For info, to be assessed together with other effrots on this realm Best N ---------- Forwarded message ---------- From: Talbot Brooks <tbro...@deltastate.edu> Date: Wed, Mar 3, 2010 at 7:57 AM Subject: [CrisisMappers] Haiti terrain analysis for potential IDP camp flooding To: "crisismapp...@googlegroups.com" <crisismapp...@googlegroups.com>
All; Apologies in advance if this duplicates some efforts or prior posts - too much to keep track of right now (Haiti, Chile, classes, and paying projects - argh!!!). We played with a new product today that may be of interest to the groups working in Haiti and are concerned about the coming rains and IDP camp locations. We grabbed the 1-m RIT/World Bank DEM and derived 1-m, 5-m, and 10-m contours. We also used the DEM to generate a hillshade. The hillshade was layed in as the base layer and the GeoEye imagery layed on top with partial transparency - this gives a 3-D effect to the imagery. We stacked on top of that the contour, OSM, and MINUSTAH data to round things out. Have a look at let us know what you think. See the IDP_18QYF84865184.pdf file (please save locally before opening - 18MB) at: http://mississippi.deltastate.edu/data/haiti/Map_Products/ These are also fairly easy to use some common-sense analysis with - count the number of grid squares up slope, pay attention to slope/contour line density, look at the vegetation in the photo, and one can get a decent feel for runoff potential into camps. Apologies for it not being a TerraGo GeoPDF and just a standard GeoPDF - we lose compression and some of the detail when we go this route - TerraGo choked on this thing and we're puzzling through it now. Additional comments are welcomed, and if there's interest, I can put my advanced class on making some more if someone from UN OCHA or similar wants to help with prioritizing requests. Thanks, Talbot Brooks, Director Delta State University GIT Box 3325 Cleveland, MS 38733 USNG (NAD 83): 15SYT09823640<http://nmviewogc.cr.usgs.gov/Run.htm?BBOX=-90.74485,33.74149,-90.7262,33.7513&CLASSIDSON=6%7C20&LAYERSON=11914%7C9942%7C10362%7C9880%7C10361%7C10360%7C23115%7C1695&LAYERSOFF=17260%7C16837%7C1652%7C11777%7C16788%7C16787%7C16962%7C16964%7C22599> O: 662-846-4520 C: 662-588-8649 F: 662-846-4099 http://gis.deltastate.edu <http://mississippi.deltastate.eduand/> CONFIDENTIALITY. This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited. If you received this e-mail in error, please notify the sender and delete this e-mail from your system. (Please note Delta State University's email system blocks all email with .zip attachments) -- You received this message because you are subscribed to the Google Groups "CrisisMappers" group. To post to this group, send email to crisismapp...@googlegroups.com. To unsubscribe from this group, send email to crisismappers+unsubscr...@googlegroups.com<crisismappers%2bunsubscr...@googlegroups.com> . For more options, visit this group at http://groups.google.com/group/crisismappers?hl=en. -- Nicolas Chavent Humanitarian OpenStreetMap Team http://wiki.openstreetmap.org/wiki/WikiProject_Haiti Mobile (FRA): +33 6 75 14 29 70 Email: nicolas.chav...@gmail.com Skype: c_nicolas
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