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2023

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Atmospheric Meteorological Effects On Forecasting Daily Lightning Occurrence At Cape Canaveral Space Force Station, Jon Saul, Torrey J. Wagner, Eric G. Mbonimpa, Brent T. Langhals Jan 2023

Atmospheric Meteorological Effects On Forecasting Daily Lightning Occurrence At Cape Canaveral Space Force Station, Jon Saul, Torrey J. Wagner, Eric G. Mbonimpa, Brent T. Langhals

Faculty Publications

As the Cape Canaveral Space Force Station and Kennedy Space Center increase their launch rate, any process that could assist in the automation of the currently-manual lightning forecast would be valuable. This work examines the possibility of machine-learning assistance with the daily lighting forecast which is produced by the 45th Weather Squadron. A dataset consisting of 34 lightning, pressure, temperature and windspeed measurements taken from 334 daily weather balloon (rawinsonde) launches in the timeframe 2012-2021 was examined. Models were created using recursive feature elimination on logistic regression and XGClassifier algorithms, as well as Bayesian and bandit optimization of neural network …


Nitrite Cycling In The Primary Nitrite Maxima Of The Eastern Tropical North Pacific, Nicole M. Travis, Colette L. Kelly, Margaret R. Mulholland, Karen L. Casciotti Jan 2023

Nitrite Cycling In The Primary Nitrite Maxima Of The Eastern Tropical North Pacific, Nicole M. Travis, Colette L. Kelly, Margaret R. Mulholland, Karen L. Casciotti

OES Faculty Publications

The primary nitrite maximum (PNM) is a ubiquitous feature of the upper ocean, where nitrite accumulates in a sharp peak at the base of the euphotic zone. This feature is situated where many chemical and hydrographic properties have strong gradients and the activities of several microbial processes overlap. Near the PNM, four major microbial processes are active in nitrite cycling: ammonia oxidation, nitrite oxidation, nitrate reduction and nitrite uptake. The first two processes are mediated by the nitrifying archaeal/bacterial community, while the second two processes are primarily conducted by phytoplankton. The overlapping spatial habitats and substrate requirements for these microbes …


Biophysical Interactions Control The Progression Of Harmful Algal Blooms In Chesapeake Bay: A Novel Lagrangian Particle Tracking Model With Mixotrophic Growth And Vertical Migration, Jilian Xiong, Jian Shen, Qubin Qin, Michelle C. Tomlinson, Yinglong J. Zhang, Xun Cai, Fei Yi, Linlin Cui, Margaret R. Mulholland Jan 2023

Biophysical Interactions Control The Progression Of Harmful Algal Blooms In Chesapeake Bay: A Novel Lagrangian Particle Tracking Model With Mixotrophic Growth And Vertical Migration, Jilian Xiong, Jian Shen, Qubin Qin, Michelle C. Tomlinson, Yinglong J. Zhang, Xun Cai, Fei Yi, Linlin Cui, Margaret R. Mulholland

OES Faculty Publications

Climate change and nutrient pollution contribute to the expanding global footprint of harmful algal blooms. To better predict their spatial distributions and disentangle biophysical controls, a novel Lagrangian particle tracking and biological (LPT-Bio) model was developed with a high-resolution numerical model and remote sensing. The LPT-Bio model integrates the advantages of Lagrangian and Eulerian approaches by explicitly simulating algal bloom dynamics, algal biomass change, and diel vertical migrations along predicted trajectories. The model successfully captured the intensity and extent of the 2020 Margalefidinium polykrikoides bloom in the lower Chesapeake Bay and resolved fine-scale structures of bloom patchiness, demonstrating a reliable …


Providing A Framework For Seagrass Mapping In United States Coastal Ecosystems Using High Spatial Resolution Satellite Imagery, Megan M. Coffer, David D. Graybill, Peter J. Whitman, Blake A. Schaeffer, Wilson B. Salls, Richard C. Zimmerman, Victoria Hill, Marie Cindy Lebrasse, Jiang Li, Darryl J. Keith, James Kaldy, Phil Colarusso, Gary Raulerson, David Ward, W. Judson Kenworthy Jan 2023

Providing A Framework For Seagrass Mapping In United States Coastal Ecosystems Using High Spatial Resolution Satellite Imagery, Megan M. Coffer, David D. Graybill, Peter J. Whitman, Blake A. Schaeffer, Wilson B. Salls, Richard C. Zimmerman, Victoria Hill, Marie Cindy Lebrasse, Jiang Li, Darryl J. Keith, James Kaldy, Phil Colarusso, Gary Raulerson, David Ward, W. Judson Kenworthy

