0000000000434864

AUTHOR

Lennart T. Bach

0000-0003-0202-3671

showing 2 related works from this author

Effect of Intensity and Mode of Artificial Upwelling on Particle Flux and Carbon Export

2021

Reduction of anthropogenic CO2 emissions alone will not sufficiently restrict global warming and enable the 1.5°C goal of the Paris agreement to be met. To effectively counteract climate change, measures to actively remove carbon dioxide from the atmosphere are required. Artificial upwelling has been proposed as one such carbon dioxide removal technique. By fueling primary productivity in the surface ocean with nutrient-rich deep water, it could potentially enhance downward fluxes of particulate organic carbon (POC) and carbon sequestration. In this study we investigated the effect of different intensities of artificial upwelling combined with two upwelling modes (recurring additions vs. on…

0106 biological sciences010504 meteorology & atmospheric sciencesPHYTOPLANKTON COMMUNITYScienceartificial upwellingchemistry.chemical_elementOcean EngineeringQH1-199.5Carbon sequestrationAquatic ScienceAtmospheric sciencesOceanography01 natural sciencesremineralization ratechemistry.chemical_compoundWater columnORGANIC-CARBONVDP::Matematikk og Naturvitenskap: 400::Geofag: 450particle propertiesOrganic matter1172 Environmental sciences0105 earth and related environmental sciencesWater Science and TechnologyCO2 CONCENTRATIONSTotal organic carbonchemistry.chemical_classificationGlobal and Planetary Change010604 marine biology & hydrobiologyQTECHNICAL NOTEUPPER OCEANGeneral. Including nature conservation geographical distributionsinking velocityPlanktoncarbon sequestrationMARINE SNOWBACTERIAL-GROWTHINVERSE RELATIONSHIPexport fluxchemistry13. Climate actionCarbon dioxideEnvironmental scienceUpwellingmesocosm studyremineralization depthCarbonTRANSPARENT EXOPOLYMER PARTICLESFrontiers in Marine Science
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Factors controlling plankton productivity, particulate matter stoichiometry, and export fluxin the coastal upwelling system off Peru

2020

Abstract. Eastern boundary upwelling systems (EBUS) are among the most productive marine ecosystems on Earth. The high productivity in surface waters is facilitated by upwelling of nutrient-rich deep waters, with high light availability enabling fast phytoplankton growth and nutrient utilization. However, there are numerous biotic and abiotic factors modifying productivity and biogeochemical processes. Determining these factors is important because EBUS are considered hotspots of climate change, and reliable predictions on their future functioning requires understanding of the mechanisms driving biogeochemical cycles therein. In this study, we used in situ mesocosms to obtain mechanistic un…

Biogeochemical cycleOceanographyWater columnbiologyPhytoplanktonAkashiwo sanguineaEnvironmental scienceUpwellingDominance (ecology)Planktonbiology.organism_classificationMesocosm
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