Current status of HDF-EOS and access tools will be summarized. Update on HDF-EOS, HDFView plug-in and The HDF-EOS to GeoTIFF (HEG) conversion tool, including recent changes to the software, ongoing maintenance, upcoming releases, future plans, and issues will be discussed.

1. Status of HDF-EOS,
Related Software, and Tools
Abe Taaheri, Raytheon IIS
HDF & HDF-EOS Workshop XII
October 2008
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2. TOOLKIT / HDF-EOS Support
•
•
Maintenance support was funded on EMD Evolution
through May 2008
One year extension until May 2009
•
Current support






HDF-EOS2 & 5
SDP/MTD Toolkit
HDF-EOS plug-in for HDFView
HDF-EOS2 to GeoTIFF Converter (HEG)
Other Toolkit/HDF-EOS related software
Toolkit/HDF-EOS/HEG helpdesk
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3. ECS Support of HDF-EOS
• Both HDF4 and HDF5 based flavors of HDF-EOS are part
of ECS baseline.
• OS’s: Solaris (9, 10), Irix6.5 (64, n32),
Linux (including 64-bit Opteron and Itanium),
Mac OS X (Power PC and Mac Intel),
Windows XP(MTD Toolkit, HDF-EOS2 & 5, HEG, HDFView)
(Dropped support for Solaris 8, HP, HP11, Dec, IBM in 2.15 release)
• Planned full Cygwin support for late 2008
• Compilers: Fortran 77/90 & g77/pgf90 , C, C++, gcc, g++,
Intel Fortran (SGI Altix), gfortran (Mac Intel)
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4. Downloadable Software
• SDP/MTD Toolkit (Science Data Processing Tools)
• HDF-EOS2 (HDF4 based)
• HDF-EOS5 (HDF5 based)
• heconvert (converts HDF4 - based
Grid/Point/Swath structures to HDF-EOS 5
equivalents)
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5. Downloadable Applications
• HEG
- GeoTIFF conversion
- Spatial subsetting, Field Subsetting
- reprojection
- stitching, sub-sampling and more ….
• HDFView Plug-in, Java-based browser
(HDF4, HDF5, HDF-EOS 2 and 5 access)
• HE5View* (HDF5 - based browser)
• EOSView* (HDF4 - based browser)
* Dropped support for OS updates on July 2006
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6. Software Releases
Toolkit/HDF-EOS:
• Last release – March 2008
– TOOLKIT 5.2.15
– HDF-EOS 2.15, HDF- EOS5.1.11
with HDF4.2r3, HDF5-1.6.7, Szip2.1
• Next release – March 2009
– TOOLKIT 5.2.16
– HDF-EOS 2.16, HDF-EOS5.1.12
with new releases of HDF4, 5 (possibly 1.8.X)
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7. Software Releases (Cont.)
HEG (HDF-EOS2 to GeoTIFF Converter):
• Last release – August 2008
– Version 2.9
• Next release – May 2009
– Version 2.10
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8. Software Releases (Cont.)
HDF-EOS Plug-in for HDFView:
• Last release – September 2008
– Version 2.4
• Next release –
– For HDFView Version 2.5
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9. Software Releases (Cont.)
HECONVERT (HDF-EOS2 to HDF-EOS5
Converter):
• Last release – 2001, 2004
– Version ?
• Next release – Dec. 2008
– Version ?
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10. SDP Toolkit
•
Science Data Production (SDP) Toolkit :
collection of tools used by
- Science software developers who produce
code to process instrument data.
- HDF-EOS users who need to
• Access metadata in HDF-EOS files
• Perform Time/Date conversion
• Access Digital Elevation Model Data
• Access Ancillary Data, such as Digital Chart
of the World database (DCW), Olson World
Ecosystem files, DEM data files, etc.
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11. SDP Toolkit (cont.)
•
Tools provided in (SDP, MTD) Toolkit:
-
AA
CBP
CSC
CUC
DEM
EPH
GCT
IO
MEM
MET
PC
SMF
TD
(Ancillary Data Access)
(CELESTIAL Body Position)
(Coordinate System Conversion)
(Constant and Unit Conversions)
(Digital Elevation Model Access)
