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Available Services:
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Recent Work: Collaborated with Nelson Copp to produce two bicycling books. "Cycling the Palm Springs Region" and "Cycling the Trails of San Diego: A Mountain Biker's Guide". I created all the maps. The Palm Springs book features 35 rides in the Coachella Valley of southern California. The San Diego book features 50 rides in San Diego County. I created a large folding trails map for Mission Trails Regional Park in San Diego, California Used GIS to assist the Riverside Municipal Museum in selecting a new site for their museum building. A detailed report is available in PDF format. Provided input to other geological consultants doing seismic work in the Inland Empire
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Click on image on-line version of PowerPoint (best viewed with Explorer 6)
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Continuing
Work on the Fontana Seismic Trend: Seismic Hazard Analysis of the "Fontana Trend". Ongoing study and topic for a Master's in GIS thesis. Submitted to Thesis committee in September, 2007 and accepted for publishing in October, 2007. Click to download a PDF copy (106 MB) or a smaller, 23 MB version (maps are at a lower resolution). Click to see an animation of the hypocenters of the earthquakes displayed on the map to the left. It is a 3 dimensional rotating depiction of the image shown at the top left of this page. It shows depth to the hypocenters in kilometers from the surface. Only quakes with good location quality are displayed. It is 12 MB, so may take a while to download and open. An epicenter is the location on the earth's surface directly above the hypocenter or focus of an earthquake (the point in the earth's crust where the break or rupture begins). Mapping earthquakes two-dimensionally only reveals a portion of the picture. Mapping them three-dimensionally provides a view of each earthquake event in relation to other nearby events. If you have enough points, you may see a pattern emerge. This is the case for the "Fontana Trend". A fuzzy planar pattern can be discerned when the 3-D view is rotated using either ESRI's ArcScene or ArcView 3-D Analyst (you may be able to pick it out in the 3-D animation described above). This planar pattern appears to be dipping about 86 to 79 degrees to the northwest and most likely consists of two fault planes with an offset (step-over) between. Click to download a large PowerPoint 2003 (77 MB) presentation of what I had done as of November, 2006 on my Master's Thesis (presented at Inland Empire Geological Society on November 9, 2006). Presented a poster session of thesis work to the Geological Society of America, ESRI User Conference and Southern California Earthquake Center Conference. |
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Availability: Margaret is available for Consulting on a part-time basis currently. Specialties include cartographic output for printing or reports, writing and/or editing reports, GIS analysis and more. She currently works for LSA Associates in Riverside Monday - Friday, so is available evenings and weekends.
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