OES Faculty Publications

Seagrasses have been widely recognized for their ecosystem services, but traditional seagrass monitoring approaches emphasizing ground and aerial observations are costly, time-consuming, and lack standardization across datasets. This study leveraged satellite imagery from Maxar's WorldView-2 and WorldView-3 high spatial resolution, commercial satellite platforms to provide a consistent classification approach for monitoring seagrass at eleven study areas across the continental United States, representing geographically, ecologically, and climatically diverse regions. A single satellite image was selected at each of the eleven study areas to correspond temporally to reference data representing seagrass coverage and was classified into four general classes: land, seagrass, no …


The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity, Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane Jan 2023

The Importance Of Winter Dinoflagellate Blooms In Chesapeake Bay— A Missing Link In Bay Productivity, Nicole C. Millette, Sophie Clayton, Margaret R. Mulholland, Leah Gibala-Smith, Michael Lane

OES Faculty Publications

It is widely assumed that phytoplankton abundance and productivity decline during temperate winters because of low irradiance and temperatures. However, winter phytoplankton blooms commonly occur in temperate estuaries, but they are often undocumented because of reduced water quality monitoring in winter. The small body of in situ work that has been done on winter blooms suggests they can be of enormous consequence to ecosystems. However, because monitoring is often reduced or stopped altogether during winter, it is unclear how widespread these blooms are or how long they can last. We analyzed an over 30-year record of monthly phytoplankton monitoring samples …


Potential Interactions Between Diatoms And Bacteria Are Shaped By Trace Element Gradients In The Southern Ocean, Alexa R. Sterling, Laura Z. Holland, Randelle M. Bundy, Shannon M. Burns, Kristen N. Buck, P. Dreux Chappell, Bethany D. Jenkins Jan 2023

Potential Interactions Between Diatoms And Bacteria Are Shaped By Trace Element Gradients In The Southern Ocean, Alexa R. Sterling, Laura Z. Holland, Randelle M. Bundy, Shannon M. Burns, Kristen N. Buck, P. Dreux Chappell, Bethany D. Jenkins

OES Faculty Publications

The growth of diatoms in the Southern Ocean, especially the region surrounding the West Antarctic Peninsula, is frequently constrained by low dissolved iron and other trace metal concentrations. This challenge may be overcome by mutualisms between diatoms and co-occurring associated bacteria, in which diatoms produce organic carbon as a substrate for bacterial growth, and bacteria produce siderophores, metal-binding ligands that can supply diatoms with metals upon uptake as well as other useful secondary compounds for diatom growth like vitamins. To examine the relationships between diatoms and bacteria in the plankton (diatom) size class (> 3 mu m), we sampled both …


Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams Jan 2023

Atmospheric Input And Seasonal Inventory Of Dissolved Iron In The Sargasso Sea: Implications For Iron Dynamics In Surface Waters Of The Subtropical Ocean, Peter N. Sedwick, Bettina M. Sohst, K. N. Buck, S. Caprara, R. J. Johnson, D. C. Ohnemus, L. E. Sofen, A. Tagliabue, B. S. Twining, Tara E. Williams

OES Faculty Publications

Constraining the role of dust deposition in regulating the concentration of the essential micronutrient iron in surface ocean waters requires knowledge of the flux of seawater-soluble iron in aerosols and the replacement time of dissolved iron (DFe) in the euphotic zone. Here we estimate these quantities using seasonally resolved DFe data from the Bermuda Atlantic Time-series Study region and weekly-scale measurements of iron in aerosols and rain from Bermuda during 2019. In response to seasonal changes in vertical mixing, primary production and dust deposition, surface DFe concentrations vary from ∼0.2 nM in early spring to >1 nM in late summer, …


Isotopic Evidence For Sources Of Dissolved Carbon And The Role Of Organic Matter Respiration In The Fraser River Basin, Canada, Britta M. Voss, Timothy I. Eglinton, Bernhard Peucker-Ehrenbrink, Valier Galy, Susan Q. Lang, Cameron Mcintyre, Robert G.M. Spencer, Ekaterina Bulygina, Zhaohui Aleck Wang, Katherine A. Guay Jan 2023

Isotopic Evidence For Sources Of Dissolved Carbon And The Role Of Organic Matter Respiration In The Fraser River Basin, Canada, Britta M. Voss, Timothy I. Eglinton, Bernhard Peucker-Ehrenbrink, Valier Galy, Susan Q. Lang, Cameron Mcintyre, Robert G.M. Spencer, Ekaterina Bulygina, Zhaohui Aleck Wang, Katherine A. Guay

