In addition to providing valuable information on stratospheric chemistry, the EOS Aura MLS instrument will be able to make measurements on other catastrophic events that have effects on the global climate. The picture above shows measurements of SO₂ made after the eruption of Mount Pinatubo in 1991 - these measurements were made by the MLS instrument that was flown on the UARS satellite. The UARS MLS instrument is the predecessor to the version that will fly on EOS Aura.