Earth observation (EO)-based ex post assessment of internally displaced person (IDP) camp evolution and population dynamics in Zam Zam, Darfur

References

• Albrecht , F. 2008 . “ Assessing the spatial accuracy of object-based image classifications ” . In Geospatial Crossroads @ GI_Forum 2008 , Edited by: Car , A. , Griesebner , G. and Strobl , J. 11 – 20 . Heidelberg, , Germany : Wichmann Verlag .
   Google Scholar
• Al-Garni , A.M. 1995 . Mathematical predictive models for population estimation in urban areas using space products and GIS technology . Mathematical and Computer Modeling , 22 : 95 – 107 .
   Google Scholar
• Avelar , S. , Zah , R. and Tavares-Correa , C. 2009 . Linking socioeconomic classes and land cover data in Lima, Peru: assessment through the application of remote sensing and GIS . International Journal of Applied Earth Observation and Geoinformation , 11 : 27 – 37 .
   Web of Science ®Google Scholar
• Baatz , M. and Schäpe , A. 2000 . “ Multiresolution segmentation – an optimization approach for high quality multi-scale image segmentation ” . In Angewandte Geographische Informationsverarbeitung , Edited by: Strobl , J. , Blaschke , T. and Griesebner , G. Heidelberg, , Germany : Wichmann Verlag .
   Google Scholar
• Benz , U.C. , Hofmann , P. , Willhauck , G. , Lingenfelder , I. and Heynen , M. 2004 . Multi-resolution, object-oriented fuzzy analysis of remote sensing data for GIS-ready information . ISPRS Journal of Photogrammetry and Remote Sensing , 58 : 239 – 258 .
   Web of Science ®Google Scholar
• Bjorgo , E. 2000a . Refugee camp mapping using very high spatial resolution satellite sensor images . Geocarto International , 15 : 77 – 86 .
   Google Scholar
• Bjorgo , E. 2000b . Using very high spatial resolution multispectral satellite sensor imagery to monitor refugee camps . International Journal of Remote Sensing , 21 : 611 – 616 .
   Web of Science ®Google Scholar
• Blaschke , T. , Lang , S. and Hay , G. , eds. 2008 . Object-based Image Analysis – Spatial Concepts for Knowledge-driven Remote Sensing Applications , Berlin, , Germany : Springer .
   Google Scholar
• Bouchardy , J.Y. 1995 . Development of a GIS system in UNHCR for environmental, emergency, logistic and planning purposes , Geneva, , Switzerland : UNHCR Environment . Environment Unit Report
   Google Scholar
• Briggs , D.J. , Gulliver , J. , Fecht , D. and Vienneau , D.M. 2007 . Dasymetric modelling of small-area population distribution using land cover and light emissions data . Remote Sensing of Environment , 108 : 451 – 466 .
   Web of Science ®Google Scholar
• Bush , R. 1988 . Hunger in Sudan: the case of Darfur . African Affairs , 87 : 5 – 23 .
   Web of Science ®Google Scholar
• Congalton , R. 1991 . A review of assessing the accuracy of classifications of remotely sensed data . Remote Sensing of Environment , 37 : 35 – 46 .
   Web of Science ®Google Scholar
• Dare , P.M. and Fraser , C.S. 2001 . Mapping informal settlements using high resolution satellite imagery . International Journal of Remote Sensing , 22 : 1399 – 1401 .
   Web of Science ®Google Scholar
• de Kok , R. and Wezyk , P. 2008 . “ Principles of full autonomy in image interpretation. The basic architectural design for a sequential process with image objects ” . In Object-based Image Analysis – Spatial Concepts for Knowledge-driven Remote Sensing Applications , Edited by: Blaschke , T. , Lang , S. and Hay , G. 697 – 710 . Berlin, , Germany : Springer .
   Google Scholar
• de la Cruz , A. 2007 . “ On the application of nighttime sensors for rapid detection of areas impacted by disasters ” . In Geomatics Solutions for Disaster Management , 17 – 36 . Berlin, , Germany : Springer .
