Karl‐Heinz Baumann
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View article: Mismatch between coccolithophore-based estimates of particulate inorganic carbon (PIC) concentration and satellite-derived PIC concentration in the Pacific Southern Ocean
Mismatch between coccolithophore-based estimates of particulate inorganic carbon (PIC) concentration and satellite-derived PIC concentration in the Pacific Southern Ocean Open
Coccolithophores are the main type of calcifying phytoplankton in the Southern Ocean (SO) and are key organisms in the production of particulate inorganic carbon (PIC). However, in situ studies of coccolithophores and in particular of thei…
View article: Community guidelines to increase the reusability of marine microfossil assemblage data
Community guidelines to increase the reusability of marine microfossil assemblage data Open
Data on marine microfossil assemblage composition have multiple applications. Initially, they were primarily used for (chrono)stratigraphy and palaeoecology, but these data are now also widely used to study evolutionary and ecological proc…
View article: Coccolithophore calcite production from nannofossil records 
Coccolithophore calcite production from nannofossil records  Open
The production, export and accumulation of calcite (CaCO3) are key components of the marine carbon system and the global carbon cycle. Coccolithophores are responsible for ~20-80% of the open ocean CaCO3 production. Over geological timesca…
View article: Orbital-scale variability in the contribution of foraminifera and coccolithophores to pelagic carbonate production
Orbital-scale variability in the contribution of foraminifera and coccolithophores to pelagic carbonate production Open
Throughout the Cenozoic, calcareous nannoplankton and planktonic foraminifera have been the main producers of pelagic carbonate preserved on the seafloor. While past variability in pelagic carbonate production has been previously studied, …
View article: Comment on egusphere-2023-2801
Comment on egusphere-2023-2801 Open
Abstract. Polar plankton communities are already experiencing the impact of ocean acidification and global warming. Coccolithophores are the main type of calcifying phytoplankton in the Southern Ocean (SO) and they play a key role in the c…
View article: Coherent response of zoo‐ and phytoplankton assemblages to global warming since the Last Glacial Maximum
Coherent response of zoo‐ and phytoplankton assemblages to global warming since the Last Glacial Maximum Open
Aim We are using the fossil record of different marine plankton groups to determine how their biodiversity has changed during past climate warming comparable to projected future warming. Location North Atlantic Ocean and adjacent seas. Tim…
View article: Holocene to Late Pleistocene Climate Reconstruction: A snapshot from the Red Sea using Micropalaeontological Tools
Holocene to Late Pleistocene Climate Reconstruction: A snapshot from the Red Sea using Micropalaeontological Tools Open
Climate fluctuations and environmental changes have been integral to the Earth’s system since its formation. Studying these past changes could provide crucial insights into future climate variability, where records of environmental c…
View article: Pacific Southern Ocean coccolithophore-derived particulate inorganic carbon (PIC): A novel comparative analysis of in-situ and satellite-derived measurements
Pacific Southern Ocean coccolithophore-derived particulate inorganic carbon (PIC): A novel comparative analysis of in-situ and satellite-derived measurements Open
Polar plankton communities are already experiencing the impact of ocean acidification and global warming. Coccolithophores are the main type of calcifying phytoplankton in the Southern Ocean (SO) and they play a key role in the carbon cycl…
View article: Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927)
Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927) Open
Marine plankton is an important component of the global carbon cycle. Whereas the production and seafloor export of organic carbon produced by the plankton, the biological pump, has received much attention, the long-term variability in pla…
View article: Coupled Coccolith-Based Temperature and Productivity High-Resolution Reconstructions in the Eastern Equatorial Pacific During the Last Deglaciation and the Holocene
Coupled Coccolith-Based Temperature and Productivity High-Resolution Reconstructions in the Eastern Equatorial Pacific During the Last Deglaciation and the Holocene Open
We present a new high-resolution reconstruction of annual sea-surface temperatures (SSTa) and net primary productivity (NPP) using novel coccolithophore-based models developed for the Eastern Equatorial Pacific (EEP). We combined published…
