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<hr><br>
The HDF<hr><br>
The HDF-EOS To GeoTIFF Conversion Tool (HEG) is a tool developed to allow a user
to reformat, re-project and perform stitching/mosaicing and subsetting operations on
HDF-EOS objects. It can also reformats and re-project some SMAP, VIIRS and SRTM products.
The output GeoTIFF file is ingestible into commonly used GIS
applications. HEG will also write to HDF-EOS Grid & SWATH formats (i.e for Subsetting purposes)
and native (or raw) binary. HEG presently works with MODIS (AQUA and TERRA), ASTER, MISR, AIRS, and
AMSR-E HDF-EOS data sets.It also handles OMI HDF-EOS5 grid, SMAP L3/L4 HDF5 data sets, VIIRS L2/L3
netCDF/HDF-EOS5 products staged
at the DAACs, and some SRTM binary products at LPDAAC.<br><br>
<hr><br>
Brief Summary of Features include:
<ul type="disc">
<li><b>Reprojection</b></li>
<li><b>Spatial</b> (geolocation) <b>Subsetting</b></li>
<li><b>Band</b> and <b>Parameter</b> (aka Field) <b>Subsetting</b> of HDF-EOS datasets</li>
<li>Support for <b>MODIS, ASTER, MISR, AIRS, AMSR-E, SRTM, VIIRS, and SMAP(and some OMI, MOPITT, etc)</b><br>
<a href="HEGProductList.html">(Check List of Supported Products for full details)</a></li>
<li><b>Format Conversion</b> of various output Format types: GeoTIFF, HDF-EOS GRID & SWATH,
MultiBand GeoTIFF, Multi-Band HDF-EOS GRID & SWATH, and native binary.</li>
<li>Format Conversions without reprojection or manipulation of input data.
Allows data to remain in original unaltered state.</li>
<li><b>Stitching</b> (or <b>mosaicing</b>) HDF-EOS SWATH and GRID datasets</li>
<li>Stitching with combinations of Reformatting/Reprojection/Subsetting Operations</li>
<li>Data subsampling</li>
<li>Control of various parameters including output pixel resolution and output projection parameters</li>
<li>Metadata preservation and creation</li>
<li><b>Java GUI</b></li>
<li><b>Command-line interface</b> (Useful for running batch<li>Metadata jobs.preservation This is usually seen in automated production
environments where large quantities of granules are processed.)<and creation</li>
<li><b>Java GUI</b></li>
<li>Supported Platforms: <b>LINUX, WINDOWS, SUN(old versions of HEG), and MAC OSX</b> (built on Darwin Kernel Version 16.7.0)</li>
</ul>
<hr><li><b>Command-line interface</b> (Useful for running batch jobs. This is usually seen in automated production
environments where large quantities of granules are processed.)</li>
<b><font color="purpule">For future HDF-EOS/HEG/HDFView plug-in release announcements </b>
<a href="https://lists.nasa.gov/mailman/listinfo/hdf-eos">please join HDF-EOS Listserver! </a>(Initiated May 23, 2012)</font>
<hr><br>
<a ><font color="red">Please note that binaries for 2.12 and older have been removed from our download site.</font></a><br><br>
<a href="javascript:InsertContent('id11');">New Features/Enhancements/Bug Fixes in version 2.15 (<a href="HEG215/HEG_2.15_Release_Notes"><font color="red">Released April 2019 </font></a>)<br><br><li>Supported Platforms: <b>LINUX, WINDOWS, SUN(old versions of HEG), and MAC OSX</b> (built on Darwin Kernel Version 16.7.0)</li>
</ul>
<hr>
<b><font color="purpule">For future HDF-EOS/HEG/HDFView plug-in release announcements </b>
<a href="https://lists.nasa.gov/mailman/listinfo/hdf-eos">please join HDF-EOS Listserver! </a>(Initiated May 23, 2012)</font>
<hr><br>
<a ><font color="red">Please note that binaries for 2.12 and older have been removed from our download site.</font></a><br><br>
<a <div idhref="id11" align="left" style="display: none;">