OES Faculty Publications

Sources of dissolved and particulate carbon to the Fraser River system vary significantly in space and time. Tributaries in the northern interior of the basin consistently deliver higher concentrations of dissolved organic carbon (DOC) to the main stem than other tributaries. Based on samples collected near the Fraser River mouth throughout 2013, the radiocarbon age of DOC exported from the Fraser River does not change significantly across seasons despite a spike in DOC concentration during the freshet, suggesting modulation of heterogeneous upstream chemical and isotopic signals during transit through the river basin. Dissolved inorganic carbon (DIC) concentrations are highest in …


A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives, Angela M. Kuhn, Matthew Mazloff, Stephanie Dutkiewicz, Oliver Jahn, Sophie Clayton, Tatiana Rynearson, Andrew D. Barton Jan 2023

A Global Comparison Of Marine Chlorophyll Variability Observed In Eulerian And Lagrangian Perspectives, Angela M. Kuhn, Matthew Mazloff, Stephanie Dutkiewicz, Oliver Jahn, Sophie Clayton, Tatiana Rynearson, Andrew D. Barton

OES Faculty Publications

The California Current System is a diatom‐dominated region characterized by seasonal coastal upwelling and additional elevated mesoscale activity. Cyclonic mesoscale eddies in the region trap productive coastal waters with their planktonic communities and transport them offshore with limited interaction with surrounding waters, effectively acting as natural mesocosms, where phytoplankton populations undergo ecological succession as eddies age. This study examines diatom community composition within two mesoscale cyclonic eddies that formed in the same region of the California Current System 2 months apart and in the California Current waters surrounding them. The diatom communities were analyzed in the context of shifting environmental …


Impact Of Atmospheric Correction On Classification And Quantification Of Seagrass Density From Worldview-2 Imagery, Victoria J. Hill, Richard C. Zimmerman, Paul Bissett, David Kohler, Blake Schaeffer, Megan Coffer, Jiang Li, Kazi Aminul Islam Jan 2023

Impact Of Atmospheric Correction On Classification And Quantification Of Seagrass Density From Worldview-2 Imagery, Victoria J. Hill, Richard C. Zimmerman, Paul Bissett, David Kohler, Blake Schaeffer, Megan Coffer, Jiang Li, Kazi Aminul Islam

OES Faculty Publications

Mapping the seagrass distribution and density in the underwater landscape can improve global Blue Carbon estimates. However, atmospheric absorption and scattering introduce errors in space-based sensors’ retrieval of sea surface reflectance, affecting seagrass presence, density, and above-ground carbon (AGCseagrass) estimates. This study assessed atmospheric correction’s impact on mapping seagrass using WorldView-2 satellite imagery from Saint Joseph Bay, Saint George Sound, and Keaton Beach in Florida, USA. Coincident in situ measurements of water-leaving radiance (Lw), optical properties, and seagrass leaf area index (LAI) were collected. Seagrass classification and the retrieval of LAI were compared after empirical line …


Global Oceanic Diazotroph Database Version 2 And Elevated Estimate Of Global N2 Fixation, Zhibo Shao, Yangchun Xu, Hua Wang, Weicheng Luo, Lice Wang, Yuhong Huang, Nona Sheila R. Agawin, Ayaz Ahmed, Mar Benavides, Mikkel Bentzon-Tilia, Ilana Berman-Frank, Hugo Berthelot, Isabelle C. Biegala, Mariana B. Bif, Antonio Bode, Sophie Bonnet, Deborah A. Bronk, Mark V. Brown, Lisa Campbell, Ya-Wei Luo Jan 2023

Global Oceanic Diazotroph Database Version 2 And Elevated Estimate Of Global N2 Fixation, Zhibo Shao, Yangchun Xu, Hua Wang, Weicheng Luo, Lice Wang, Yuhong Huang, Nona Sheila R. Agawin, Ayaz Ahmed, Mar Benavides, Mikkel Bentzon-Tilia, Ilana Berman-Frank, Hugo Berthelot, Isabelle C. Biegala, Mariana B. Bif, Antonio Bode, Sophie Bonnet, Deborah A. Bronk, Mark V. Brown, Lisa Campbell, Ya-Wei Luo

OES Faculty Publications

Marine diazotrophs convert dinitrogen (N2) gas into bioavailable nitrogen (N), supporting life in the global ocean. In 2012, the first version of the global oceanic diazotroph database (version 1) was published. Here, we present an updated version of the database (version 2), significantly increasing the number of in situ diazotrophic measurements from 13 565 to 55 286. Data points for N2 fixation rates, diazotrophic cell abundance, and nifH gene copy abundance have increased by 184 %, 86 %, and 809 %, respectively. Version 2 includes two new data sheets for the nifH gene copy abundance of non-cyanobacterial …