View article: Nature and origin of variations in pelagic carbonate production in the tropical ocean since the Mid Miocene (ODP Site 927)
Nature and origin of variations in pelagic carbonate production in the tropical ocean since the Mid Miocene (ODP Site 927) Open
Marine plankton is an important component of the global carbon cycle. Whereas the production and seafloor export of organic carbon produced by the plankton, the biological pump, has received much attention, the long-term variability in pla…
View article: Distribution of coccoliths in surface sediments across the Drake Passage and calcification of <i>Emiliania huxleyi</i> morphotypes
Distribution of coccoliths in surface sediments across the Drake Passage and calcification of <i>Emiliania huxleyi</i> morphotypes Open
The Southern Ocean is experiencing rapid and profound changes in its physical and biogeochemical properties that may influence the distribution and composition of pelagic plankton communities. Coccolithophores are the most prolific carbona…
View article: Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016)
Seasonal flux patterns and carbon transport from low-oxygen eddies at the Cape Verde Ocean Observatory: lessons learned from a time series sediment trap study (2009–2016) Open
Mesoscale eddies are abundant in the eastern tropical North Atlantic and act as oases for phytoplankton growth due to local enrichment of nutrients in otherwise oligotrophic waters. It is not clear whether these eddies can efficiently tran…
View article: Comment on bg-2021-105
Comment on bg-2021-105 Open
Abstract. The Southern Ocean is experiencing rapid and profound changes in its physical and biogeochemical properties that may influence the distribution and composition of pelagic plankton communities. Coccolithophores are the most prolif…
View article: Comment on bg-2021-114
Comment on bg-2021-114 Open
Abstract. Mesoscale eddies are abundant in the eastern tropical North Atlantic and act as oases for phytoplankton growth due to local enrichment of nutrients in otherwise oligotrophic waters. It is not clear whether these eddies can effici…
View article: Comment on bg-2021-114
Comment on bg-2021-114 Open
Abstract. Mesoscale eddies are abundant in the eastern tropical North Atlantic and act as oases for phytoplankton growth due to local enrichment of nutrients in otherwise oligotrophic waters. It is not clear whether these eddies can effici…
View article: Carbonate fluxes by coccolithophore species between <scp>NW</scp> Africa and the Caribbean: Implications for the biological carbon pump
Carbonate fluxes by coccolithophore species between <span>NW</span> Africa and the Caribbean: Implications for the biological carbon pump Open
Coccolithophores are among the most important calcifying pelagic organisms. To assess how coccolithophore species with different coccolith‐carbonate mass and distinct ecological resilience to ocean warming will influence the “rain ratio” a…
View article: Comment on bg-2021-105
Comment on bg-2021-105 Open
Abstract. The Southern Ocean is experiencing rapid and profound changes in its physical and biogeochemical properties that may influence the distribution and composition of pelagic plankton communities. Coccolithophores are the most prolif…
View article: Distribution of coccoliths in surface sediments across the Drake Passage and calcification of Emiliania huxleyi morphotypes
Distribution of coccoliths in surface sediments across the Drake Passage and calcification of Emiliania huxleyi morphotypes Open
The Southern Ocean is experiencing rapid and profound changes in its physical and biogeochemical properties that may influence the distribution and composition of pelagic plankton communities. Coccolithophores are the most prolific carbona…
View article: ODP Leg 162, Hole 982B - Well Logging Data
ODP Leg 162, Hole 982B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 984B - Well Logging Data
ODP Leg 162, Hole 984B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 982B - Well Logging Data
ODP Leg 162, Hole 982B - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 986D - Well Logging Data
ODP Leg 162, Hole 986D - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 986C - Well Logging Data
ODP Leg 162, Hole 986C - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 986D - Well Logging Data
ODP Leg 162, Hole 986D - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …
View article: ODP Leg 162, Hole 986C - Well Logging Data
ODP Leg 162, Hole 986C - Well Logging Data Open
Logging data are measurements of physical properties of the formation surrounding a borehole, acquired in situ after completion of coring (wireline logging) or during drilling (Logging-While-Drilling, LWD). The range of data (resistivity, …