Objectives, Measurements and Data Products of the NASA Earth Surface Mineral Dust Source Investigation
Abstract
The NASA Earth Surface Mineral Dust Source Investigation (EMIT) is being developed to measure the mineral compostion of the arid dust source regions and adjacent lands of the Earth from the International Space Station (ISS). The current composition of the Earth's mineral dust source regions is uncertain and limiting avenues of research. The EMIT mission will use state-of-the-art imaging spectroscopy spanning the visible to short wavelength infrared (VSWIR) region of the electromagnetic spectrum to record and analyze the distinct spectral signatures of a set of designated dust source minerals. These new measurements and related data products will be validated and used to update the initialization of state-of-the-art Earth System Models. With improved initialization, these models will be used by the EMIT team to investigate and reduce uncertainty in the radiative forcing impacts of mineral dust aerosols in the Earth system. Both current impacts and impacts under future climate senarios will be assessed. This paper describes the status of the EMIT development and the details of the measurements, algorithms, and data products that are planned to be used. EMIT data products will be delivered to a NASA archive and made available to the full science and user community for modeling studies and the additional disciplinary investigations that they enable.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.A34B..08G
- Keywords:
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- 0305 Aerosols and particles;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 3305 Climate change and variability;
- ATMOSPHERIC PROCESSES;
- 3322 Land/atmosphere interactions;
- ATMOSPHERIC PROCESSES;
- 1622 Earth system modeling;
- GLOBAL CHANGE