidar (MPL) at One Tree Island in the Southern Great Barrier Reef from February to April 2023. …
View article: A photophysiological model of coral bleaching simulates declines and recovery during an emulated multi-doldrum marine heatwave event
A photophysiological model of coral bleaching simulates declines and recovery during an emulated multi-doldrum marine heatwave event Open
Mass coral bleaching events have become increasingly frequent since the 1980s as sea surface temperatures have risen. Extremes of light and temperature stress leading to coral bleaching can develop when doldrum meteorological conditions oc…
View article: Measurement report: Aerosol and cloud nuclei properties along the Central and Northern Great Barrier Reef – impact of continental emissions
Measurement report: Aerosol and cloud nuclei properties along the Central and Northern Great Barrier Reef – impact of continental emissions Open
The frequency of coral bleaching events increased during the past decade in the Great Barrier Reef (GBR) due to climate change, and rising ocean temperatures. Recent work has demonstrated that enhancing local-scale cloud albedo can reduce …
View article: Trade wind regimes during the Great Barrier Reef coral bleaching season
Trade wind regimes during the Great Barrier Reef coral bleaching season Open
The trade winds over the Great Barrier Reef (GBR) dominate the local weather in the region, bringing cooler and drier air over the Reef, which promotes ocean cooling. The absence of the trade winds is often marked by periods of weaker wind…
View article: Ship fuel sulfur content regulations may exacerbate mass coral bleaching events on the Great Barrier Reef
Ship fuel sulfur content regulations may exacerbate mass coral bleaching events on the Great Barrier Reef Open
Climate change is increasing the frequency of mass coral bleaching events at Australia’s Great Barrier Reef (GBR), but its sensitivity to changing atmospheric aerosol levels is not well understood. Global shipping fuel sulfur content regul…
View article: First generation outdoor marine cloud brightening trial increases aerosol concentration at cloud base height
First generation outdoor marine cloud brightening trial increases aerosol concentration at cloud base height Open
Regional scale marine cloud brightening (MCB) has been proposed as a novel climate intervention to reduce the impact of global warming and associated marine heatwaves on the Great Barrier Reef. The concept relies on artificially generated …
View article: Measurement report: Aerosol and cloud nuclei properties along the Central and Northern Great Barrier Reef: Impact of continental emissions
Measurement report: Aerosol and cloud nuclei properties along the Central and Northern Great Barrier Reef: Impact of continental emissions Open
The frequency of coral bleaching events increased during the past decade in the Great Barrier Reef due to climate change, and rising ocean temperatures. Recent work has demonstrated that enhancing local-scale cloud albedo can reduce the se…
View article: The role of Rossby wave breaking in coral bleaching on the Great Barrier Reef
The role of Rossby wave breaking in coral bleaching on the Great Barrier Reef Open
The frequencies of thermal coral bleaching events (CBEs) over the Great Barrier Reef (GBR) continue to increase with five mass CBEs reported since 2016. While changes in the local meteorology, such as reduced wind speeds and decreased clou…
View article: A review of plume dispersion and measurement techniques applicable to marine cloud brightening
A review of plume dispersion and measurement techniques applicable to marine cloud brightening Open
Rising sea surface temperatures are causing more frequent and intense coral bleaching events, threatening the long-term survival of coral reefs globally. Marine Cloud Brightening (MCB) is a proposed intervention that could be applied globa…
View article: A photophysiological model of coral bleaching under light and temperature stress: experimental assessment
A photophysiological model of coral bleaching under light and temperature stress: experimental assessment Open
Marine heatwaves occurring against the backdrop of rising global sea surface temperatures have triggered mass coral bleaching and mortality. Irradiance is critical to coral growth but is also an implicating factor in photodamage, leading t…
View article: The Central Great Barrier Reef as a Net Source of Climatically Relevant Biogenic Volatile Organic Compounds
The Central Great Barrier Reef as a Net Source of Climatically Relevant Biogenic Volatile Organic Compounds Open
Biogenic volatile organic compounds (BVOCs) such as dimethyl sulfide (DMS), methanethiol (MeSH), isoprene, and monoterpenes partly control the Earth's radiation budget. As such, measuring coral‐reef BVOC emissions are important for underst…
View article: Effervescent nozzle design to enable outdoor marine cloud brightening experimentation
Effervescent nozzle design to enable outdoor marine cloud brightening experimentation Open
Marine Cloud Brightening (MCB) is a proposed solar radiation management technique whereby the albedo of low-lying clouds is artificially enhanced by the addition of Cloud Condensation Nuclei (CCN).
