A5091492665- Marine and coastal ecosystems
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Oceanographic and Atmospheric Processes
- Marine and fisheries research
- Atmospheric and Environmental Gas Dynamics
- Isotope Analysis in Ecology
- Methane Hydrates and Related Phenomena
- Environmental Monitoring and Data Management
- Marine Bivalve and Aquaculture Studies
- Marine and environmental studies
- Geology and Paleoclimatology Research
- Photochemistry and Electron Transfer Studies
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
- Soil and Water Nutrient Dynamics
- Analytical chemistry methods development
- Protein Interaction Studies and Fluorescence Analysis
- Analytical Chemistry and Chromatography
- Marine animal studies overview
- Radical Photochemical Reactions
- Surfactants and Colloidal Systems
- Atmospheric chemistry and aerosols
- Groundwater and Isotope Geochemistry
- Particle Accelerators and Free-Electron Lasers
National Oceanography Centre
2015-2024
European Multidisciplinary Seafloor and water column Observatory
2022
Natural Environment Research Council
2019
University of Southampton
2014-2019
Advanced Design Consulting USA (United States)
2013
Royal Danish Library
1984
Kodak (United States)
1979-1983
Carestream (United States)
1982
Abstract Since 1750, land-use change and fossil fuel combustion has led to a 46% increase in the atmospheric carbon dioxide (CO 2 ) concentrations, causing global warming with substantial societal consequences. The Paris Agreement aims limit temperature increases well below 2°C above preindustrial levels. Increasing levels of CO other greenhouse gases (GHGs), such as methane (CH 4 nitrous oxide (N O), atmosphere are primary cause climate change. Approximately half emissions sequestered by...
The oceans play a key role in global issues such as climate change, food security and human health. Given their vast dimensions internal complexity, efficient monitoring predicting of the planet's ocean must be collaborative effort both regional scale. A first foremost requirement for observing is need to follow well-defined reproducible methods across activities: from strategies structuring systems, sensor deployment usage, generation data information products, ethical governance aspects...
A carbon budget for the northwest European continental shelf seas (NWES) was synthesised using available estimates coastal, pelagic and benthic stocks flows. Key uncertainties were identified effect of future impacts on assessed. The water contains between 210 230 Tmol absorbs 1.3 3.3 from atmosphere annually. Off-shelf transport burial in sediments account 60-100% 0-40% outputs NWES, respectively. Both these fluxes remain poorly constrained by observations resolving their magnitudes...
Significance Seawater elemental composition, namely Mg:Ca and Sr:Ca ratios are widely used in marine sciences. Our new single-laboratory global dataset, combined with past data of seawater ratios, suggests that modern ocean variability is significant across different environments, being similar to the changes during Neogene Period (20 Ma). Because there large we cannot assume secular derived from fossilized taxa varied ecological niches diverse ecosystems provide an unbiased representation...
Abstract The North Atlantic is characterized by diatom-dominated spring blooms that results in significant transfer of carbon to higher trophic levels and the deep ocean. These are terminated limiting silicate concentrations summer. Numerous regional studies have demonstrated phytoplankton community shifts lightly-silicified diatoms non-silicifying plankton at onset limitation. However, understand basin-scale patterns ecosystem climate dynamics, nutrient inventories must be examined over...
A 2‐year record of mixed layer measurements CO 2 partial pressure ( p ), nitrate, and other physical, chemical, biological parameters at a time series site in the northeast Atlantic Ocean (49°N/16.5°W) is presented. The data show average undersaturation surface waters with respect to atmospheric levels by about 40 ± 15 μ atm, which gives rise perennial sink 3.2 1.3 mol m −2 −1 . seasonal cycle characterized summer minimum (winter maximum), due dominance forcing over physical forcing. Our...
Abstract The variability of total alkalinity (TA) and its relationship with salinity in the tropical subtropical surface ocean were examined using data collected various marine environments from a ship opportunity. In open regions Atlantic, Pacific, Indian Oceans, sea TA was observed to be mainly controlled by simple dilution or concentration (SDC) effect precipitation evaporation, measured concentrations agreed well those predicted temperature. Non‐SDC changes margins inland seas comparing...
Microfluidic reagent-based nutrient sensors offer a promising technology to address the global undersampling of ocean chemistry but have so far not been shown operate in deep sea (>200 m). We report new family miniaturized lab-on-chip (LOC) colorimetric analyzers making situ nitrate and phosphate measurements from surface (>4800 This gives users low-cost, high-performance tool for measuring hyperbaric environments. Using combination laboratory verification field-based tests, we demonstrate...
Abstract Hartman, S. E., Lampitt, R. S., Larkin, K. Pagnani, M., Campbell, J., Gkritzalis, T., Jiang, Z.-P., Pebody, C. A., Ruhl, H. Gooday, A. Bett, B. Billett, D. Provost, P., McLachlan, R., Turton, J. D., and Lankester, 2012. The Porcupine Abyssal Plain fixed-point sustained observatory (PAP-SO): variations trends from the Northeast Atlantic time-series. – ICES Journal of Marine Science, 69: 776–783. (PAP-SO) in (49°N 16.5°W; 4800 m) is longest running open-ocean multidisciplinary oceans...
