A5078953092- Marine and coastal ecosystems
- Oceanographic and Atmospheric Processes
- Marine Biology and Ecology Research
- Soil and Water Nutrient Dynamics
- Isotope Analysis in Ecology
- Aquatic and Environmental Studies
- Marine and environmental studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geology and Paleoclimatology Research
- Peatlands and Wetlands Ecology
- Marine and fisheries research
- Wastewater Treatment and Nitrogen Removal
- Phosphorus and nutrient management
- Arctic and Russian Policy Studies
- Microbial Community Ecology and Physiology
- Atmospheric chemistry and aerosols
- Geological Studies and Exploration
- Ocean Acidification Effects and Responses
- Groundwater and Isotope Geochemistry
- Transportation Systems and Logistics
- Coastal and Marine Management
- Methane Hydrates and Related Phenomena
- Coastal wetland ecosystem dynamics
- Atmospheric and Environmental Gas Dynamics
- Economic and Technological Systems Analysis
Academy of the State Fire Service EMERCOM of Russia
2023-2024
Institute of Water Problems of the North Karelian Research Centre
2024
Northern (Arctic) Federal University
2024
National Research Mordovia State University
2024
Ministry of Emergency Situations
2024
Stockholm University
2011-2022
Östersjöcentrum
2016-2022
St Petersburg University
2016
Baltic International Academy
2013
Stockholm Resilience Centre
2011
Deep-water oxygen concentrations in the Baltic Sea are influenced by eutrophication, but also saltwater inflows from North Sea. In last two decades, only major have been recorded and lack of is believed to resulted a long-term stagnation deepest bottom water. Analyzing data 1970 2000 at basin scale, we show that estimated volume water with oxygen, <2 mL L-1, was actually minimum end longest so-called period on record. We annual changes dissolved inorganic phosphate pools were positively...
Abstract. Based on the Baltic Earth Assessment Reports of this thematic issue in System Dynamics and recent peer-reviewed literature, current knowledge effects global warming past future changes climate Sea region is summarised assessed. The study an update Second Climate Change (BACC II) published 2015 focuses atmosphere, land, cryosphere, ocean, sediments, terrestrial marine biosphere. summaries gained palaeo-, historical, regional research, we find that main conclusions from earlier...
The Baltic Sea is one of the world's marine areas well covered by both long-term observations and oceanographic studies. It also a large coastal area in which eutrophication had already been recognised half century ago. While mechanisms are largely understood, several features less sometimes neglected, including: a) natural anthropogenic North-South East-West nutrient gradients within drainage basin ecosystems; b) compensatory potential interconnectivity between basins; c) long residence...
[1] Using an ensemble of coupled physical-biogeochemical models driven with regionalized data from global climate simulations we are able to quantify the influence changing upon oxygen conditions in one numerous coastal seas (the Baltic Sea) that suffers worldwide eutrophication and expanding hypoxic zones. Applying various nutrient load scenarios show under impact warming anoxic areas will very likely increase or at best only slightly decrease (in case optimistic reductions) compared...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 343:15-23 (2007) - DOI: https://doi.org/10.3354/meps06943 Satellite measurements of cyanobacterial bloom frequency in Baltic Sea: interannual and spatial variability M. Kahru1,*, O. P. Savchuk2, R. Elmgren2 1Scripps Institution Oceanography, La Jolla, California 92093-0218, USA 2Department Systems Ecology,...
Multi-model ensemble simulations for the marine biogeochemistry and food web of Baltic Sea were performed period 1850–2098, projected changes in future climate compared with past environment. For 1850–2006, atmospheric, hydrological nutrient forcings reconstructed, based on historical measurements. 1961–2098, scenario driven by regionalized global general circulation model (GCM) data forced various greenhouse gas emission air- riverborne load scenarios (ranging from a pessimistic...
Abstract. Changes in the phenology of physical and ecological variables associated with climate change are likely to have significant effect on many aspects Baltic ecosystem. We apply a set phenological indicators multiple environmental measured by satellite sensors for 17–36 years detect possible changes seasonality Sea environment. temporal changes, such as earlier start summer season prolongation productive season, several ranging from basic drivers status indicators. While increasing...
To assess the impact of implementation Baltic Sea Action Plan (BSAP) on future environmental status Sea, already available uncoordinated multi-model ensemble simulations for region 21st century were analyzed. The scenario driven by regionalized global general circulation model (GCM) data using several regional climate system models and forced various greenhouse gas emission air- river-borne nutrient load scenarios following either reference conditions or BSAP. estimate uncertainties in...
Following earlier regional assessment studies, such as the Assessment of Climate Change for Baltic Sea Basin and North Region Assessment, knowledge from available literature about future scenario simulations biogeochemical cycles in their uncertainties is assessed. Uncertainties these projections are caused by climate model (including global models experimental setup), unknown nutrient load greenhouse gas emissions (or concentrations) natural variability. The determination reduction...
Abstract. Location, specific topography, and hydrographic setting together with climate change strong anthropogenic pressure are the main factors shaping biogeochemical functioning thus also ecological status of Baltic Sea. The recent decades have brought significant changes in First, rising nutrient loads from land second half 20th century led to eutrophication spreading hypoxic anoxic areas, for which permanent stratification water column limited ventilation deep-water layers made...
In this study we examine pools of carbon (C), nitrogen (N), and phosphorus (P) in the Baltic Sea, both simulated reconstructed from observations. We further quantify key fluxes C, N, P cycling. Our calculations include pelagic reservoirs as well storage active sediment layer, which allows a complete coverage overall cycling on system-scale. A striking property C versus N is that while external supplies total (TN TP) are largely balanced by internal removal processes, (TC) supply mainly...
While progress has been made in reducing external nutrient inputs to the Baltic Sea, further actions are needed meet goals of Sea Action Plan (BSAP), especially for Proper, Gulf Finland, and Riga sub-basins. We used net anthropogenic nitrogen phosphorus (NANI NAPI, respectively) accounting approach construct three scenarios reduced NANI-NAPI. Reductions assumed that manure nutrients were redistributed from areas with intense animal production focus on crop would otherwise import synthetic...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 207:13-18 (2000) - doi:10.3354/meps207013 Cyanobacteria blooms in Gulf of Finland triggered by saltwater inflow into Baltic Sea M. Kahru1,*, J.-M. Leppänen2, O. Rud3, P. Savchuk4 1Scripps Institution Oceanography, La Jolla, California 92093-0218, USA 2Finnish Institute Research, PO Box 33, 00931 Helsinki,...