   Google Scholar
• Ehrlich , D. , Lang , S. , Laneve , G. , Mubareka , S. , Schneiderbauer , S. and Tiede , D. 2009 . “ Can Earth observation help to improve the need for information on population? ” . In Global Monitoring for Security and Stability , Edited by: Jasani , B. , Pesaresi , M. , Schneiderbauer , S. and Zeug , G. 211 – 237 . New York, NY : Springer .
   Google Scholar
• Eicher , C.L. and Brewer , C.A. 2001 . Dasymetric mapping an areal interpolation: Implementation and evaluation . Cartography and Geographic Information Science , 28 : 125 – 138 .
   Google Scholar
• Enviref, 2001, Environmental monitoring of refugee camps using high-resolution satellite images. http://www.enviref.org (http://www.enviref.org) (Accessed: April 2009 ).
   Google Scholar
• Fisher , P. 1999 . “ Models of uncertainty in spatial data ” . In Geographical Information Systems: Principles, Techniques, Management and Applications , Edited by: Longley , P. , Goodchild , M.F. , Maguire , D.J. and Rhind , D.W. Vol. 1 , 191 – 205 . New York, NY : John Wiley and Sons .
   Google Scholar
• Foody , G.M. 2002 . Status of land cover classification accuracy assessment . Remote Sensing of Environment, , 80 : 185 – 201 .
   Web of Science ®Google Scholar
• Giada , S. , De Groeve , T. , Ehrlich , D. and Soille , P. 2003 . Information extraction from very high resolution satellite imagery over Lukole refugee camp, Tanzania . International Journal of Remote Sensing , 24 : 4251 – 4266 .
   Web of Science ®Google Scholar
• Grais , R.F. , Coulombier , D. , Ampuero , J. , Lucas , M.E. S. , Barretto , A.T. , Jacquier , G. , Diaz , F. , Balandine , S. , Mahoudeau , C. and Brown , V. 2006 . Are rapid population estimates accurate? A field trial of two different assessment methods . Disasters , 30 : 364 – 376 .
   PubMed Web of Science ®Google Scholar
• Hagenlocher , M. , Lang , S. , Zeil , P. and Hochschild , V. 2009 . “ Assessing the environmental impact of population displacement in Northern Darfur based on time series of high-resolution satellite data ” . In Geospatial Crossroads @ GI_Forum 2009 , Edited by: Car , A. , Griesebner , G. and Strobl , J. 49 – 52 . Heidelberg, , Germany : Wichmann Verlag .
   Google Scholar
• Harvey , D. 2002 . Estimating census district populations from satellite imagery: some approaches and limitations . International Journal of Remote Sensing , 23 : 2071 – 2095 .
   Web of Science ®Google Scholar
• Heijmans , H. 1994 . Morphological Image Operators. Advances in Electronics and Electron Physics Series , Boston, MA : Academic Press .
   Google Scholar
• Jacobsen , K. 1997 . Refugees’ environmental impact: the effect of patterns of settlement . Journal of Refugee Studies , 10 : 19 – 36 .
   Google Scholar
• Kelly , C. 1998 . Bridging the gap: remote sensing and needs assessment—a field experience with displaced populations . Safety Science , 30 : 123 – 129 .
   Web of Science ®Google Scholar
• Kranz , O. , Lang , S. , Tiede , D. , Zeug , G. , Kemper , T. , Caspard , M. and Clandillon , S. 2010 . “ GMES services for conflict prevention and mitigation: supporting mission planning of DG RELEX ” . In Geoinformation and Cartography for Early Warning and Crisis Response , Edited by: Zlatanova , S. 171 – 188 . New York, NY : Springer .
   Google Scholar
• Laneve , G. , Santilli , G. and Lingenfelder , I. Development of automatic techniques for refugee camps monitoring using very high spatial resolution (VHSR) satellite imagery . IEEE International Conference on Geoscience and Remote Sensing Symposium 2006 (IGARSS) . pp. 841 – 845 .
   Google Scholar
• Lang , S. 2008 . “ Object-based image analysis for remote sensing applications: modeling reality – dealing with complexity ” . In Object-based Image Analysis – Spatial Concepts for Knowledge-driven Remote Sensing Applications , Edited by: Blaschke , T. , Lang , S. and Hay , G.H. 3 – 28 . New York, NY : Springer .
