1de Sherbinin, A., M. Levy, S. Adamo, K. MacManus, G. Yetman, V. Mara, L. Razafindrazay, B. Goodrich, T. Srebotnjak, C. Aichele, and L. Pistolesi20150918Global Estimated Net Migration Grids by Decade: 1970-20001.00raster, map, map servicePalisades, NYNASA Socioeconomic Data and Applications Center (SEDAC)https://doi.org/10.7927/H4319SVCtruede Sherbinin, A., M. Levy, S. Adamo, K. MacManus, G. Yetman, V. Mara, L. Razafindrazay, B. Goodrich, T. Srebotnjak, C. Aichele, and L. Pistolesi20121106Migration and Risk: Net Migration in Marginal Ecosystems and Hazardous Areasjournal articleEnvironmental Research Letters7(4): 045602http://iopscience.iop.org/1748-9326/7/4/045602trueThe Global Estimated Net Migration by Decade: 1970-2000 data set provides estimates of net migration over the three decades from 1970 to 2000. Because of the lack of globally consistent data on migration, indirect estimation methods were used. The authors relied on a combination of data on spatial population distribution for four time slices (1970, 1980, 1990, and 2000) and subnational rates of natural increase in order to derive estimates of net migration on a 30 arc-second (~1km) grid cell basis. Net migration was estimated by subtracting the population in time period 2 from the population in time period 1, and then subtracting the natural increase (births minus deaths). The residual was considered to be net migration (in-migrants minus out-migrants). The authors ran 13 geospatial net migration estimation models based on outputs from the same number of imputation runs for urban and rural rates of natural increase.This data set represents the average of those runs. These data are reliable at broad scales of analysis (e.g. ecosystems or regions), but are generally not reliable for local level analyses. The data were produced for the United Kingdom Foresight project on Migration and Global Environmental Change.To provide estimates of net-migration (in-migration minus out-migration) per one-kilometer grid cell on a decadal basis for the 1970s, 1980s, and 1990s.1970010120001231publication dateAs needed-180.000000180.00000083.633333-55.766667SEDAC ThemeConservationLand UsePopulationUrbanData GranularityCountryGlobalISO TopicSocietyGCMD Science Keywords, Version 8.6EARTH SCIENCE > HUMAN DIMENSIONS > POPULATION > POPULATION DISTRIBUTIONCIESIN Location Terms, Version 3.1GlobalNoneUsers are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.NASA Socioeconomic Data and Applications Center (SEDAC)mailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8920+1 845-365-8922ciesin.info@ciesin.columbia.edutruehttps://sedac.ciesin.columbia.edu/downloads/maps/popdynamics/popdynamics-global-est-net-migration-grids-1970-2000/net-migration-africa-1990-2000-thumbnail.jpgNet Migration (1990-2000): AfricaJPEG-1falsefalseRasterGrid Cell4320016721false0.0083330.008333Decimal degreesWGS84WGS846378137.000000298.257224Global Estimated Net Migration Grids By Decade: 1970-2000 DIST1NASA Socioeconomic Data and Applications Center (SEDAC)mailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8920+1 845-365-8922ciesin.info@ciesin.columbia.edutrueCIESIN_SEDAC_PD_NETMIG_1970_2000CIESIN follows procedures designed to ensure that data disseminated by CIESIN are of reasonable quality. If, despite these procedures, users encounter apparent errors or misstatements in the data, they should contact SEDAC User Services at +1 845-365-8920 or via email at ciesin.info@ciesin.columbia.edu. Neither CIESIN nor NASA verifies or guarantees the accuracy, reliability, or completeness of any data provided. CIESIN provides this data without warranty of any kind whatsoever, either expressed or implied. CIESIN shall not be liable for incidental, consequential, or special damages arising out of the use of any data provided by CIESIN.false0The data in Georeferenced Tagged Image File Format (.tif); the maps in Portable Document Format (.pdf), and Portable Network Graphics (.png) formats; and the web map services are available from the NASA Socioeconomic Data and Applications Center (SEDAC).1GeoTIFFfalseUnziphttps://sedac.ciesin.columbia.edu/data/set/popdynamics-global-est-net-migration-grids-1970-2000/data-download-1Data accessible via the data set landing page.1PDFfalsehttps://sedac.ciesin.columbia.edu/data/set/popdynamics-global-est-net-migration-grids-1970-2000/maps-1Maps accessible via the data set landing page.1PNGfalsehttps://sedac.ciesin.columbia.edu/data/set/popdynamics-global-est-net-migration-grids-1970-2000/maps-1Maps accessible via the data set landing page.1WMSfalsehttps://sedac.ciesin.columbia.edu/data/set/popdynamics-global-est-net-migration-grids-1970-2000/maps/services-1Web Map Services accessible via the data set landing page.1120150918Present2014092920220414Center for International Earth Science Information Network (CIESIN) Metadata Administrationmailing and physical address
CIESIN, Columbia University, 61 Route 9W, P.O. Box 1000
PalisadesNew York10964USA+1 845-365-8988+1 845-365-8922metadata@ciesin.columbia.edutrueFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local time