Sea Ice Formation, Glacial Melt And The Solubility Pump Boundary Conditions In The Ross Sea, Brice Loose, Sharon Stammerjohn, Peter Sedwick, Stephen Ackley Jan 2023

Sea Ice Formation, Glacial Melt And The Solubility Pump Boundary Conditions In The Ross Sea, Brice Loose, Sharon Stammerjohn, Peter Sedwick, Stephen Ackley

OES Faculty Publications

Seasonal formation of Dense Shelf Water (DSW) in the Ross Sea is a direct precursor to Antarctic Bottom Water, which fills the deep ocean with atmospheric gases in what composes the southern limb of the solubility pump. Measurements of seawater noble gas concentrations during katabatic wind events in two Ross Sea polynyas reveal the physical processes that determine the boundary value properties for DSW. This decomposition reveals 5–6 g kg−1 of glacial meltwater in DSW and sea-ice production rates of up to 14 m yr−1 within the Terra Nova Bay polynya. Despite winds upwards of 35 m s …


Acidification Of Northeastern Usa Lakes From Rising Anthropogenic-Sourced Atmospheric Carbon Dioxide And Its Effects On Aluminum Speciation, Karen H. Johannesson, Jaxon Dii Horne, Anant Misra, Catherine Aliperta, Orpheus V. Meletis, Robert C. Santore, Christopher D. White, Georgia Mavrommati, David J. Burdige Jan 2023

Acidification Of Northeastern Usa Lakes From Rising Anthropogenic-Sourced Atmospheric Carbon Dioxide And Its Effects On Aluminum Speciation, Karen H. Johannesson, Jaxon Dii Horne, Anant Misra, Catherine Aliperta, Orpheus V. Meletis, Robert C. Santore, Christopher D. White, Georgia Mavrommati, David J. Burdige

OES Faculty Publications

The impact of rising atmospheric CO2 (pCO2atm) from anthropogenic activities on pH, dissolved inorganic carbon, carbonate mineral saturation, and aluminum (Al) speciation is evaluated for 18 northeastern USA lakes using polythermal, sliding activity reaction path models. pCO2atm was forced using two scenarios from the IPCC's Sixth Assessment Report in which pCO2atm attains either 600 or 1,100 ppm in 2,100. Results suggest pH will decrease 0.15 and 0.32 pH units, aCO2-3 will decrease 24% and 49%, and Ωaragonite will decrease 21% and 45%, respectively. These changes are of the same …


Carbonate Chemistry And Carbon Sequestation Driven By Inorganic Carbon Outwelling From Mangroves And Saltmarshes, Gloria M. S. Reithmaier, Alex Cabral, Anirban Akhand, Matthew J. Bogard, Alberto V. Borges, Steven Bouillon, David J. Burdige, Mitchell Call, Nengwang Chen, Xiaogang Chen, Luiz C. Cotovicz Jr., Meagan J. Eagle, Erik Kristensen, Kevin D. Kroeger, Zeyang Lu, Damien T. Maher, J. Lucas Pérez-Lloréns, Raghab Ray, Pierre Taillardat, Joseph J. Tamborski, Rob C. Upstill-Goddard, Faming Wang, Zhaohui Aleck Wang, Kai Xiao, Yvonne Y.Y. Yau, Isaac R. Santos Jan 2023

Carbonate Chemistry And Carbon Sequestation Driven By Inorganic Carbon Outwelling From Mangroves And Saltmarshes, Gloria M. S. Reithmaier, Alex Cabral, Anirban Akhand, Matthew J. Bogard, Alberto V. Borges, Steven Bouillon, David J. Burdige, Mitchell Call, Nengwang Chen, Xiaogang Chen, Luiz C. Cotovicz Jr., Meagan J. Eagle, Erik Kristensen, Kevin D. Kroeger, Zeyang Lu, Damien T. Maher, J. Lucas Pérez-Lloréns, Raghab Ray, Pierre Taillardat, Joseph J. Tamborski, Rob C. Upstill-Goddard, Faming Wang, Zhaohui Aleck Wang, Kai Xiao, Yvonne Y.Y. Yau, Isaac R. Santos

