: Certain third-party mirrors use these codes to catalog regional terrain data for GPS devices.
While this exact alphanumeric string often appears in technical file listings or data mirrors, it is typically linked to: TOPO002d991.7z
If you are looking for the specific research paper that utilizes this file, it is often documented in: : Certain third-party mirrors use these codes to
: The Spanish National Geographic Institute often uses similar coding for their 1:25,000 or 1:50,000 scale topographic series. : If you have the
: Check the "Data Availability" or "Methodology" sections of papers discussing geomorphology, hydrology, or urban planning in the region the data covers.
: If you have the .7z file, look for a readme.txt or .xml metadata file inside. These files typically list the official citation, the authoring body, and the "paper of record" for the dataset. Common Regions Using This Naming Convention