10.1594/WDCC/RECON_LAND_COVER_800-1992
Pongratz, Julia
Julia
Pongratz
Max-Planck-Institut fuer Meteorologie (MPI-M)
Reick, Christian
Christian
Reick
Max-Planck-Institut fuer Meteorologie (MPI-M)
Raddatz, Thomas
Thomas
Raddatz
Max-Planck-Institut fuer Meteorologie (MPI-M)
Claussen, Martin
Martin
Claussen
Max-Planck-Institut fuer Meteorologie (MPI-M)
Reconstruction of global land use and land cover AD 800 to 1992
World Data Center for Climate (WDCC) at DKRZ
2007
Climate
ESM_Forcing_and_Verification
historic land cover
Pongratz, Julia
Julia
Pongratz
Max-Planck-Institut fuer Meteorologie (MPI-M)
2007-09-11
en
Digital
10.1029/1999GB001232
10.1029/1999GB900046
10.1029/2007GB003153
10.1890/1540-9295(2003)001[0038:GSHTEC]2.0.CO;2
43459425508 Bytes
application/x-netcdf
1
Open access data at least for academic use.
Project: Earth System Model Forcing and Verification - The project consolidates data entities which are suitable to force and/or to verify Earth system models. The archived data entities contain data and data products mainly from observations or reconstruction.
The eVolv2k project is supported by the Deutsche Forschungsgemeinschaft (DFG) in the framework of the priority programme “Antarctic Research with comparative investigations in Arctic ice areas” through grant TO 967/1-1.
Summary: This dataset contains reconstructions of land use and land cover from AD 800 to 1992 in global coverage at 30 minute resolution. After AD 1700, the data is based on Ramankutty and Foley (1999), Foley et al. (2003) and Klein Goldewijk (2001); for earlier times, land use is estimated with a country-based method that uses national population data (McEvedy and Jones, 1978) as a proxy for agricultural activity. For each year, a map is provided that contains 14 fields. Each field holds the fraction the respective vegetation type covers in the total grid cell (0-1). The vegetation types comprise three human land use types (crop, C3 pasture and C4 pasture) and 11 natural vegetation types (based on the potential vegetation map of Ramankutty and Foley, 1999). For the time period prior to AD 1700 two additional land cover scenarios are provided (scenmin and scenmax). They quantify the uncertainties associated with this approach, through technological progress in agriculture and uncertainties in population estimates.
The additional datasets combine the known uncertainties in a way to give the most extreme range for possible estimates of land use area for each year before 1700. The datasets thus do not represent consistent time series of plausible alternative scenarios, but indicate, for each year, a maximum range outside which estimates of land use area are unrealistic. See citations and references for details.
Vegetation types:
1 Tropical evergreen forest
2 Tropical deciduous forest
3 Temperate evergreen broadleaf forest
4 Temperate/boreal deciduous broadleaf forest
5 Temperate/boreal evergreen conifers
6 Temperate/boreal deciduous conifers
7 Raingreen shrubs
8 Summergreen shrubs
9 C3 natural grasses
10 C4 natural grasses
11 Tundra
12 Crop
13 C3 pasture
14 C4 pasture
World
-180.0
180.0
-90
90