Using Virtual Earth to Visualize Fire Risk (Sept 2008)

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Information about Using Virtual Earth to Visualize Fire Risk (Sept 2008)

Published on February 5, 2009

Author: dbouwman



Talk given at GIS In The Rockies in September 2008, this talk reviews some work we did using Virtual Earth to visualize fire risk data.

Visualizing Fire Risk Virtual in Earth Dave Bouwman / GIS In the Rockies 2008

who is this guy

Fort Collins ArcDeveloper Group Fort Collins Alt.NET Group

~ minutes


live demo

Surface Fuels FBPS 1 - Short grass (1 ft.) FBPS 2 - Timber (grass and understory) FBPS 3 - Tall grass (2.5 ft.) FBPS 4 - Chaparral FBPS 5 - Brush FBPS 6 - Dormant brush, hardwood slash FBPS 7 - Southern rough FBPS 8 - Closed timber litter FBPS 9 - Hardwood (long-needle pine) litter FBPS 10 - Timber (litter and understory) FBPS 11 - Light slash FBPS 12 - Medium slash FBPS 96 - Urban FBPS 97 - Non-burnable agriculture FBPS 98 - Water FBPS 99 - Non-burnable, barren 10

Fire Occurrence Areas Fires per 1000 acres per year Non-Burnable 0 - 0.024 0.025 - 0.049 0.050 - 0.099 0.100 - 0.199 0.200 - 0.290 0.291 - 0.399 0.400 - 0.599 0.600 - 0.999 1.000 - 1,000 11

Wildfire Threat Non-Burnable Low Moderate High 13

spatial data in ArcSDE

ArcGIS Server Integration

users non-technical want

relevant answers

these users understand




right tools


9.3 ArcGIS Server


“baked in” tile caching

ArcGIS Javascript Extension for Virtual Earth

only supports “fused” caches


on the fly

“other” tile caching

tile layer in virtual earth

Virtual Earth API


quadkey parsing

sample code

Tile Server* • Opensource • Plug-in model • ArcGIS Server • ArcIMS • Any WMS Server *2nd Prize in ESRI’s 2008 ArcGIS Server Code Challenge

TileService Map Server Layer1 Layer2 Layer3 Layer4 Layer5

TileService Map Server Layer1 Layer2 Layer3 Layer4 Layer5

why wms


Spatial = Slow(er)

tables = FAST

stored procedure Select * from FIREPOINTS where POINT_X > LONMIN and POINT_X < LONMAX and POINT_Y > LATMIN and POINT_Y < LATMAX


javascript script service (asmx) bbox GetPoints GetPoints Cluster Json { quot;ClusteredPointLocationIdsquot;:[3,5,31], quot;PointLocationIdquot;:3, quot;IsClusteredquot;:true, quot; MarkerClassquot;:firepin, Locationquot;:{quot;Latquot;:-2.15,quot;Lonquot;:-80.53} }


simple tools complex questions


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