Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The vehicle-based UV spectrometer is routinely driven beneath the summit and East Rift Zone gas plumes to measure sulfur dioxide gas emissions during typical trade-wind conditions.
