Reason for alert: As part of the LANDFIRE (LF) 2020 update new topographic products (Slope, Aspect, and Elevation) have been released for the Conterminous U.S. (CONUS), Alaska (AK), Hawaii (HI), and Puerto Rico and the Virgin Islands (PRVI). This release corrects Aspect, which is now calculated from true north.
Updated product(s) or information: LF 2020 (LF 2.2.0) Slope Degree, Slope Percent Rise, Aspect, and Elevation for CONUS, HI, AK, and PRVI were released on 02/15/2022. Full extent mosaic bundles have also been released.
Problem or issue description: The new LF 2020 topographic products are consistently calculated from true north correcting earlier topographic products where Aspect was calculated incorrectly. Users are advised to download these new LF 2020 Slope Degree (previously known as Slope), Slope Percent Rise, Aspect, and Elevation products for CONUS, HI, AK, and PRVI to replace any topographic products that were downloaded prior to February 15, 2022. We also advise that users that have LCP files created prior to this update re-create them.