OES Faculty Publications

Mangroves and saltmarshes are biogeochemical hotspots storing carbon in sediments and in the ocean following lateral carbon export (outwelling). Coastal seawater pH is modified by both uptake of anthropogenic carbon dioxide and natural biogeochemical processes, e.g., wetland inputs. Here, we investigate how mangroves and saltmarshes influence coastal carbonate chemistry and quantify the contribution of alkalinity and dissolved inorganic carbon (DIC) outwelling to blue carbon budgets. Observations from 45 mangroves and 16 saltmarshes worldwide revealed that >70% of intertidal wetlands export more DIC than alkalinity, potentially decreasing the pH of coastal waters. Porewater-derived DIC outwelling (81 ± 47 mmol m−2 …


Efficient Recognition And Closed Reduction Of Locked Lateral Patella Dislocation, Justin Aflatooni, Scott D Mckay Jan 2023

Efficient Recognition And Closed Reduction Of Locked Lateral Patella Dislocation, Justin Aflatooni, Scott D Mckay

Faculty, Staff and Students Publications

Patellar dislocation is not an uncommon injury in the general population that can often be managed in the emergency room with a closed reduction. However, rarely, the patella can become impacted on the lateral femoral condyle and become resistant to closed reduction techniques, which is known as a locked patellar dislocation. This injury is reported in the literature as requiring advanced imaging with a costly workup, operative intervention, or extensive manipulation under general anesthesia, and, to our knowledge, has never been documented to be closed reduced outside the operating room. In this report, we present a 17-year-old male with a …


Incidence Of Injury And Illness Among Paediatric Team Usa Athletes Competing In The 2020 Tokyo And 2022 Beijing Olympic And Paralympic Games, Eric G Post, Travis Anderson, Jeffrey S Shilt, Eric L Dugan, Stephanie C Clark, Emily G Larson, Kayle E Noble-Taylor, David M Robinson, Amber T Donaldson, Jonathan T Finnoff, William M Adams Jan 2023

Incidence Of Injury And Illness Among Paediatric Team Usa Athletes Competing In The 2020 Tokyo And 2022 Beijing Olympic And Paralympic Games, Eric G Post, Travis Anderson, Jeffrey S Shilt, Eric L Dugan, Stephanie C Clark, Emily G Larson, Kayle E Noble-Taylor, David M Robinson, Amber T Donaldson, Jonathan T Finnoff, William M Adams

Faculty, Staff and Students Publications

OBJECTIVE: To describe the incidence of injuries and illnesses among paediatric Team USA athletes competing in the Tokyo 2020 Olympic and Paralympic Games, and the 2022 Beijing Olympic and Paralympic Games.

METHODS: An electronic medical record system documented all injuries and illnesses that occurred while competing in the four Games periods. Incidence (IR) with 95% CI per 1000 athlete days were calculated for both injuries and illnesses. Incidence rate ratios (IRR) were calculated to compare injury and illness rates based on age (paediatric vs non-paediatric) sex, Games period and sport type.

RESULTS: Two hundred paediatric athletes (age range, 15-21 years) …


The Effect Of Multi-Material Architecture On The Ex Vivo Osteochondral Integration Of Bioprinted Constructs, Matthew L Bedell, Ziwen Wang, Katie J Hogan, Angelica L Torres, Hannah A Pearce, Letitia K Chim, K Jane Grande-Allen, Antonios G Mikos Jan 2023

The Effect Of Multi-Material Architecture On The Ex Vivo Osteochondral Integration Of Bioprinted Constructs, Matthew L Bedell, Ziwen Wang, Katie J Hogan, Angelica L Torres, Hannah A Pearce, Letitia K Chim, K Jane Grande-Allen, Antonios G Mikos

Faculty, Staff and Students Publications

Extrusion bioprinted constructs for osteochondral tissue engineering were fabricated to study the effect of multi-material architecture on encapsulated human mesenchymal stem cells’ tissue-specific matrix deposition and integration into an ex vivo porcine osteochondral explant model. Two extrusion fiber architecture groups with differing transition regions and degrees of bone- and cartilage-like bioink mixing were employed. The gradient fiber (G-Fib) architecture group showed an increase in chondral integration over time, 18.5 ± 0.7 kPa on Day 21 compared to 9.6 ± 1.6 kPa on Day 1 for the required peak push-out force, and the segmented fiber (S-Fib) architecture group did not, which …


Seas Blue - The Iki Ses Project Se Asian Blue Carbon, Paul Lavery, Anna Lafratta Jan 2023

Seas Blue - The Iki Ses Project Se Asian Blue Carbon, Paul Lavery, Anna Lafratta

Research Datasets

The data set contains seagrass soil carbon (blue carbon) characteristics for four sites in each of Thailand (Trang), Malaysia (Johor and Penang) and The Philippines (Roxas), and for six sites in Indonesia (North Minahasa and Sangihe Island). For each site, four seagrass cores (100 cm long) were collected and then sliced at 1 cm intervals for the top 5 cm and for 5 cm intervals thereafter. Every slice was analysed for dry bulk density and Loss on Ignition (Organic Matter). Approximately 26 slices per core were analysed for Organic Carbon (elemental analysis). The data set provides the location coordinates for …


