Category: News

Large Wildfires in California

By Elijah Mt. Castle

California has experienced several large wildfires over the month of August. The Dixie fire has been burning since July 13th and has grown over 910,000 acres. The Caldor fire started August 14th and has grown to over 216,000 acres. The River Complex and Monument Fire  both started on July 30th and are relatively smaller fires, 121,000 and 183,000 acres respectively. Numerous structures have been destroyed and thousands of residents have been displaced by the various fires. The Dixie Fire alone has destroyed 692 homes. The Monument Fire and River Complex were started by lightning. The other major fires are still under investigation. Dry conditions and wind have severely impacted fire suppression tactics over the month and all fires specifically listed are continuing to burn into September with some having predicted containment in October. Pictured are the VIIRS Night Fire detections for August with an associated temperature range. The darker the color in a location the longer a detection has been present. Also pictured is the VIIRS day/night band radiance for August 17th.

VIIRS Nightfire Detections in Colombia and Venezuela, February 17, 2020.

This image shows the VIIRS nightfire (VNF) detections from early this morning in the northern end of South America.  The placemarks indicate detections, which are color coded based on temperature.  Red are the hottest and are locations with natural gas flaring.  Purple, blue and green are cooler events resulting from biomass burning.  Yellow placemarks can be cooler gas flares or the biomass burning.  Each of the colored placemarks has estimates for temperature and source size based on the input of the multispectral detection radiances into physical laws. The small white place marks are pixels with detection in a single band, a condition which precludes the calculation of temperature and source size.  There is a large cluster of gas flares active in east-central Venezuela.  Biomass burning was widespread through the tropical savanna (cerrado) running from west central Venezuela into southern Colombia.  The VNF product is typically available from EOG with four hours of the satellite overpass.  EOG generates separate detection files for the tow VIIRS instruments collecting at this time, on the SNPP and NOAA-20 satellites.

EOG Poster File

This highly sought-after poster, rendered by EOG, is now available for download in PDF format.

The poster showcases carefully enhanced features from a one-year accumulation of three major products: Nighttime Light, Boat Detection, and Nightfire.

Countless details are waiting for you to discover! The image includes highlighted features and annotated data.

The file can be printed to a 2:1 aspect ratio, best at 72″ x 36″.

Download here [68MB].