LANCE Users mailing list (For general updates about LANCE).LANCE FIRMS mailing list (For general updates on the Fire Information for Resource Management System).To unsubscribe: e-mail (no subject or text is required).To subscribe: e-mail (no subject or text is required).
LANCE-MODIS mailing list (For updates regarding NRT data from MODIS aboard Terra and Aqua and VIIRS/Land aboard Suomi NPP and NOAA-20 this will keep you up-to-date with data outages that may impact the MODIS and VIIRS active fire products).Subscribe to receive notifications from LANCE and FIRMS about updates, announcements, data issues, and scheduled maintenance. How do I stay informed about updates, announcements, data issues, and scheduled maintenance?
NASA FIRE MAP HOW TO
Learn how to ingest WMS into ArcGIS and customize the symbols Support and Mailing Lists Who do I contact for support with FIRMS?įor questions about LANCE, FIRMS or user registration, contact Earthdata Support.
Are there any restrictions on using data or imagery from FIRMS?.I only see fire data available for the last 7 days on your website.What are the attributes / fields of the active fire data?.Why was a particular fire not detected?.What time does the satellite pass over my area?.How often are the active fire data acquired?.What are the different sources of fire data in FIRMS?.What does a fire detection mean on the ground?.What are the key differences between URT/RT/NRT and Standard quality fire data?.Where can I find the MODIS and VIIRS Active Fire User guides?.What active fire data and imagery are available in FIRMS Global?.Please also see: Are there ever false detections or data artifacts? Getting started See: Super heated smoke plumes cause data artifacts in nighttime detections (August 3, 2018). This new product, called FireCCI51, is publicly available at:, last accessed on September 2019.Warning: Super-heated smoke plumes can cause artifacts in nighttime detections. Besides, the new product was found more sensitive to detect smaller burned patches. However, the new algorithm estimated an average BA of 4.63 Mkm 2, with a maximum of 5.19 Mkm 2 (2004) and a minimum of 3.94 Mkm 2 (in 2001), increasing current burned area estimations. The inter-comparison carried out with previous Fire_cci versions (FireCCI41 and FireCCI50), and NASA's standard burned area product (MCD64A1 c6) showed consistent spatial and temporal patterns. When using longer validation periods, the errors were found smaller (54.5% omission and 25.7% commission for the additional 1000 African sampled sites), which indicates that the product is negatively influenced by temporal reporting accuracy. Validation based on 1200 sampled sites covering the period from 2003 to 2014 showed an average omission and commission errors of 67.1% and 54.4%.
NASA FIRE MAP SERIES
The algorithm was used to obtain a time series of global burned area dataset (named FireCCI51), covering the 2001–2018 period.
NASA FIRE MAP PATCH
Finally, a contextual growing approach is applied from those pixels to the neighbouring area to fully detect the burned patch and reduce omission errors. To do that, spatio-temporal active-fire clusters are created to determine adaptive thresholds. In the first step, pixels with a high probability of being burned are selected in order to reduce commission errors. The burned area is detected in two phases. The algorithm is based on a hybrid approach that combines MODIS highest resolution (250 m) near-infrared band and active fire information from thermal channels. This paper presents the generation of a global burned area mapping algorithm using MODIS hotspots and near-infrared reflectance within ESA's Fire_cci project.
0 kommentar(er)
