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Methodology

This section presents the general principles of EDGARv4 such as source categories, geographical definitions and the methodology and data for each main source category. Main differences compared to earlier EDGAR datasets are:

  • calculation of emissions using a technology based emission factor approach (compared to an average emission factor approach),
  • spatial allocation of emissions on 0.1 degree grid cells,
  • availability of annual emissions data for the period 1970-2008.

Other features that are being tested are temporal profiles of emissions and effective emission height attribution. Detailed descriptions of the emission datasets are in preparation.

Index:

1. Definitions

1.1 Emissions

(See emissions section to check which emissions data are currently available for download.)

Emissions are calculated for the following substances:

  • Direct greenhouse gases: Carbon Dioxide (CO2), Methane (CH4), Nitrous Oxide (N2O), Hydrofluorocarbons (HFC-23, 32, 125, 134a, 143a, 152a, 227ea, 236fa, 245fa, 365mfc, 43-10-mee), Perfluorocarbons (PFCs: CF4, C2F6, C3F8, c-C4F8, C4F10, C5F12, C6F14, C7F16), Sulfur Hexafluoride (SF6), Nitrogen Trifluoride (NF3) and Sulfuryl Fluoride (SO2F2).
  • Ozone precursor gases: Carbon Monoxide (CO), Nitrogen Oxides (NOx), Non-Methane Volatile Organic Compounds (NMVOC) and Methane (CH4).
  • Acidifying gases: Ammonia (NH3), Nitrogen oxides (NOx) and Sulfur Dioxide (SO2).
  • Primary particulates: Fine Particulate Matter (PM10) - Carbonaceous speciation (BC , OC) is under progress.
  • Stratospheric Ozone Depleting Substances: Chlorofluorocarbons (CFC-11, 12, 113, 114, 115), Halons (1211, 1301, 2402), Hydrochlorofluorocarbons (HCFC-22, 124, 141b, 142b), Carbon Tetrachloride (CCl4), Methyl Bromide (CH3Br) and Methyl Chloroform (CH3CCl2).

1.2 Source categories

List of EDGARv4 standard reporting codes (IPCC codes). By clicking on the IPCC code (first column) a factsheet describing the methodology and data for each main source category can be viewed.

IPCC code Source name Comment

1. Energy: Fuel Combustion (1A) and Fugitive emissions from fuel (1B)

1A1a

Public electricity and heat production

Including autoproducers of electricity and heat

1A1bc

Other energy industries

 

1A2

Manufacturing industries and construction

 

1A3a

Domestic aviation

 

1A3b

Road transportation

 

1A3c

Rail transportation

 

1A3d

Domestic navigation

 

1A3e

Other transportation

 

1A4

Residential and other sectors

 

1B1

Fugitive emissions from solid fuels

 

1B2

Fugitive emissions from oil and gas

Including venting and flaring

1C1

Memo: International aviation

 

1C2

Memo: International navigation

 

2. Industrial Processes (non-combustion) and 3. Product Use

2A

Production of minerals

 

2B

Production of chemicals

 

2C

Production of metals

 

2D

Production of pulp/paper/food/drink

 

2E

Production of halocarbons and SF6

 

2F1

Refrigeration and air conditioning

 

2F2

Foam blowing

 

2F3

Fire extinguishers

 

2F4

Aerosols

 

2F5

F-gas as solvent

 

2F7

Semiconductor/electronics manufacture

Including FPDs and PV cells

2F8

Electrical equipment

 

2F9

Other F-gas use

 

2G

Non-energy use of lubricants/waxes (CO2)

 

3

Solvent and other product use

 

4. Agriculture (including Savanna burning)

4A

Enteric fermentation

 

4B

Manure management

 

4C

Rice cultivation

 

4D1

Direct soil emissions

 

4D2

Manure in pasture/range/paddock

 

4D3

Indirect N2O from leaching/runoff in agriculture

 

4D4

Other direct soil emissions

Including CO2 from urea application and soil liming

4E

Savanna burning

 

4F

Agricultural waste burning

 

