Objectives

This course has been segmented into four modules that vary in length (from 60 to 90 minutes). The first module, Volcanic Ash: Introduction, introduces volcanoes and provides a platform to launch the other three modules. The second module, Volcanic Ash: Volcanism, provides information on the geological, geophysical, and geochemical processes related to volcanic activity and volcanic ash in the atmosphere and on the ground. The third module, Volcanic Ash: Observation Tools and Dispersion Models, provides information on the tools, the remote sensing resources, and dispersion models used in monitoring volcanic activity and eruptions. The final module, Volcanic Ash: Impacts to Aviation, Climate, Maritime Operations, and Society, provides information related to the impact of volcanic ash on aviation, climate, society, and maritime operations.

Upon successful completion of this course, the meteorologist will be able to:

Volcanism

  • Identify the geological elements involved in volcanic eruptions
  • Locate currently active volcanoes and major fault lines and plate boundaries in the world
  • Describe the process of an explosive volcanic eruption
  • Identify eruption types and describe their ash dispersion patterns
  • List the most common volcanic hazards and the threats they pose

Observation Tools and Dispersion Models

  • Identify dispersion models used to predict air parcel trajectories
  • Explain the limitations and strengths of dispersion models
  • Use dispersion models to select the most likely air parcel trajectory
  • Identify satellite products that depict volcanic eruptions
  • Determine ash cloud top from satellite observations and atmospheric soundings
  • Describe the strengths and weaknesses of satellite observations
  • Identify the presence of volcanic ash using satellite observations

Impacts to Aviation, Climate, Maritime Operations, and Society

  • Describe the mechanical and chemical impacts of volcanic ash on aircraft
  • Order the steps for appropriate response to the possibility of volcanic ash fall based on the national guidelines
  • Prepare a volcanic ash text product for use by external agencies
  • Explain the impacts of volcanic ash on atmospheric processes in both the short-term (weather) and in the long-term (climate)
  • Discuss the impacts of volcanic ash on the general public
  • Discuss the products, such as ash fall advisories and warnings, available to the public
  • Discuss the impacts of volcanic ash on ships and facilities