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HDF-EOS to GeoTIFF HDF-EOS to GeoTIFF Conversion Tool Conversion Tool
& & HDF-EOS Plug-in for HDFViewHDF-EOS Plug-in for HDFView
Abe Taaheri, Raytheon IIS
HDF & HDF-EOS Workshp XIII
Riverdale, MD
November 3, 2009
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Utility to converts EOSDIS data from HDF-EOS2 to GeoTIFF formats.
• Versions Available:– Stand-alone: A downloadable desktop version – Data Pool: Access through NASA archive online
storage
HEGHEG
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HEG FunctionalityHEG Functionality
• Conversion:
–HDF-EOS (Swath or Grid ) to a single-band or multi-band GeoTIFF’s
–HDF-EOS Swath to HDF-EOS Grid or Swath
–HDF-EOS Swath or Grid to generic Binary (with metadata file)
• Subsetting (spatial, field, band)
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HEG FunctionalityHEG Functionality
• Stitching (mosaicing) + subsetting + Reprojecting
• Reprojection ( to UTM, PS, TM, STP, LCC, LAMAZ,
GEO, SIN, Albers, CEA)
• Subsampling (Subsample stacks)
• Running from Command Line (batch jobs)
or with Java-based GUI
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HEG FunctionalityHEG Functionality
• Metadata preservation/creation.
• Currently supports
MODIS, MISR, ASTER, AIRS, AMSR-E products on TERRA and AQUA (>115 products),
• Operable on Sun, SGI, Win, Linux, MAC
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HEG FunctionalityHEG Functionality
• Integrated into ECS Data Pool–Reduces the transfer time of HDF-EOS data sets
(if subset is requested)
–Provides the end-user with the exact file required by their application
• User Interface–Portable, written in Java.
–Not dependent on COTS (eg. IDL).
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ExamplesExamples
Mt. Etna Eruption: MISR L1B Stitched BlocksMt. Etna Eruption: MISR L1B Stitched Blocks
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ExamplesExamples
MOD021KM, Multi-Band GeoTIFF, 3 bands: EV_1KM_RefSB, Bands 1,2,5
2004 Hurricane Francis, MODIS2004 Hurricane Francis, MODIS
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ExamplesExamples
Two Swaths Stitched …..
….. and Subsetted
AST_L1B, 2003 California FiresAST_L1B, 2003 California FiresGeo. projection, Multi-Band Geo. projection, Multi-Band GeoTIFF (3 bands):GeoTIFF (3 bands):Visible Near Infrared (VNIR)Visible Near Infrared (VNIR)
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HDFView Plug-inHDFView Plug-in
• HDFViewA Java-based browser from THG for
HDF4 and HDF5 based data.
• HDF-EOS plug-in
– Extends HDFView to browse HDF-EOS data in both versions (2 & 5).
– Is a plug-in module does not change THG HDFView functionality
– identical look and feel when displaying HDF and HDF-EOS objects
– access to complete breakdown of HDF-EOS objects. e.g. grid info, projection info, dims, datafields, and attributes
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HDFView Plug-inHDFView Plug-in
• Some features in the Plug-in
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Swath, Grid, and Point ObjectsSwath, Grid, and Point Objects
Plug-in
file
treeview
Swath/Grid
Lat/Lon
display
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AMSR-E SwathAMSR-E Swath
One click to convert HE2 to HE5 file format
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AMSR-E SwathAMSR-E Swath
Getting Image of selected pixels in a table
Getting lat/lon for a selected pixels in a table
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AMSR-E and OMI Point objects
HE2
Point
Object
HE5
Point
Object
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AvailabilityAvailability
• Download, Documentation, Help:
HDFViewHDFView::http://newsroom.gsfc.nasa.gov/sdptoolkit/http://newsroom.gsfc.nasa.gov/sdptoolkit/
HDFView/HDFView_hdfeos_plugin.htmlHDFView/HDFView_hdfeos_plugin.html
HEGHEG: : http://newsroom.gsfc.nasa.gov/sdptoolkit/http://newsroom.gsfc.nasa.gov/sdptoolkit/
HEG/HEGHome.htmlHEG/HEGHome.html
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AvailabilityAvailability
• Questions, Comments, Requests:
http://www.hdfeos.org/ : : HDF-EOS ForumHDF-EOS Forum
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Thank You!Thank You!
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