Until the 1980s, deep sea was generally considered to be a particularly stable environment, free from major temporal variations (Sanders, 1968). Studies in abyssal northeast Atlantic by Billett et al. (1983), and subsequently Lampitt (1985) discovered seasonal pulses of surface primary production-derived particulate organic matter (phytodetritus), hence carbon, at depths. These early observations were extended central oceanic region NE (Pfannkuche, 1993; Thiel al., 1989), prompted...
The ocean is currently a significant net sink for anthropogenically remobilised CO2, taking up around 24% of global emissions. Numerical models predict diversity responses the carbon to increased atmospheric concentrations in warmer world. Here, we tested hypothesis that forcing causing change using high frequency observational dataset derived from underway pCO2 (carbon dioxide partial pressure) instruments on ships opportunity (SOO) and fixed-point mooring between 2002 2016. We calculated...
Abstract. Here we present an equation for the estimation of nitrate in surface waters North Atlantic Ocean (40° N to 52° N, 10° W 60° W). The was derived by multiple linear regression (MLR) from nitrate, sea temperature (SST) observational data and model mixed layer depth (MLD) data. were taken merchant vessels that have crossed on a regular basis 2002/2003 2005 present. It is important find robust realistic estimate MLD because deepening crucial supply surface. We compared two models (FOAM...
Continental shelf seas may have a significant role in oceanic uptake and storage of carbon dioxide (CO2) from the atmosphere through 'continental pump' mechanism. The northwest European continental shelf, particular Celtic Sea (50°N 8°W), was target extensive biogeochemical sampling March 2014 to September 2015 as part UK Shelf Biogeochemistry research programme (UK-SSB). Here, we use UK-SSB carbonate chemistry macronutrient measurements investigate seasonality this temperate, seasonally...
Abstract. In this study we present hydrography, biogeochemistry and sediment trap observations between 2003 2012 at Porcupine Abyssal Plain (PAP) sustained observatory in the Northeast Atlantic. The time series is valuable as it allows for investigation of link surface productivity deep ocean carbon flux. region a perennial sink CO2, with an average uptake around 1.5 mmol m−2 day−1. monthly drawdowns inorganic nitrogen were used to quantify net community production (NCP) new production....
Abstract. The characteristics of the CISE-LOCEAN seawater isotope dataset (δ18O, δ2H, referred to as δD) are presented (https://doi.org/10.17882/71186; Waterisotopes-CISE-LOCEAN, 2021). This covers time period from 1998 2021 and currently includes close 8000 data entries, all with δ18O, three-quarters them also δD, associated a date stamp, space usually salinity measurement. Until 2010, samples were analyzed by isotopic ratio mass spectrometry since then mostly cavity ring-down spectroscopy...
Abstract Pyrene substituents covalently bounded to polyelectrolytes show not only excited‐state interactions but also unique ground‐state in aqueous solution. The pyrene moieties pyrenesubstituted ionic molecules these when solutions of are treated with or surfactants well below their critical micelle concentrations. These hydrophobic revealed by changes absorption, fluorescence, and excitation spectra. well‐resolved vibrational bands the absorption spectra become somewhat diffuse, whereas...
A nurober of selected aspects the reciprocal interactions polymers with excited solutes or polymer-hound chromophores are given.The role free volume, glass-transition temperature (Tg), microscopic viscosity, and polarity environments to which molecules exposed is emphasized in order illustrate possible manners photophysical, photochemical, subsequent chemistries can be influenced.Many these factors affect several monomolecular bimolecular processes encountered sensitization...
Abstract Global mass balance calculations indicate the majority of particulate organic carbon (POC) exported from shelf seas is transferred via downslope exchange processes. Here we demonstrate flux POC Hebrides Shelf approximately 3‐ to 5‐fold larger per unit length/area than global mean. To reach this conclusion, quantified offshore transport and dissolved fractions “Ekman Drain,” a strong downwelling feature NW European circulation, subsequently compared these fluxes simultaneous regional...
The oceans are a fundamental source for climate balance, sustainability of resources and life on Earth, therefore society has strong pressing interest in maintaining and, where possible, restoring the health marine ecosystems. Effective, integrated ocean observation is key to suggesting actions reduce anthropogenic impact from coastal deep-sea environments address main challenges 21st century, which summarized UN Sustainable Development Goals Blue Growth strategies. European...
Abstract Marine carbonate chemistry measurements have been carried out annually since 2009 during UK research cruises along the Extended Ellett Line (EEL), a hydrographic transect in northeast Atlantic Ocean. The EEL intersects several water masses that are key to global thermohaline circulation, and therefore sample region which it is critical monitor secular physical biogeochemical changes. We combined results from these with existing quality‐controlled observational data syntheses produce...