5. Land Use Change and Forestry

5A

Forest fires

Including peat fires

5C

Grassland fires

 

5D

Decay of wetlands/peatlands

Included in 5F2 Post-burn decay

5F

Other vegetation fires

 

5F2

Forest Fires-Post burn decay

Incl. decomposition of peatlands due to drainage

6. Waste

6A

Solid waste disposal on land

 

6B

Wastewater handling

 

6C

Waste incineration

 

6D

Other waste handling

 

7. Other anthropogenic sources

7A

Fossil fuel fires

Includes underground coal fires and Kuwait oil fires

7B

Indirect N2O from non-agricultural NOx

 

7C

Indirect N2O from non-agricultural NH3

 

7D

Other anthropogenic sources

 

1.3 Countries

Emissions in EDGARv4 are calculated by individual countries using country-specific information. The countries are organized in different world regions for illustration purposes. Emissions of some small countries are presented together with other countries (e.g. Monaco with France) depending on country definition and availability of activity statistics.

The following table provides an overview of the different world regions and countries included:

world regions

World region   Countries included

Canada

 

Canada

USA

 

United States of America , Saint Pierre and Miquelon, United States Minor Outlying Islands

Mexico

 

Mexico

Rest of Central America

 

Aruba, Anguilla, Netherlands Antilles, Antigua and Barbuda,Bahamas, Belize, Bermuda, Barbados, Costa Rica, Cuba, Cayman Islands, Dominica, Dominican Republic, Guadeloupe, Grenada, Guatemala, Honduras, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, Montserrat, Martinique, Nicaragua, Panama, Puerto Rico, El Salvador, Turks and Caicos Islands, Trinidad and Tobago, Saint Vincent and the Grenadines, British Virgin Islands, U.S. Virgin Islands

Brazil

 

Brazil

Rest of South America

 

Argentina, Bolivia, Bouvet Island, Chile, Colombia, Ecuador, Falkland Islands (Malvinas), French Guiana, Guyana, Peru, Paraguay, South Georgia and the South Sandwich Islands, Suriname, Uruguay, Venezuela

Northern Africa

 

Algeria, Egypt, Western Sahara, Libyan Arab Jamahiriya, Morocco, Tunisia

Western Africa

 

Benin, Burkina Faso, Central African Republic, Côte d'Ivoire, Cameroon, Democratic Republic of the Congo, Congo, Cape Verde, Gabon, Ghana, Guinea, Gambia, Guinea-Bissau, Equatorial Guinea, Liberia, Mali, Mauritania, Niger, Nigeria, Senegal, Saint Helena, Sierra Leone, Sao Tome and Principe, Chad, Togo

Eastern Africa

 

Burundi, Comoros, Djibouti, Eritrea, Ethiopia, Kenya, Madagascar, Mauritius, Mayotte, Réunion, Rwanda, Sudan, Somalia, Seychelles, Uganda

Southern Africa

 

Angola, Botswana, Lesotho, Mozambique, Malawi, Namibia, Swaziland, United Republic of Tanzania, South Africa, Zambia, Zimbabwe

OECD Europe

 

Andorra (included in Spain), Austria, Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, Faroe Islands, United Kingdom, Gibraltar, Greece, Greenland, Ireland, Iceland, Italy, Liechtenstein (included in Switzerland), Luxembourg, Monaco (included in France), Netherlands, Norway, Portugal, San Marino (included in Italy), Sweden, Vatican City State (included in Italy)

Central Europe

 

Albania, Bulgaria, Bosnia and Herzegovina, Cyprus, Czech Republic, Estonia, Croatia, Hungary, Lithuania, Latvia, former Yugoslav Republic of Macedonia, Malta, Montenegro, Poland, Romania, Serbia and Montenegro, Slovakia, Slovenia

Turkey

 

Turkey

Ukraine +

 

Belarus, Republic of Moldova, Ukraine

Asia-Stan

 

Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, Uzbekistan

Russia +

 

Armenia, Azerbaijan, Georgia, Russian Federation

Middle East

 

