Lars Chresten Lund-Hansen
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View article: Microbial and nutrient enrichments in Brine and Nilas during the first 24 h of open water lead refreezing
Microbial and nutrient enrichments in Brine and Nilas during the first 24 h of open water lead refreezing Open
View article: Climate change drives coastal oligotrophication in a high-Arctic fjord via terrestrial greening and freshwater input
Climate change drives coastal oligotrophication in a high-Arctic fjord via terrestrial greening and freshwater input Open
Nutrient inputs from upwelling, ocean currents, advection, and terrestrial sources play a crucial role in driving primary production in Arctic fjords and coastal areas. This study analyzes more than two decades of field measurements across…
View article: Loss of sea ice alters light spectra for aquatic photosynthesis
Loss of sea ice alters light spectra for aquatic photosynthesis Open
View article: Marine sources of ice-nucleating proteins in the Arctic and their impact on atmospheric processes
Marine sources of ice-nucleating proteins in the Arctic and their impact on atmospheric processes Open
The Arctic is particularly vulnerable to climate change due to a decrease in surface albedo caused by declining ice and snow cover. Aerosol-cloud feedbacks modulate Arctic warming, with clouds profoundly affecting the radiative balance of …
View article: Linking biogenic high-temperature ice nucleating particles in Arctic soils and streams to their microbial producers
Linking biogenic high-temperature ice nucleating particles in Arctic soils and streams to their microbial producers Open
Aerosols, including biological aerosols, exert a significant influence on cloud formation, influencing the global climate through their effects on radiative balance and precipitation. The Arctic region features persistent mixed-phase cloud…
View article: Impact of experimental light regimes on Antarctic fast-ice algal communities observed by combining ice coring and imaging spectroscopy
Impact of experimental light regimes on Antarctic fast-ice algal communities observed by combining ice coring and imaging spectroscopy Open
Antarctic landfast sea ice is an integral component of coastal and nearshore ecosystems, providing bottom-ice habitats that harbour some of the most productive marine microalgal communities on Earth. Ice algal biomass is driven by the spat…
View article: Dynamics of P, Fe and Mn along a depth gradient in the SW Baltic Sea
Dynamics of P, Fe and Mn along a depth gradient in the SW Baltic Sea Open
Diffusive, advective and resuspension fluxes of both dissolved and suspended P, Fe and Mn were measured along a depth transect (16 to 47 m) in the SW Baltic Sea. Sediments were covered by a thin fluff layer, which was functioning as a sour…
View article: Supplementary material to "Linking Biogenic High-Temperature Ice Nucleating Particles in Arctic soils and Streams to Their Microbial Producers"
Supplementary material to "Linking Biogenic High-Temperature Ice Nucleating Particles in Arctic soils and Streams to Their Microbial Producers" Open
View article: Linking Biogenic High-Temperature Ice Nucleating Particles in Arctic soils and Streams to Their Microbial Producers
Linking Biogenic High-Temperature Ice Nucleating Particles in Arctic soils and Streams to Their Microbial Producers Open
Aerosols, including biological aerosols, exert a significant influence on cloud formation, influencing the global climate through their effects on radiative balance and precipitation. The Arctic region features persistent mixed-phase cloud…
View article: Sea ice as habitat for microalgae, bacteria, virus, fungi, meio- and macrofauna: A review of an extreme environment
Sea ice as habitat for microalgae, bacteria, virus, fungi, meio- and macrofauna: A review of an extreme environment Open
The novel concept of the review is a focus on the organisms living in the sea ice and what mechanisms they have developed for their existence. The review describes the physical environment of the sea ice and the microorganisms living there…
View article: An Arctic sea ice spring bloom driven and dominated by Dinoflagellates - a harbinger of the future sea ice?
An Arctic sea ice spring bloom driven and dominated by Dinoflagellates - a harbinger of the future sea ice? Open
The sea ice spring bloom is crucial for sustaining Arctic marine food webs, with sea ice algae serving as primary carbon sources for higher trophic levels. Despite the prevailing dominance of diatom species in sea ice spring blooms, our st…
View article: The Partitioning Processes of Sea Ice Associated Ice Nucleation Particles Impacting the Arctic Clouds 
The Partitioning Processes of Sea Ice Associated Ice Nucleation Particles Impacting the Arctic Clouds  Open
The Arctic is a region that is particularly vulnerable to climate change, as it is warming at a much faster rate than the rest of the globe. This warming causes a decline in multiyear sea ice cover, which results in an increase in ice-free…
View article: Environmental drivers of Arctic communities based on metabarcoding of marine sediment eDNA
Environmental drivers of Arctic communities based on metabarcoding of marine sediment eDNA Open
Our ability to assess biodiversity at relevant spatial and temporal scales for informing management is of increasing importance given this is foundational to identify and mitigate the impacts of global change. Collecting baseline informati…
View article: A 30-year (1992-2021) time-series of Kd(PAR) at the North Sea - Baltic Sea transitional zone - trends in light attenuation and Chlorophyll a
A 30-year (1992-2021) time-series of Kd(PAR) at the North Sea - Baltic Sea transitional zone - trends in light attenuation and Chlorophyll a Open
Light attenuation is of fundamental importance for photosynthesis in marine and freshwater environments and quantified as Kd(PAR). A 30-year (1992–2021) long time-series of Kd(PAR) (n = 945) from Aarhus Bay, at the No…
View article: Spatial Variability in the Primary Production Rates and Biomasses (Chl a) of Sea Ice Algae in the Canadian Arctic–Greenland Region: A Review
Spatial Variability in the Primary Production Rates and Biomasses (Chl a) of Sea Ice Algae in the Canadian Arctic–Greenland Region: A Review Open
The aims of this review are to elucidate the spatial variation in the primary production rates and biomasses (Chl a) of sea ice algae in the Canadian Arctic–Greenland region, characterized by its comparable physical settings. A database wa…
View article: Spatial Variability in Sea Ice Algae Primary Production Rates and Biomasses (Chl a) in the Canadian Arctic—Greenland Region: A Review
Spatial Variability in Sea Ice Algae Primary Production Rates and Biomasses (Chl a) in the Canadian Arctic—Greenland Region: A Review Open
The aims of the review were to elucidate the spatial variation in sea ice algae primary production rates and biomasses (Chl a) in the Canadian Arctic – Greenland region, characterized by comparable physical settings. A database was compile…
View article: Data set Canada Greenland Sea Ice Algae dataset
Data set Canada Greenland Sea Ice Algae dataset Open
A compiled dataset of ice algae primary production rates from Canada and Greenland including data on snow and ice thickness, nutrients in ice and below ice.
