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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Active tectonics, Digital Elevation Model analysis, and remote sensing in GEON
J Ramón Arrowsmith Department of Geological Sciences, Arizona State University, [email protected] http://activetectonics.la.asu.edu/GEONatASU/index.htm
http://www.geoinformaticsnetwork.org/swgeonet/
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
http://gldims.cr.usgs.gov/qfault/viewer.htm & http://www.world-stress-map.org
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CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org
Digital Elevation Data ChallengeLIght Detection And Ranging-with Chris Crosby • Airborne scanning laser
rangefinder• Differential GPS• Inertial Navigation
System
30,000 points per second at ~15 cm accuracy
Extensive filtering to remove tree canopy (virtual deforestation)
Figure from R. Haugerud, U.S.G.S – http://duff.geology.washington.edu/data/raster/lidar/About_LIDAR.html NCALM and GeoPBO ties!
DEM use case scenario
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CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org
Full Feature DEM Bare Earth DEM
Northern San Andreas LIDAR: fault geomorphology
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
GEON LiDAR hosting and interpolation - conceptual workflow
(also available for all DEM processing)
Other DEMs
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
http://asterweb.jpl.nasa.gov/
Very useful data, but difficult to locate appropriate scenes, acquire, process and manipulate data for many users.
So, we built a system to do “on-the-fly” processing and delivery in a variety of useful formats
(note that this was just presented at the ESRI User’s conference)
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
ASTER level-1B data have had system radiometric corrections and geometric coefficients applied and are reprojected to a given map projection.
2300 “granules” available
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Connection Method• ArcIMS, Java Servlet, Manager
Program, Java Implemented Server
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Java Servlet – Welcome Screen
Display information to user and communicates with the Manager program, relaying relevant information
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Manager ProgramPasses the request onto the next available server (running on GEON Node at ASU)
GEON grid nodes (4 Tb + 10 processors @ASU)
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www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Java Servlet - Results Screen
Display results of IDL processing to user and offer for download processed information (thumbnail and larger *.jpg; *.tar.gz contains full and 8x reduced GEOTIFF [*.tif and *.tfw])