<ul type="disc">
<li> 1) Support for new products</li>
<ol type="a">
<li> - AIRS2RET</li> javascript:InsertContent('id11');">New Features/Enhancements/Bug Fixes in version 2.15 (<a href="HEG215/HEG_2.15_Release_Notes"><font color="red">Released April 2019 </font></a>)<br><br>
<li> - MOPITT</li>
<li><div - VIIRS (VNP13A2, VNP13A3, VNP13C1,VNP14A1, VNP15A2H, VNP21A1D, VNP21A1N, VNP21A2, VNP29, VNP43I1,
id="id11" align="left" style="display: none;">
<ul type="disc">
<li> 1) Support VNP43I2,for VNP43I3, VNP43I4, VNP43IA1, VNP43IA2, VNP43IA3, VNP43IA4, VNP43M1, VNP43M2, VNP43M3, VNP43M4,
new products</li>
<ol type="a">
<li> - AIRS2RET</li>
<li> VNP43MA1, VNP43MA2,VNP43MA3, VNP43MA4)< - MOPITT</li>
<li> - AST_L1T</li>
</ol>
<li> 2) Batch processing added in HEG Stitch GUI process</li>
<li> 3) Stitching support for SRTM and VIIRS</li>
<li> 4) Support for CF Conventions for SMAP L4 products</li>
<li> 5) Field Image for Spatial subset support was only provided for GRID products. Now SWATH products are also
supported.</li>
<li> 6) Geolocated image was provided only for Sinusoidal Tiles. This version displays the geolocated image of the
input file for SWATH and other non-sinusoidal projections as well</li>
<li> 7) Other bug fixes including fixes to the conversion script in batch process on Windows</li>
</ul>
</div>
<a href="javascript:InsertContent('id10');">New Features/Enhancements/Bug Fixes in version 2.14 (<a href="HEG214/HEG_2.14_Release_Notes"><font color="red">Released September 2017 </font></a>)<br><br>
<div id="id10" align="left" style="display: none;">
VIIRS (VNP13A2, VNP13A3, VNP13C1,VNP14A1, VNP15A2H, VNP21A1D, VNP21A1N, VNP21A2, VNP29, VNP43I1,
VNP43I2, VNP43I3, VNP43I4, VNP43IA1, VNP43IA2, VNP43IA3, VNP43IA4, VNP43M1, VNP43M2, VNP43M3, VNP43M4,
VNP43MA1, VNP43MA2,VNP43MA3, VNP43MA4)</li>
<li> - AST_L1T</li>
</ol>
<li> 2) Batch processing added in HEG Stitch GUI process</li>
<li> 3) Stitching support for SRTM and VIIRS</li>
<li> 4) Support for CF Conventions for SMAP L4 products</li>
<li> 5) Field Image for Spatial subset support was only provided for GRID products. Now SWATH products are also
supported.</li>
<li> 6) Geolocated image was provided only for Sinusoidal Tiles. This version displays the geolocated image of the
input file for SWATH and other non-sinusoidal projections as well</li>
<li> 7) Other bug fixes including fixes to the conversion script in batch process on Windows</li>
</ul>
</div>
<ul<a typehref="disc">
<li> 1) More bug fixes concerning issues with multiple runs, output GeoTIFFjavascript:InsertContent('id10');">New Features/Enhancements/Bug Fixes in version 2.14 (<a href="HEG214/HEG_2.14_Release_Notes"><font color="red">Released September 2017 </font></a>)<br><br>
reading problems by some GIS tools,</li>
<li> 2) Improvement in GUI user interaction concerning field images
<div id="id10" align="left" style="display: none;">
used for subsetting Lat/Lon settings</li>
<li> - HDFEOS5 products</li><ul type="disc">
<li> 1) More bug fixes concerning issues with multiple runs, output GeoTIFF
reading problems by <li>some - Swath products<GIS tools,</li>
<li> 32) Support for LINUX 32</li>
<li> 4) Support for some new products</li>
<li> o SMAP-S: Combined SMAP and Sentinel data for high-resolution</li>
<li>Improvement in GUI user interaction concerning field images
used for subsetting Lat/Lon settings</li>
<li> Soil- Moisture productHDFEOS5 <products</li>
<li> o SRTM (Enhanced Shuttle Land Elevation Data from
<li> - Swath products</li>