School Psychologists’ Perspectives On The Impact Of Clinical Practice On Their Personal Lives, Nantha Priya Ramu Jan 2023

School Psychologists’ Perspectives On The Impact Of Clinical Practice On Their Personal Lives, Nantha Priya Ramu

Research Datasets

School psychologists in WA completed an online survey which included demographic information and a perception survey which asked them questions relating to their emotional states in the last 6 months, if they felt work impacted their personal relationships and communication, some factors that contributed to wellbeing, self-care practices and organisational practices for school psychologists' wellbeing.


Accuracy Of Spectral Indices Assessing Fire Severity Utilizing Maximum And Minimum Pixel Values, Jarrad Mckercher, David Blake, Eddie Van Etten Jan 2023

Accuracy Of Spectral Indices Assessing Fire Severity Utilizing Maximum And Minimum Pixel Values, Jarrad Mckercher, David Blake, Eddie Van Etten

Research Datasets

This data set contains all Spectral Indices created using Google Earth Engine through Google Collaborate. 16 Spectral Indices were created that utilise different image collection and pixel value parameters to map the burn severity of the 2021 Wooroloo Bushfire.


Seagrass Soils Sequester The Equivalent Of Up To Half The Metal Emissions By One Of The World’S Largest Smelters, Anna Lafratta, Oscar Serrano, Pere Masque´, Milena Fernandes, Sam Gaylard, Paul S. Lavery Jan 2023

Seagrass Soils Sequester The Equivalent Of Up To Half The Metal Emissions By One Of The World’S Largest Smelters, Anna Lafratta, Oscar Serrano, Pere Masque´, Milena Fernandes, Sam Gaylard, Paul S. Lavery

Research Datasets

The database compiles published data (in Lafratta et al. 2023, Marine Pollution Bulletin) on physical, biogeochemical and chemical characteristics (coordinates, cm compressed and decompressed, dry weight (DW), dry bulk density (DBD), Pb, Zn and Cd concentrations analysed at Edith Cowan University (ECU), Pb, Zn and Cd concentrations analysed at University Autonoma of Barcelona (UAB), final Pb, Zn and Cd concentrations, organic carbon content (%), < 63 µm sediment particles content (%) and Pb isotopes ratio) of soils underneath Posidonia australis seagrass meadows in Port Pirie, South Australia. Cumulative dry mass, total and excess Pb-210 concentrations are also included. The dataset includes data for a total of twelve cores (PP1, PP2, PP3, PP4, PP5, …


Law Enforcement Recruit Health Database, Myles C. Murphy, Simone Radavelli-Bagatini, Garth Allen, Nicolas Hart, Andrea Mosler Jan 2023

Law Enforcement Recruit Health Database, Myles C. Murphy, Simone Radavelli-Bagatini, Garth Allen, Nicolas Hart, Andrea Mosler

Research Datasets

Our study established clear demographic, mental health/physical injury, and physical performance data to be collected in a law enforcement recruit training program for injury surveillance and performance monitoring. Furthermore, we identified several items that were classified as relevant, but unlikely to be reported truthfully. These items which can help inform current practice and assist clinicians to determine the trustfulness of information received by patients when working within law enforcement environments.


A Dlt Based Trust Framework For Iot Ecosystems, Tharindu Ranathunga Jan 2023

A Dlt Based Trust Framework For Iot Ecosystems, Tharindu Ranathunga

Theses

In the last ten years, the Internet of Things (IoT) has experienced significant growth and has become a critical aspect of digital transformation across various industries such as healthcare, manufacturing, energy and society more broadly. IoT systems are now integrated across these verticals, creating ecosystems supporting data-driven decision-making and autonomous processes. These ecosystems consist of IoT network components, network services, and network participants such as organisations, consumers, governments, and businesses. They need to be built on the principles of the next-generation internet, which is viewed as being highly adaptive and resilient, trustworthy, sustainable, open and human-centric. The provision of Trust …


Understanding Coastal Change From Noisy Satellite-Derived Shoreline Datasets: Influence Of Tide And Runup Correction And Spatial Averaging, B Castelle, V Marieu, A Ritz, G Masselink, Tim Scott, C Stokes, A Konstantinou, An Lerma, M Vandenhove, S Bujan Jan 2023

