nasa lidar and the earthscope spatial data explorer
DESCRIPTION
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: - PowerPoint PPT PresentationTRANSCRIPT
www.iagt.org
NASA LiDAR and the EarthScope NASA LiDAR and the EarthScope Spatial Data ExplorerSpatial Data Explorer
Fred Pieper
March 2006
www.iagt.org
NASA LiDAR/ALSMNASA 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
www.iagt.org
NASA LiDAR File CharacteristicsNASA 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
www.iagt.org
Example LiDAR ProductsExample LiDAR Products
Bald Earth DEM Highest Surface DEMBald Earth
Shaded Relief
www.iagt.org
Accessing NASA LiDAR viaAccessing NASA LiDAR viaEarthScope Spatial Data ExplorerEarthScope Spatial Data Explorer
www.iagt.org
ES SD-Explorer BackgroundES 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
www.iagt.org
Access via EarthScope SiteAccess via EarthScope Sitehttp://http://www.earthscope.org/data/explorer.phpwww.earthscope.org/data/explorer.php
www.iagt.org
Application & Data Hosted by IAGTApplication & Data Hosted by IAGThttp://www.iagt.org/earthscope/es-sde.asphttp://www.iagt.org/earthscope/es-sde.asp
www.iagt.org
Guest or Registered UsersGuest or Registered Users
www.iagt.org
Batch Files for UNIX & WindowsBatch Files for UNIX & Windows
www.iagt.org
EarthScope Spatial Data ExplorerEarthScope Spatial Data Explorer
www.iagt.org
Login: Guest or Private CredentialsLogin: Guest or Private Credentials
www.iagt.org
Ready to GoReady to Go
www.iagt.org
Map InteractionMap Interaction
www.iagt.org
Zoomed In with Grid OffZoomed In with Grid Off
www.iagt.org
Observation Query FiltersObservation Query Filters
www.iagt.org
Keyword FilterKeyword Filter
www.iagt.org
Initial Limited Query ResultsInitial Limited Query Results
www.iagt.org
Menu Settings: Query ResultsMenu Settings: Query Results
www.iagt.org
Modified Query ResultsModified Query Results
www.iagt.org
Adding a Geospatial Region FilterAdding a Geospatial Region Filter
www.iagt.org
Query Results with Region FilterQuery Results with Region Filter
www.iagt.org
Observation Extents on MapObservation Extents on Map
www.iagt.org
Multiple SelectionsMultiple Selections
www.iagt.org
Browse SelectionsBrowse Selections
www.iagt.org
Download ObservationsDownload Observations
www.iagt.org
Example Derivative ProductExample Derivative Product
www.iagt.org
Example Derivative ProductExample Derivative Product
www.iagt.org
Other NASA Data AvailableOther NASA Data Available
• Landsat• ASTER• SRTM
www.iagt.org
Questions?Questions?
• http://www.earthscope.org/data/explorer.php• http://www.iagt.org/earthscope/es-sde.asp
• Poster
• Fred Pieper [email protected] 315-252-8669• Dave Harding [email protected] 301-614-
6503