   Google Scholar
• Lang , S. , Tiede , D. and Hofer , F. 2006a . Modeling ephemeral settlements using VHSR image data and 3D visualisation – the example of Goz Amer refugee camp in Chad . Photogrammetrie-Fernerkundung-Geoinformation (PFG) , 4 : 327 – 337 .
   Google Scholar
• Lang , S. , Tiede , D. and Santilli , G. Varying sensors and algorithms – an information delivery approach for population estimation in African refugee camps, AARSE 2006 . Earth Observation and Geoinformation Sciences in Support of Africa's Development . 20 October–2 November 2006 . CD-ROM .
   Google Scholar
• Lang , S. , Zeil , P. , Kienberger , S. and Tiede , D. 2008a . “ Geons-policy-relevant geo-objects for monitoring high-level indicators ” . In Geospatial Crossroads @ GI Forum 2009 , Edited by: Car , A. , Griesebner , G. and Strobl , J. 180 – 186 . Heidelberg, , Germany : Wichmann Verlag .
   Google Scholar
• Lang , S. , Tiede , D. , Laneve , G. , Ebeltjes , J. , Santilli , G. and de la Cruz , A. 2008b . “ Manual versus automated dwelling counting in Chad, Sudan, Tanzania and Zimbabwe ” . In Remote Sensing for International Stability and Security – Integrating GMOSS Achievements in GMES , Edited by: Zeug , G. and Pesaresi , M. CD-ROM .
   Google Scholar
• Lee , J.S. 1983 . Digital image smoothing and the sigma filter . Computer Vision, Graphics, and Image Processing , 24 : 255 – 269 .
   Google Scholar
• Liu , X. , Clarke , K. and Herold , M. 2006 . Population density and image texture: a comparison study . Photogrammetric Engineering and Remote Sensing , 72 : 187 – 196 .
   Web of Science ®Google Scholar
• Lo , C.P. 1986 . “ Accuracy of population estimation from medium-scale aerial photography ” . In American Congress on Surveying and Mapping and American Society for Photogrammetry and Remote Sensing 1 – 10 . Falls Church, VA
   Google Scholar
• Lo , C.P. Estimating the population of China using the DMSP Operational Linescan system nighttime images . Proceedings of ASPRS Annual meeting . April 23–27 2001 , St. Louis, MO, USA.
   Google Scholar
• Lodhi , M.A. , Echavaria , F.R. and Keithley , C. 1998 . Using remote sensing data to monitor land cover changes near Afghan refugee camps in northern Pakistan . Geocarto International , 13 : 33 – 39 .
   Google Scholar
• Longley , P. , Goodchild , M. , Maguire , D. and Rhind , D. 2001 . Geographic Information Science and Systems , New York, NY : John Wiley & Sons .
   Google Scholar
• Mason , S.O. , Baltsavias , E.P. and Bishop , I. 1997 . Spatial decision support systems for the management of informal settlements . Computers, Environment and Urban Systems , 21 : 189 – 208 .
   Google Scholar
• Miller , R.B and Small , C. 2003 . Cities from space: potential applications of remote sensing in urban environmental research and policy . Environmental Science and Policy , 6 : 129 – 137 .
   Web of Science ®Google Scholar
• Morton , T.A. and Yuan , F. 2009 . Analysis of population dynamics using satellite remote sensing and US census data . Geocarto International , 24 : 143 – 163 .
   Google Scholar
• Noji , E. 2005 . Estimating population size in emergencies . Bulletin of the World Health Organization , 83 : 164
   PubMed Web of Science ®Google Scholar
• Office for the Coordination of Humanitarian Affairs (OCHA), 2007, Camp data. http://www.unsudanig.org/library/mapcatalogue/darfur/data/camps/Map%2072%20SU-DAR-CAMP-02_A3_06Dec07_Northern%20Darfur%20Zamzam%20Camp.pdf (http://www.unsudanig.org/library/mapcatalogue/darfur/data/camps/Map%2072%20SU-DAR-CAMP-02_A3_06Dec07_Northern%20Darfur%20Zamzam%20Camp.pdf) (Accessed: August 2008 ).
   Google Scholar
• Openshaw , S. 1984 . “ The modifiable areal unit problem ” . In Concepts and Techniques in Modern Geography , Vol. 38 , Norwich, , UK : Geobooks .
