Polaris Interface Release Notes

Deployment history is listed in reverse chronological order. If you have any questions regarding a particular enhancement or bug fix, please reference the Ticket No. for that enhancement or bug fix when contacting NSIDC User Services.

Version 1.1 ::Version 1.0 ::Version 0.1.4 :: Version 0.1.3 :: Version 0.1.2 :: Version 0.1.1 :: Version 0.1

Version 1.1 - 2011-02-07

Reason For Release

The main reason for this release was to fix some interface bugs. A few new features and enhancements were made in this release.

New Features/Enhancements

Ticket No.
Summary
1161
Polaris now supports the SubsetAgent/GetData Application Programming Interface (API), which provides a simple way to search and access NSIDC's data holdings that are hosted through Searchlight. It allows for the search and customization (subsetting, reprojection, and reformatting) of NSIDC data with immediate downloads.
1304
All header text files will now include a .sub and .reproj extensions to make the file naming convention consistent with the data file. This should eliminate confusion for the user.


Version 1.0 - 2010-11-17

Reason For Release

The main reason for this release was to deploy Version 1.0, the first major release of the Polaris interface. A few new features, enhancements, and some interface bug fixes were made in this release.

New Features/Enhancements

Ticket No.
Summary
541
Jobs are now persisted if there should be a system failure. Thus, any job that is waiting or running will be restarted when the system comes back up and any job that is complete can still be accessed after the system comes back up.
72 and 227
The queue has been significantly improved so that it now displays much more information for the user than it did before, such as output format, archive format, variables and attributes requested, number of measurements, and the number of output files to name just a few of the enhancements made to the queue.
674
The selection box drawn on the geospatial map is now resizable. The user can grab corner points or sides of the polygon and move them.
910
All GeoTIFF files will have a Searchlight header file with a minimum value and a maximum value field.
883
Users familiar with the archive data grid can now obtain subset pixel coordinates from the metadata file to aid them in reading the data.
1066
The job processing capabilities of the Polaris Tool have been enhanced so users will experience faster Web response time when downloading data and reformatting, reprojecting, and subsetting the data.
1069
The OpenSearch API, which provides a simple way to discover and access NSIDC's data holdings, has been enhanced, now allowing for granule level searching of a data set, which returns exact links to access the data granules.


Bug Fixes

Ticket No.
Summary
1078
Flat binary files were not reprojecting properly. Thus, when a user now selects reprojection for flat binary files without reformatting or subsetting, the reprojection will now be done.
809
Users were receiving subsetting error messages for SNODAS data. This problem was fixed and subseting should now work with SNODAS data.

Version 0.1.4 - 2010-08-05

Reason For Release

The main reason for this release was to deploy accumulated Critical and High priority bug fixes, and a few new features and enhancements.

New Features/Enhancements

Ticket No.
Summary
1003
Polaris now supports OpenSearch, which provides a simple way to discover and access NSIDC's data holdings.


Bug Fixes

Ticket No.
Summary
966
There was a problem with incorrect netCDF default values. If a fill value was missing from the database, netCDF files were filling in an incorrect default value.

Version 0.1.3 - 2010-06-28

Reason For Release

The main reason for this release was to deploy accumulated Critical and High priority bug fixes, and a few new features and enhancements.

New Features/Enhancements

Ticket No.
Summary
28
Extended the data download queue to allow for cancelling and deleting a package.
686
The geospatial selection box now reprojects when a user changes the projection.
695
Added a feedback link to each interface Web page.


Bug Fixes

Ticket No.
Summary
596
Added a warning to the download configuration popup window when a job is very large.
598
GeoTiff file had no header information.
642
The start and stop date in the Results Explorer was displaying incorrectly.
651
The data/metadata was inconsistent for the Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I Passive Microwave data set.
691
Added a warning popup to the Add to Queue behavior when there is a heavy system load.
745
The Search Summary button on the Results Summary Web page was broken.
769
The wrong resolution was listed for the GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of Greenland data set.
813
The projection grid borders in netCDF files were reversed in Y.
814
SNODAS subsetting results were incorrect.
824
SNODAS was throwing inventory errors.
825
A page reload on the same tab instead of a new tab wasn't reloading the tab.
842
GLAS DEM data was not matching the ENVI header information when it was subsetted.
869
The text search was not working.
884
The search area was resetting to the global region for some text inputs.
935
SNODAS upper left corner was incorrect.
942
Latitude/longitude boxes for the north polar projection was showing coordinate space, not latitude/longitude.
951
Arrows on the scroll bar for data sets and variables was not working.
953
When performing a text search, an error was displaying in the results.
955
The text search was not returning hits for polar stereographic.
967
The Time variable was filled with zeros in multi-file netCDF downloads.
968
In the configuration popup window, when you would scroll down, the map would move with the scroll bar.

Version 0.1.2 - 2010-03-03

Reason For Release

This release contains no interface bug fixes, and no new features or enhancements were made in this release.

New Features/Enhancements

Not applicable.

Bug Fixes

Not applicable.


Version 0.1.1 - 2010-02-09

Reason For Release

This release contains fixes to several known bugs. No new features or enhancements were made in this release.

New Features/Enhancements

Not applicable

Bug Fixes

Ticket No.
Summary
659
The subsetting for the ice sheet melt data set was incorrect.
687
The Results Explorer play button wasn't working.
688
The Sea Ice Concentration data set browse images were not displaying.
750
The AMSR-E EASE-grid products were not up-to-date in database.
751
GeoTiff files were not loading correctly into ArcGIS.
756
The GLAS/Icesat elevation model of Greenland data set failed when picking the mean distance variable.
768
SNODAS distribution was throwing exceptions when ordered as netCDF.
709
The GLAS DEM spatial subset was failing.
746
An error was being thrown for the EASE-Grid 8-day Blended SSM/I and MODIS Snow Cover data sets when no measurment attributes were selected.

Version 0.1 - 2010-01-19

Reason For Release

NSIDC is changing our user access model from Search and Order (Wait and Download) to Discovery and Access with our new Beta Advanced Data Search Tool, which delivers data downloads immediately, with the user in control of on-the-fly reformatting, reprojection, and subsetting of the data. In this way, we are delivering only what the user wants, and how they want it. The sooner our users can obtain what they want, in a format they can quickly understand and use, the more time they have to devote to their own scientific investigations. Our new Beta Advanced Data Search Tool supports users finding and browsing actual data holdings online. No more waiting for FTP staging followed by lengthy research to open and view data, only to find that it is not what you wanted or expected. Currently, the new Beta Advanced Data Search Tool includes 13 of NSIDC's most popular data sets. We plan on making all of our data holdings discoverable with this tool later in 2010.

New Features/Enhancements

Not applicable

Bug Fixes

Not applicable