The following document describes the technical issues and how they are solved in GlobToolbox 2.0.

General

[R-5] File name convention mutable by user

Regular expression can be used to define file name conventions to identify valid Glob Products.

1. The expressions can be altered by the user in the user preferences dialogue.
   There the preferences dialogue needs to be extensible.
2. The expression can be defined in a settings file. Which can be edited by a standard text editor.

Data Products distributed as compressed files

Nearly all data products are distributed as compressed files (ZIP, GZ). It would be convenient for the user if the GlobToolbox can handle compressed files.

• Annual World ATSR Fire product are distributed as zipped files containing 12 compressed (GZ) files for each month.
• Annual and bimonthly GlobCover products are provided in tiles. Each one is compressed and is a lot smaller in size as the uncompressed version (e.g. compressed: 677 KB ; uncompressed: 136 MB).
  It would be unacceptable for the user to unpack all of these files. At least for such products the GlobToolbox should handle compressed data.

World ATSR Fire Atlas

The data is provided in 2 formats. One format for ATSR2 and one for AATSR.
Both are in ascii format and provide information about detected fire in the world.
Common to both formats is that they provide date, time, and latitude and longitude for each fire on a separate line.
While the AATSR data provides the orbit number as additional information, the ATSR data provides NDVI and the station.
Both, NDVI and station, have a constant value. For NDVI it is -.-- and for station it is ESR.

As both formats just provide point data, and are not on a regular grid, there are two alternatives how they can be displayed.

1. Along with gridded data which provides the grid context, e.g as a layer on top of any other product.
2. Alternatively a grid can be defined while the data is read. This would allow to have World ATSR Fire information as a standalone product.

The information which algorithm was used for the fire detection is only provided within the file name. This means to provide the full information to the user, the file name can not be changed. This conflicts with [R-5]. One options is to let the user define which portion of the file name define the algorithm.

GlobCarbon

According to the product specification the BAE and GBP products (1KM, 10KM) shall be available in Interrupted Goode Homolosine projection, but this seems to be true only for the BAE products. The GlobToolbox can reproject products defined on a Plate Carée map to the Interrupted Goode Homolosine map projection, and vice versa.

GlobCover

Annual and bimonthly GlobCover products are distributed as 5°x5° tiles. It shall be possible to open a folder with multiple tiles as a world product but also to open a single tile to view only covered region of the tile.