   Google Scholar
• Qiu , F. , Woller , K.L. and Briggs , R. 2003 . Modeling urban population growth from remotely sensed imagery and TIGER GIS road data . Photogrammetric Engineering and Remote Sensing , 69 : 1031 – 1042 .
   Web of Science ®Google Scholar
• Silverman , B.W. 1986 . Density Estimation for Statistics and Data Analysis , New York, NY : Chapman and Hall .
   Google Scholar
• Sutton , P. , Roberts , D. , Elvidge , C. and Baugh , K. 2001 . Census from Heaven: an estimate of the global human population using nighttime satellite imagery . International Journal of Remote Sensing , 22 : 3061 – 3076 .
   Web of Science ®Google Scholar
• Tiede , D. and Lang , S. Distributed computing for accelerated dwelling extraction in refugee camps using VHSR satellite imagery . Geospatial Crossroads @ GI_Forum 2008 . July 1–4 2008 , Salzburg, Austria. Edited by: Car , A. , Griesebner , G. and Strobl , J. pp. 256 – 261 . Heidelberg, , Germany : Wichman Verlag .
   Google Scholar
• Tiede , D. and Lang , S. 2008b . “ Rapid dwelling extraction from VHSR satellite imagery in refugee camps and dissemination of conditioned information via virtual globes ” . In Digital Earth Summit on Geoinformatics 2008: Tools for Global Change Research , Edited by: Ehlers , M. 100 – 106 . Heidelberg, Germany : Wichmann .
   Google Scholar
• Tiede , D. and Lang , S. 2010 . Analytical 3D views and virtual globes–scientific results in familiar spatial context . ISPRS Journal of Photogrammetry and Remote Sensing , 65 : 300 – 307 .
   Web of Science ®Google Scholar
• Tiede , D. , Lang , S. and Hoffmann , C. 2008 . “ Type-specific class modelling for one-level representation of single trees ” . In Object-based Image Analysis – Spatial Concepts for Knowledge-driven Remote Sensing Applications , Edited by: Blaschke , T. , Lang , S. and Hay , G. 133 – 151 . Berlin, , Germany : Springer .
   Google Scholar
• Tobler , W.R. 1969 . Satellite confirmation of settlement size coefficients . Area , 1 : 30 – 34 .
   Google Scholar
• United Nations – African Union Mission in Darfur (UNAMID), 2008, Observation of Human Rights Office visit at Zam Zam Camp. http://unamid.unmissions.org/Default.aspx?tabid=55&ctl=Details&mid=376&ItemID=96 (http://unamid.unmissions.org/Default.aspx?tabid=55&ctl=Details&mid=376&ItemID=96) (Accessed: May 2009 ).
   Google Scholar
• United Nations – African Union Mission in Darfur (UNAMID), 2009, UNAMID provides water to new arrivals at Zam Zam IDP Camp. http://unamid.unmissions.org/Default.aspx?tabid=898&ctl=Details&mid=1062&Itemid=3212 (http://unamid.unmissions.org/Default.aspx?tabid=898&ctl=Details&mid=1062&Itemid=3212) (Accessed: May 2009 ).
   Google Scholar
• United Nations High Commissioner for Refugees (UNHCR), 2006, Specifications and list of tests for future reference light-weight emergency tent (UNHCR LWET). http://www.unhcr.org/admin/ADMIN/44c48eca2.pdf (http://www.unhcr.org/admin/ADMIN/44c48eca2.pdf) (Accessed: 20 August 2008 ).
   Google Scholar
• United Nations High Commissioner for Refugees (UNHCR) . 2007 . Handbook for Emergencies , 3rd , UNHCR .
   Google Scholar
• United Nations High Commissioner for Refugees (UNHCR) . 2008 . Refugee Realities – Meeting the Needs of Refugees and Other People of Concern Globally , UNHCR .
   Google Scholar
• Verjee , F. 2005 . The application of geomatics in complex humanitarian emergencies . Journal of Humanitarian Assistance , 28 : 1 – 27 .
   Google Scholar
• Wu , C. and Murray , A.T. 2007 . Population estimation using Landsat Enhanced Thematic Mapper imagery . Geographical Analysis , 39 : 26 – 43 .
   Web of Science ®Google Scholar