August 2, 2024—Sulfur Cone gas monitoring maintenance
Detailed Description
The continuously monitoring Multi-Gas instrument at Sulfur Cone is housed inside the black Pelican case shown here. Air is pulled into the instrument via a small pump to be analyzed for volcanic gases (Sulfur Dioxide, Hydrogen Sulfide, Carbon Dioxide and Water Vapor). Meteorological parameters (Wind Speed/Wind Direction, Temperature/Humidity) along with fumarole temperature are also collected at the site. Monitoring the ratios of the different volcanic gases here can help HVO Gas Scientists identify any changes to the magmatic system beneath Mauna Loa. USGS photo by M. Cappos.
Sources/Usage
Public Domain.