|Washington VAAC - Volcanic Ash Advisories||After a strong eruption, volcanic ash will stand out against the background of low clouds, cirrus clouds (composed of ice), and cloud-free regions in satellite imagery. This text product is created referencing infrared, visible and multi-spectral satellite imagery along with other guidance. The written text message incorporates what can currently be seen in imagery, pilot reports, observatory information, forecast trends and other available information. |
Product Link | Most Recent Advisories | Current Year Archive
|GOES, Meteosat, FY-2C, MSG, AVHRR, and MODIS||Resolution: N/A||Frequency: Event Driven|
|HYSPLIT Trajectories||The HYbrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model is the newest version of a complete system for computing simple air parcel trajectories to complex dispersion and deposition simulations.
|GFS||Resolution: Varies||Frequency: Event Driven|
|SO2 Detects from Ozone Monitoring Instrument (OMI)||The OMI_SO2 product utilizes the SO2 absorption channels of the Ozone Monitoring Instrument flown aboard NASA's Aura spacecraft to identify and monitor passive SO2 outgassing and SO2/ash emissions from volcanic eruptions. A global composite as well as a set of fixed volcanic regions containing near real time SO2 signatures are updated on a daily basis.
|MODIS/Aqua||Resolution: 5 Km||Frequency: Every 2 Hours|
|Real Time GOES Volcano Imagery||Satellite Imagery over volcanoes of interest and those being monitored by the Washington VAAC. Still and loop imagery with multiple enhancements is featured.
|GOES||Resolution: Varies||Frequency: 15 - 30 Minutes|