The U.S. Insular Areas (IA) which include the Pacific and Caribbean Islands and Territories data are provided in zipped file by island group. The zipped file includes all the products and relevant resources for each island group.
Beginning with LF 2016 Remap, Disturbance products are included with IA extents. The new Operational Roads product introduced with LF 2020 is also available for a limited number of islands. Please note, that due to limited availability of input data and imagery, some of the IA have a restricted set of products and only some islands are updated with the release of a new version, such as the LF 2020 update for Puerto Rico and the U.S. Virgin Islands.
Checksums are used to verify (check) the integrity of files and identify data transmission errors, typically after copying or moving them. An MD5 checksum is a 32-character hexadecimal number that is computed on a file. If two files have the same MD5 checksum value, then there is a high probability that the two files are the same.
After the user downloads a file to their computer, they can generate an MD5 value on the same file and compare the values. There are a variety of MD5 checksum programs available on the Internet. If the checksum values differ, then there is something wrong with the downloaded file and it should be downloaded and checked again. If problems persist, contact the LANDFIRE Help Desk.
For example: an MD5 value can be generated in MS DOS using the command "CertUtil -hashfile <path><file> MD5", or in linux by using the "md5sum <path><file>" command.
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