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19 research data, page 1 of 2

Potential Impacts of Climate Change on World Food Supply: Datasets from a Major Crop Modeling Study

Rosensweig C.; Iglesias, A. (1999)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
Data sets from a Major Crop Modeling Study contain projected country and regional changes in grain crop yields due to global climate change. Equilibrium and transient scenarios output from General Circulation Models (GCMs) with three levels of farmer adaptations to climate change were utilized to generate crop yield estimates of wheat, rice, coarse grains (barley and maize), and protein feed (soybean) at 125 agricultural sites representing major world agricultural regions. Projected yields at...

Gridded Population of the World, Version 3 (GPWv3): Population Count Grid

Gridded Population of the World, Version 3 (GPWv3) consists of estimates of human population for the years 1990, 1995, and 2000 by 2.5 arc-minute grid cells and associated data sets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 300,000 national and sub-national administrative units, is used to assign population values to grid cells. The population count grids contain estimates of the number of persons per grid cell. The grids are available in various GIS-...

Last of the Wild Project, Version 2, 2005 (LWP-2): Global Human Footprint Dataset (Geographic)

Wildlife Conservation Society - WCS; Center for International Earth Science Information Network - CIESIN - Columbia University (2005)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
The Global Human Footprint Dataset of the Last of the Wild Project, Version 2, 2005 (LWP-2) is the Human Influence Index (HII) normalized by biome and realm. The HII is a global dataset of 1-kilometer grid cells, created from nine global data layers covering human population pressure (population density), human land use and infrastructure (built-up areas, nighttime lights, land use/land cover), and human access (coastlines, roads, railroads, navigable rivers). The dataset is produced by the W...

Gridded Population of the World, Version 3 (GPWv3): Population Count Grid, Future Estimates

Gridded Population of the World, Version 3 (GPWv3) Future Estimates consists of estimates of human population for the years 2005, 2010, and 2015 by 2.5 arc-minute grid cells and associated data sets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 300,000 national and sub-national administrative units, is used to assign population values to grid cells. The population counts that the grids are derived from are extrapolated based on a combination of subnationa...

Last of the Wild Project, Version 2, 2005 (LWP-2): Global Human Influence Index (HII) Dataset (Geographic)

Wildlife Conservation Society - WCS; Center for International Earth Science Information Network - CIESIN - Columbia University (2005)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
The Global Human Influence Index Dataset of the Last of the Wild Project, Version 2, 2005 (LWP-2) is a global dataset of 1-kilometer grid cells, created from nine global data layers covering human population pressure (population density), human land use and infrastructure (built-up areas, nighttime lights, land use/land cover), and human access (coastlines, roads, railroads, navigable rivers). The dataset is produced by the Wildlife Conservation Society (WCS) and the Columbia University Cente...

Gridded Population of the World, Version 3 (GPWv3): Population Density Grid

Gridded Population of the World, Version 3 (GPWv3) consists of estimates of human population for the years 1990, 1995, and 2000 by 2.5 arc-minute grid cells and associated data sets dated circa 2000. A proportional allocation gridding algorithm, utilizing more than 300,000 national and sub-national administrative units, is used to assign population values to grid cells. The population density grids are derived by dividing the population count grids by the land area grid and represent persons ...

Gridded Population of the World, Version 4 (GPWv4): Population Density

Center for International Earth Science Information Network - CIESIN - Columbia University (2016)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
Gridded Population of the World, Version 4 (GPWv4) Population Density consists of estimates of human population density based on counts consistent with national censuses and population registers, for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing approximately 12.5 million national and sub-national administrative units, is used to assign population values to 30 arc-second (~1 km) grid cells. The population density grids are derived by divid...

Global Agricultural Lands: Pastures, 2000

Ramankutty, N.; Evan, A.T.; Monfreda, C.; Foley, J.A. (2010)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
The Global Pastures data set represents the proportion of land areas used as pasture land (land used to support grazing animals) in the year 2000. Satellite data from Modetate Resolution Imaging Spectroradiometer (MODIS) and Satellite Pour l'Observation de la Terre (SPOT) Image Vegetation sensor were combined with agricultural inventory data to create a global data set. The visual presentation of this data demonstrates the extent to which human land use for agriculture has changed the Earth a...

Gridded Population of the World, Version 4 (GPWv4): Population Density Adjusted to Match 2015 Revision of UN WPP Country Totals

Center for International Earth Science Information Network - CIESIN - Columbia University (2016)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
Gridded Population of the World, Version 4 (GPWv4) Population Density Adjusted to Match 2015 Revision of UN WPP Country Totals consists of estimates of human population density, based on counts consistent with national censuses and population registers with respect to relative spatial distribution, but adjusted to match the 2015 Revision of UN World Population Prospects country totals for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing appro...

HANPP Collection: Global Patterns in Net Primary Productivity (NPP)

Imhoff, M.L.; Bounoua, L.; Ricketts, T.; Loucks, C.; Harriss, R.; Lawrence, W.T. (2004)
Publisher: Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC)
The Global Patterns in Net Primary Productivity (NPP) portion of the HANPP Collection maps the net amount of solar energy converted to plant organic matter through photosynthesis. NPP is measured in units of elemental carbon and represents the primary food energy source for the world's ecosystems. This data set is distributed by the Columbia University Center for International Earth Science Information Network (CIESIN).