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/
www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
http://gldims.cr.usgs.gov/qfault/viewer.htm & http://www.world-stress-map.org
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
CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org
Full Feature DEM Bare Earth DEM
Northern San Andreas LIDAR: fault geomorphology
www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
GEON LiDAR hosting and interpolation - conceptual workflow
(also available for all DEM processing)
Other DEMs
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)
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
www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Connection Method• ArcIMS, Java Servlet, Manager
Program, Java Implemented Server
www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES
Java Servlet – Welcome Screen
Display information to user and communicates with the Manager program, relaying relevant information
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)
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])