<li> 3) Support for Shuttle Radar Topography Mission) binary data at LPDAAC: <LINUX 32</li>
<li> 4) Support for some new products</li>
<li> - SRTMGL1 (1-arc-second)<o SMAP-S: Combined SMAP and Sentinel data for high-resolution</li>
<li> Soil Moisture - SRTMIMGR (1-arc-second)product </li>
<li> o SRTM (Enhanced Shuttle Land Elevation - SRTMIMGM (1-arc-second)</li>Data from
<li> Shuttle Radar -Topography SRTMGL3Mission) binary data (3 arc-second)at LPDAAC: </li>
<li> - SRTMGL3SSRTMGL1 (3 1-arc-second) </li>
<li> - SRTMGL30SRTMIMGR (30 1-arc-second)</li>
<li> o VIIRS VNP10, VNP30, VNP21, and VNP14 L2 data</li>
<li> o VIIRS VNP09A1, VNP09H1, VNP09GA, VNP13A1 and VNP09CMG L3 data</li>
<li> (In addtion to these VIIRS L3- products,SRTMIMGM the shortnames for other VIIRS
(1-arc-second)</li>
<li> L3- productsSRTMGL3 are added to HEG. These products may also work with HEG
(3 arc-second) </li>
<li> when- theySRTMGL3S become available and have structure similar to VNP09A1 or
(3 arc-second) </li>
<li> - SRTMGL30 VNP09CMG. At the time of this release samples for only 5 L3 products
(30 arc-second)</li>
<li> o VIIRS VNP10, VNP30, VNP21, and VNP14 L2 data</li>
<li> o VIIRS VNP09A1, VNP09H1, VNP09GA, VNP13A1 and were available for testing.) <VNP09CMG L3 data</li>
<li> 5) netCDF output for L2 products</li>
<li> 6) MODIS/VIIRS Sinusoidal tile location image</li>
<li> 7) Support for more than 20 Ellipsodal/Spherical Earth models/Datums</li>
<li> 8) Support for Solaris 11 was dropped becuase of compiler problems</li>
<li> 9) Support for Sinusoidal projection in GCTP for
(In addtion to these VIIRS L3 products, the shortnames for other VIIRS
L3 products are added to HEG. These products may also work with HEG
when they Ellipsoidalbecome earthavailable model (WGS84), for support of datum/ellipsoid change
and have structure similar to VNP09A1 or
</li>
VNP09CMG. At the time of this release samples for only 5 L3 </ul>products
were available for testing.) </div>li>
<li> 5) netCDF output for <a href="javascript:InsertContent('id9');">New Features/Enhancements/Bug Fixes in version 2.13 (<a href="HEG_2.13_Release_Notes.html"><font color="red">Released November 2015</font></a>)<br><br>
<div id="id9" align="left" style="display: none;">
<ul type="disc">
<li> 1) More bug fixes concerning issues with multiple runs, output GeoTIFF
reading problems by some GIS tools, Subsetting MISR to requested
area (after stitching needed blocks), hang-up for some MISR
products, Stitch problems with MODIS swath granules, Better
interpolation for swath conversion </li>
<li> 2) Improvement in GUI user interaction concerning field images for 3-D
and 4-D fields used for subsetting Lat/Lon setting</li>
<li> 3) Support for Windows 8 and 10 and Solaris 11 (32-bit)</li>
<li> 4) Internal batch processing for large quantities of granules from the same product.</li>
<li> 5) Support for some new products</li>
<ol type="a">
<li> SPL3FTA: SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State</li>
<li> SPL3SMA: SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture</li>
<li> SPL3SMP: SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture</li>
<li> SPL3SMAP: SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil
Moisture</li>
<li> SPL4SMAU: SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil
Moisture Analysis Update</li>
<li> SPL4SMGP: SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil
Moisture Geophysical Data</li>
<li> SPL4SMLM: SMAP L4 Global 9 km Surface and Rootzone Soil Moisture
Land Model Constants</li>
