Historical Croplands Dataset, 1700-1992

This dataset is described in

Ramankutty, N., and J.A. Foley (1999). Estimating historical changes in global land cover: croplands from 1700 to 1992, Global Biogeochemical Cycles 13(4), 997-1027.

The data is available in two formats -- NetCDF and ArcINFO ASCII snapshots, both at 0.5 degree resolution.

The NetCDF download (46MB) contains the following files:
1. README
2. crop_1700-1992_v1.0.nc.gz - the global historical croplands data set
3. version 1.0. file format = NetCDF. compressed using the Unix 'gzip' command, approximately 48 Mbytes compressed, and 304 Mbytes uncompressed
5. readnc.f - a FORTRAN program to read the NetCDF files.
6. ies-io.f - a FORTRAN program that contains NetCDF subroutines.
7. makefile - a makefile to compile the programs used to read the NetCDF files.

If you download this dataset, please contact Navin Ramankutty. We are very interested to know how our data is being used and we will also keep you informed of any updates to the dataset.

PLEASE NOTE: this global dataset is meant to be used only for continental to global scale applications. Use caution when using this dataset at local scales.

Download Historical Cropland netCDF Dataset, 1700-1992 (46MB)
Download Historical Cropland ArcINFO ASCII Dataset, 1700 snapshot (56K)
Download Historical Cropland ArcINFO ASCII Dataset, 1750 snapshot (60K)
Download Historical Cropland ArcINFO ASCII Dataset, 1800 snapshot (64K)
Download Historical Cropland ArcINFO ASCII Dataset, 1850 snapshot (64K)
Download Historical Cropland ArcINFO ASCII Dataset, 1870 snapshot (68K)
Download Historical Cropland ArcINFO ASCII Dataset, 1890 snapshot (72K)
Download Historical Cropland ArcINFO ASCII Dataset, 1900 snapshot (72K)
Download Historical Cropland ArcINFO ASCII Dataset, 1910 snapshot (76K)
Download Historical Cropland ArcINFO ASCII Dataset, 1930 snapshot (76K)
Download Historical Cropland ArcINFO ASCII Dataset, 1950 snapshot (80K)
Download Historical Cropland ArcINFO ASCII Dataset, 1970 snapshot (80K)
Download Historical Cropland ArcINFO ASCII Dataset, 1990 snapshot (84K)

Updated: 3/6/13

SAGE is a Research Center of the Nelson Institute for Environmental Studies at the University of Wisconsin-Madison

Contact us with feedback, questions or accessibility issues


Copyright © 2012 Board of Regents of the University of Wisconsin System