Understanding Coastal Change From Noisy Satellite-Derived Shoreline Datasets: Influence Of Tide And Runup Correction And Spatial Averaging, B Castelle, V Marieu, A Ritz, G Masselink, Tim Scott, C Stokes, A Konstantinou, An Lerma, M Vandenhove, S Bujan

School of Biological and Marine Sciences

Free-of-charge publicly available optical satellite imagery can now be used to provide short-term to multi-decadal shoreline satellite-derived shoreline(SDS) data, with errors typically under 10 m on microtidal beaches. However, SDSaccuracy dramatically worsens at high-energy and/or meso to macrotidal lowgradient beaches, which challenges a robust assessment of shoreline variability and trends. In this contribution we demonstrate that, on such beaches, water level (tide + runup) correction and/or an adapted space-averaging of uncorrected (noisy) SDS dataset can substantially reduce uncertainties and thus allow addressing the timeand space variability of shoreline change and their primary drivers.


Coastal Typologies To Support Coastal Change Adaptation Management: A Study Of The South West Coast Of England, Ja Kirby, G Masselink, T Poate, T Scott Jan 2023

Coastal Typologies To Support Coastal Change Adaptation Management: A Study Of The South West Coast Of England, Ja Kirby, G Masselink, T Poate, T Scott

School of Biological and Marine Sciences

Sea-level rise, increased coastal erosion and flooding due to climate change is threatening coastal communities across the world. Globally, coastal change management policies include zonation of the coast to restrict development in areas susceptible to coastal change. Defining the extent of the coastal change area can be problematic and is often done using large-scale (>1 km) coastal classifications and estimates of coastal retreat. In this study, we investigate the south west coast of England, using a high-resolution (0.1 km) coastal classification to determine coastal types and their response to sea-level rise. Nine coastal typologies were defined in the study …


Comparison Of Toxicity Of Silver Nanomaterials And Silver Nitrate On Developing Zebrafish Embryos: Bioavailability, Osmoregulatory And Oxidative Stress, Spp Pereira, D Boyle, Aja Nogueira, Rd Handy Jan 2023

Comparison Of Toxicity Of Silver Nanomaterials And Silver Nitrate On Developing Zebrafish Embryos: Bioavailability, Osmoregulatory And Oxidative Stress, Spp Pereira, D Boyle, Aja Nogueira, Rd Handy

School of Biological and Marine Sciences

The mechanisms of toxicity of engineered nanomaterials (ENMs) to the early life stages of freshwater fish, and the relative hazard compared to dissolved metals, is only partially understood. In the present study, zebrafish (Danio rerio) embryos were exposed to lethal concentrations of silver nitrate (AgNO3) or silver (Ag) ENMs (primary size 42.5 ± 10.2 nm). The 96 h-LC50 for AgNO3 was 32.8 ± 0.72 μg Ag L-1 (mean ± 95% CI) compared to 6.5 ± 0.4 mg L-1 of the whole material for Ag ENMs; with the ENMs being orders of magnitude less toxic than the metal salt. The EC50 …


Ocean Acidification Has A Strong Effect On Communities Living On Plastic In Mesocosms, X Zhang, P Zhang, Zichao Deng, Ruiping Huang, D Zhang, Yang Tian, N Wang, He Li, X Wang, Xiaowen Jiang, Jiazhen Sun, Qianqian Fu, Xiangqi Yi, Liming Qu, Cong Zhou, Yuming Rao, Xiaorong Zeng, Jm Hall‐Spencer, G Gao, K Gao, Xin Lin Jan 2023

Ocean Acidification Has A Strong Effect On Communities Living On Plastic In Mesocosms, X Zhang, P Zhang, Zichao Deng, Ruiping Huang, D Zhang, Yang Tian, N Wang, He Li, X Wang, Xiaowen Jiang, Jiazhen Sun, Qianqian Fu, Xiangqi Yi, Liming Qu, Cong Zhou, Yuming Rao, Xiaorong Zeng, Jm Hall‐Spencer, G Gao, K Gao, Xin Lin

School of Biological and Marine Sciences

We conducted a mesocosm experiment to examine how ocean acidification (OA) affects communities of prokaryotes and eukaryotes growing on single-use drinking bottles in subtropical eutrophic waters of the East China Sea. Based on 16S rDNA gene sequencing, simulated high CO2 significantly altered the prokaryotic community, with the relative abundance of the phylum Planctomycetota increasing by 49%. Under high CO2, prokaryotes in the plastisphere had enhanced nitrogen dissimilation and ureolysis, raising the possibility that OA may modify nutrient cycling in subtropical eutrophic waters. The relative abundance of pathogenic and animal parasite bacteria also increased under simulated high CO2. Our results show …


