Acknowledgment and Credits

The construction of high-quality, global, geo-referenced population databases requires inputs of many different types. Investments by national statistical and mapping agencies to collect, maintain, and distribute population and administrative unit data are the first critical input.  Each data provider is acknowledged in the table of country-specific information.  The next step of pulling these datasets together in a unified fashion requires a considerable amount of labor with skills in geography, demography, and database manipulation.  GPW version 3 and GRUMP version 1 were efforts that were largely implemented at CIESIN, but the detailed credits for each product follows.*   This work builds on 10 years of prior efforts, which are described within the documentation.

GPW v3

This effort was led by a core group at CIESIN and CIAT headed by Deborah Balk and Gregory Yetman of CIESIN.  Melanie Brickman (CIESIN), Lisa Lukang (CIESIN), and Glenn Hyman (CIAT), were also part of this core group.

Thanks go to the following individuals for their contribution to data collection, conditioning, and analysis: Sonya Ahamed, Bridget Anderson, Elizabeth Barona, Mark Becker, Timothie Biggs, Greg Booma, Makini Byron, Silvia Elena Castao, Betty Hsiu-tsiu Chang, Sarah Cohen, Yael Degany, Alex de Sherbinin, Joel Ferree, Jacob Feit, Rafael Flor, Chandra Giri, Christine Grimando, Robby Gutmann, Jukay Hsu, Malanding Jaiteh, Brian Kauffman, Jennifer Korth, Mat Krogulecki, Germán Lema, Marc Levy, Amie Lewis, Rosalba Lopez, John Mickelson, Melissa Neuman, Francesca Pozzi, Audra Query, Lynn Seirup, Mahesh Somashekhar, Ben Stanley, Adam Storeygard, Lindsey Wilner, Katya Vasilaky, Keelia Wright, and Simone Young.   Thanks go to these individuals for the production of maps, databases, information resources, and Web materials: Nevila Celo, James Connolly, Craig Davis, Branko Djapic, Janina Franco, Yitzhak Gitelman, Merlie Hansen, Al Pinto, Roseanne Schwartz, Joe Schumacher, John Scialdone, Ron Slangen, Yunnis Yi, and Xiaoshi Xing (Some of these individuals helped in multiple capacities).   Additionally, computer, administrative and organizational support was also received from Hans Bosch, Robert Chen, Bob Downs, Saleh Ghani, Chris Lenhardt, Jen Mulvey, Ed Ortiz, Dave Strom, and Sri Vinayagamoorthy.

Outside CIESIN and CIAT, the following individuals were helpful to our efforts: Jackie Adler, Zeinab Al-Dabbagh, William Bajjali, Jane Barry, Todd Benson, Ed Bright, Mary Ann Brueckner, Eny Buchary, Piet Buys, Hy Dao, Uwe Deichmann, Jerry Dobson, Evaline DiangA, Steeve Ebener, Denis Ekert, Lucy Foley, Chandana Gangodagamage, Simon Hay, Dai Hozumi, Royce Jones, Bashar Juma'a, Atul Kapoor, S. Khudulmur, Sharthi Laldaparsad, Pali Lehola, Livia Montana, P. Naimila, Turenga Nakalevu, Jameson Ndwala, Andy Nelson, Tom Parris, Gina Porcena, David Rain, Mahadevan Ramachandran, Charles Rethman, Nancy Schechtman, Robin Schofield, Motimedi Sekhobela, Mike Shand, Paata Shavishvili, Chris Small, Tracey Thomas, Ludmila Tiganu, Hugh Turral, and Chris Whyte.

GPW version 3 was produced with primary support from National Aeronautics and Space Administration under Contract NAS5-03117 for the Continued Operation of the Socioeconomic Data and Applications Center (SEDAC) at CIESIN at Columbia University and from the Inter-American Development Bank under Contract ATN/SF-5206-RG and the International Food Policy Research Institute to the Centro Internacional de Agricultura Tropical (CIAT).

GRUMP v1

This effort was led by a core group at CIESIN headed by Deborah Balk, Francesca Pozzi, and Gregory Yetman.  Other core group members include: at CIESIN, Edwin Adkins, Greg Booma, Adam Storeygard, and Maarten Tromp; at IFPRI, Jordan Chamberlin, Kate Sebastian, and Stan Wood; at the World Bank, Uwe Deichmann and Andy Nelson; and at CIAT, Glenn Hyman.

The following persons were instrumental in various stages of the database preparation: Sonya Ahamed, Bridget Anderson, Melanie Brickman, Betty Hsiu-tsiu Chang, Jessica Forrest, Christine Grimando, Robby Gutmann, Erika Helms, Malanding Jaiteh, Germán Lema, Marc Levy, Rosalba Lopez, Lisa Lukang, Melissa Neuman, James "Cuz" Potter, Chris Small, Katya Vasilaky, Keelia Wright, and Xiaoshi Xing. Al Pinto, John Scialdone, and Yunnis Yi were among those responsible for producing maps, and web and informational materials.

Outside the partnering institutions, we also wish to thank Dave Carson, Chris Elvidge, Simon Hay, Gordan McGranahan, and Steve Metzler.

GRUMP version 1 was produced with primary support to CIESIN from National Aeronautics and Space Administration under Contract NAS5-03117 for the Continued Operation of the Socioeconomic Data and Applications Center (SEDAC), the International Food Policy Research Center (IFPRI) under Contract 2001-X046COL, and the World Conservation Monitoring Center (WCMC) for the Millennium Ecosystem Assessment under Contract CU-02225301; and from support from the Development Research Group at World Bank, and at CIAT.

The suggested citation for GRUMP v1 is:

Center for International Earth Science Information Network (CIESIN), Columbia University; International Food Policy Research Institute (IFPRI), the World Bank; and Centro Internacional de Agricultura Tropical (CIAT), 2004. Global Rural-Urban Mapping Project (GRUMP): {database name from below here} Palisades, NY: CIESIN, Columbia University. Available at http://sedac.ciesin.columbia.edu/gpw.

Global Rural-Urban Mapping Project (GRUMP) databases are:

• Settlement Points.
• Urban Extents.
• Gridded Population of the World, version 3, with Urban Reallocation (GPW-UR).

*NB: We have tried to be thorough in our acknowledgments, but should we have omitted anyone, please let us know.