Hdf eos status-workshp_xi_nov_2007

Current Status of HDF-EOS,Maintenance, Developments,

and Tools

Abe Taaheri, Raytheon IIS

HDF & HDF-EOS Workshop XI

November 2007

TOOLKIT / HDF-EOS Support

• Maintenance support is funded on EMD Evolution through May 2008

• One year extension until May 2009

• Current staff - One full-time developer for maintaining:

SDP/MTD Toolkit HDF-EOS2 & 5 HDF-EOS plug-in for HDFView HDF-EOS2 to GeoTIFF Converter (HEG) Other Toolkit/HDF-EOS related software Toolkit/HDF-EOS/HEG helpdesk

- One half-time developer for HEG maintenance

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), Windows XP,

Linux (including 64-bit Opteron and Itanium),

Mac OS X (MTD Toolkit, HDF-EOS2 & 5) (Dropped support for Solaris 8, HP, HP11, Dec, IBM for next release)

• adding Mac Intel support for 2007 release and full Cygwin support for 2008

• Compilers: Fortran 77/90 & g77/pgf90 , C, C++, gcc, g++

Downloadable Software and Applications

• SDP/MTD Toolkit (Science Data Processing Tools)• HDF-EOS2 (HDF4 based)• HDF-EOS5 (HDF5 based)• HE5View* (HDF5 - based browser)• EOSView* (HDF4 - based browser)• HDFView, Java-based browser (HDF4, HDF5, HDF-

EOS 2 and 5 access)• heconvert (converts HDF4 - based

Grid/Point/Swath structures to HDF-EOS 5 equivalents)

• HEG (GeoTIFF conversion, Spatial subsetting, Field Subsetting, reprojection, stitching, sub-sampling, etc.)

* Dropped support for OS updates on July 2006

Software Releases

Toolkit/HDF-EOS:• Last release – March 2006

- TOOLKIT 5.2.14, HDF-EOS 2.14, HDF-EOS5.1.10- with HDF4.2r1, HDF5-1.6.5-post5, Szip2.0

• Next release – November 2007- TOOLKIT 5.2.15, HDF-EOS 2.15, HDF-EOS5.1.11- with new releases of HDF4, HDF5, and SZIP

HDF-EOS Plug-in for HDFView:• Last release – May 2006

–Version 2.3 • Next release – Dec. 2007

–HDFView2.4 was released October 31 by The HDF Group

Software Releases (Cont.)

HEG (HDF-EOS2 to GeoTIFF Converter):• Last release – July 2007

–Version 2.8

• Next release – May 2008

–Version 2.9

SDP Toolkit

• Science Data Production (SDP) Toolkit is a 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

Chartof the World database (DCW), Olson World Ecosystem files, DEM data files, etc.

SDP Toolkit (cont.)

• Tools provided in (SDP, MTD) Toolkit:- AA (Ancillary Data Access)- CBP (CELESTIAL Body Position)- CSC(Coordinate System Conversion)- CUC (Constant and Unit Conversions)- DEM (Digital Elevation Model Access)- EPH (Ephemeris Data Access)- GCT (Geo Coordinate Transformation)- IO (Input Output (File I/O))- MEM (Memory Management)- MET (Metadata Access)- PC (Process Control)- SMF (Status Message File (Error/Status))- TD (Time and Date Conversion)

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.

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.

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.

HDFView

• HDFView: A 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.

• 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 HDF-EOS objects. e.g. grid information, projection info., dimensions, datafields, and attributes are displayed.

• Current Support: SUN, SGI, LINUX, Mac, WINDOWS platforms

Swath, Grid, and Point Objects

AMSR-E and OMI Point objects

AMSR-E Swath

New Features in Next Release Version 2.4

HEG: Utility that converts EOSDIS data from HDF-EOS format to common Geographical Information System (GIS)-compatible formats.

• Two versions available:–A downloadable desktop version –Access through NASA archive online storage (Data Pools)

– 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

HDF-EOS to GeoTIFF Converter (HEG)

HEG Functionality

• Conversion:–HDF-EOS (Swath or Grid ) to a single-band or multi-

band GeoTIFF’s–HDF-EOS Swath to HDF-EOS Grid and 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

HEG Functionality

• Metadata preservation/creation.• Currently supports MODIS, MISR, ASTER, AIRS and AMSR-E

products on TERRA and AQUA (>110 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).

