Harmonized Soil Carbon Database

"This state-of-the-art database was established by IIASA and FAO in partnership with:

About HWSD

HWSD has two main goals:

  • To increase the quantity and quality of data available by capturing data at a grid cell size of 30 arc seconds of longitude and latitude (approximately, l km);
  • To harmonize and expand soil attribute information (texture, composition) with recently collected soil data."


Years of Record

temporal metadataID:


Spatial Resolution

21600x43200 [0.00833333] | 0.9 degree x 1.25 degree)

Ocean or Land

Land Only

Vertical Levels

Input Data

Mixture of existing products

Earth system components and main variables

Suggested Data Citation

FAO/IIASA/ISRIC/ISSCAS/JRC, 2012. Harmonized World Soil Database (version 1.2). FAO, Rome, Italy and IIASA, Laxenburg, Austria.

Cite this page

National Center for Atmospheric Research Staff (Eds). Last modified 08 Dec 2017. "The Climate Data Guide: Harmonized Soil Carbon Database." Retrieved from https://climatedataguide.ucar.edu/climate-data/harmonized-soil-carbon-database.

Acknowledgement of any material taken from this page is appreciated. On behalf of experts who have contributed data, advice, and/or figures, please cite their work as well.