This two-day workshop of key developers and users of gridded population databases was intended to foster the exchange of ideas and methods and to stimulate new activities through collaboration. The first day focused on the presentation of papers and the discussion thereof. The paper presentations include: applications of gridded population data, in particular to interdisciplinary research questions on environmental issues; methodologies, both those that do and do not incorporate satellite-derived data, at global, regional, and local scales. The second day began with presentations on data requirements and associated issues, but the majority of this day focused on the discussion of future directions that can be made through collective efforts. The latter part of this day was dedicated toward starting those new efforts. 

Co-sponsors:
National Center for Geographic Information and Analysis University of California Santa Barbara, CA 93106 http://www.ncgia.ucsb.edu/	Oak Ridge National Laboratory POB 2008, MS 6237 Oak Ridge, TN 37831 http://www.ornl.gov/gist/	United National Environmental Programme EROS Data Center Sioux Falls, SD 57198 http://grid.cr.usgs.gov

Final agenda 

Day 1 Morning: Users

8:45 Light breakfast (coffee, juice, bagels and pastry)

9:00 Welcome: Roberta Miller and Deborah Balk, CIESIN

9:30 Overview: Where are we? The supply side Uwe Deichmann, World Bank

10:00 Overview: Where are we? The demand side Deborah Balk, CIESIN

10:15 Break

10:30 Uses, Bob Chen, CIESIN, Chair

Topics:

• Examples of use
• Problems/limitations of use
• Other issues that arise in use
• Basic questions
• Applied questions

Presenters:

Speaker(s)	Title and Abstract	Presentation
Christopher Small, Columbia University and Joel Cohen, Rockefeller University,	"Physiography, Climate and the Global Distribution of Human Population"
Gerhard Heilig, International Institute for Applied Systems Analysis,	"How can spatial population analysis improve our understanding of population-environment interactions Examples from China"
Marcel Endejan, Center for Environmental Systems Research, University of Kassel,	"The GLASS model: The Use of Population Data in Global Modelling of Environment & Security"
Son Nghiem, Jet Propulsion Lab,	"Monsoon Flood Mapping over the Asian Continent"
Rich Cincotta, Robert Engelman and Jennifer Wisnewski. Population Action International,	"Human Population and the Biodiversity Hotspots: An Application of the Gridded World Population Data and Its Multiple Products for Science, Policy and Advocacy"
Steeve Ebener, World Health Organization,	"Mapping poverty: predicting income using the Landscan database"

12:30 Lunch (catered) 

Day 1 Afternoon: Producers

1:30 Approaches and methods I: without (or mostly w/o) satellite-derived information, Jerry Dobson, Oak Ridge National Lab, Chair

Topics:

Presenters:

Speaker(s)	Title and Abstract	Presentation
Greg Yetman, Ion Mateescu, Deborah Balk, CIESIN, Columbia University and Uwe Deichmann, World Bank,	"A gridded population of the world: The single variable model"
Yi-Fan (Arthur) Li, Environment Canada, and Ashbindu Singh, United Nations Environment Programme,	"Methodologies of Creation of Gridded Global Population Datasets for 1990 and their Applications in Compilation of Gridded Emission Inventories for Different Pollutants"
Glenn Hyman and Andrew Nelson, Centro Internacional de Agricultura Tropical,	"Population maps of Latin America"
David Martin, University of Southampton,	"High resolution and low scale: national population surface models from the UK Censuses"
Mark Thurstain-Goodwin, CASA, University College, London,	"Gridding and overlaying economic data and the implications for population applications"

3:10 Break

3:20 Approaches and methods II: with satellite-derived information, Norbert Henninger, World Resources Institute, Chair

Speaker(s)	Title and Abstract	Presentation
Jerry Dobson and Ed Bright, Oak Ridge National Laboratory,	"LandScan: A Global Population Database for Estimating Populations at Risk"	see Landscan
Christopher Doll and Jan-Peter Muller, University College, London,	"Mapping anthropogenic activities from Earth Observation data"
Chris Elvidge, National Oceanic and Atmospheric Administration,	"Global mapping of human settlements using DMSP nighttime lights data"
Paul Sutton, University of Denver,	"An overview of efforts at estimating urban populations using nighttime satellite imagery and geo-location"
Jan-Peter Muller, University College, London,	"Mapping of population from 1m to the planet using Earth Observation data from the visible to radar wavelengths"

