Www.iagt.org NASA LiDAR and the EarthScope Spatial Data Explorer Fred Pieper March 2006.

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Presentation transcript:

NASA LiDAR and the EarthScope Spatial Data Explorer Fred Pieper March 2006

NASA LiDAR/ALSM NASA Contribution to EarthScope Available to entire Geophysical Community Areas Currently Available: –San Andreas –Mt. Rainier –Mt. St. Helens –Darrington, WA Types of Products: –Bald Earth (DEM & Shaded Relief) –Highest Surface (DEM & Shaded Relief) –Potential for Others

NASA LiDAR File Characteristics Imagery Assembled into Mosaics –based on USGS 7.5 minute quadrangle boundaries –east-west strip covering north or south half of adjacent quadrangles DEMs at 6 foot Grid Spacing, 13 cm Vertical Accuracy Shaded relief images –Illumination Azimuth: 225 degrees –Illumination Elevation: 60 degrees –3x3 kernel size GeoTIFF format: 5 – 150 MB JPG Thumbnails FGDC Metadata

Example LiDAR Products Bald Earth DEM Highest Surface DEM Bald Earth Shaded Relief

Accessing NASA LiDAR via EarthScope Spatial Data Explorer

ES SD-Explorer Background Query, Browse, and Download Geospatial Observations Java application based on technology initially developed by NASA Code 935 (Applied Information Sciences Branch) Modified by IAGT to support various program initiatives including EarthScope Central Metadata Database (MySQL) Geospatial Observations can be in any data format

Access via EarthScope Site

Application & Data Hosted by IAGT

Guest or Registered Users

Batch Files for UNIX & Windows

EarthScope Spatial Data Explorer

Login: Guest or Private Credentials

Ready to Go

Map Interaction

Zoomed In with Grid Off

Observation Query Filters

Keyword Filter

Initial Limited Query Results

Menu Settings: Query Results

Modified Query Results

Adding a Geospatial Region Filter

Query Results with Region Filter

Observation Extents on Map

Multiple Selections

Browse Selections

Download Observations

Example Derivative Product

Example Derivative Product

Other NASA Data Available Landsat ASTER SRTM

Questions? Poster Fred Pieper Dave Harding