A5059840228- Marine and coastal ecosystems
- Oceanographic and Atmospheric Processes
- Microbial Community Ecology and Physiology
- Atmospheric and Environmental Gas Dynamics
- Geology and Paleoclimatology Research
- Geophysics and Gravity Measurements
- Scientific Research and Discoveries
- Marine Biology and Ecology Research
- Ocean Acidification Effects and Responses
- Aquatic Ecosystems and Phytoplankton Dynamics
- Isotope Analysis in Ecology
- Climate variability and models
- Methane Hydrates and Related Phenomena
- demographic modeling and climate adaptation
- Distributed and Parallel Computing Systems
- Global Energy and Sustainability Research
- Peatlands and Wetlands Ecology
- Reservoir Engineering and Simulation Methods
- Clinical Nutrition and Gastroenterology
- Marine and environmental studies
- Meteorological Phenomena and Simulations
- Marine Bivalve and Aquaculture Studies
- Geochemistry and Elemental Analysis
- Groundwater and Isotope Geochemistry
- Marine and fisheries research
Swedish Meteorological and Hydrological Institute
2017-2024
Stockholm University
2013-2014
The Earth system model EC-Earth3 for contributions to CMIP6 is documented here, with its flexible coupling framework, major configurations, a methodology ensuring the simulations are comparable across different high-performance computing (HPC) systems, and physical performance of base configurations over historical period. variety possible sub-models reflects broad interests in EC-Earth community. key metrics demonstrate behavior biases well within frame known from recent CMIP models. With...
Abstract. The Earth System Model EC-Earth3 for contributions to CMIP6 is documented here, with its flexible coupling framework, major model configurations, a methodology ensuring the simulations are comparable across different HPC systems, and physical performance of base configurations over historical period. variety possible sub-models reflects broad interests in EC-Earth community. key metrics demonstrate behaviour biases well within frame known from recent CMIP models. With improved...
Long sea level records with high temporal resolution are of paramount importance for future coastal protection and adaptation plans. Here we discuss the application machine learning techniques to some regression problems commonly encountered when analyzing such time series. The performance artificial neural networks is compared that multiple linear models on data from Swedish coast. found be superior local forcing used together remote meteorological forcing, whereas show similar excluded....
<strong class="journal-contentHeaderColor">Abstract.</strong> State-of-the-art global nutrient deposition fields are coupled here to the Pelagic Interactions Scheme for Carbon and Ecosystem Studies (PISCES) biogeochemistry model investigate their effect on ocean in context of atmospheric forcings pre-industrial, present, future periods. PISCES, as part European Community Earth system (EC-Earth) suite, runs offline mode using prescribed dynamical simulated by Nucleus Modelling Ocean (NEMO)...
Abstract. The co-variation of key variables with simulated phytoplankton biomass in the Baltic proper has been examined using wavelet analysis and results a long-term simulation for 1850–2008 high-resolution coupled physical–biogeochemical circulation model Sea. By focusing on inter-annual variations, it is possible to track effects acting decadal timescales such as temperature increase due climate change well changes nutrient input. strongest coherence indicates that variations are...
Abstract. Shifts in the day of peak net primary production (NPP) were detected different biogeochemical provinces North Atlantic (25–65° N). Most displayed a shift toward earlier NPP, with largest change points 21st century and northern parts domain. Furthermore, occurrences first mixed-layer depth (MLD) shallower than 40 m NPP are positively correlated over most As was case for MLD occur around or after year 2000. Daily output from two fully coupled CMIP6 Earth system models, EC-Earth3-CC...
Abstract. Abrupt changes in ocean biogeochemical variables occur as a result of human-induced climate forcing well those which are more gradual and over longer timescales. These abrupt have not yet been identified quantified to the same extent ones. We review synthesise biogeochemistry under climatic forcing. specifically address carbon oxygen cycles because related processes acidification deoxygenation provide important ecosystem hazards. Since depend also on physical environment, we...
