ForWarn II

Satellite-Based Change Recognition and Tracking

News

07/06/2022 - 13:15

View ForWarn III, Sentinel-3-based forest change products now in ArcGIS Online (AGOL).

No ESRI account required, use this AGOL web map 'as is' or add other data layers from your agency's' AGOL account or from the Living Atlas. Use the Web Map Service (WMS) to display these layers in your desktop GIS with your own, local data.

...

06/30/2022 - 08:57

ForWarn 'II' uses NASA's MODIS satellite imagery. Currently, NASA MODIS have not supplied source imagery since May 24, 2022. ForWarn II production using this data stream has been discontinued.

ForWarn 'III" products continue to be generated using ESA's Sentinel-3 imagery, and include 3-versions of the new 6-day, 'Early-Early Detect'...

06/30/2020 - 10:36

2020. Norman, Steven P.; Christie, William M.. Chapter 7 - Satellite-based evidence of forest stress and decline across the conterminous United States for 2016, 2017, and 2018 (https://www.fs.usda.gov/treesearch/pubs/60387). In: Potter, Kevin M.; Conkling, Barbara L., eds. Forest...

05/14/2017 - 09:17

ForWarn has always allowed users to view historical 8-day NDVI data, and this capability provides important long-term context for understanding disturbance impacts, recovery, inherent differences among vegetation types and seasonal phenology. Due to processing requirements, these historical MODIS data are posted only after a year has passed....

11/16/2016 - 11:03

Sap-sucking insects called hemlock woolly adelgids are draining the life from a common evergreen tree in the eastern United States. Once the non-native bugs become well-established, the consequences can be grave. Areas with severe infestations can see up to 90 percent of hemlocks die within about ten years. Check out the full article...

09/22/2016 - 09:47

Some disturbances come and go, leaving forests no worse for the wear.

Hailstorms, insect defoliations, and light prescribed fires, for example, commonly occur early in the growing season, but, because of the timing and nature of these disturbances, trees and other vegetation may quickly regrow leaves after the damage is done. In such...

11/23/2015 - 13:49

ForWarn team members attended the 2015 Association for Fire Ecology Meeting in San Antonio, TX in November 2015 to present research on long-term monitoring based on ForWarn’s NDVI products. You can find a poster dealing with fire regime impacts in the Okefenokee National Wildlife Refuge here:...

09/02/2015 - 10:09

ForWarn’s viewer was designed to let users recognize and interpret change, and interpretation is supported by ancillary map layers from a variety of sources. Until recently, change caused by fuels treatments such as thinning and prescribed fire, have been hard to interpret for want of maps. With the addition of this management layer,...

05/14/2015 - 16:25

The Fire Learning Network (FLN) brings managers and scientists together to address common problems and solutions related to wildland fire. Eastern Threat Center research ecologist Steve Norman and biological scientist...

04/10/2015 - 10:37

ForWarn was featured in several national-level websites after last week's press release.

Pages