(Ephemeris Data Access)
(Geo Coordinate Transformation)
(Input Output (File I/O))
(Memory Management)
(Metadata Access)
(Process Control)
(Status Message File (Error/Status))
(Time and Date Conversion)
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12. What is HDF-EOS ?
• HDF-EOS is an extension to HDF which
standardizes storage of and access to common
Earth Sciences data structures
– By providing a single interface to data
structures common to earth science
– By providing a container for EOS inventory,
archive and product specific metadata
– By establishing a consistent relationship
between geolocation and science data.
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13. HDF-EOS 2
• HDF4 - based, storage format for EOS standard
products.
• Used operationally by MODIS, MISR, ASTER,
Landsat, AIRS and other EOS instruments
• Support for Grid/Point/Swath structures
• HDF4 and HDF-EOS 2 will be supported by
THG/NASA for the fore-seeable future.
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14. HDF-EOS 5
• Based on HDF5, a complete rewrite of HDF-EOS2
with a different user interface.
– First released in 2000.
– Format used by EOS Aura instruments
• Designed to ‘resemble’ HDF-EOS 2 to the
maximum extent possible.
– Supports same data structures
– Added prefix ‘HE5_’ to HDF-EOS 2 functions.
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15. HDFView
•
•
•
•
•
•
HDFView: A Java-based browser from THG for HDF4
and HDF5 – based data.
HDF-EOS plug-in extends HDFView to browse HDFEOS data in both versions.
The extension is a plug-in module and does not
change THG HDFView functionality. All copy, save,
editing, image display, etc. for HDF4 and 5 objects
remains.
Identical look and feel when displaying HDF and
HDF-EOS objects.
Users can access a complete breakdown of HDFEOS objects. e.g. grid information, projection info.,
dimensions, datafields, and attributes are displayed.
Current Support: SUN, SGI, LINUX, Mac, WINDOWS
platforms
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16. Swath, Grid, and Point Objects
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17. AMSR-E and OMI Point objects
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18. AMSR-E Swath
New Features in Release Version 2.4
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19. HE2 To HE5 Conversion
New Features in Release Version 2.4
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20. HDF-EOS to GeoTIFF Converter (HEG)
HEG: Utility that converts EOSDIS data from
HDF-EOS format to common Geographical
Information System (GIS)-compatible formats.
• Versions Available:
– Stand-alone: A downloadable desktop version
– Data Pool: Access through NASA archive online storage
– Implemented also in prototypes for Stand-alone Data Pool,
OGC (Open Geospatial Consortium) for Web Services
Chaining, and DOWS (Deploy OGC Web Services) on the
DAACs
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21. HEG 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)
Stitching (mosaicing) + subsetting + Reprojecting
Reprojection ( to UTM, PS, TM, STP, LCC, LAMAZ, GEO, SIN,
Albers)
Subsampling (Subsample stacks)
• Running from Command Line (batch jobs)
or with Java-based GUI
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22. HEG Functionality
• Metadata preservation/creation.
• Currently supports MODIS, MISR, ASTER, AIRS and AMSR-E
products on TERRA and AQUA (>115 products),
• Allows file selection from users local storage
• Operable on Sun, SGI, Win, Linux, MAC
• 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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23. Mt. Etna Eruption: MISR L1B
Stitched Blocks
Page 23