Ocean deoxygenation due to anthropogenic warming represents a major threat marine ecosystems and fisheries. Challenges remain in simulating the modern observed changes dissolved oxygen (O 2 ). Here, we present an analysis of upper ocean (0-700m) recent decades from suite Coupled Model Intercomparison Project phase 6 (CMIP6) biogeochemical simulations. The physics simulations include both ocean-only (the Phase 1 2, OMIP1 OMIP2) coupled Earth system (CMIP6 Historical) configurations. We...
Abstract. Dense blooms of filamentous diazotrophic cyanobacteria are formed every summer in the Baltic Sea. These autotrophic organisms may bypass nitrogen limitation by performing fixation, which also governs surrounding increasing bioavailable nitrogen. The magnitude fixation is important to estimate from a management perspective since this might counteract eutrophication reduction measures. Here, life cycle model has been implemented for first time high-resolution 3D coupled physical and...
We validated simulations of the Earth system model (ESM) EC-Earth-NEMO present-day temperature, salinity, nutrient, and chlorophyll a profiles with in situ observations Northeast Atlantic Ocean (29–63º N). Simulations standard parametrization (run 1) improved vertical mixing 2) were compared. Run 1 showed shallower mixed layer depths (MLDs) spring as compared to owing lower salinities upper 200 m subpolar North (>55º This coincided mismatch observed timing magnitude phytoplankton bloom....
In models of the marine carbon system, it is important to correctly represent riverine and aerial inputs dissolved inorganic (DIC) alkalinity. We have examined different processes contributing this exchange. terms DIC, we divided fluxes into their internal component, constituting ultimately derived from atmosphere, external component originating rocks. find that only process DIC input carbonate fossil weathering erosion organic matter constitutes a sink. A number both affect Beside silicate...
The oceanic carbon system is commonly described in terms of the two state variables total car- bon, DIC, and alkalinity, Alk. Here we suggest use alternative source adapted variables, Acidic Car- AC Basic Carbon, BC, defined by related to (DIC, Alk) with a simple linear transformation. (AC, BC) can be interpreted as representing respectively supply dioxide dissolved carbonate, keeping mind that hydrogen ions acts transform from basic acidic carbon. Accordingly these tell us how much or...
Abstract. The North Sea and the Baltic still experience eutrophication deoxygenation despite large international efforts to mitigate such environmental problems. Due highly different oceanographic frameworks of two seas, existing modelling have mainly focused on only one respective making it difficult study interbasin exchange mass energy. Here, we present NEMO–SCOBI, an ocean model (NEMO-Nordic) coupled Swedish Coastal Ocean Biogeochemical (SCOBI), that covers Sea, Skagerrak–Kattegat...
Abstract. State-of-the-art global nutrient deposition fields are here coupled to the biogeochemistry model PISCES investigate effect on ocean in context of atmospheric forcings for preindustrial, present, and future periods. Present-day fluxes inorganic N, Fe, P over accounted equal ~40 Tg-N yr−1, ~0.28 Tg-Fe yr−1 ~0.10 Tg-P yr−1. The resulting globally integrated primary production roughly 47 Pg-C is well within range satellite-based estimates other modeling predictions. Preindustrial lower...
Abstract. Dense blooms of filamentous diazotrophic cyanobacteria are formed every summer in the Baltic Sea. These autotrophic organisms may bypass nitrogen limitation by performing fixation, which also governs surrounding releasing bioavailable nitrogen. The magnitude fixation is important to estimate from a management perspective since this might counteract eutrophication reduction measures. Here, life cycle model has been implemented for first time high-resolution 3D coupled physical and...
Abstract. Uniquely long datasets, spanning 1750–2100, of daily output from two fully coupled CMIP6 Earth System Models, EC-Earth3-CC and NorESM2-LM, have been used to investigate the historical future (under SSP5-8.5 scenario) evolution marine net primary production its phenology in a North Atlantic region (30–60° N). We compared data estimates (NPP) derived CAFE satellite found significant differences between Model simulations model. The low spatial resolution earth system models can...