View article: Data set Canada Greenland Sea Ice Algae dataset
Data set Canada Greenland Sea Ice Algae dataset Open
A compiled dataset of ice algae primary production rates from Canada and Greenland including data on snow and ice thickness, nutrients in ice and below ice.
View article: Arctic coastal nutrient limitation linked to tundra greening
Arctic coastal nutrient limitation linked to tundra greening Open
Nutrients supplied by upwelling, mixing, and inflow from adjacent oceans and terrestrial nutrient inputs are key factors regulating primary production in Arctic fjords and coastal areas. However, the contribution of terrestrial nutrient in…
View article: A fjord with a land-terminating glacier: Meltwater, bio-optics, particulate matter, nutrients, phytoplankton species, and primary production in west Greenland
A fjord with a land-terminating glacier: Meltwater, bio-optics, particulate matter, nutrients, phytoplankton species, and primary production in west Greenland Open
The paper describes the bio-optical conditions, particulate matter, nutrients and primary production in a west Greenland fjord with a land-terminating glacier
View article: A fjord with a land-terminating glacier: Meltwater, bio-optics, particulate matter, nutrients, phytoplankton species, and primary production in west Greenland
A fjord with a land-terminating glacier: Meltwater, bio-optics, particulate matter, nutrients, phytoplankton species, and primary production in west Greenland Open
Land-terminating glaciers and submarine melting of marine-terminating glaciers are significant features in Arctic regions and are foreseen to become more frequent as marine-terminating glaciers ultimately develop into a land-terminated sta…
View article: The Partitioning Processes of Sea Ice Associated Marine Ice Nucleation Particles Impacting the Arctic Clouds
The Partitioning Processes of Sea Ice Associated Marine Ice Nucleation Particles Impacting the Arctic Clouds Open
The Arctic is a region that is particularly vulnerable to the impacts of climate change, as it is warming at a faster rate than the rest of the world. This warming causes a decline in multiyear sea ice cover, which results in an increasing…
View article: Pigment signatures of algal communities and their implications for glacier surface darkening
Pigment signatures of algal communities and their implications for glacier surface darkening Open
View article: Highly Productive Ice Algal Mats in Arctic Melt Ponds: Primary Production and Carbon Turnover
Highly Productive Ice Algal Mats in Arctic Melt Ponds: Primary Production and Carbon Turnover Open
Arctic summer sea ice extent is decreasing and thinning, forming melt ponds that cover more than 50% of the sea ice area during the peak of the melting season. Despite of this, ice algal communities in melt ponds are understudied and so ar…
View article: Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions
Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions Open
Data-set related to the paper "Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions" published in JMSE
View article: Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions
Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions Open
Data-set related to the paper "Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions" published in JMSE
View article: CTD Profiles from the HDMS Lauge Koch cruise to East Greenland fjords, August 2018
CTD Profiles from the HDMS Lauge Koch cruise to East Greenland fjords, August 2018 Open
Greenland fjords are currently undergoing large ecosystem changes due to unprecedented melting of the Greenland Ice Sheet (GrIS). The rapidly increasing discharge of meltwater and ice not only influences circulation patterns and stratifica…
View article: CTD Profiles from the HDMS Lauge Koch cruise to East Greenland fjords, August 2018
CTD Profiles from the HDMS Lauge Koch cruise to East Greenland fjords, August 2018 Open
Greenland fjords are currently undergoing large ecosystem changes due to unprecedented melting of the Greenland Ice Sheet (GrIS). The rapidly increasing discharge of meltwater and ice not only influences circulation patterns and stratifica…
View article: Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord
Photobiological Effects on Ice Algae of a Rapid Whole-Fjord Loss of Snow Cover during Spring Growth in Kangerlussuaq, a West Greenland Fjord Open
Describes the photobiological effects on sea ice algae with a snow melt
View article: Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions
Upwelling Irradiance below Sea Ice—PAR Intensities and Spectral Distributions Open
A description of measurements of upwelling PAR (Photosynthetic Active Radiation) below sea ice and it's spectral distribution.