A5024503210- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Marine and coastal ecosystems
- Atmospheric Ozone and Climate
- Coastal and Marine Management
- Air Quality Monitoring and Forecasting
- Coastal and Marine Dynamics
- Ocean Acidification Effects and Responses
- Microplastics and Plastic Pollution
- Microbial Community Ecology and Physiology
- Marine Biology and Ecology Research
- Marine and Offshore Engineering Studies
- Oil Spill Detection and Mitigation
- Marine Biology and Environmental Chemistry
- Per- and polyfluoroalkyl substances research
- biodegradable polymer synthesis and properties
- Recycling and Waste Management Techniques
- Marine and environmental studies
Carl von Ossietzky Universität Oldenburg
2019-2023
GEOMAR Helmholtz Centre for Ocean Research Kiel
2023
Abstract. Ice-nucleating particles (INPs) in the troposphere can form ice clouds via heterogeneous nucleation. Yet, atmospheric number concentrations of INPs (NINP) are not well characterized, and, although there is some understanding their sources, it still unclear to what extend different sources contribute or if all known. In this work, we examined properties at Cabo Verde (a.k.a. Cape Verde) from environmental compartments: oceanic sea surface microlayer (SML), underlying water (ULW),...
Abstract. The project MarParCloud (Marine biological production, organic aerosol Particles and marine Clouds: a process chain) aims to improve our understanding of the genesis, modification impact matter (OM) from its export particles and, finally, ability act as ice-nucleating (INPs) cloud condensation nuclei (CCN). A field campaign at Cape Verde Atmospheric Observatory (CVAO) in tropics September–October 2017 formed core this that was jointly performed with MARSU (MARine atmospheric...
Abstract. Transparent exopolymer particles (TEPs) exhibit the properties of gels and are ubiquitously found in world oceans. TEPs may enter atmosphere as part sea-spray aerosol. Here, we report number concentrations with a diameter > 4.5 µm, hence covering supermicron particle range, ambient aerosol cloud water samples from tropical Atlantic Ocean well generated using plunging waterfall tank that was filled seawater. The TEP ranged between 7×102 3×104 #TEP m−3 correlations sodium (Na+)...
Microplastics (MP) including tire wear particles (TWP) are ubiquitous. However, their mass loads, transport, and vertical behavior in water bodies overlying air never studied simultaneously before. Particularly, the sea surface microlayer (SML), a ubiquitous, predominantly organic, gelatinous film (<1 mm), is interesting since it may favor MP enrichment. In this study, remote-controlled research catamaran sampled air, SML, underlying (ULW) Swedish fjords of variable anthropogenic impacts...
Abstract Bubbles rising through the water column are known to scavenge organic material and microorganisms, transport them air–sea interface after bursting. This mechanism has important implications for exchange processes. However, little is about how bubbles influence chemical biological properties of sea‐surface microlayer (SML), a gelatinous film at interface. We used floating mesocosms in coastal Baltic Sea laboratory tank filled with seawater from North study effect bubbling on nature...
Transparent exopolymer particles (TEP) act as a major transport mechanism for organic matter (OM) to the sea surface microlayer (SML) via bubble scavenging, and into atmosphere bursting. However; little is known about effects of scavenging on TEP enrichment in SML. This study examined several bubbling conditions algae species SML was enhanced by bubbling, with larger impact from rate than size increasing over time. Depth profiles showed that any aggregates formed underlying water (ULW) were...
Abstract. The project MarParCloud (Marine biological production, organic aerosol Particles and marine Clouds: a process chain) aims at improving our understanding of the genesis, modification impact matter (OM), from its via export to particles and, finally, towards ability act as ice nucleating (INP) cloud condensation nuclei (CCN). A field campaign Cape Verde Atmospheric Observatory (CVAO) in tropics September/October 2017 formed core this that was jointly performed with (MARine...
Abstract. Transparent exopolymer particles (TEP) are a major source for both organic matter (OM) and carbon transfer in the ocean into atmosphere. Consequently, understanding vertical distribution of TEP processes which impact its movement important OM pools on larger scale. Additionally, most studies looking at profile have focused large depth scales from 5 to 1000s meters omitted near surface environment. Results study enrichment sea microlayer (SML) different regions (tropical, temperate)...
Abstract. Ice nucleating particles (INPs) in the troposphere can form ice clouds via heterogeneous nucleation. Yet, atmospheric number concentrations of INPs (NINP) are not well characterized and although there is some understanding their sources, it still unclear to what extend different sources contribute, nor if all known. In this work, we examined properties at Cape Verde from oceanic sea surface microlayer (SML) underlying water (ULW), atmosphere close both cloud level as water. Both...
Abstract. Transparent exopolymer particles (TEP) exhibit the properties of gels and are ubiquitously found in world oceans. Possibly, TEP may enter atmosphere as part sea spray aerosol. Here, we report number concentrations (diameter > 4.5 µm) ambient aerosol cloud water samples from tropical Atlantic Ocean well generated using a plunging waterfall tank that was filled with water. The ranged between 7 × 102 3 104 #TEP m−3 supermicron correlations to sodium (Na+) calcium (Ca2+) (R2 = 0.5)...
Transparent exopolymer particles (TEP) exhibit the properties of gels and are ubiquitously found in world oceans. Here we demonstrate that TEP may enter atmosphere as part sea spray aerosol likely influence cloud properties. We show number concentrations with a diameter > 4.5 &#181;m, hence covering supermicron particle range measured ambient water samples from tropical Atlantic Ocean. Furthermore, were analysed generated using plunging waterfall tank was filled seawater.Based on Na+...
Supplementary Figure S1: Vertical profiles for (a) total cell number (TCN) and (b) small autotrophs from the Baltic cruise.
Fig. S1: 96 hour back trajectories calculated on an hourly basis within the intervals of aerosol particle filter sampling at CVAO, using NOAA HYSPLIT model (HYbrid Single-Particle Lagrangian Integrated Trajectory, http://www.arl.noaa.gov/ready/hysplit4.html, 26.07.19) in ensemble mode arrival height 500 m ± 200 ((van Pinxteren, et al. 2010)).Starting time corresponded with particles and was 21.00 UTC from 16 th -21 st September 16.00 22 nd -12 October.
Comment: -L231-232-'total cell numbers (TCN) and small autotroph profiles': Please provide some more information on the flow cytometry
Thank you for your comments, as a native english speaker I tried to pay particular attention my linguistic choices, however using the specific points have given will attempt re-word certain sections and sentences which may be unclear an international audience.Regarding materials methods sections, we are uncertain aspects were you, described study areas, sampling techniques, all analyses statistical procedures.Additionally, second reviewer found it precise fluent.I would like also point out...
&lt;p&gt;The project MarParCloud (marine biological production, organic aerosol particles and marine clouds: a process chain) aims at achieving better understanding of the production matter (OM)in oceans, its export into finally ability to act as ice cloud condensation nuclei (INP CCN). The core comprised field campaign Cape Verde Atmosphere Observatory (CVAO) in autumn 2017, where variety chemical, physical, meteorological approaches were applied. investigations included concerted...
&lt;p&gt;Nowadays, various environmental compartments are under increasing pressure from anthropogenic impact, and we as a society, have duty, to understand the extent of changing environment how this may affect functioning global earth processes. More than 70% Earth&amp;#8217;s surface is covered by ocean whose uppermost layer, sea microlayer (SML), specific at air-sea interface, that highly susceptible human impacts climate change. SML has short- long-term on range planetary...