24. 2004 Hurricane Francis, MODIS
MOD021KM, Multi-Band GeoTIFF, 3 bands:
EV_1KM_RefSB, Bands 1,2,5
Page 24

25. AST_L1B, 2003 California Fires
Geo. projection, Multi-Band GeoTIFF,
(3 bands: Visible Near Infrared (VNIR))
….. and Subsetted
Two Swaths Stitched …..
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26. Major Development/Fixes
Last Releases
TOOLKIT/HDF-EOS:
 SZIP Insatallation: Default decoder,
Choice for encoder
 Choice for configuring HDF4 with/without SZIP
 Choice for disabling HDF4’s internal netCDF
 Choice for installing Toolkit/HDF-EOS in 32 or
64-bit modes in 64-bit Linux platforms
(except for Itanium; no –m32 flag)
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27. Major Development/Fixes (cont.)
 Support for new releases of HDF4/HDF5/SZIP
(HDF4.2r3, HDF5-1.6.7, SZIP-2.1)
 Installation fix for a problem caused by limits.h
in some Linux platforms
 Auto Configuration capability (like HDF) added
for both HDF-EOS2 and HDF-EOS5
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28. Major Development/Fixes (cont.)
 Support for Mac Intel platform. Drop of support
for Sun5.8, Dec, HP, HP 11, IBM
 Fixes for Lat/Lon to pixel conversions in DEM
tools for Linux to get results similar to those in
Unix platforms Add GDij2ll and GDll2ij APIs to
HDF-EOS and HDF-EOS5
 Modified accuracy check for quaternion in CSC
tools
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29. Major Development/Fixes (cont.)
 HDFEOSVersion string clean up in HDF-EOS5
 Added new utilities to dump lat/lon arrays for
grids in HDF-EOS and HDF-EOS5
 Fixed several other bugs for Grid. Swath and
Point objects (complete list in release notes)
Page 29

30. Major Development/Fixes (cont.)
HDF-EOS Plug-in for HDFView:
Current Support:
–
–
–
SUN, LINUX, WINDOWS,
and MAC (Power and Intel)
Auto installation of plug-in into HDFView
running self-extracting archives.
Adding to plug-in the fixes and enhancement
that went into HDFView2.4
Display image for selected pixels in the viewed
tables
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31. Major Development/Fixes (cont.)
–
–
–
–
–
Display Lat/Lon for a selected pixel in the
data field tables
Full Mac OSX support
Improved Help Window
New icons for activating Lat/Lon display for
Swath & Grid
Format conversion: HDF-EOS2 -> HDF-EOS5
Page 31

32. Major Development/Fixes (cont.)
HEG: Release
Spatial subsetting:
- AE-DyOcn, AE_DySno
• New Product: AMSR-E and ASTER (On-Demand L2)
- AMSR-E 5 day Snow
- AMSR-E Monthly Snow
- AMSR-E Weekly Ocean
- AMSR-E Monthly Ocean
- AMSR-E Daily 12 Km Sea Ice
- AMSR-E Daily 6 Km Sea Ice
- AMSR-E L2 Rain, AMSR-E Rain Grid
- ASTR_07XT, ASTR_09XT
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33. Major Development/Fixes (cont.)
• Stitching:
− MOD14A1 3-D fields (band selection)
− TM grids
• Multi-band geotif/HDF-EOS in Datapool
• Other Fixes:
− Interpolation correction with AIRS products
containing fillvalue in the data fields
− Pixel size unit consistency in conversion and stitch
GUIs.
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34. Major Development/Fixes (cont.)
− Correction for droping a column when
stitching MODIS SIN tiles.
− Correction to ignoring of Geographic pixel size
and processing with default pixel size
− Spatial subsetting fix for global AMSR-E garanules
− Correction for ignoring re-projection interpolation
type NN after stitching
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35. Future Plans
TOOLKIT/HDF-EOS:
• Auto Configuration for TOOLKIT
• Full Support for Cygwin platform
• Support for HDF5-1.8
• Validation tool for HDF-EOS5 files
• Performance improvement
– reading HDF format eph/att files in Toolkit
– HDF-EOS5 by redesigning some functions
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36. Future Plans (cont.)
HDF-EOS Plug-in for HDFView:
• More functionalities :
- Ability to modify input HDF-EOS2 granules.
- Ability to cut/paste objects, modify/delete attributes.
- Ability to create new grid/swath
HEG:
- Support for AMSR-E Level 3 Land (CEA projection)
- New MRT (MODIS Reprojection Tool) release updates
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37. Availability
• Access to libraries, applications, Documentation:
TOOLKIT:
http://newsroom.gsfc.nasa.gov/sdptoolkit/toolkit.html
HDFView:
http://newsroom.gsfc.nasa.gov/sdptoolkit/HDFView/
HDFView_hdfeos_plugin.html
HEG:
http://newsroom.gsfc.nasa.gov/sdptoolkit/HEG/HEGHome.html
• Email
– Abe_Taaheri@raytheon.com
– Landover_PGSTLKIT@raytheon.com
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