data availability seven years after hurricane katrinagriggj/katrina_finalproject.pdf · hurricane...
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Data Availability Seven Years After Hurricane KatrinaBackground
Maintenance of Data
It has been seven years sinceHurricane Katrina struck the GulfRegion and the Lower Ninth Wardcommunity of New Orleans is stillstruggling for survival. Only 5,560people live in the area (one third of theprevious population and 85 percentless than the 2000 population), whichis more than four times the size of theFrench Quarter.
This map depicts the population for the Lower Ninth Ward and Holy Crossneighborhoods in 2010. The red circles represent blighted structures thathave been demolished since the inception of BlightStat in 2010. BlightStat is apublic meeting that tracks the city's progress in meeting Mayor Landrieu's goalof eliminating 10,000 blighted properties in New Orleans in three years.
Despite the amount of commemorative articles that seem to comeout on the anniversary of Hurricane Katrina every year, the spatialdata for the areas affected by the tragedy continue to deteriorate.Whether the lack of maintenance is due to a loss of interest in thenews media or a loss of funding, the reality is that many residents ofthe lower Ninth Ward are still living as they were months after thehurricane. Houses remain uninhabitable and cars still sit where theywere overtaken by the flood. Families have not returned to the areaand are still living in temporary housing. The need for updated mapsis crucial.
Demographic Data is not spatialData exists in chart, image, or text filesData is not available to the publicData is still in early stages of developmentData has not been maintained
Issues with Available Data
ConclusionsDevelopments in online technology help fill the gap in easilyavailable, free, downloadable spatial data for both the generalpublic and agencies looking to better understand their resourcesthrough mapping.With this data, local agencies are calculating accurate counts ofvacant houses, structures for demolition, and lots to be cleared.Despite the importance of this project, these efforts do not addressthe problem that has plagued the Lower Ninth Ward since beforeHurricane Katrina—the severe lack of amenities. People will notreturn to these refurbished houses without a supermarket to shopin, schools to attend, and local forces to protect them.
Browser-Based Spatial Data
This map depicts the population for theLower Ninth Ward and Holy Crossneighborhoods in 2000. This data, using2010 Census values and boundaries, isdownloadable through ESRI.
This image (above left) is from Landsat/GLS 2000 data collected in 2009-2010.The image (above right) is from GoogleEarth. Using GoogleEarth's timeslider feature, one can assessimages of recovery from before the storm struck to current time. This particular image is from 2011.
Sources:City of New Orleans, Greater New Orleans Community Data Center, U.S.Census Bureau, NY Times, ESRI, lowernine.org, timesunion.com,archinect.com
Authorities are hard at workmapping blighted structuresand attempting to collectaccurate populationcounts.The map belowdepicts the condition of eachhouse. Vacant lots aresymbolized in green. Theoriginal document wascreated by lowernine.org
The image above is a screenshot from the City of New Orleans Lower 9 Lots Program. Thewebsite contains a limited amount of data that users can visualize and symbolize in differentways, in addition to discussing the data in forums and downloading the data.
New Orleans was struggling long before the Hurricane struck. In 1960, the population ofNew Orleans peaked at 627,525. To accommodate this enormous growth, the cityexpanded into low-lying marshland that was previously considered unfit for humanhabitation. These newer, lower-lying neighborhoods were hit hardest by the storm. (TheLower Ninth is higher than New Orleans East, Gentilly, Broadmoor and Lakeview, but itsuffered the most damage because of the two breaches of the Industrial Canal levee,which serves as the neighborhood's western boundary.) A year after Katrina, the city'spopulation plunged to about 200,000.
Kara Kuntz. Advanced GIS. Spring 2012. Final Project
Timesunion.com, January 2011
http://archinect.com/features/article/68296/the-pink-project
2000 Population22582409253126402737294329763278
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2976
2258
3278
2737
2943
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2409
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1303
568
1356
616
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1411
2010 Population
! Demolitions
320508568616830130313561411
0 0.5 10.25 Miles0 0.5 10.25 Miles