HDFEOS to Geo TIFF Conversion Tool HDFEOS Plugin

HDF-EOS to Geo. TIFF Conversion Tool & HDF-EOS Plug-in for HDFView Abe Taaheri, Raytheon IIS HDF & HDF-EOS Workshop XIV Champaign, IL Sep. 29, 2010 Page 1

HEG Utility to convert EOSDIS data from HDF-EOS 2 to Geo. TIFF formats. • Versions Available: – Stand-alone: A downloadable desktop version – Data Pool: Access through NASA archive online storage Page 2

HEG Functionality • Conversion: – HDF-EOS (Swath or Grid ) to a single-band or multi-band Geo. TIFF’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) Page 3

HEG 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 Page 4

HEG Functionality • Metadata preservation/creation. • Currently supports MODIS, MISR, ASTER, AIRS, AMSR-E products on TERRA and AQUA – more than 115 products • Operable on Sun, SGI, Win, Linux, MAC Page 5

HEG 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). Page 6

Examples (MISR) Mt. Etna Eruption: MISR L 1 B Stitched Blocks Page 7

Examples (MODIS) 2004 Hurricane Francis, MODIS MOD 021 KM, Multi-Band Geo. TIFF, 3 bands: EV_1 KM_Ref. SB, Bands 1, 2, 5 Page 8

Examples (ASTER) AST_L 1 B, 2003 California Fires Geo. projection, Multi-Band Geo. TIFF (3 bands): Visible Near Infrared (VNIR) …. . and Subsetted Two Swaths Stitched …. . Page 9

HDFView Plug-in • HDFView A Java-based browser from The HDF Group for HDF 4 and HDF 5 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 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 Page 10

HDFView Plug-in • Some features in the Plug-in Page 11

Swath, Grid, and Point Objects Plug-in file treeview Swath/Grid Lat/Lon display Page 12

AMSR-E Swath One click to convert HE 2 to HE 5 file format Page 13

AMSR-E Swath Getting Image of selected pixels in a table Getting lat/lon for a selected pixel in a table Page 14

AMSR-E and OMI Point objects Different icons for different hdf-eos objects HE 2 Point Object HE 5 Point Object Page 15

Availability • Download, Documentation, Help: HDFView: http: //newsroom. gsfc. nasa. gov/sdptoolkit/ HDFView/HDFView_hdfeos_plugin. html HEG: http: //newsroom. gsfc. nasa. gov/sdptoolkit/ HEG/HEGHome. html Page 16

Help, Comments • Questions, Comments, Requests: Ø Abe_Taaheri@raytheon. com Ø Landover_PGSTLKIT@raytheon. com Ø http: //www. hdfeos. org/ : HDF-EOS Forum Page 17

Thank You! Page 18