Mt. Etna Eruption: MISR L1B Stitched Blocks

2004 Hurricane Francis, MODIS

MOD021KM, Multi-Band GeoTIFF, 3 bands: EV_1KM_RefSB, Bands 1,2,5

AST_L1B, 2003 California FiresGeo. projection, Multi-Band GeoTIFF,

(3 bands: Visible Near Infrared (VNIR))

Two Swaths Stitched …..

….. and Subsetted

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 Support for new releases of HDF4/HDF5/SZIP

(HDF4.2r2, HDF5-1.6.6, 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 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

Major Development/FixesNext Release: November 2007

Major Development/Fixes (cont.)

HDF-EOS Plug-in for HDFView:

Current Support: SUN, SGI, LINUX, WINDOWS, and MAC platforms

Last Release: Version 2.3– Display Point Objects– Display pixel's lat/lon for swath and grid images– Scientific notation in Table dataNext Release: Version 2.4– Auto installation of plug-in into HDFView running self-

extracting archives.– Display image for selected pixels in the viewed tables– Display Lat/Lon for a selected pixel in the data field tables– Mac OSX fixes for one-button mice– Better display of Plug-in User’s Guide– New icons for activating Lat/Lon display for Swath & Grid

Major Development/Fixes (cont.)

HEG: Last Release (Version 2.8)–Added Support for:

MOD02SSH, MYD02SSH, MOD14A1.v005, MYD14A1.005MOD29P1D.V005, MOD08_M3.v005, MOD11_L2.v005AMSR-E Snow and Ice, AMSR-E Ocean

–MISR Bug fixes & enhancements: Added “No-reprojection” for ouput in SOM projection Added “Nearest Neighbour” for sampling type Fixed problem with missing metadata for HDF-EOS outputs

–Added Albers Projection–New "Subsetter" functionality for Parameters (aka Fields).

This results in: • Output to HDF-EOS SWATH from input HDF-EOS SWATH• No alteration of input data because of projection operation.

HDF-EOS/Toolkit

Future Plans:

• Auto Configuration for TOOLKIT• Full Support for Cygwin platform• Support for HDF5-1.8• Performance improvement, if possible, for reading HDF

format ephemeris/attitude files in Toolkit• Performance improvement in HDF-EOS5 by redesigning some

functions• More functionalities in HDF-EOS Plug-in for HDFView:

- Format conversion: HDF-EOS2 -> HDF-EOS5- Improved Help Window- Ability to modify input HDF-EOS2 granules. - Ability to cut/paste objects, modify/delete attributes.- Ability to create new grids/swaths

Availability

• Access to libraries, applications, Documentation: TOOLKITTOOLKIT: : http://newsroom.gsfc.nasa.gov/sdptoolkit/toolkit.htmlhttp://newsroom.gsfc.nasa.gov/sdptoolkit/toolkit.html HDFViewHDFView::http://newsroom.gsfc.nasa.gov/sdptoolkit/HDFView/http://newsroom.gsfc.nasa.gov/sdptoolkit/HDFView/

HDFView_hdfeos_plugin.htmlHDFView_hdfeos_plugin.html

HEGHEG:: http://newsroom.gsfc.nasa.gov/sdptoolkit/HEG/HEGHome.htmlhttp://newsroom.gsfc.nasa.gov/sdptoolkit/HEG/HEGHome.html

• Email–[email protected]–[email protected]

HDF-EOS5: Added a routine to return list of aliases for a field Used HDF5’s H5T_C_S1 datatype for string type Added Fortran wrapper for SWwritedatameta() routine Replaced symbol “H5E_NONE_MAJOR” with other symbols

for better description of errors Ported to Solaris 9 and Solaris 10 Fixed POINT object for:

- linkage between levels

- updating levels

- writing Forward and Backward Linkage data

- char field inquiry

Major Development/FixesLast Release

Fixed subsetting problem in HDF-EOS5 Grid (correction to conversion of DMS degree to Decimal degree).

Set LD_LIBRARY_PATH for SZIP/HDF5 shared libraries in installation and environment setting scripts

TOOLKIT/HDF-EOS2: Ported to Solaris 9 and Solaris 10 Gdapi.c changes for adding more significant digits after

the decimal point to projection parameters if needed. chkeph utility fixes for reading binary ephemeris files

(files with different endiannes than the machine) SGI 7.4.2 compiler support orbsim fixes for Linux to create files similar to those in

UNIX platforms (Random number generation fixes)

Major Development/Fixes (cont.)Last Release

Hdf eos status-workshp_xi_nov_2007

Technology

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