Launched July 2022, the purpose of the EMIT (Earth surface MIneral dust source invesTigation) mission is to better constrain the effect of mineral dust on atmospheric radiative forcing. It will accomplish this by mapping common minerals in dust source regions using an imaging spectrometer aboard the International Space Station. With ~7-nm spectral sampling across the reflected solar spectrum (380 – 2500 nm), EMIT spectra contain information about mineral composition, including ferric iron and clay minerals. This talk will describe EMIT, review the principles of mineral identification through spectroscopy, and discuss the application of these results for global radiative transfer modeling to better understand dust’s role in the Earth’s climate system
Date : November 9, 2022 at 12:00pm CEST (UTC-8)