Educational Meeting: Spatial Analysis Examples (talk links)

  • Wednesday, January 19, 2011
  • 8:30 AM - 12:00 PM
  • Microsoft, 835 Market Street, Suite 700, San Francisco, CA 94103


  • Special price for members

Registration is closed
Spatial Analysis Examples
Wednesday, January 19, 2011
(updated with presenter slide links
on 2011 01 24)

Microsoft Campus
835 Market Street
Suite 700 
San Francisco, CA 94103

Tips, Tricks, and Stories from the front lines.

Spatial Analysis: the problem-solving aspect of GIS, or how certain sequences of geospatial processes reveal what can't be seen in a spreadsheet or graph.

Featuring three speakers:

1) Prof. Gary Li - Link_to_his_presentation
2) Brian B. Quinn - Link_to_terrain_presentation 
- - - - - - - - - - -Link_to_synthetic_flowline_talk
3) Tim Pudoff - Link_to_his_presentation

1) Prof. Gary Li - Geography Dept., CSU East Bay
will present two talks
  • Lying with Data Display
  • American Indian Travel Path Analysis

2) Brian B. Quinn - County of Marin, CDA / GIS and College of Marin Instructor will speak on two topics
  • Building the Integrated Topographic-Bathymetric Surface for MarinMap
ESRI Terrain Datasets fused existing photogrammetric contours and break lines with several high quality supplements, including USGS elevation data, NOAA and Corps of Engineers bathymetry, plus FEMA, NOAA, and private LiDAR surveys.  Terrain products from this model have been gridded county-wide at 40cm and coarser resolutions.  A 45cm grid has been provided to FEMA to assist the delineation of flood zones, and a 40cm grid serves as Marin County's terrain in Google Earth.

  • Beyond NHD: EDNA-style Synthetic Flow Lines with Hydro-enforcement for MarinMap
When a detailed terrain grid is available, one can refine the surface with hydraulic enforcement features to model culverts and storm system, then synthesize flow lines that more accurately represent surface flow, including streams.  This is a local example of the techniques used by USGS Elevation Derivatives for National Applications (EDNA), to produce more detailed flow lines for inclusion in the National Hydrography Database (NHD).

3) Tim Pudoff - Sonoma County GIS Manager and Santa Rosa Junior College Instructor
  • Sonoma County: Examples of GIS Analysis in Local Government Decision Support
Describing different types of analysis to address business needs from multiple departments.  Each example is structured as a question that is answered by a spatial result.

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