Shin‐Ichiro Nakaoka
A5031823993- Atmospheric and Environmental Gas Dynamics
- Ocean Acidification Effects and Responses
- Marine and coastal ecosystems
- Maritime Navigation and Safety
- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Methane Hydrates and Related Phenomena
- Oceanographic and Atmospheric Processes
- Maritime Transport Emissions and Efficiency
- Carbon Dioxide Capture Technologies
- Cardiovascular and Diving-Related Complications
- Climate Change Policy and Economics
- Climate variability and models
- Marine Biology and Ecology Research
- Hydrocarbon exploration and reservoir analysis
- Arctic and Antarctic ice dynamics
- CO2 Sequestration and Geologic Interactions
- Microbial Community Ecology and Physiology
- Smart Materials for Construction
- Fire effects on ecosystems
- Arctic and Russian Policy Studies
- Air Quality Monitoring and Forecasting
- Isotope Analysis in Ecology
- Geology and Paleoclimatology Research
- Meteorological Phenomena and Simulations
National Institute for Environmental Studies
2016-2025
Max Planck Institute for Meteorology
2018
Instytut Oceanologii Polskiej Akademii Nauk
2013
Polish Academy of Sciences
2013
Japan Meteorological Agency
2013
Hokkaido University
2013
Meteorological Research Institute
2013
National Institute of Polar Research
2009
Tohoku University
2009
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate – “global budget” is important to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use...
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. Fossil CO2 (EFF) are based on energy statistics cement production data, while from land use change (ELUC), mainly...
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. Fossil CO2 (EFF) are based on energy statistics cement production data, while from land use land-use change (ELUC), mainly...
Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize datasets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodologies quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
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),...
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 all major components budget, including uncertainties, based on combination a range data, algorithms, statistics, model estimates interpretation by broad scientific...
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. 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...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
Abstract. The Atlantic Ocean is one of the most important sinks for atmospheric carbon dioxide (CO2), but this sink has been shown to vary substantially in time. Here we use surface ocean CO2 observations estimate and temporal variability from 1998 through 2007 Ocean. We benefit (i) a continuous improvement observations, i.e. Surface Atlas (SOCAT) v1.5 database (ii) newly developed technique interpolate space In particular, two-step neural network approach reconstruct basin-wide monthly maps...
Abstract. Using measurements of the surface-ocean CO2 partial pressure (pCO2) and 14 different pCO2 mapping methods recently collated by Surface Ocean Mapping intercomparison (SOCOM) initiative, variations in regional global sea–air fluxes are investigated. Though available use widely approaches, we find relatively consistent estimates seasonality, line with previous estimates. In terms interannual variability (IAV), all estimate largest to occur eastern equatorial Pacific. Despite...
Abstract. A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated the marine science community in 2007 with aim providing a comprehensive, regularly updated, CO2, which had subject to quality control (QC). Many additional data, not yet made public via Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from...
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. Accurate national scale greenhouse gas source and sink estimates are essential to track climate mitigation efforts. Inverse models can complement inventory-based approaches for emissions reporting by providing independent underpinned atmospheric measurements, yet few nations have developed this capability carbon dioxide (CO2). We present results from a decade-long (2011–2020) inverse modelling study New Zealand, which suggests persistent in Zealand’s terrestrial biosphere (-171 ±...
Abstract. As a response to public demand for well-documented, quality controlled, publically available, global surface ocean carbon dioxide (CO2) data set, the international marine science community developed Surface Ocean CO2 Atlas (SOCAT). The first SOCAT product is collection of 6.3 million controlled from oceans and coastal seas, spanning four decades (1968–2007). gridded presented here second come project. Recognizing that some groups may have trouble working with millions measurements,...
Abstract A feed-forward neural network is used to create a monthly climatology of the sea surface fugacity CO2 (fCO2) on 1° × spatial resolution. Using 127 880 data points from 1990 2011 in track-gridded database Surface Ocean Atlas version 2.0 (Bakker et al.), model yields global mean fCO2 increase rate 1.50 μatm yr−1. The was normalize multiple years’ observations reference year 2000. total 73 265 normalized were climatology. simulates distributions that agree well with and an...
Abstract. This study uses a neural network technique to produce maps of the partial pressure oceanic carbon dioxide (pCO2sea) in North Pacific on 0.25° latitude × longitude grid from 2002 2008. The pCO2sea distribution was computed using self-organizing map (SOM) originally utilized Atlantic. Four proxy parameters – sea surface temperature (SST), mixed layer depth, chlorophyll concentration, and salinity (SSS) are used during training phase enable resolve nonlinear relationships between...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize data sets methodology quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC), mainly...
Abstract. Marine diazotrophs convert dinitrogen (N2) gas into bioavailable nitrogen (N), supporting life in the global ocean. In 2012, first version of oceanic diazotroph database (version 1) was published. Here, we present an updated 2), significantly increasing number situ diazotrophic measurements from 13 565 to 55 286. Data points for N2 fixation rates, cell abundance, and nifH gene copy abundance have increased by 184 %, 86 809 respectively. Version 2 includes two new data sheets...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesise datasets methodologies quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC) data...
Abstract. Accurate assessment of anthropogenic carbon dioxide (CO2) emissions and their redistribution among the atmosphere, ocean, terrestrial biosphere in a changing climate is critical to better understand global cycle, support development policies, project future change. Here we describe synthesize datasets methodologies quantify five major components budget uncertainties. Fossil CO2 (EFOS) are based on energy statistics cement production data, while from land-use change (ELUC) data...
Abstract. Air–sea CO2 fluxes over the Pacific Ocean are known to be characterized by coherent large-scale structures that reflect not only ocean subduction and upwelling patterns, but also combined effects of wind-driven gas exchange biology. On largest scales, a large net influx into extratropics is associated with robust seasonal cycle, efflux from tropics substantial interannual variability. In this work, we have synthesized estimates air–sea flux variety products, drawing upon approaches...
Abstract The Southern Ocean (SO) carbon sink has strengthened substantially since the year 2000, following a decade of weakening trend. However, surface ocean p CO 2 data underlying this trend reversal are sparse, requiring substantial amount extrapolation to map data. Here we use nine different mapping products investigate SO trends and their sensitivity procedure. We find robust temporal coherence for entire SO, with eight agreeing on sign decadal trends, that is, in 1990s (on average 0.22...
Abstract. Time series of the atmospheric O2∕N2 ratio and CO2 mole fraction flask samples obtained from National Institute for Environmental Studies' (NIES's) sampling network are presented. The includes two ground sites, Hateruma island (HAT; 24.05∘ N, 123.81∘ E) Cape Ochiishi (COI; 43.17∘ 145.50∘ E), cargo ships regularly sailing in western Pacific. Based on temporal changes fossil-fuel-derived emissions, global burden potential oxygen (APO), which were calculated observed according to APO...