View article: Governing marine cloud brightening for ecosystem conservation under a warming climate
Governing marine cloud brightening for ecosystem conservation under a warming climate Open
Marine Cloud Brightening (MCB) is an emerging technology designed to mitigate the impacts of climate change by increasing the reflectivity of low-lying marine clouds. As research into this technology advances, the question of how to govern…
View article: The meteorological drivers of mass coral bleaching on the central Great Barrier Reef during the 2022 La Niña
The meteorological drivers of mass coral bleaching on the central Great Barrier Reef during the 2022 La Niña Open
The frequencies of marine heatwaves and thermal coral bleaching events (CBEs) over the Great Barrier Reef (GBR) continue to increase with five mass CBEs reported since 2016. While changes in the local meteorology, such as reduced wind spee…
View article: Boundary layer height above the Great Barrier Reef studied using drone and Mini-Micropulse LiDAR measurements
Boundary layer height above the Great Barrier Reef studied using drone and Mini-Micropulse LiDAR measurements Open
The planetary boundary layer height (PBLH) is an important meteorological feature defining the boundary between surface processes and the free troposphere. The PBLH plays a key role in cloud formation and the vertical extent of aerosols an…
View article: Shading responses are species-specific in thermally stressed corals
Shading responses are species-specific in thermally stressed corals Open
Light is critical to coral growth through endosymbiont photosynthesis but can also act with elevated temperatures to cause coral bleaching. When more light is absorbed than can be used for photosynthesis, elevated irradiance can damage sym…
View article: Measurement report: Aerosol vertical profiling over the Southern Great Barrier Reef using lidar and MAX-DOAS measurements
Measurement report: Aerosol vertical profiling over the Southern Great Barrier Reef using lidar and MAX-DOAS measurements Open
Aerosol vertical profile measurements were made using multi-axis differential optical absorption spectroscopy (MAX-DOAS) and mini-Micropulse LiDAR (MPL) at One Tree Island in the Southern Great Barrier Reef from February to April 2023. Thi…
View article: Drone-Based Measurement of the Size Distribution and Concentration of Marine Aerosols above the Great Barrier Reef
Drone-Based Measurement of the Size Distribution and Concentration of Marine Aerosols above the Great Barrier Reef Open
Marine aerosol particles can act as cloud condensation nuclei and influence the atmospheric boundary layer by scattering solar radiation. The interaction of ocean waves and coral reefs may affect the distribution and size of marine aerosol…
View article: Interactions between trade wind clouds and local forcings over the Great Barrier Reef: a case study using convection-permitting simulations
Interactions between trade wind clouds and local forcings over the Great Barrier Reef: a case study using convection-permitting simulations Open
Trade wind clouds are ubiquitous across the subtropical oceans, including the Great Barrier Reef (GBR), playing an important role in modulating the regional energy budget. These shallow clouds, however, are by their nature sensitive to per…
View article: Interactions of warm cloud, precipitation, and local forcings over the Great Barrier Reef: Insights from convection-permitting simulations
Interactions of warm cloud, precipitation, and local forcings over the Great Barrier Reef: Insights from convection-permitting simulations Open
The important role of warm clouds in regulating the regional energy balance and ocean temperature, that are directly linked to the thermal coral bleaching events, has been increasingly recognised over the Great Barrier Reef (GBR). These sh…
View article: Combining shading and lipid-enriched diets as an adaption tool to reduce coral bleaching
Combining shading and lipid-enriched diets as an adaption tool to reduce coral bleaching Open
Mass coral bleaching driven by climate change impacts coral reefs globally. As net zero emissions and a return to pre-industrial global temperatures are unlikely to occur in the near future, there is an urgent need to engineer intervention…