Global Gridded GDP: Historical and Future Projections

Global data provides historical annual GDP from 2000 to 2020 and future projections from 2025 to 2100 under five Shared Socioeconomic Pathways (SSPs). The dataset consists of 101 geospatial raster images at 1 km and 0.25-degree resolutions, covering all land areas from 90°S to 90°N and 180°W to 180°E. Values are expressed in purchasing power parity (PPP) 2005 international dollars, enabling direct comparison between historical and projected economic activity.

Use Cases

• Modeling climate-economy interactions based on SSP-aligned GDP projections.
• Analyzing spatial patterns of economic activity at a 1 km resolution.
• Comparing historical GDP trends (2000-2020) against future scenario pathways.
• Conducting regional vulnerability or exposure studies using gridded economic data.

Strengths

• Provides a long time series covering 2000-2100, including both historical data and future projections.
• Offers high spatial detail with data at 1 km and 0.25-degree resolutions.
• Ensures comparability by using a consistent unit (PPP 2005 international dollars) across all time periods.
• Aligns with established scenario frameworks through its use of five Shared Socioeconomic Pathways (SSPs).

Limitations

• Key metadata such as row count, file size, and specific column names are not provided across sources.
• The dataset marks oceans, Antarctica, and depopulated areas as zero, which may not distinguish between true zero GDP and no-data values.
• The exact date of the last update is unknown, affecting assessments of data freshness.

Provenance

Source

Tingting Wang, Chinese Academy of Sciences, based on an extension of Version 5 from Zenodo.

Collection Method

Gridded spatial downscaling of national or regional GDP estimates, likely consistent with the cited article.

Time Range

2000 to 2100

Geography

Global land coverage (90°S to 90°N, 180°W to 180°E)