Economic Trade-Offs In Marine Resource Use Between Offshore Wind Farms And Fisheries In Scottish Waters, Yang Qu, J. Kim Swales, Tara Hooper, Melanie C. Austen, Xinhao Wang, Eleni Papathanasopoulou, Junling Huang, Xiaoyu Yan Jan 2023

Economic Trade-Offs In Marine Resource Use Between Offshore Wind Farms And Fisheries In Scottish Waters, Yang Qu, J. Kim Swales, Tara Hooper, Melanie C. Austen, Xinhao Wang, Eleni Papathanasopoulou, Junling Huang, Xiaoyu Yan

School of Biological and Marine Sciences

The rapid expansion of offshore wind farms (OWFs) has prompted growing concerns about the extent to which competition over the marine resource causes trade-offs within the energy-food nexus. Reflecting this concern, the paper develops a novel marine resource allocation module which augments a computable general equilibrium (CGE) model, calibrated on Scottish data. This allows simulations with varying degrees of differential productivity of the marine resource across alternative uses. Simulation results with the model show that increasing OWFs can impose substantial negative impacts on seafood supply. Extensive analysis is undertaken to test the sensitivity of the model results to changes in …


Development Of A Computable General Equilibrium Model Based On Integrated Macroeconomic Framework For Ocean Multi-Use Between Offshore Wind Farms And Fishing Activities In Scotland, Yang Qu, Tara Hooper, Melanie C. Austen, Eleni Papathanasopoulou, Junling Huang, Xiaoyu Yan Jan 2023

Development Of A Computable General Equilibrium Model Based On Integrated Macroeconomic Framework For Ocean Multi-Use Between Offshore Wind Farms And Fishing Activities In Scotland, Yang Qu, Tara Hooper, Melanie C. Austen, Eleni Papathanasopoulou, Junling Huang, Xiaoyu Yan

School of Biological and Marine Sciences

The rapid development of offshore wind farms (OWFs) has raised concerns about the increasing conflicts and synergies with existing marine activities, especially the traditional fishery industry, from socioeconomic and environmental perspectives. Quantifying the conflicts and synergies require frameworks that can consider environment and economic systems simultaneously. This study builds on and extends a well-established computable general equilibrium (CGE) model to incorporate a natural capital and ecosystem service into the modelling framework, enabling a comprehensive analysis of the two-way interactions between the economy and natural environment. Our results suggest that expansion of OWFs has significant negative impacts on the seafood sectors, …


Broad-Scale Benthic Habitat Classification Of The South Atlantic, Kirsty A. Mcquaid, Amelia E.H. Bridges, Kerry L. Howell, Tiago B.R. Gandra, Vitor De Souza, Jock C. Currie, Oliver T. Hogg, Tabitha R.R. Pearman, James B. Bell, Lara J. Atkinson, Diane Baum, Jarbas Bonetti, Alvar Carranza, Omar Defeo, Thomas Furey, Maria A. Gasalla, Neil Golding, Shannon L. Hampton, Sebastián Horta, Daniel O.B. Jones, Amanda T. Lombard, Eleonora Manca, Yamandú Marin, Stephanie Martin, Pål Mortensen, Cecilia Passadore, Nils Piechaud, Kerry J. Sink, Andrew Yool Jan 2023

Broad-Scale Benthic Habitat Classification Of The South Atlantic, Kirsty A. Mcquaid, Amelia E.H. Bridges, Kerry L. Howell, Tiago B.R. Gandra, Vitor De Souza, Jock C. Currie, Oliver T. Hogg, Tabitha R.R. Pearman, James B. Bell, Lara J. Atkinson, Diane Baum, Jarbas Bonetti, Alvar Carranza, Omar Defeo, Thomas Furey, Maria A. Gasalla, Neil Golding, Shannon L. Hampton, Sebastián Horta, Daniel O.B. Jones, Amanda T. Lombard, Eleonora Manca, Yamandú Marin, Stephanie Martin, Pål Mortensen, Cecilia Passadore, Nils Piechaud, Kerry J. Sink, Andrew Yool

School of Biological and Marine Sciences

Marine Spatial Planning (MSP) has become a priority for many states wanting to develop national blue economy plans and meet international obligations in response to the increasing cumulative impacts of human activities and climate change. In areas beyond national jurisdiction (ABNJ), MSP is proposed as part of a package of solutions for multi-sectoral management at the ocean basin scale. To facilitate planning, maps showing the spatial distribution of marine biological diversity are required. In areas lacking data, like the South Atlantic, environmental proxies can be used to predict these distributions. We undertook broad-scale benthic habitat classification of the South Atlantic, …