Overview

The Open-Data Inventory for Anthropogenic Carbon dioxide (ODIAC) is a high-spatial resolution global emission data product of CO₂ emissions from fossil fuel combustion (Oda and Maksyutov, 2011). In 2009, the first version of ODIAC was developed by Drs. Tomohiro Oda (now at the Universities Space Research Association, USRA) and Shamil Maksyutov under the Greenhouse gases Observing SATellite (GOSAT) project at the National Institute for Environmental Studies (NIES) in Japan.

ODIAC pioneered the combined use of space-based nighttime light data and individual power plant emission/location profiles to estimate the global spatial extent of fossil fuel CO₂ emissions. With the innovative emission modeling approach, ODIAC achieved the fine picture of global fossil fuel CO₂ emissions at a 1x1km, possibly the most beautiful global picture of man-made emissions. As seen in a number of publications in the literature, the ODIAC emission data product has been widely used by the international research community for a variety of research applications (e.g. CO₂ flux inversion, urban emission estimation and observing system design experiments).

Since its original publication in 2011, the ODIAC team has made numerous modifications to the ODIAC emission model, and updated and upgraded the emission data product (see Oda et al. 2018). On this data site, the latest version of the ODIAC emission data product (ODIAC2022, 2000-2021) is available for download. Previous versions of the emission data product, including the original version (ODIAC v1.7, 1980-2007), as published by Oda and Maksyutov (2011), are also archived, but only for reference purposes. The team encourages data users to use the latest, updated emission product (currently, ODIAC2022) for their research applications, as the emission estimates included in previous versions of the data product are considered to be outdated once new product becomes available. The details of the ODIAC emission model/data product are described elsewhere (Oda and Maksyutov, 2011; Oda et al., 2018).

The development of the ODIAC emission data product has been supported by multiple sponsors, such as NIES and NASA. Currently, the ODIAC team is improving the global high-resolution spatial emission estimates using a new nighttime light data product developed at USRA under the contract from NASA (a.k.a. NASA’s Black Marble, Román el al. 2018).

What's New

May 30, 2023

The year 2022 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2022, 2000-2021) is now available for download.

Jun 14, 2021

An improved version of ODIAC2020 (ODIAC2020b, 2000-2019) is now available for download.

Dec 14, 2020

The year 2020 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2020, 2000-2019) is now available for download.

Dec 13, 2019

The year 2019 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2019, 2000-2018) is now available for download.

Jan 30, 2019

The ODIAC team estimated that the total global fossil fuel CO₂ emission hit 10 PgC in 2017. Dr. Oda and collaborators Prof Marland and Mr. Boden published their brief comment as a Correspondence in Nature.
The 10 PgC emission estimate is included in ODIAC2018.

Dec 13, 2018

The year 2018 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2018, 2000-2017) is now available for download.

Oct 27, 2017

The year 2017 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2017 (retired), 2000-2016) is now available for download.

Apr 14, 2017

DOI (Digital Object Identifier) has been minted for the ODIAC dataset. [doi : 10.17595/20170411.001]
We are now distributing the ODIAC dataset under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.

Nov 2, 2016

We found the map/coordinate information in the 1x1km GeoTIFF version of ODIAC2016 files was not accurately specified. We have fixed this issue and are distributing a revised version of 1x1km GeoTIFF ODIAC2016 files.
The 1x1deg version of ODIAC2016 files was not affected by this issue.

Sep 30, 2016

The year 2016 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2016, 2000-2015) is now available for download.

May 19, 2016

We found antarctic fishery emissions (<3K TC/yr) were distributed incorrectly using a vertically flipped land mask data in the 1x1deg netCDF version of ODIAC2015a files. We have stopped the data distribution since 19th of May and we are now distributing a revised version of 1x1deg ODIAC2015a files. The 1x1km version of ODIAC2015a files was not affected by the issue.

Apr 19, 2016

The year 2015 version of ODIAC fossil fuel CO₂ emission dataset (ODIAC2015a (retired), 2000-2014) is now available for download. ODIAC2015a is based on emission estimates projected using the latest global fuel use statistics from BP.

Aug 19, 2015

This website "ODIAC Fossil Fuel Emission Dataset" is open.