• San Bernardino County, California
  • Terra & Aqua/MODIS
  • 06/18/2015

What are all the red dots near Big Bear Lake?

Each red dot indicates a thermal anomaly and the likely location of a fire. These hot spots are detected by the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA's Terra and Aqua Earth observing satellites. The white plume pointing east is smoke.

Managing wildland fires with NRT satellite observations

NASA's Land, Atmosphere Near real-time Capability for EOS (Earth Observing System), or LANCE system, provides thermal anomaly and other satellite-collected data within roughly 3 hours of a satellite overpass. Imagery created from these near real-time data are available through LANCE generally within 3-5 hours of an overpass.


The Earth Observing System Data and Information System is a key core capability in NASA’s Earth Science Data Systems Program. It provides end-to-end capabilities for managing NASA’s Earth science data from various sources—satellites, aircraft, field measurements, and various other programs.

Fires and smoke in Northern Canada

Captured by the MODIS instrument on 28 June 2015, on board the Aqua satellite

Who Uses NASA Earth Science Data?

Shake, rattle, and sink

Subsidence in the McMullen Valley Groundwater Basin, Arizona

Who Uses NASA Earth Science Data?

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