Sources of IPUMS Terra Raster Data

Climatic Research Unit Time Series (CRUTS_322)
Data provider Climate Research Unit
Data access CEDA Archive CRU TS3.22
Notes Version 3.22, used in IPUMS Terra, has been superseded. The version 3.22 data are available from the CEDA Archive, linked above.
The current version of the time series data, as well as related datasets and other information are available from the CRU data page.
Citation University of East Anglia Climatic Research Unit; Harris, I.C.; Jones, P.D. (2014): CRU TS3.22: Climatic Research Unit (CRU) Time-Series (TS) Version 3.22 of High Resolution Gridded Data of Month-by-month Variation in Climate (Jan. 1901- Dec. 2013). NCAS British Atmospheric Data Centre, 23 September 2014.
DOI 10.5285/18BE23F8-D252-482D-8AF9-5D6A2D40990C
Data provider WorldClim
Data access WolrdClim version 2
Notes The version used in IPUMS Terra is obsolete and no longer available. The updated version 2, linked above, covers the period 1970-2000 and includes an extended set of variables.
Citation Fick, S.E., R.J. Hijmans (2017), WorldClim 2: new 1-km spatial resolution climate surfaces for global land areas. International Journal of Climatology 37(12): 4302-4315
DOI 10.1002/joc.5086
Land Cover
MODIS Land Cover Type (MODIS_IGBP)
Data provider NASA EOSDIS Land Processes DAAC
Data access MCD12q1v061
Notes Version 5.1, used in IPUMS Terra, is no longer available. The corresponding updated version, 6.1, linked above, covers 2001-2021. Terra used the IGBP classification.
Citation Friedl, M., D. Sulla-Menashe. MODIS/Terra+Aqua Land Cover Type Yearly L3 Global 500m SIN Grid V061. 2022, distributed by NASA EOSDIS Land Processes DAAC.
DOI 10.5067/MODIS/MCD12Q1.061
Global Land Cover 2000 (GLC2000)
Data provider European Commission Joint Research Centre - Forest Resources and Carbon Emissions
Data access Global Land Cover 2000
Notes IPUMS Terra used the Global Product.
Citation The Global Land Cover Map for the Year 2000 (2003), GLC2000 database, European Commission Joint Research Centre.
Agricultural Land Use
Crop and Pasture Lands (GLIAGLAND)
Data provider EarthStat
Data access Cropland and Pasture Area in 2000
Notes These data are the same version used in IPUMS Terra.
EarthStat also has several additional agriculturally-related datasets.
Citation Ramankutty, N., A.T. Evan, C. Monfreda, and J.A. Foley (2008), Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000. Global Biogeochemical Cycles 22, GB1003
DOI 10.1029/2007GB002952
Harvested Area and Yield of 175 Crops (GLICROPS)
Data provider EarthStat
Data access Harvested Area and Yield for 175 Crops
Notes These data are the same version used in IPUMS Terra.
EarthStat also has several additional agriculturally-related datasets.
Citation Monfreda, C., N. Ramankutty, and J. A. Foley (2008), Farming the planet: 2. Geographic distribution of crop areas, yields, physiological types, and net primary production in the year 2000, Global Biogeochem. Cycles, 22, GB1022
DOI 10.1029/2007GB002947