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NASA LiDAR and the EarthScope Spatial Data Explorer

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:

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NASA LiDAR and the EarthScope Spatial Data Explorer

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

  2. 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

  3. 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

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

  5. Accessing NASA LiDAR viaEarthScope Spatial Data Explorer

  6. 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

  7. Access via EarthScope Sitehttp://www.earthscope.org/data/explorer.php

  8. Application & Data Hosted by IAGThttp://www.iagt.org/earthscope/es-sde.asp

  9. Guest or Registered Users

  10. Batch Files for UNIX & Windows

  11. EarthScope Spatial Data Explorer

  12. Login: Guest or Private Credentials

  13. Ready to Go

  14. Map Interaction

  15. Zoomed In with Grid Off

  16. Observation Query Filters

  17. Keyword Filter

  18. Initial Limited Query Results

  19. Menu Settings: Query Results

  20. Modified Query Results

  21. Adding a Geospatial Region Filter

  22. Query Results with Region Filter

  23. Observation Extents on Map

  24. Multiple Selections

  25. Browse Selections

  26. Download Observations

  27. Example Derivative Product

  28. Example Derivative Product

  29. Other NASA Data Available • Landsat • ASTER • SRTM

  30. Questions? • http://www.earthscope.org/data/explorer.php • http://www.iagt.org/earthscope/es-sde.asp • Poster • Fred Pieper fpieper@iagt.org 315-252-8669 • Dave Harding David.J.Harding@nasa.gov 301-614-6503

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