<li> SPL4CMDL: SMAP L4 Global Daily 9 km Carbon Net Ecosystem Exchange
<li> MOD09_L2: MODIS Terra Level 2 surface reflectance</li>
<li> MYD09_L2: MODIS Aqua Level 2 surface reflectance</li>
<li> MOD04_3K: MODIS Terra Near Real Time NRT Level 2 aerosol product</li>
<li> MYD04_3K: MODIS Aqua Near Real Time NRT Level 2 aerosol product</li>
<li> AE_SID Level-3 gridded product: AMSR-E/Aqua Daily L3 6.25 km Sea Ice Drift Polar Grids (sea ice speed and direction)</li>
<li> MISR_HR_TIP MISR SOM grid with Unstacked blocks</li>
<li> MISR_HR_RPV MISR SOM grid with Unstacked blocks</li>
<li> MISR_HR_BRF MISR SOM grid with Unstacked blocks</li>
</ol><br>
<li> 6) Subsetted Swath outputs for Swath inputs with hdf-eos output requests</li>
<li> 7) HEG source code branching for HDF5 and HDF-EOS5 for quick support of other HDF5 and HDF- EOS5 products in future</li>
<li> 8) Inclusion of Time field with geofields when swath output is
requested.</li>
<li> 9) Support for Lambert Azimuthal Equal Area projection in GCTP for
Ellipsoidal earth model (WGS84), for support of SMAP EASE2 grid
products</li>
</ul>
</div>
<a href="javascript:InsertContent('id6');">Upcoming new features (soon)</a><br><br>
<div id="id6" align="left" style="display: none;">
<ul type="disc">
<li>Support for more VIIRS products</li>
<li>Support for ICESAT-2 L3/L4 products</li>
L2 products</li>
<li> 6) MODIS/VIIRS Sinusoidal tile location image</li>
<li> 7) Support for more than 20 Ellipsodal/Spherical Earth models/Datums</li>
<li> 8) Support for Solaris 11 was dropped becuase of compiler problems</li>
<li> 9) Support for Sinusoidal projection in GCTP for
Ellipsoidal earth model (WGS84), for support of datum/ellipsoid change
</li>
</ul>
</div>
<a href="javascript:InsertContent('id9');">New Features/Enhancements/Bug Fixes in version 2.13 (<a href="HEG_2.13_Release_Notes.html"><font color="red">Released November 2015</font></a>)<br><br>
<div id="id9" align="left" style="display: none;">
<ul type="disc">
<li> 1) More bug fixes concerning issues with multiple runs, output GeoTIFF
reading problems by some GIS tools, Subsetting MISR to requested
area (after stitching needed blocks), hang-up for some MISR
products, Stitch problems with MODIS swath granules, Better
interpolation for swath conversion </li>
<li> 2) Improvement in GUI user interaction concerning field images for 3-D
and 4-D fields used for subsetting Lat/Lon setting</li>
<li> 3) Support for Windows 8 and 10 and Solaris 11 (32-bit)</li>
<li> 4) Internal batch processing for large quantities of granules from the same product.</li>
<li> 5) Support for some new products</li>
<ol type="a">
<li> SPL3FTA: SMAP L3 Radar Northern Hemisphere Daily 3 km EASE-Grid Freeze/Thaw State</li>
<li> SPL3SMA: SMAP L3 Radar Global Daily 3 km EASE-Grid Soil Moisture</li>
<li> SPL3SMP: SMAP L3 Radiometer Global Daily 36 km EASE-Grid Soil Moisture</li>
<li> SPL3SMAP: SMAP L3 Radar/Radiometer Global Daily 9 km EASE-Grid Soil
Moisture</li>
<li> SPL4SMAU: SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil
Moisture Analysis Update</li>
<li> SPL4SMGP: SMAP L4 Global 3-hourly 9 km Surface and Rootzone Soil
Moisture Geophysical Data</li>
<li> SPL4SMLM: SMAP L4 Global 9 km Surface and Rootzone Soil Moisture
Land Model Constants</li>
<li> SPL4CMDL: SMAP L4 Global Daily 9 km Carbon Net Ecosystem Exchange
<li> MOD09_L2: MODIS Terra Level 2 surface reflectance</li>
<li> MYD09_L2: MODIS Aqua Level 2 surface reflectance</li>
<li> MOD04_3K: MODIS Terra Near Real Time NRT Level 2 aerosol product</li>