5:00 Discussion: Synthesis and Major Gaps, Mike Goodchild, NCGIA, University of California Santa Barbara, Chair

6:00 Adjourn

6:30 Dinner (choice of two restaurants, River or Citrus Bar and Grill) 

Day 2 Morning: Data and Adjustments

8:15 Light breakfast (coffee, bagels, pastry)

8:30 Data and adjustments, Ellen Brennan, United Nations, Chair

Topics:

• Data requirements
• Strengths and weaknesses in existing data
• Population data
• Boundary data
• Other data
• Data restrictions originating with source data

Presenters:

Speaker(s)	Title and Abstract	Presentation
Mike Goodchild, NCGIA, University of California at Santa Barbara,	"Alexandria Digital Earth Prototype"
Gene Fosnight, Eros Data Center,	"Models for creating population databases and their consequences"
Jaap van Woerden, National Institute for Public Health and the Environment (RIVM), The Netherlands,	"Population data requirements for global integrated environment assessment"
Peter Johnson, International Program Center, US Census Bureau	"Population Censuses: The Last Fifty Years and the Beginning of the 21st Century"
Kate Lance and Glenn Hyman, Centro Internacional de Agricultura Tropical,	"Spatial Data Infrastructures in Latin America: Implications for Digital Mapping at the Regional Scale"
Richard C. Cicone, IISCIENCES, and Douglas S. Way, Ohio State University and ISCIENCES,	"A Digital Earth: Natural Disaster Risk Assessment in India Using Disaggregated Population Statistics"

10:15 Break

Day 2 Mid-morning & Afternoon: Next steps

10:30 Future directions

Moderators: Deborah Balk, Uwe Deichmann, Chris Small

Topics:

• How to plan for the year 2000 censuses
• Wish list of what we’d like in a database
• Collaborations, projects and proposals
• Other, to be added from prior days’ discussion

12:30 Lunch (on own)

1:30 Smaller groups sessions (To be determined by prior days’ discussion, e.g.:

• Summary piece from workshop
• Ideas for projects and collaborations
• WorPlans of actions

4:00 Adjourn

Confirmed attendance list (alphabetized by affiliation):

1. Marcel Endejan, Center for Environmental Systems Research, University of Kassel
2. Mark Thurstan-Goodwin, CASA, University College, London
3. Glenn Hyman, CIAT
4. Kate Lance, CIAT
5. Bob Chen, CIESIN, Columbia University
6. Deborah Balk, CIESIN, Columbia University
7. Greg Yetman, CIESIN, Columbia University
8. Ion Mateescu, CIESIN, Columbia University
9. Roberta Miller, CIESIN, Columbia University
10. Antoinette Wannebo, CIESIN, Columbia University
11. David Gregorio, University of Connecticut, Hartford
12. Livia Montana, Demographic Health Survey, Macro International
13. David Martin, Department of Geography, University of Southampton
14. Yi-Fan (Arthur) Li, Environment Canada
15. Gene Fosnight, Eros Data Center, USGS
16. Gerhard Heilig, IIASA
17. Ric Cicone, ISCIENCES
18. Son Nghiem, Jet Propulsion Lab
19. Chris Small, LDEO, Columbia University
20. Mike Goodchild, NCGIA
21. Jaap van Woerden, RIVM (National Institute for Public Health and the Environment, The Netherlands)
22. Christopher Elvidge, NOAA in Boulder (NGDC)
23. Ed Bright, Oak Ridge National Laboratory
24. Jerry Dobson, Oak Ridge National Laboratory
25. Rich Cincotta, Population Action International
26. Patrick Gerland, Princeton University
27. Joel Cohen, Rockefeller University and Columbia Earth Institute
28. Alice Chow, UN Cartography
29. Ellen Brennan-Galvin, UN Population Division
30. Karoline Schmid, UN Population Division
31. Christopher Doll, University College London
32. Jan-Peter Muller, University College, London
33. Paul Sutton, University of Denver
34. Jim Fitzsimmons, US Census Bureau
35. Frank Gulino, US Census Bureau
36. Robert Leddy, US Census Bureau
37. Peter Johnson, US Census Bureau
38. Nadja Victor, Yale
39. Uwe Deichmann, World Bank
40. Norbert Henninger, World Resources Institute
41. Ken Kassem, World Resources Institute
42. Steeve Ebener, World Health Organization