Steven van Heuven
A5002878949- Atmospheric and Environmental Gas Dynamics
- Ocean Acidification Effects and Responses
- Marine and coastal ecosystems
- Methane Hydrates and Related Phenomena
- Marine Biology and Ecology Research
- Oceanographic and Atmospheric Processes
- Nuclear Physics and Applications
- Nuclear and radioactivity studies
- Graphite, nuclear technology, radiation studies
- Atmospheric chemistry and aerosols
- Geology and Paleoclimatology Research
- Atmospheric Ozone and Climate
- Arctic and Antarctic ice dynamics
- Marine and fisheries research
- Air Quality Monitoring and Forecasting
- Coral and Marine Ecosystems Studies
- Marine Bivalve and Aquaculture Studies
- Isotope Analysis in Ecology
- Global Energy and Sustainability Research
- Offshore Engineering and Technologies
- Marine and environmental studies
- Spacecraft and Cryogenic Technologies
- Carbon Dioxide Capture Technologies
- Maritime Navigation and Safety
- Climate variability and models
University of Groningen
2015-2025
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2015-2021
Universidade do Estado do Rio de Janeiro
2021
National Oceanic and Atmospheric Administration
2020
NOAA Atlantic Oceanographic and Meteorological Laboratories
2020
Royal Netherlands Institute for Sea Research
2009-2018
Utrecht University
2017-2018
Woods Hole Oceanographic Institution
2018
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – global budget is important to better understand cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components uncertainties. CO2 from fossil fuels industry (EFF) are based on energy statistics cement production data, respectively, while land-use change (ELUC),...
We quantify the oceanic sink for anthropogenic carbon dioxide (CO2) over period 1994 to 2007 by using observations from global repeat hydrography program and contrasting them 1990s. Using a linear regression-based method, we find increase in CO2 inventory of 34 ± 4 petagrams (Pg C) between 2007. This is equivalent an average uptake rate 2.6 0.3 Pg C year-1 represents 31 4% emissions this period. Although ocean estimate consistent with expectation having increased proportion rise atmospheric...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets a methodology quantify all major components budget, including uncertainties, based on combination range data, algorithms, statistics, model estimates interpretation by broad scientific community. We discuss...
Abstract. Version 2 of the Global Ocean Data Analysis Project (GLODAPv2) data product is composed from 724 scientific cruises covering global ocean. It includes assembled during previous efforts GLODAPv1.1 (Global version 1.1) in 2004, CARINA (CARbon IN Atlantic) 2009/2010, and PACIFICA (PACIFic ocean Interior CArbon) 2013, as well an additional 168 cruises. for 12 core variables (salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, total alkalinity, pH, CFC-11,...
Abstract. The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity carbon dioxide) values for the global surface oceans and coastal seas with regular updates. Version 3 SOCAT has 14.7 million from 3646 data sets covering years 1957 to 2014. This latest version an additional 4.6 relative 2 extends record 2011 also significantly increases availability 2005 2013. average approximately 1.2 water per year 2006 2012. Quality documentation improved. A new feature set...
Several studies have suggested that the carbon sink in Southern Ocean-the ocean's strongest region for uptake of anthropogenic CO2 -has weakened recent decades. We demonstrated, on basis multidecadal analyses surface ocean observations, this weakening trend stopped around 2002, and by 2012, Ocean had regained its expected strength based growth atmospheric CO2. All three sectors contributed to reinvigoration sink, yet differences processes between exist, related a tendency toward zonally more...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets a methodology quantify all major components budget, including uncertainties, based on combination range data, algorithms, statistics model estimates interpretation by broad scientific community. We discuss...
Abstract. We present a mapped climatology (GLODAPv2.2016b) of ocean biogeochemical variables based on the new GLODAP version 2 data product (Olsen et al., 2016; Key 2015), which covers all basins over years 1972 to 2013. The quality-controlled and internally consistent GLODAPv2 was used create global 1° × climatologies salinity, temperature, oxygen, nitrate, phosphate, silicate, total dissolved inorganic carbon (TCO2), alkalinity (TAlk), pH, CaCO3 saturation states using Data-Interpolating...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere – "global budget" is important to better understand global cycle, support development climate policies, project future change. Here we describe data sets methodology quantify five major components budget uncertainties. CO2 from fossil fuels industry (EFF) are based on energy statistics cement production data, respectively, while land-use...