United Arab Emirates, Bahrain, Islamic Republic of Iran, Iraq, Israel (including Palestinian Territory), Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syrian Arab Republic, Yemen

India +

 

Afghanistan, Bangladesh, Bhutan, India, British Indian Ocean Territory, Sri Lanka, Maldives, Nepal, Pakistan

Korea

 

Republic of Korea, Democratic People's Republic of Korea

China +

 

China, Hong Kong, Macao, Mongolia, Taiwan

Southeastern Asia

 

Brunei Darussalam, Cambodia, Lao People's Democratic Republic, Myanmar, Malaysia, Philippines, Singapore, Thailand, Timor-Leste, Viet Nam

Indonesia +

 

Indonesia, Papua New Guinea

Japan

 

Japan

Oceania

 

American Samoa, French Southern Territories, Australia, Cocos (Keeling) Islands, Cook Islands, Christmas Island, Fiji, Micronesia, Federated States of, Guam, Heard Island and McDonald Islands, Kiribati, Marshall Islands, Northern Mariana Islands, New Caledonia, Norfolk Island, Niue, Nauru, New Zealand, Pitcairn, Palau, French Polynesia, Solomon Islands,Tokelau, Tonga, Tuvalu, Vanuatu, Wallis and Futuna, Samoa

Antarctica

 

Antarctica

Int. Shipping

 

International shipping (not allocated to countries)

Int. Aviation

 

International aviation (not allocated to countries)

 

2. Calculation of emissions by sector

This section provides information about the methodology applied to calculate emissions that are available for download. Detailed information by main source category can be viewed through the source category table in section 1.2. By clicking on the IPCC code (first column) a factsheet describing the methodology and data for each main source category can be viewed.

2.1 Calculation of emissions by country and sector

Emissions are calculation for the source categories described in section 1.2 and for the countries described in section 1.3 by application of an technology based emission factor calculation. This means that for each considered country-sector combination data is included for the parameters mentioned in the following equation:

Emissions (EM) for a country C are calculated for each compound x on an annual basis (y) and sector wise (for i sectors, multiplying on the one hand the country-specific activity data (AD), quantifying the human activity for each of the i sectors, with the mix of j technologies (TECH) for each sector i, and with their abatement percentage by one of the k end-of-pipe (EOP) measures for each technology j, and on the other hand the country-specific emission factor (EF) for each sector i and technology j with relative reduction (RED) of the uncontrolled emission by installed abatement measure k, as summarized in the following formula:Formula: Calculation of emissions by country and sector

These parameter data are included in the calculations based on evaluation of scientific literature, inventory guidance, inventory reports, industry reports, dataset documentation or when data was found not available or incomplete own parameter calculations have been made. More information by main source category is provided in section 2.3.

2.2 Spatial allocation

Emissions by country and grid are allocated on a spatial grid to provide gridded emissions dataset for atmospheric modeling. To facilitate application of emissions data in local, regional and global modeling a spatial grid of 0.1 degree has been defined.

For this purpose a geographical database has been build using grid maps with 0.1°x0.1° resolution based on data such as location of energy and manufacturing facilities, road networks, shipping routes, human and animal population density and agricultural land use. A screening of the available geographic datasets has been performed for each emission source category with as main criteria coherent spatial coverage and reliability. The input datasets where point, line and area grids at various resolutions and using GIS techniques for conversion, resampling and aggregation the dataset have been included in the EDGAR 0.1 degree resolution grid. The country grid present duplicate cells wherever national borders are intersected and in this case the percent value of each country is assigned except for point source that are included as is.

2.3 Methodology and data

An overview of methodology and data per main emission source category is provided for the greenhouse gases in IEA part III: GHG.

An overview of the main differences between EDGAR v4.2 and EDGAR v4.1 is given on http://edgar.jrc.ec.europa.eu/overview.php?v=42.

Mission

As the science and knowledge service of the European Commission, the Joint Research Centre's mission is to support EU policies with independent evidence throughout the whole policy cycle.