IPCC SRES Global Gridded Emissions Projections to 2100

Projected global emissions for five reactive gases are mapped on a 1x1 degree grid every decade from 1990 to 2100. The dataset is based on the IPCC Special Report on Emissions Scenarios (SRES) Version 1.1. It was produced by the Intergovernmental Panel on Climate Change and distributed by Columbia University's CIESIN.

Use Cases

• Model atmospheric concentrations of Methane (CH4) and Nitrogen Oxides (NOx) using their gridded emissions as inputs to chemistry-climate models.
• Analyze spatial and temporal trends in Sulfur Dioxide (SO2) emissions across the 1x1 degree grid to study potential impacts on air quality and aerosols.
• Compare projected emissions pathways for Carbon Monoxide (CO) and Non-Methane Volatile Organic Compounds (NMVOC) between different SRES scenarios over the 1990-2100 time range.
• Downscale global 1x1 degree gridded data to regional models by using the spatial emissions fields for specific gases as boundary conditions.

Strengths

• Covers a 110-year projection period from 1990 to 2100.
• Provides emissions for five specific reactive gases: CH4, CO, NOx, NMVOC, and SO2.
• Data is spatially resolved on a consistent global 1x1 degree grid.

Limitations

• Projection data is based on the older SRES framework, not the newer Representative Concentration Pathways (RCPs) or Shared Socioeconomic Pathways (SSPs).
• Temporal resolution is limited to decadal snapshots, not annual data.
• Specific row counts, file sizes, and validation metrics for the gridded data are unknown.

Provenance

Source

Intergovernmental Panel on Climate Change (IPCC), distributed by Columbia University Center for International Earth Science Information Network (CIESIN).

Collection Method

Gridded emissions derived from the IPCC SRES Emissions Scenarios Data Set Version 1.1.

Time Range

1990 to 2100 (projections at 10-year intervals).

Freshness

Projections extend to 2100, but the underlying SRES scenarios were published around 2000.

Geography

Global coverage on a 1x1 degree latitude/longitude grid.