Abstract. The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface to bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis water samples. This update GLODAPv2, v2.2019, adds data from 116 cruises the previous version, extending its coverage in time 2013 2017, while also adding some prior years. GLODAPv2.2019 includes measurements more than 1.1...
Abstract. The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis samples. GLODAPv2.2020 update the previous version, GLODAPv2.2019. major changes are data from 106 new cruises added, extension time coverage to 2019, inclusion available (also for historical cruises) discrete fugacity CO2...
Abstract. The Surface Ocean CO2 Atlas (SOCAT), an activity of the international marine carbon research community, provides access to synthesis and gridded fCO2 (fugacity dioxide) products for surface oceans. Version 2 SOCAT is update previous release (version 1) with more data (increased from 6.3 million 10.1 water values) extended coverage (from 1968–2007 1968–2011). quality control criteria, while identical in both versions, have been applied strictly version than 1. website...
Abstract. The original goal of the CARINA (Carbon in Atlantic Ocean) data synthesis project was to create a merged calibrated set from open ocean subsurface measurements by European scientists that would be generally useful for biogeochemical investigations North and particular, studies involving carbon system. Over time geographic extent expanded include entire Atlantic, Arctic Southern Ocean international collaboration broadened significantly. In this paper we give brief history project,...
Abstract. Data on the carbon and relevant hydrographic hydrochemical parameters from previously not publicly available cruises in Arctic, Atlantic Southern Ocean have been retrieved merged to a new data base: CARINA (CARbon IN Atlantic). These gone through rigorous quality control (QC) procedures assure highest possible consistency. All were subject primary QC; process which are studied order identify outliers obvious errors. Additionally, secondary QC was performed for several of measured...
Concentrations of dissolved (<0.2 μ m) Fe (DFe) in the Arctic shelf seas and surface waters central Ocean are presented. In Barents Kara seas, near‐surface DFe minima indicate depletion by phytoplankton growth. Below surface, lower concentrations Sea (∼0.4–0.6 nM) than (∼0.6–0.8 likely reflect scavenging removal or biological DFe. Very high (>10 bottom Laptev may be attributed to either sediment resuspension, sinking brine regeneration layers. A significant correlation (R 2 = 0.60)...
Abstract. The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface-to-bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis samples. GLODAPv2.2021 update the previous version, GLODAPv2.2020 (Olsen et al., 2020). major changes are as follows: data from 43 new cruises were added, coverage was extended until 2020, all missing temperatures...
We produced 204 monthly maps of the air–sea CO2 flux in Arctic north 60°N, including Ocean and its adjacent seas, from January 1997 to December 2013 by using a self-organizing map technique. The partial pressure (pCO2) surface water data were obtained shipboard underway measurements or calculated alkalinity total inorganic carbon samples. Subsequently, we investigated basin-wide distribution seasonal interannual variability fluxes. 17-year annual mean shows that all areas seas net sinks....
Enteric fermentation and manure methane emissions from livestock are major anthropogenic greenhouse gas emissions. In general, direct measurements of farm-scale scarce due to the source complexity limitations existing atmospheric sampling methods. Using an innovative UAV-based active AirCore system, we have performed accurate CH4 mole fractions downwind a dairy cow farm in Netherlands on four individual days during period March 2017 2019. The total emission rates were determined using mass...
Abstract. Recent observations and modelling studies suggest that biogeochemical changes can mask atmospheric CO2-induced pH decreases. Data collected by the Dutch monitoring authorities in different coastal systems (North Sea, Wadden Ems-Dollard, Eastern Scheldt estuary) since 1975 provide an excellent opportunity to test whether this is case zone. The time-series were analysed using Multi-Resolution Analysis (MRA) which resulted identification of system-dependent patterns on both seasonal...
New observations from the North Sea, a NW European shelf sea, show that between 2001 and 2005 CO 2 partial pressure ( p ) in surface waters rose by 22 μ atm, thus faster than atmospheric , which same period approximately 11 atm. The surprisingly rapid decline air‐sea difference (Δ is primarily response to an elevated water column inventory of dissolved inorganic carbon (DIC), which, turn, reflects mostly anthropogenic input rather natural interannual variability. resulting buffering capacity...