<li> MYD04_3K: MODIS Aqua Near Real Time NRT Level 2 aerosol product</li>
<li> AE_SID Level-3 gridded product: AMSR-E/Aqua Daily L3 6.25 km Sea Ice Drift Polar Grids (sea ice speed and direction)</li>
<li> MISR_HR_TIP MISR SOM grid with Unstacked blocks</li>
<li> MISR_HR_RPV MISR SOM grid with Unstacked blocks</li>
<li> MISR_HR_BRF MISR SOM grid with Unstacked blocks</li>
</ol><br>
<li> 6) Subsetted Swath outputs for Swath inputs with hdf-eos output requests</li>
<li> 7) HEG source code branching for HDF5 and HDF-EOS5 for quick support of other HDF5 and HDF- EOS5 products in future</li>
<li> 8) Inclusion of Time field with geofields when swath output is
requested.</li>
<li> 9) Support for Lambert Azimuthal Equal Area projection in GCTP for
Ellipsoidal earth model (WGS84), for support of SMAP EASE2 grid
products</li>
</ul>
</div>
<a href="javascript:InsertContent('id7id6');">Possible>Upcoming upcoming new features (further in the futuresoon)</a><br><br>
<div id="id7id6" align="left" style="display: none;">
<ul type="disc">
<li>Support for more AURA data and other SMAP VIIRS products</li>
<li>Support for ICESAT-2 <li>Feature to help work with bit fields in the MOD35_L2 Cloud Product.</li>L3/L4 products</li>
</ul>
<li>MultiBandGeoTIFF for STITCH/MOSAIC output.</li>div>
<a href="javascript:InsertContent('id7');">Possible upcoming new features (further in the future)</ul>a><br><br>
Let us know if you have particular interest in some of the above or if you
<div id="id7" align="left" style="display: none;">
have other suggestions! <a<ul hreftype="HEGContact.html">We appreciate your feedback</a>.<br><br>
disc">
</div>
<b><font color="red">BUGS, PROBLEMS, QUESTIONS, or SUGGESTIONS?</b> <a href="HEGContact.html">Please Contact Us! </a></font>
<li>Support for more AURA data and other SMAP products</li>
</font>
</td>
<li>Feature to help work with bit fields in <td align="center" valign="top" width="150">the MOD35_L2 Cloud Product.</li>
<font face="Verdana" size="1">
<li>MultiBandGeoTIFF for STITCH/MOSAIC output.</li>
<br>
<img src="images/ASTER_safari_small.png" border="0"><br>ASTER (AST_L1B)<br><br>
</ul>
Let us know <img src="images/MISR_etna_stitch_small.png" border="0"><br>MISR (MI1B2T)<br><br>
<img src="images/AST_L1B_wildfire_small.png" border="0"><br>ASTER (AST_L1B)<br><br>
if you have particular interest in some of the above or if you
have other suggestions! <img<a srchref="images/pg-PR1B0000-2001083102_small.png" border="0"><br>ASTER (AST_L1B)<br><br><br>
HEGContact.html">We appreciate your feedback</a>.<br><br>
</div>
<b><font color="red">BUGS, PROBLEMS, QUESTIONS, or <aSUGGESTIONS?</b> <a href="HEGGallery_ScreenshotsHEGContact.html"><font face="Verdana" size="2"><br>View<br>HEG Screenshots<br><>Please Contact Us! </a></font>
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<b>Webmaster:</b> <a href="mailto:heg-support@earthdata.nasa.gov">HEG Support</a><br>
<b>Web Designer:</b> <a>Tony Fu</a>, <a>William Valencia</a><br>
<B><FONT face="Lucida Sans Unicode">Responsible NASA Official
<A href="mailto:tracy.l.zeiler@nasa.gov">Tracy L. Zeiler</A></FONT></B>
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<B><FONT face="Lucida Sans Unicode">
<A href="http://www.nasa.gov/about/highlights/HP_Privacy.html">NASA Web Privacy Policy and Important Notices</A></FONT></B>
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<b>Last Updated:</b> April 22, 2019 (<a href="mailto:heg-support@earthdata.nasa.gov">HEG Development Team)</a><br>
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